hedgewars/uCollisions.pas
author koda
Sat, 08 Oct 2011 00:04:18 +0200
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(*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2011 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 *)
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{$INCLUDE "options.inc"}
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unit uCollisions;
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interface
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uses uFloat, uTypes;
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const cMaxGearArrayInd = 1023;
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type PGearArray = ^TGearArray;
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    TGearArray = record
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            ar: array[0..cMaxGearArrayInd] of PGear;
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            Count: Longword
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            end;
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procedure initModule;
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procedure freeModule;
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procedure AddGearCI(Gear: PGear);
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procedure DeleteCI(Gear: PGear);
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function  CheckGearsCollision(Gear: PGear): PGearArray;
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function  TestCollisionXwithGear(Gear: PGear; Dir: LongInt): boolean;
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function  TestCollisionYwithGear(Gear: PGear; Dir: LongInt): Word;
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function  TestCollisionXKick(Gear: PGear; Dir: LongInt): boolean;
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function  TestCollisionYKick(Gear: PGear; Dir: LongInt): boolean;
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function  TestCollisionX(Gear: PGear; Dir: LongInt): boolean;
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function  TestCollisionY(Gear: PGear; Dir: LongInt): boolean;
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function  TestCollisionXwithXYShift(Gear: PGear; ShiftX: hwFloat; ShiftY: LongInt; Dir: LongInt; withGear: boolean = true): boolean;
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function  TestCollisionYwithXYShift(Gear: PGear; ShiftX, ShiftY: LongInt; Dir: LongInt; withGear: boolean = true): boolean;
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function  TestRectancleForObstacle(x1, y1, x2, y2: LongInt; landOnly: boolean): boolean;
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function  CalcSlopeTangent(Gear: PGear; collisionX, collisionY: LongInt; var outDeltaX, outDeltaY: LongInt; TestWord: LongWord): Boolean;
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implementation
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uses uConsts, uLandGraphics, uVariables, uDebug, uGears;
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type TCollisionEntry = record
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            X, Y, Radius: LongInt;
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            cGear: PGear;
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            end;
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const MAXRECTSINDEX = 1023;
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var Count: Longword;
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    cinfos: array[0..MAXRECTSINDEX] of TCollisionEntry;
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    ga: TGearArray;
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procedure AddGearCI(Gear: PGear);
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var t: PGear;
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begin
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if Gear^.CollisionIndex >= 0 then exit;
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TryDo(Count <= MAXRECTSINDEX, 'Collision rects array overflow', true);
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with cinfos[Count] do
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    begin
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    X:= hwRound(Gear^.X);
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    Y:= hwRound(Gear^.Y);
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    Radius:= Gear^.Radius;
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    ChangeRoundInLand(X, Y, Radius - 1, true);
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    cGear:= Gear
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    end;
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Gear^.CollisionIndex:= Count;
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inc(Count);
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// mines are the easiest way to overflow collision
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if (Count > (MAXRECTSINDEX-20)) then
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    begin
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    t:= GearsList;
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    while (t <> nil) and (t^.Kind <> gtMine) do 
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        t:= t^.NextGear;
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    if (t <> nil) then DeleteGear(t)
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    end;
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end;
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procedure DeleteCI(Gear: PGear);
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begin
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if Gear^.CollisionIndex >= 0 then
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    begin
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    with cinfos[Gear^.CollisionIndex] do
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        ChangeRoundInLand(X, Y, Radius - 1, false);
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    cinfos[Gear^.CollisionIndex]:= cinfos[Pred(Count)];
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    cinfos[Gear^.CollisionIndex].cGear^.CollisionIndex:= Gear^.CollisionIndex;
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    Gear^.CollisionIndex:= -1;
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    dec(Count)
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    end;
