(*
* Hedgewars, a free turn based strategy game
* Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*)
{$INCLUDE "options.inc"}
unit uGearsUtils;
interface
uses uTypes, math;
procedure doMakeExplosion(X, Y, Radius: LongInt; AttackingHog: PHedgehog; Mask: Longword; const Tint: LongWord = $FFFFFFFF);
function ModifyDamage(dmg: Longword; Gear: PGear): Longword;
procedure ApplyDamage(Gear: PGear; AttackerHog: PHedgehog; Damage: Longword; Source: TDamageSource);
procedure spawnHealthTagForHH(HHGear: PGear; dmg: Longword);
procedure HHHurt(Hedgehog: PHedgehog; Source: TDamageSource);
procedure CheckHHDamage(Gear: PGear);
procedure CalcRotationDirAngle(Gear: PGear);
procedure ResurrectHedgehog(gear: PGear);
procedure FindPlace(var Gear: PGear; withFall: boolean; Left, Right: LongInt; skipProximity: boolean = false);
function CheckGearNear(Gear: PGear; Kind: TGearType; rX, rY: LongInt): PGear;
function CheckGearsNear(mX, mY: LongInt; Kind: TGearsType; rX, rY: LongInt): PGear;
function CheckGearDrowning(Gear: PGear): boolean;
var doStepHandlers: array[TGearType] of TGearStepProcedure;
implementation
uses uFloat, uSound, uCollisions, uUtils, uConsts, uVisualGears, uAIMisc,
uVariables, uLandGraphics, uScript, uStats, uCaptions, uTeams, uStore,
uLocale, uTextures, uRenderUtils, uRandom, SDLh, uDebug, uGears,
uGearsList;
procedure doMakeExplosion(X, Y, Radius: LongInt; AttackingHog: PHedgehog; Mask: Longword; const Tint: LongWord);
var Gear: PGear;
dmg, dmgBase: LongInt;
fX, fY, tdX, tdY: hwFloat;
vg: PVisualGear;
i, cnt: LongInt;
begin
if Radius > 4 then AddFileLog('Explosion: at (' + inttostr(x) + ',' + inttostr(y) + ')');
if Radius > 25 then KickFlakes(Radius, X, Y);
if ((Mask and EXPLNoGfx) = 0) then
begin
vg:= nil;
if Radius > 50 then vg:= AddVisualGear(X, Y, vgtBigExplosion)
else if Radius > 10 then vg:= AddVisualGear(X, Y, vgtExplosion);
if vg <> nil then
vg^.Tint:= Tint;
end;
if (Mask and EXPLAutoSound) <> 0 then PlaySound(sndExplosion);
(*if (Mask and EXPLAllDamageInRadius) = 0 then
dmgRadius:= Radius shl 1
else
dmgRadius:= Radius;
dmgBase:= dmgRadius + cHHRadius div 2;*)
dmgBase:= Radius shl 1 + cHHRadius div 2;
fX:= int2hwFloat(X);
fY:= int2hwFloat(Y);
Gear:= GearsList;
while Gear <> nil do
begin
dmg:= 0;
//dmg:= dmgRadius + cHHRadius div 2 - hwRound(Distance(Gear^.X - int2hwFloat(X), Gear^.Y - int2hwFloat(Y)));
//if (dmg > 1) and
if (Gear^.State and gstNoDamage) = 0 then
begin
case Gear^.Kind of
gtHedgehog,
gtMine,
gtBall,
gtMelonPiece,
gtGrenade,
gtClusterBomb,
// gtCluster, too game breaking I think
gtSMine,
gtCase,
gtTarget,
gtFlame,
gtExplosives,
gtStructure: begin
// Run the calcs only once we know we have a type that will need damage
tdX:= Gear^.X-fX;
tdY:= Gear^.Y-fY;
if hwRound(hwAbs(tdX)+hwAbs(tdY)) < dmgBase then
