--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hedgewars/uGears.pas Mon Aug 22 13:35:41 2005 +0000
@@ -0,0 +1,508 @@
+(*
+ * Hedgewars, a worms-like game
+ * Copyright (c) 2004, 2005 Andrey Korotaev <unC0Rr@gmail.com>
+ *
+ * Distributed under the terms of the BSD-modified licence:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * with the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *)
+
+unit uGears;
+interface
+uses SDLh, uConsts;
+{$INCLUDE options.inc}
+const AllInactive: boolean = false;
+
+type PGear = ^TGear;
+ TGearStepProcedure = procedure (Gear: PGear);
+ TGear = record
+ NextGear, PrevGear: PGear;
+ Active: Boolean;
+ State : Cardinal;
+ X : Real;
+ Y : Real;
+ dX: Real;
+ dY: Real;
+ Kind : TGearType;
+ doStep: TGearStepProcedure;
+ HalfWidth, HalfHeight: integer;
+ Angle, Power : Cardinal;
+ DirAngle: real;
+ Timer : LongWord;
+ Elasticity: Real;
+ Friction : Real;
+ Message : Longword;
+ Hedgehog: pointer;
+ Health, Damage: LongWord;
+ CollIndex: Longword;
+ Tag: Longword;
+ end;
+
+function AddGear(X, Y: integer; Kind: TGearType; State: Cardinal; const dX: real=0.0; dY: real=0.0; Timer: LongWord=0): PGear;
+procedure ProcessGears;
+procedure SetAllToActive;
+procedure SetAllHHToActive;
+procedure DrawGears(Surface: PSDL_Surface);
+procedure FreeGearsList;
+procedure InitGears;
+procedure AssignHHCoords;
+
+var CurAmmoGear: PGear = nil;
+
+implementation
+uses uWorld, uMisc, uStore, uConsole, uSound, uTeams, uRandom, uCollisions, uLand;
+var GearsList: PGear = nil;
+ RopePoints: record
+ Count: Longword;
+ HookAngle: integer;
+ ar: array[0..300] of record
+ X, Y: real;
+ dLen: real;
+ b: boolean;
+ end;
+ end;
+
+procedure DeleteGear(Gear: PGear); forward;
+procedure doMakeExplosion(X, Y, Radius: integer; Mask: LongWord); forward;
+
+{$INCLUDE GSHandlers.inc}
+{$INCLUDE HHHandlers.inc}
+
+const doStepHandlers: array[TGearType] of TGearStepProcedure = (
+ doStepCloud,
+ doStepBomb,
+ doStepHedgehog,
+ doStepGrenade,
+ doStepHealthTag,
+ doStepGrave,
+ doStepUFO,
+ doStepShotgunShot,
+ doStepActionTimer,
+ doStepPickHammer,
+ doStepRope,
+ doStepSmokeTrace
+ );
+
+function AddGear(X, Y: integer; Kind: TGearType; State: Cardinal; const dX: real=0.0; dY: real=0.0; Timer: LongWord=0): PGear;
+begin
+{$IFDEF DEBUGFILE}AddFileLog('AddGear: ('+inttostr(x)+','+inttostr(y)+')');{$ENDIF}
+New(Result);
+{$IFDEF DEBUGFILE}AddFileLog('AddGear: handle = '+inttostr(integer(Result)));{$ENDIF}
+FillChar(Result^, sizeof(TGear), 0);
+Result.X:= X;
+Result.Y:= Y;
+Result.Kind := Kind;
+Result.State:= State;
+Result.Active:= true;
+Result.dX:= dX;
+Result.dY:= dY;
+Result.doStep:= doStepHandlers[Kind];
+Result.CollIndex:= High(Longword);
+if CurrentTeam <> nil then
+ Result.Hedgehog:= @CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog];
+case Kind of
+ gtAmmo_Bomb: begin
+ Result.HalfWidth:= 4;
+ Result.HalfHeight:= 4;
+ Result.Elasticity:= 0.6;
+ Result.Friction:= 0.995;
+ Result.Timer:= Timer
+ end;
+ gtHedgehog: begin
+ Result.HalfWidth:= 6;