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end;
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function CheckGearsCollision(Gear: PGear): PGearArray;
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var mx, my, tr: LongInt;
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    i: Longword;
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begin
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CheckGearsCollision:= @ga;
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ga.Count:= 0;
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if Count = 0 then exit;
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mx:= hwRound(Gear^.X);
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my:= hwRound(Gear^.Y);
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tr:= Gear^.Radius + 2;
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for i:= 0 to Pred(Count) do
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    with cinfos[i] do
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        if (Gear <> cGear) and
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            (sqr(mx - x) + sqr(my - y) <= sqr(Radius + tr)) then
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                begin
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                ga.ar[ga.Count]:= cinfos[i].cGear;
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                inc(ga.Count)
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                end
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end;
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function TestCollisionXwithGear(Gear: PGear; Dir: LongInt): boolean;
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var x, y, i: LongInt;
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    TestWord: LongWord;
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begin
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if Gear^.IntersectGear <> nil then
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   with Gear^ do
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        if (hwRound(IntersectGear^.X) + IntersectGear^.Radius < hwRound(X) - Radius) or
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           (hwRound(IntersectGear^.X) - IntersectGear^.Radius > hwRound(X) + Radius) then
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   137
           begin
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           IntersectGear:= nil;
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           TestWord:= 0
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1faae19f2116 Remove tailing spaces in some places
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   140
           end else
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           TestWord:= 255
505
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   else TestWord:= 0;
838
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   143
351
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x:= hwRound(Gear^.X);
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if Dir < 0 then x:= x - Gear^.Radius
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           else x:= x + Gear^.Radius;
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if (x and LAND_WIDTH_MASK) = 0 then
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   148
   begin
351
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   149
   y:= hwRound(Gear^.Y) - Gear^.Radius + 1;
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   i:= y + Gear^.Radius * 2 - 2;
4
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   repeat
1753
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     if (y and LAND_HEIGHT_MASK) = 0 then
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        if Land[y, x] > TestWord then exit(true);
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     inc(y)
351
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   155
   until (y > i);
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   156
   end;
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TestCollisionXwithGear:= false
4
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   158
end;
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   159
6081
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function TestCollisionYwithGear(Gear: PGear; Dir: LongInt): Word;
505
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var x, y, i: LongInt;
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    TestWord: LongWord;
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begin
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if Gear^.IntersectGear <> nil then
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   with Gear^ do
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        if (hwRound(IntersectGear^.Y) + IntersectGear^.Radius < hwRound(Y) - Radius) or
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   167
           (hwRound(IntersectGear^.Y) - IntersectGear^.Radius > hwRound(Y) + Radius) then
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   168
           begin
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           IntersectGear:= nil;
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           TestWord:= 0
513
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   171
           end else
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           TestWord:= 255
505
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   else TestWord:= 0;
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y:= hwRound(Gear^.Y);
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if Dir < 0 then y:= y - Gear^.Radius
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           else y:= y + Gear^.Radius;
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if (y and LAND_HEIGHT_MASK) = 0 then
505
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   179
   begin
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   x:= hwRound(Gear^.X) - Gear^.Radius + 1;
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   i:= x + Gear^.Radius * 2 - 2;
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   182
   repeat
1753
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     if (x and LAND_WIDTH_MASK) = 0 then
6081
537bbd5c1a62 Basic test implementation of an ice flag. Allows for slick parts of terrain. Intended for ice gun, or "ice" mask on portions of land objects.