dmg:= dmgBase - max(hwRound(Distance(tdX, tdY)),Gear^.Radius);
if dmg > 1 then
begin
dmg:= ModifyDamage(min(dmg div 2, Radius), Gear);
//AddFileLog('Damage: ' + inttostr(dmg));
if (Mask and EXPLNoDamage) = 0 then
begin
if not Gear^.Invulnerable then
ApplyDamage(Gear, AttackingHog, dmg, dsExplosion)
else
Gear^.State:= Gear^.State or gstWinner;
end;
if ((Mask and EXPLDoNotTouchAny) = 0) and (((Mask and EXPLDoNotTouchHH) = 0) or (Gear^.Kind <> gtHedgehog)) then
begin
DeleteCI(Gear);
Gear^.dX:= Gear^.dX + SignAs(_0_005 * dmg + cHHKick, tdX)/(Gear^.Density/_3);
Gear^.dY:= Gear^.dY + SignAs(_0_005 * dmg + cHHKick, tdY)/(Gear^.Density/_3);
Gear^.State:= (Gear^.State or gstMoving) and (not gstLoser);
if not Gear^.Invulnerable then
Gear^.State:= (Gear^.State or gstMoving) and (not gstWinner);
Gear^.Active:= true;
if Gear^.Kind <> gtFlame then FollowGear:= Gear
end;
if ((Mask and EXPLPoisoned) <> 0) and (Gear^.Kind = gtHedgehog) and (not Gear^.Invulnerable) then
Gear^.Hedgehog^.Effects[hePoisoned] := true;
end;
end;
gtGrave: begin
// Run the calcs only once we know we have a type that will need damage
tdX:= Gear^.X-fX;
tdY:= Gear^.Y-fY;
if hwRound(hwAbs(tdX)+hwAbs(tdY)) < dmgBase then
dmg:= dmgBase - hwRound(Distance(tdX, tdY));
if dmg > 1 then
begin
dmg:= ModifyDamage(min(dmg div 2, Radius), Gear);
Gear^.dY:= - _0_004 * dmg;
Gear^.Active:= true
end
end;
end;
end;
Gear:= Gear^.NextGear
end;
if (Mask and EXPLDontDraw) = 0 then
if (GameFlags and gfSolidLand) = 0 then
begin
cnt:= DrawExplosion(X, Y, Radius) div 1608; // approx 2 16x16 circles to erase per chunk
if (cnt > 0) and (SpritesData[sprChunk].Texture <> nil) then
for i:= 0 to cnt do
AddVisualGear(X, Y, vgtChunk)
end;
uAIMisc.AwareOfExplosion(0, 0, 0)
end;
function ModifyDamage(dmg: Longword; Gear: PGear): Longword;
var i: hwFloat;
begin
(* Invulnerability cannot be placed in here due to still needing kicks
Not without a new damage machine.
King check should be in here instead of ApplyDamage since Tiy wants them kicked less
*)
i:= _1;
if (CurrentHedgehog <> nil) and CurrentHedgehog^.King then
i:= _1_5;
if (Gear^.Hedgehog <> nil) and (Gear^.Hedgehog^.King) then
ModifyDamage:= hwRound(_0_01 * cDamageModifier * dmg * i * cDamagePercent * _0_5)
else
ModifyDamage:= hwRound(_0_01 * cDamageModifier * dmg * i * cDamagePercent)
end;
procedure ApplyDamage(Gear: PGear; AttackerHog: PHedgehog; Damage: Longword; Source: TDamageSource);
var s: shortstring;
vampDmg, tmpDmg, i: Longword;
vg: PVisualGear;
begin
if Damage = 0 then
exit; // nothing to apply
if (Gear^.Kind = gtHedgehog) then
begin
Gear^.LastDamage := AttackerHog;
Gear^.Hedgehog^.Team^.Clan^.Flawless:= false;
HHHurt(Gear^.Hedgehog, Source);
AddDamageTag(hwRound(Gear^.X), hwRound(Gear^.Y), Damage, Gear^.Hedgehog^.Team^.Clan^.Color);