+ Result.HalfHeight:= cHHHalfHeight;
+ Result.Elasticity:= 0.002;
+ Result.Friction:= 0.999;
+ end;
+gtAmmo_Grenade: begin
+ Result.HalfWidth:= 4;
+ Result.HalfHeight:= 4;
+ end;
+ gtHealthTag: begin
+ Result.Timer:= 1500;
+ end;
+ gtGrave: begin
+ Result.HalfWidth:= 10;
+ Result.HalfHeight:= 10;
+ Result.Elasticity:= 0.6;
+ end;
+ gtUFO: begin
+ Result.HalfWidth:= 5;
+ Result.HalfHeight:= 2;
+ Result.Timer:= 500;
+ Result.Elasticity:= 0.9
+ end;
+ gtShotgunShot: begin
+ Result.Timer:= 900;
+ Result.HalfWidth:= 2;
+ Result.HalfHeight:= 2
+ end;
+ gtActionTimer: begin
+ Result.Timer:= Timer
+ end;
+ gtPickHammer: begin
+ Result.HalfWidth:= 10;
+ Result.HalfHeight:= 2;
+ Result.Timer:= 4000
+ end;
+ gtSmokeTrace: begin
+ Result.Tag:= 8
+ end;
+ gtRope: begin
+ Result.HalfWidth:= 3;
+ Result.HalfHeight:= 3;
+ Result.Friction:= 500;
+ RopePoints.Count:= 0;
+ end;
+ end;
+if GearsList = nil then GearsList:= Result
+ else begin
+ GearsList.PrevGear:= Result;
+ Result.NextGear:= GearsList;
+ GearsList:= Result
+ end
+end;
+
+procedure DeleteGear(Gear: PGear);
+begin
+if Gear.CollIndex < High(Longword) then DeleteCR(Gear);
+if Gear.Kind = gtHedgehog then
+ if CurAmmoGear <> nil then
+ begin
+ {$IFDEF DEBUGFILE}AddFileLog('DeleteGear: Sending gm_Destroy, hh handle = '+inttostr(integer(Gear)));{$ENDIF}
+ Gear.Message:= gm_Destroy;
+ CurAmmoGear.Message:= gm_Destroy;
+ exit
+ end else PHedgehog(Gear.Hedgehog).Gear:= nil;
+if CurAmmoGear = Gear then
+ CurAmmoGear:= nil;
+if FollowGear = Gear then FollowGear:= nil;
+{$IFDEF DEBUGFILE}AddFileLog('DeleteGear: handle = '+inttostr(integer(Gear)));{$ENDIF}
+if Gear.NextGear <> nil then Gear.NextGear.PrevGear:= Gear.PrevGear;
+if Gear.PrevGear <> nil then Gear.PrevGear.NextGear:= Gear.NextGear
+ else begin
+ GearsList:= Gear^.NextGear;
+ if GearsList <> nil then GearsList.PrevGear:= nil
+ end;
+Dispose(Gear)
+end;
+
+function CheckNoDamage: boolean; // returns TRUE in case of no damaged hhs
+var Gear: PGear;
+begin
+Result:= true;
+Gear:= GearsList;
+while Gear <> nil do
+ begin
+ if Gear.Kind = gtHedgehog then
+ if Gear.Damage <> 0 then
+ begin
+ Result:= false;
+ if Gear.Health < Gear.Damage then Gear.Health:= 0
+ else dec(Gear.Health, Gear.Damage);
+ AddGear(Round(Gear.X), Round(Gear.Y) - 32, gtHealthTag, Gear.Damage).Hedgehog:= Gear.Hedgehog;
+ RenderHealth(PHedgehog(Gear.Hedgehog)^);
+
+ Gear.Damage:= 0
+ end;
+ Gear:= Gear.NextGear
+ end;
+end;
+
+procedure ProcessGears;
+const delay: integer = cInactDelay;
+var Gear, t: PGear;
+{$IFDEF COUNTTICKS}
+ tickcntA, tickcntB: LongWord;
+const cntSecTicks: LongWord = 0;
+{$ENDIF}
+begin
+{$IFDEF COUNTTICKS}
+asm
+ push eax
+ push edx
+ rdtsc
+ mov tickcntA, eax
+ mov tickcntB, edx
+ pop edx
+ pop eax
+end;
+{$ENDIF}
+AllInactive:= true;
+t:= GearsList;
+while t<>nil do
+ begin
+ Gear:= t;
+ t:= Gear.NextGear;
+ if Gear.Active then Gear.doStep(Gear);
+ end;
+if AllInactive then
+ if (delay > 0)and not isInMultiShoot then
+ begin
+ if delay = cInactDelay then SetAllToActive;
+ dec(delay)
+ end
+ else begin