nemo
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        if Land[y, x] > TestWord then exit(Land[y, x]);
505
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     inc(x)
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   until (x > i);
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   end;
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TestCollisionYwithGear:= 0
505
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   189
end;
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function TestCollisionXKick(Gear: PGear; Dir: LongInt): boolean;
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var x, y, mx, my, i: LongInt;
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    flag: boolean;
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begin
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flag:= false;
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x:= hwRound(Gear^.X);
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   197
if Dir < 0 then x:= x - Gear^.Radius
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   198
           else x:= x + Gear^.Radius;
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   199
if (x and LAND_WIDTH_MASK) = 0 then
513
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   200
   begin
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   y:= hwRound(Gear^.Y) - Gear^.Radius + 1;
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   i:= y + Gear^.Radius * 2 - 2;
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   repeat
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   204
     if (y and LAND_HEIGHT_MASK) = 0 then
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31e449e1d9dd nemo's patch + ropes ammo scheme hack
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           if Land[y, x] > 255 then exit(true)
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33538aadb4e7 - Fix some stupid bugs in collisions detecting code
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           else if Land[y, x] <> 0 then flag:= true;
513
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     inc(y)
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   until (y > i);
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   209
   end;
538
74219eadab5e - Various small fixes
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   210
TestCollisionXKick:= flag;
513
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   211
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33538aadb4e7 - Fix some stupid bugs in collisions detecting code
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   212
if flag then
513
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   213
   begin
538
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   214
   if hwAbs(Gear^.dX) < cHHKick then exit;
967
8be3938d73c2 Don't let jumping hedgehog to move others
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   215
   if (Gear^.State and gstHHJumping <> 0)
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   216
   and (hwAbs(Gear^.dX) < _0_4) then exit;
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   217
513
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   mx:= hwRound(Gear^.X);
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   219
   my:= hwRound(Gear^.Y);
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diff changeset
   220
3608
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   221
   for i:= 0 to Pred(Count) do
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
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   222
    with cinfos[i] do
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
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   223
      if (Gear <> cGear) and
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
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   224
         (sqr(mx - x) + sqr(my - y) <= sqr(Radius + Gear^.Radius + 2)) and
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   225
         ((mx > x) xor (Dir > 0)) then
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   226
         if ((cGear^.Kind in [gtHedgehog, gtMine]) and ((Gear^.State and gstNotKickable) = 0)) or
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
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   227
            // only apply X kick if the barrel is knocked over
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
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   228
            ((cGear^.Kind = gtExplosives) and ((cGear^.State and gsttmpflag) <> 0)) then
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   229
             begin
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   230
             with cGear^ do
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   231
                  begin
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   232
                  dX:= Gear^.dX;
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   233
                  dY:= Gear^.dY * _0_5;
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   234
                  State:= State or gstMoving;
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   235
                  Active:= true
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   236
                  end;
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   237
             DeleteCI(cGear);
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   238
             exit(false)
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   239
             end
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   240
   end
513
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
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diff changeset
   241
end;
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
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diff changeset
   242
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
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diff changeset
   243
function TestCollisionYKick(Gear: PGear; Dir: LongInt): boolean;
3608
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   244
var x, y, mx, my, i: LongInt;
513
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
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diff changeset
   245
    flag: boolean;
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
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diff changeset
   246
begin
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
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diff changeset
   247
flag:= false;
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
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diff changeset
   248
y:= hwRound(Gear^.Y);
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
parents: 511
diff changeset
   249
if Dir < 0 then y:= y - Gear^.Radius
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
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parents: 511