tmpDmg:= min(Damage, max(0,Gear^.Health-Gear^.Damage));
if (Gear <> CurrentHedgehog^.Gear) and (CurrentHedgehog^.Gear <> nil) and (tmpDmg >= 1) then
begin
if cVampiric then
begin
vampDmg:= hwRound(int2hwFloat(tmpDmg)*_0_8);
if vampDmg >= 1 then
begin
// was considering pulsing on attack, Tiy thinks it should be permanent while in play
//CurrentHedgehog^.Gear^.State:= CurrentHedgehog^.Gear^.State or gstVampiric;
inc(CurrentHedgehog^.Gear^.Health,vampDmg);
str(vampDmg, s);
s:= '+' + s;
AddCaption(s, CurrentHedgehog^.Team^.Clan^.Color, capgrpAmmoinfo);
RenderHealth(CurrentHedgehog^);
RecountTeamHealth(CurrentHedgehog^.Team);
i:= 0;
while i < vampDmg do
begin
vg:= AddVisualGear(hwRound(CurrentHedgehog^.Gear^.X), hwRound(CurrentHedgehog^.Gear^.Y), vgtStraightShot);
if vg <> nil then
with vg^ do
begin
Tint:= $FF0000FF;
State:= ord(sprHealth)
end;
inc(i, 5);
end;
end
end;
if ((GameFlags and gfKarma) <> 0) and
((GameFlags and gfInvulnerable) = 0)
and (not CurrentHedgehog^.Gear^.Invulnerable) then
begin // this cannot just use Damage or it interrupts shotgun and gets you called stupid
inc(CurrentHedgehog^.Gear^.Karma, tmpDmg);
CurrentHedgehog^.Gear^.LastDamage := CurrentHedgehog;
spawnHealthTagForHH(CurrentHedgehog^.Gear, tmpDmg);
end;
uStats.HedgehogDamaged(Gear, AttackerHog, Damage, false);
end;
end
else if Gear^.Kind <> gtStructure then // not gtHedgehog nor gtStructure
begin
Gear^.Hedgehog:= AttackerHog;
end;
inc(Gear^.Damage, Damage);
ScriptCall('onGearDamage', Gear^.UID, Damage);
end;
procedure spawnHealthTagForHH(HHGear: PGear; dmg: Longword);
var tag: PVisualGear;
begin
tag:= AddVisualGear(hwRound(HHGear^.X), hwRound(HHGear^.Y), vgtHealthTag, dmg);
if (tag <> nil) then
tag^.Hedgehog:= HHGear^.Hedgehog; // the tag needs the tag to determine the text color
AllInactive:= false;
HHGear^.Active:= true;
end;
procedure HHHurt(Hedgehog: PHedgehog; Source: TDamageSource);
begin
if (Source = dsFall) or (Source = dsExplosion) then
case random(3) of
0: PlaySound(sndOoff1, Hedgehog^.Team^.voicepack);
1: PlaySound(sndOoff2, Hedgehog^.Team^.voicepack);
2: PlaySound(sndOoff3, Hedgehog^.Team^.voicepack);
end
else if (Source = dsPoison) then
case random(2) of
0: PlaySound(sndPoisonCough, Hedgehog^.Team^.voicepack);
1: PlaySound(sndPoisonMoan, Hedgehog^.Team^.voicepack);
end
else
case random(4) of
0: PlaySound(sndOw1, Hedgehog^.Team^.voicepack);
1: PlaySound(sndOw2, Hedgehog^.Team^.voicepack);
2: PlaySound(sndOw3, Hedgehog^.Team^.voicepack);
3: PlaySound(sndOw4, Hedgehog^.Team^.voicepack);
end
end;
procedure CheckHHDamage(Gear: PGear);
var
dmg: Longword;
i: LongInt;
particle: PVisualGear;
begin
if _0_4 < Gear^.dY then
begin
dmg := ModifyDamage(1 + hwRound((hwAbs(Gear^.dY) - _0_4) * 70), Gear);
PlaySound(sndBump);
if dmg < 1 then
exit;