+ delay:= cInactDelay;
+ if CheckNoDamage then
+ if isInMultiShoot then isInMultiShoot:= false
+ else ParseCommand('/nextturn');
+ end;
+if TurnTimeLeft > 0 then
+ if CurrentTeam <> nil then
+ if CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog].Gear <> nil then
+ if ((CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog].Gear.State and gstAttacking) = 0)
+ and not isInMultiShoot then dec(TurnTimeLeft);
+inc(GameTicks);
+{$IFDEF COUNTTICKS}
+asm
+ push eax
+ push edx
+ rdtsc
+ sub eax, [tickcntA]
+ sbb edx, [tickcntB]
+ add [cntSecTicks], eax
+ pop edx
+ pop eax
+end;
+if (GameTicks and 1023) = 0 then
+ begin
+ cntTicks:= cntSecTicks shr 10;
+ {$IFDEF DEBUGFILE}
+ AddFileLog('<' + inttostr(cntTicks) + '>x1024 ticks');
+ {$ENDIF}
+ cntSecTicks:= 0
+ end;
+{$ENDIF}
+end;
+
+procedure SetAllToActive;
+var t: PGear;
+begin
+AllInactive:= false;
+t:= GearsList;
+while t<>nil do
+ begin
+ t.Active:= true;
+ t:= t.NextGear
+ end
+end;
+
+procedure SetAllHHToActive;
+var t: PGear;
+begin
+AllInactive:= false;
+t:= GearsList;
+while t<>nil do
+ begin
+ if t.Kind = gtHedgehog then t.Active:= true;
+ t:= t.NextGear
+ end
+end;
+
+procedure DrawGears(Surface: PSDL_Surface);
+var Gear: PGear;
+ i: Longword;
+
+ procedure DrawRopeLine(X1, Y1, X2, Y2: integer);
+ var i: integer;
+ t, k: real;
+ r: TSDL_Rect;
+ begin
+ if abs(X1 - X2) > abs(Y1 - Y2) then
+ begin
+ if X1 > X2 then
+ begin
+ i:= X1;
+ X1:= X2;
+ X2:= i;
+ i:= Y1;
+ Y1:= Y2;
+ Y2:= i
+ end;
+ k:= (Y2 - Y1) / (X2 - X1);
+ if X1 < 0 then
+ begin
+ t:= Y1 - 2 - k * X1;
+ X1:= 0
+ end else t:= Y1 - 2;
+ if X2 > cScreenWidth then X2:= cScreenWidth;
+ r.x:= X1;
+ while r.x <= X2 do
+ begin
+ r.y:= round(t);
+ r.w:= 4;
+ r.h:= 4;
+ SDL_FillRect(Surface, @r, cWhiteColor);
+ t:= t + k*3;
+ inc(r.x, 3)
+ end;
+ end else
+ begin
+ if Y1 > Y2 then
+ begin
+ i:= X1;
+ X1:= X2;
+ X2:= i;
+ i:= Y1;
+ Y1:= Y2;
+ Y2:= i
+ end;
+ k:= (X2 - X1) / (Y2 - Y1);
+ if Y1 < 0 then
+ begin
+ t:= X1 - 2 - k * Y1;
+ Y1:= 0
+ end else t:= X1 - 2;
+ if Y2 > cScreenHeight then Y2:= cScreenHeight;
+ r.y:= Y1;
+ while r.y <= Y2 do
+ begin
+ r.x:= round(t);
+ r.w:= 4;
+ r.h:= 4;
+ SDL_FillRect(Surface, @r, cWhiteColor);
+ t:= t + k*3;
+ inc(r.y, 3)
+ end;
+ end
+ end;
+
+begin
+Gear:= GearsList;
+while Gear<>nil do
+ begin
+ case Gear.Kind of
+ gtCloud: DrawSprite(sprCloud , Round(Gear.X) + WorldDx, Round(Gear.Y) + WorldDy, Gear.State, Surface);
+ gtAmmo_Bomb: DrawSprite(sprBomb , Round(Gear.X) - 8 + WorldDx, Round(Gear.Y) - 8 + WorldDy, trunc(Gear.DirAngle), Surface);
+ gtHedgehog: DrawHedgehog(Round(Gear.X) - 14 + WorldDx, Round(Gear.Y) - 18 + WorldDy, Sign(Gear.dX),
+ 0, PHedgehog(Gear.Hedgehog).visStepPos div 2,
+ Surface);
+ gtAmmo_Grenade: DrawSprite(sprGrenade , Round(Gear.X) - 16 + WorldDx, Round(Gear.Y) - 16 + WorldDy, DxDy2Angle32(Gear.dY, Gear.dX), Surface);
+ gtHealthTag: DrawCaption(Round(Gear.X) + WorldDx, Round(Gear.Y) + WorldDy, PHedgehog(Gear.Hedgehog).HealthTagRect, Surface, true);