diff changeset
   250
           else y:= y + Gear^.Radius;
1753
2ccba26f1aa4 Apply nemo's world resize patch
unc0rr
parents: 1528
diff changeset
   251
if (y and LAND_HEIGHT_MASK) = 0 then
513
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
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diff changeset
   252
   begin
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
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diff changeset
   253
   x:= hwRound(Gear^.X) - Gear^.Radius + 1;
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
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diff changeset
   254
   i:= x + Gear^.Radius * 2 - 2;
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
parents: 511
diff changeset
   255
   repeat
1753
2ccba26f1aa4 Apply nemo's world resize patch
unc0rr
parents: 1528
diff changeset
   256
     if (x and LAND_WIDTH_MASK) = 0 then
513
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
parents: 511
diff changeset
   257
        if Land[y, x] > 0 then
1966
31e449e1d9dd nemo's patch + ropes ammo scheme hack
unc0rr
parents: 1753
diff changeset
   258
           if Land[y, x] > 255 then exit(true)
536
33538aadb4e7 - Fix some stupid bugs in collisions detecting code
unc0rr
parents: 521
diff changeset
   259
           else if Land[y, x] <> 0 then flag:= true;
513
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
parents: 511
diff changeset
   260
     inc(x)
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
parents: 511
diff changeset
   261
   until (x > i);
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
parents: 511
diff changeset
   262
   end;
538
74219eadab5e - Various small fixes
unc0rr
parents: 536
diff changeset
   263
TestCollisionYKick:= flag;
513
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
parents: 511
diff changeset
   264
536
33538aadb4e7 - Fix some stupid bugs in collisions detecting code
unc0rr
parents: 521
diff changeset
   265
if flag then
513
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
parents: 511
diff changeset
   266
   begin
839
1493f697d1bb Fix broken logic for the new parachute feature
unc0rr
parents: 838
diff changeset
   267
   if hwAbs(Gear^.dY) < cHHKick then exit(true);
967
8be3938d73c2 Don't let jumping hedgehog to move others
unc0rr
parents: 906
diff changeset
   268
   if (Gear^.State and gstHHJumping <> 0)
8be3938d73c2 Don't let jumping hedgehog to move others
unc0rr
parents: 906
diff changeset
   269
   and (not Gear^.dY.isNegative)
8be3938d73c2 Don't let jumping hedgehog to move others
unc0rr
parents: 906
diff changeset
   270
   and (Gear^.dY < _0_4) then exit;
8be3938d73c2 Don't let jumping hedgehog to move others
unc0rr
parents: 906
diff changeset
   271
513
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
parents: 511
diff changeset
   272
   mx:= hwRound(Gear^.X);
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
parents: 511
diff changeset
   273
   my:= hwRound(Gear^.Y);
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
parents: 511
diff changeset
   274
3608
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   275
   for i:= 0 to Pred(Count) do
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   276
    with cinfos[i] do
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   277
      if (Gear <> cGear) and
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   278
         (sqr(mx - x) + sqr(my - y) <= sqr(Radius + Gear^.Radius + 2)) and
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   279
         ((my > y) xor (Dir > 0)) then
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   280
         if (cGear^.Kind in [gtHedgehog, gtMine, gtExplosives]) and ((Gear^.State and gstNotKickable) = 0) then
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   281
             begin
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   282
             with cGear^ do
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   283
                  begin
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   284
                  if (Kind <> gtExplosives) or ((State and gsttmpflag) <> 0) then dX:= Gear^.dX * _0_5;
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   285
                  dY:= Gear^.dY;
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   286
                  State:= State or gstMoving;
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   287
                  Active:= true
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   288
                  end;
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   289
             DeleteCI(cGear);
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   290
             exit(false)
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   291
             end
c509bbc779e7 Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
nemo
parents: 3603
diff changeset
   292
   end
513
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
parents: 511
diff changeset
   293
end;
69e06d710d46 Moving hedgehog could get another hedgehog moving forward
unc0rr
parents: 511
diff changeset
   294
5750
6bbf7aee2cdf Reenable a bunch of old portal play stuff, like dropping grenade into portal on hog, jumping through portal w/ hog on other end, collecting crate w/ portal etc. Also add cooldown to cake/portal interaction. It may still not do what you expect, but it probably shouldn't spin in place.
nemo
parents: 5572
diff changeset
   295
function TestCollisionXwithXYShift(Gear: PGear; ShiftX: hwFloat; ShiftY: LongInt; Dir: LongInt; withGear: boolean = true): boolean;
4
bcbd7adb4e4b - set svn:eol-style to native
unc0rr
parents: 1
diff changeset
   296
begin
351
29bc9c36ad5f Fixed-point arithmetics in engine.
unc0rr
parents: 183
diff changeset
   297
Gear^.X:= Gear^.X + ShiftX;
498
9c8b385dc9a1 - Get rid of operator := to have GPC support
unc0rr
parents: 393
diff changeset
   298
Gear^.Y:= Gear^.Y + int2hwFloat(ShiftY);
5750
6bbf7aee2cdf Reenable a bunch of old portal play stuff, like dropping grenade into portal on hog, jumping through portal w/ hog on other end, collecting crate w/ portal etc. Also add cooldown to cake/portal interaction. It may still not do what you expect, but it probably shouldn't spin in place.
nemo
parents: 5572
diff changeset
   299
if withGear then 
6bbf7aee2cdf Reenable a bunch of old portal play stuff, like dropping grenade into portal on hog, jumping through portal w/ hog on other end, collecting crate w/ portal etc. Also add cooldown to cake/portal interaction. It may still not do what you expect, but it probably shouldn't spin in place.
nemo
parents: 5572
diff changeset
   300
    TestCollisionXwithXYShift:= TestCollisionXwithGear(Gear, Dir)
6bbf7aee2cdf Reenable a bunch of old portal play stuff, like dropping grenade into portal on hog, jumping through portal w/ hog on other end, collecting crate w/ portal etc. Also add cooldown to cake/portal interaction. It may still not do what you expect, but it probably shouldn't spin in place.