+ gtGrave: DrawSpriteFromRect(PHedgehog(Gear.Hedgehog).Team.GraveRect, Round(Gear.X) + WorldDx - 16, Round(Gear.Y) + WorldDy - 16, 32, (GameTicks shr 7) and 7, Surface);
+ gtUFO: DrawSprite(sprUFO, Round(Gear.X) - 16 + WorldDx, Round(Gear.Y) - 16 + WorldDy, (GameTicks shr 7) mod 4, Surface);
+ gtSmokeTrace: if Gear.Tag < 8 then DrawSprite(sprSmokeTrace, Round(Gear.X) - 16 + WorldDx, Round(Gear.Y) - 16 + WorldDy, Gear.Tag, Surface);
+ gtRope: begin
+ DrawRopeLine(Round(Gear.X) + WorldDx, Round(Gear.Y) + WorldDy,
+ Round(PHedgehog(Gear.Hedgehog).Gear.X) + WorldDx, Round(PHedgehog(Gear.Hedgehog).Gear.Y) + WorldDy);
+ if RopePoints.Count > 0 then
+ begin
+ i:= 0;
+ while i < Pred(RopePoints.Count) do
+ begin
+ DrawRopeLine(Round(RopePoints.ar[i].X) + WorldDx, Round(RopePoints.ar[i].Y) + WorldDy,
+ Round(RopePoints.ar[Succ(i)].X) + WorldDx, Round(RopePoints.ar[Succ(i)].Y) + WorldDy);
+ inc(i)
+ end;
+ DrawRopeLine(Round(RopePoints.ar[i].X) + WorldDx, Round(RopePoints.ar[i].Y) + WorldDy,
+ Round(Gear.X) + WorldDx, Round(Gear.Y) + WorldDy);
+ DrawSprite(sprRopeHook, Round(RopePoints.ar[0].X) + WorldDx - 16, Round(RopePoints.ar[0].Y) + WorldDy - 16, RopePoints.HookAngle, Surface);
+ end else
+ DrawSprite(sprRopeHook, Round(Gear.X) - 16 + WorldDx, Round(Gear.Y) - 16 + WorldDy, DxDy2Angle32(Gear.dY, Gear.dX), Surface);
+ end;
+ end;
+ Gear:= Gear.NextGear
+ end;
+end;
+
+procedure FreeGearsList;
+var t, tt: PGear;
+begin
+tt:= GearsList;
+GearsList:= nil;
+while tt<>nil do
+ begin
+ t:= tt;
+ tt:= tt.NextGear;
+ try
+ Dispose(t)
+ except OutError(errmsgDynamicVar) end;
+ end;
+end;
+
+procedure InitGears;
+var i: integer;
+begin
+for i:= 0 to cCloudsNumber do AddGear( - cScreenWidth + i * ((cScreenWidth * 2 + 2304) div cCloudsNumber), -128, gtCloud, random(4), (0.5-random)*0.01);
+AddGear(0, 0, gtActionTimer, gtsStartGame, 0, 0, 2000).Health:= 3;
+end;
+
+procedure doMakeExplosion(X, Y, Radius: integer; Mask: LongWord);
+var Gear: PGear;
+ dmg: integer;
+begin
+TargetPoint.X:= NoPointX;
+{$IFDEF DEBUGFILE}if Radius > 3 then AddFileLog('Explosion: at (' + inttostr(x) + ',' + inttostr(y) + ')');{$ENDIF}
+DrawExplosion(X, Y, Radius);
+if (Mask and EXPLAutoSound)<>0 then PlaySound(sndExplosion);
+if (Mask and EXPLNoDamage)<>0 then exit;
+if (Mask and EXPLAllDamageInRadius)=0 then Radius:= Radius shl 1;
+Gear:= GearsList;
+while Gear <> nil do
+ begin
+ dmg:= Radius - Round(sqrt(sqr(Gear.X - X) + sqr(Gear.Y - Y)));
+ if dmg > 0 then
+ begin
+ dmg:= dmg shr 1;
+ case Gear.Kind of
+ gtHedgehog: begin
+ inc(Gear.Damage, dmg);
+ Gear.dX:= Gear.dX + dmg / 200 * sign(Gear.X - X);
+ Gear.dY:= Gear.dY + dmg / 200 * sign(Gear.Y - Y);
+ FollowGear:= Gear
+ end;
+ gtGrave: Gear.dY:= - dmg / 250;
+ end;
+ end;
+ Gear:= Gear.NextGear
+ end
+end;
+
+procedure AssignHHCoords;
+var Gear: PGear;
+ pX, pY: integer;
+begin
+Gear:= GearsList;
+while Gear <> nil do
+ begin
+ if Gear.Kind = gtHedgehog then
+ begin
+ GetHHPoint(pX, pY);
+ Gear.X:= pX;
+ Gear.Y:= pY
+ end;
+ Gear:= Gear.NextGear
+ end
+end;
+
+initialization
+
+finalization
+FreeGearsList
+
+end.