nemo
parents: 5572
diff changeset
   301
else TestCollisionXwithXYShift:= TestCollisionX(Gear, Dir);
351
29bc9c36ad5f Fixed-point arithmetics in engine.
unc0rr
parents: 183
diff changeset
   302
Gear^.X:= Gear^.X - ShiftX;
498
9c8b385dc9a1 - Get rid of operator := to have GPC support
unc0rr
parents: 393
diff changeset
   303
Gear^.Y:= Gear^.Y - int2hwFloat(ShiftY)
4
bcbd7adb4e4b - set svn:eol-style to native
unc0rr
parents: 1
diff changeset
   304
end;
4798
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   305
function TestCollisionX(Gear: PGear; Dir: LongInt): boolean;
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   306
var x, y, i: LongInt;
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   307
begin
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   308
x:= hwRound(Gear^.X);
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   309
if Dir < 0 then x:= x - Gear^.Radius
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   310
           else x:= x + Gear^.Radius;
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   311
if (x and LAND_WIDTH_MASK) = 0 then
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   312
   begin
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   313
   y:= hwRound(Gear^.Y) - Gear^.Radius + 1;
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   314
   i:= y + Gear^.Radius * 2 - 2;
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   315
   repeat
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   316
     if (y and LAND_HEIGHT_MASK) = 0 then
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   317
        if Land[y, x] > 255 then exit(true);
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   318
     inc(y)
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   319
   until (y > i);
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   320
   end;
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   321
TestCollisionX:= false
84fb1ff0a1c0 fix sticky rope issue
sheepluva
parents: 4705
diff changeset
   322
end;
4
bcbd7adb4e4b - set svn:eol-style to native
unc0rr
parents: 1
diff changeset
   323
371
731ad6d27bd1 integer -> LongInt
unc0rr
parents: 351
diff changeset
   324
function TestCollisionY(Gear: PGear; Dir: LongInt): boolean;
731ad6d27bd1 integer -> LongInt
unc0rr
parents: 351
diff changeset
   325
var x, y, i: LongInt;
68
cbb93eb90304 Collision-related stuff
unc0rr
parents: 64
diff changeset
   326
begin
351
29bc9c36ad5f Fixed-point arithmetics in engine.
unc0rr
parents: 183
diff changeset
   327
y:= hwRound(Gear^.Y);
29bc9c36ad5f Fixed-point arithmetics in engine.
unc0rr
parents: 183
diff changeset
   328
if Dir < 0 then y:= y - Gear^.Radius
29bc9c36ad5f Fixed-point arithmetics in engine.
unc0rr
parents: 183
diff changeset
   329
           else y:= y + Gear^.Radius;
1753
2ccba26f1aa4 Apply nemo's world resize patch
unc0rr
parents: 1528
diff changeset
   330
if (y and LAND_HEIGHT_MASK) = 0 then
68
cbb93eb90304 Collision-related stuff
unc0rr
parents: 64
diff changeset
   331
   begin
351
29bc9c36ad5f Fixed-point arithmetics in engine.
unc0rr
parents: 183
diff changeset
   332
   x:= hwRound(Gear^.X) - Gear^.Radius + 1;
29bc9c36ad5f Fixed-point arithmetics in engine.
unc0rr
parents: 183
diff changeset
   333
   i:= x + Gear^.Radius * 2 - 2;
68
cbb93eb90304 Collision-related stuff
unc0rr
parents: 64
diff changeset
   334
   repeat
1753
2ccba26f1aa4 Apply nemo's world resize patch
unc0rr
parents: 1528
diff changeset
   335
     if (x and LAND_WIDTH_MASK) = 0 then
1966
31e449e1d9dd nemo's patch + ropes ammo scheme hack
unc0rr
parents: 1753
diff changeset
   336
        if Land[y, x] > 255 then exit(true);
68
cbb93eb90304 Collision-related stuff
unc0rr
parents: 64
diff changeset
   337
     inc(x)
351
29bc9c36ad5f Fixed-point arithmetics in engine.
unc0rr
parents: 183
diff changeset
   338
   until (x > i);
29bc9c36ad5f Fixed-point arithmetics in engine.
unc0rr
parents: 183
diff changeset
   339
   end;
29bc9c36ad5f Fixed-point arithmetics in engine.
unc0rr
parents: 183
diff changeset
   340
TestCollisionY:= false
68
cbb93eb90304 Collision-related stuff
unc0rr
parents: 64
diff changeset
   341
end;
cbb93eb90304 Collision-related stuff
unc0rr
parents: 64
diff changeset
   342
5750
6bbf7aee2cdf Reenable a bunch of old portal play stuff, like dropping grenade into portal on hog, jumping through portal w/ hog on other end, collecting crate w/ portal etc. Also add cooldown to cake/portal interaction. It may still not do what you expect, but it probably shouldn't spin in place.
nemo
parents: 5572
diff changeset
   343
function TestCollisionYwithXYShift(Gear: PGear; ShiftX, ShiftY: LongInt; Dir: LongInt; withGear: boolean = true): boolean;
4
bcbd7adb4e4b - set svn:eol-style to native
unc0rr
parents: 1
diff changeset
   344
begin
498
9c8b385dc9a1 - Get rid of operator := to have GPC support
unc0rr
parents: 393
diff changeset
   345
Gear^.X:= Gear^.X + int2hwFloat(ShiftX);
9c8b385dc9a1 - Get rid of operator := to have GPC support
unc0rr
parents: 393
diff changeset
   346
Gear^.Y:= Gear^.Y + int2hwFloat(ShiftY);
6081
537bbd5c1a62 Basic test implementation of an ice flag. Allows for slick parts of terrain. Intended for ice gun, or "ice" mask on portions of land objects.
nemo
parents: 5919
diff changeset
   347
if withGear then TestCollisionYwithXYShift:= TestCollisionYwithGear(Gear, Dir) <> 0
5750
6bbf7aee2cdf Reenable a bunch of old portal play stuff, like dropping grenade into portal on hog, jumping through portal w/ hog on other end, collecting crate w/ portal etc. Also add cooldown to cake/portal interaction. It may still not do what you expect, but it probably shouldn't spin in place.
nemo
parents: 5572
diff changeset
   348
else TestCollisionYwithXYShift:= TestCollisionY(Gear, Dir);
498
9c8b385dc9a1 - Get rid of operator := to have GPC support
unc0rr
parents: 393
diff changeset
   349
Gear^.X:= Gear^.X - int2hwFloat(ShiftX);
9c8b385dc9a1 - Get rid of operator := to have GPC support
unc0rr
parents: 393
diff changeset
   350
Gear^.Y:= Gear^.Y - int2hwFloat(ShiftY)
4
bcbd7adb4e4b - set svn:eol-style to native
unc0rr
parents: 1
diff changeset
   351
end;
bcbd7adb4e4b - set svn:eol-style to native
unc0rr
parents: 1
diff changeset
   352
5896
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   353
function TestRectancleForObstacle(x1, y1, x2, y2: LongInt; landOnly: boolean): boolean;
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   354
var x, y: LongInt;
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   355
    TestWord: LongWord;
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   356
begin
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   357
if landOnly then
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   358
    TestWord:= 255
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   359
else
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   360
    TestWord:= 0;
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   361
5896
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   362
if x1 > x2 then
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   363
begin
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   364
    x  := x1;
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   365
    x1 := x2;
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   366
    x2 := x;
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   367
end;
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   368
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   369
if y1 > y2 then
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   370
begin
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   371
    y  := y1;
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   372
    y1 := y2;
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   373
    y2 := y;
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   374
end;
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   375
5919
f737843dd331 TestRectForObstacle: areas outside map borders are not passable
sheepluva
parents: 5896
diff changeset
   376
if (hasBorder and ((y1 < 0) or (x1 < 0) or (x2 > LAND_WIDTH))) then
f737843dd331 TestRectForObstacle: areas outside map borders are not passable
sheepluva
parents: 5896
diff changeset
   377
    exit(true);
f737843dd331 TestRectForObstacle: areas outside map borders are not passable
sheepluva
parents: 5896
diff changeset
   378
5896
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   379
for y := y1 to y2 do
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   380
    for x := x1 to x2 do
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   381
        if ((y and LAND_HEIGHT_MASK) = 0) and ((x and LAND_WIDTH_MASK) = 0)
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   382
          and (Land[y, x] > TestWord) then
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   383
            exit(true);
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   384
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   385
TestRectancleForObstacle:= false
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   386
end;
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   387
9ce1cf4e5a32 lua: boolean TestRectForObstacle(x1, y1, x2, y2, landOnly)
sheepluva
parents: 5834
diff changeset
   388
function CalcSlopeTangent(Gear: PGear; collisionX, collisionY: LongInt; var outDeltaX, outDeltaY: LongInt; TestWord: LongWord): boolean;
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   389
var ldx, ldy, rdx, rdy: LongInt;
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   390
    i, j, mx, my, li, ri, jfr, jto, tmpo : ShortInt;
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   391
    tmpx, tmpy: LongWord;
3569
27b0ec683572 portal / slope detection:
sheepluva
parents: 3474
diff changeset
   392
    dx, dy, s: hwFloat;
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   393
    offset: Array[0..7,0..1] of ShortInt;
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   394
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   395
begin
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   396
    dx:= Gear^.dX;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   397
    dy:= Gear^.dY;
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   398
3569
27b0ec683572 portal / slope detection:
sheepluva
parents: 3474
diff changeset
   399
    // we start searching from the direction the gear came from
27b0ec683572 portal / slope detection:
sheepluva
parents: 3474
diff changeset
   400
    if (dx.QWordValue > _0_995.QWordValue )
27b0ec683572 portal / slope detection:
sheepluva
parents: 3474
diff changeset
   401
    or (dy.QWordValue > _0_995.QWordValue ) then
27b0ec683572 portal / slope detection:
sheepluva
parents: 3474
diff changeset
   402
        begin // scale
27b0ec683572 portal / slope detection:
sheepluva
parents: 3474
diff changeset
   403
        s := _1 / Distance(dx,dy);
27b0ec683572 portal / slope detection:
sheepluva
parents: 3474
diff changeset
   404
        dx := s * dx;
27b0ec683572 portal / slope detection:
sheepluva
parents: 3474
diff changeset
   405
        dy := s * dy;
27b0ec683572 portal / slope detection:
sheepluva
parents: 3474
diff changeset
   406
        end;
27b0ec683572 portal / slope detection:
sheepluva
parents: 3474
diff changeset
   407
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   408
    mx:= hwRound(Gear^.X-dx) - hwRound(Gear^.X);
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   409
    my:= hwRound(Gear^.Y-dy) - hwRound(Gear^.Y);
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   410
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   411
    li:= -1;
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   412
    ri:= -1;
3569
27b0ec683572 portal / slope detection:
sheepluva
parents: 3474
diff changeset
   413
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   414
    // go around collision pixel, checking for first/last collisions
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   415
    // this will determinate what angles will be tried to crawl along
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   416
    for i:= 0 to 7 do
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   417
        begin
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   418
        offset[i,0]:= mx;
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   419
        offset[i,1]:= my;
3569
27b0ec683572 portal / slope detection:
sheepluva
parents: 3474
diff changeset
   420
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   421
        tmpx:= collisionX + mx;
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   422
        tmpy:= collisionY + my;
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   423
3569
27b0ec683572 portal / slope detection:
sheepluva
parents: 3474
diff changeset
   424
        if (((tmpy) and LAND_HEIGHT_MASK) = 0) and (((tmpx) and LAND_WIDTH_MASK) = 0) then
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   425
            if (Land[tmpy,tmpx] > TestWord) then
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   426
                begin
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   427
                // remember the index belonging to the first and last collision (if in 1st half)
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   428
                if (i <> 0) then
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   429
                    begin
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   430
                    if (ri = -1) then
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   431
                        ri:= i
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   432
                    else
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   433
                        li:= i;
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   434
                    end;
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   435
                end;
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   436
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   437
        if i = 7 then break;
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   438
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   439
        // prepare offset for next check (clockwise)
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   440
        if (mx = -1) and (my <> -1) then my:= my - 1
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   441
        else if (my = -1) and (mx <> 1) then mx:= mx + 1
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   442
        else if (mx = 1) and (my <> 1) then my:= my + 1
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   443
        else mx:= mx - 1;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   444
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   445
        end;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   446
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   447
    ldx:= collisionX;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   448
    ldy:= collisionY;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   449
    rdx:= collisionX;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   450
    rdy:= collisionY;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   451
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   452
    // edge-crawl
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   453
    for i:= 0 to 8 do
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   454
        begin
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   455
        // using mx,my as temporary value buffer here
3697
d5b30d6373fc remove trailing spaces from end of line
koda
parents: 3609
diff changeset
   456
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   457
        jfr:= 8+li+1;
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   458
        jto:= 8+li-1;
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   459
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   460
        for j:= jfr downto jto do
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   461
            begin
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   462
            tmpo:= j mod 8;
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   463
            tmpx:= ldx + offset[tmpo,0];
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   464
            tmpy:= ldy + offset[tmpo,1];
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   465
            if (((tmpy) and LAND_HEIGHT_MASK) = 0) and (((tmpx) and LAND_WIDTH_MASK)  = 0)
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   466
                and (Land[tmpy,tmpx] > TestWord) then
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   467
                    begin
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   468
                    ldx:= tmpx;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   469
                    ldy:= tmpy;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   470
                    break;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   471
                    end;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   472
            end;
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   473
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   474
        jfr:= 8+ri-1;
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   475
        jto:= 8+ri+1;
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   476
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   477
        for j:= jfr to jto do
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   478
            begin
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   479
            tmpo:= j mod 8;
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   480
            tmpx:= rdx + offset[tmpo,0];
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   481
            tmpy:= rdy + offset[tmpo,1];
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   482
            if (((tmpy) and LAND_HEIGHT_MASK) = 0) and (((tmpx) and LAND_WIDTH_MASK)  = 0)
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   483
                and (Land[tmpy,tmpx] > TestWord) then
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   484
                    begin
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   485
                    rdx:= tmpx;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   486
                    rdy:= tmpy;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   487
                    break;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   488
                    end;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   489
            end;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   490
        end;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   491
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   492
    ldx:= rdx - ldx;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   493
    ldy:= rdy - ldy;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   494
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   495
    if ((ldx = 0) and (ldy = 0)) then EXIT(false);
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   496
3414
b2f3bb44777e some portal changes, warning: no loop prevention yet, note: entry angle not preserved yet
sheepluva
parents: 3411
diff changeset
   497
outDeltaX:= ldx;
b2f3bb44777e some portal changes, warning: no loop prevention yet, note: entry angle not preserved yet
sheepluva
parents: 3411
diff changeset
   498
outDeltaY:= ldy;
3408
56e636b83cb4 tweak land angle detection/portal a bit
sheepluva
parents: 3407
diff changeset
   499
exit(true);
3401
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   500
end;
d5d31d16eccc add a part of my landslide vector collision and use if for the portal gun DirAngle, not flawless yet
sheepluva
parents: 3236
diff changeset
   501
3038
4e48c276a468 In pascal unit is a namespace
unc0rr
parents: 2948
diff changeset
   502
procedure initModule;
2716
b9ca1bfca24f complete the replacement of init/free wrappers for every unit
koda
parents: 2630
diff changeset
   503
begin
2948
3f21a9dc93d0 Replace tabs with spaces using 'expand -t 4' command
unc0rr
parents: 2716
diff changeset
   504
    Count:= 0;
2716
b9ca1bfca24f complete the replacement of init/free wrappers for every unit
koda
parents: 2630
diff changeset
   505
end;
b9ca1bfca24f complete the replacement of init/free wrappers for every unit
koda
parents: 2630
diff changeset
   506
3038
4e48c276a468 In pascal unit is a namespace
unc0rr
parents: 2948
diff changeset
   507
procedure freeModule;
2716
b9ca1bfca24f complete the replacement of init/free wrappers for every unit
koda
parents: 2630
diff changeset
   508
begin
b9ca1bfca24f complete the replacement of init/free wrappers for every unit
koda
parents: 2630
diff changeset
   509
b9ca1bfca24f complete the replacement of init/free wrappers for every unit
koda
parents: 2630
diff changeset
   510
end;
b9ca1bfca24f complete the replacement of init/free wrappers for every unit
koda
parents: 2630
diff changeset
   511
4
bcbd7adb4e4b - set svn:eol-style to native
unc0rr
parents: 1
diff changeset
   512
end.