for i:= min(12, (3 + dmg div 10)) downto 0 do
begin
particle := AddVisualGear(hwRound(Gear^.X) - 5 + Random(10), hwRound(Gear^.Y) + 12, vgtDust);
if particle <> nil then
particle^.dX := particle^.dX + (Gear^.dX.QWordValue / 21474836480);
end;
if (Gear^.Invulnerable) then
exit;
//if _0_6 < Gear^.dY then
// PlaySound(sndOw4, Gear^.Hedgehog^.Team^.voicepack)
//else
// PlaySound(sndOw1, Gear^.Hedgehog^.Team^.voicepack);
if Gear^.LastDamage <> nil then
ApplyDamage(Gear, Gear^.LastDamage, dmg, dsFall)
else
ApplyDamage(Gear, CurrentHedgehog, dmg, dsFall);
end
end;
procedure CalcRotationDirAngle(Gear: PGear);
var
dAngle: real;
begin
dAngle := (Gear^.dX.QWordValue + Gear^.dY.QWordValue) / $80000000;
if not Gear^.dX.isNegative then
Gear^.DirAngle := Gear^.DirAngle + dAngle
else
Gear^.DirAngle := Gear^.DirAngle - dAngle;
if Gear^.DirAngle < 0 then
Gear^.DirAngle := Gear^.DirAngle + 360
else if 360 < Gear^.DirAngle then
Gear^.DirAngle := Gear^.DirAngle - 360
end;
function CheckGearDrowning(Gear: PGear): boolean;
var
skipSpeed, skipAngle, skipDecay: hwFloat;
i, maxDrops, X, Y: LongInt;
vdX, vdY: real;
particle, splash: PVisualGear;
isSubmersible: boolean;
begin
// probably needs tweaking. might need to be in a case statement based upon gear type
Y:= hwRound(Gear^.Y);
if cWaterLine < Y + Gear^.Radius then
begin
isSubmersible:= (Gear = CurrentHedgehog^.Gear) and (CurAmmoGear <> nil) and (CurAmmoGear^.AmmoType = amJetpack);
skipSpeed := _0_25;
skipAngle := _1_9;
skipDecay := _0_87;
X:= hwRound(Gear^.X);
vdX:= hwFloat2Float(Gear^.dX);
vdY:= hwFloat2Float(Gear^.dY);
// this could perhaps be a tiny bit higher.
if (hwSqr(Gear^.dX) + hwSqr(Gear^.dY) > skipSpeed)
and (hwAbs(Gear^.dX) > skipAngle * hwAbs(Gear^.dY)) then
begin
Gear^.dY.isNegative := true;
Gear^.dY := Gear^.dY * skipDecay;
Gear^.dX := Gear^.dX * skipDecay;
CheckGearDrowning := false;
PlaySound(sndSkip)
end
else
begin
if not isSubmersible then
begin
CheckGearDrowning := true;
Gear^.State := gstDrowning;
Gear^.RenderTimer := false;
if (Gear^.Kind <> gtSniperRifleShot) and (Gear^.Kind <> gtShotgunShot)
and (Gear^.Kind <> gtDEagleShot) and (Gear^.Kind <> gtSineGunShot) then
if Gear^.Kind = gtHedgehog then
begin
if Gear^.Hedgehog^.Effects[heResurrectable] then
ResurrectHedgehog(Gear)
else
begin
Gear^.doStep := @doStepDrowningGear;
Gear^.State := Gear^.State and (not gstHHDriven);
AddCaption(Format(GetEventString(eidDrowned), Gear^.Hedgehog^.Name), cWhiteColor, capgrpMessage);
end
end
else
Gear^.doStep := @doStepDrowningGear;
if Gear^.Kind = gtFlake then
exit // skip splashes
end;
if ((not isSubmersible) and (Y < cWaterLine + 64 + Gear^.Radius))
or (isSubmersible and (Y < cWaterLine + 2 + Gear^.Radius) and ((CurAmmoGear^.Pos = 0)
and (CurAmmoGear^.dY < _0_01))) then
if Gear^.Density * Gear^.dY > _1 then
PlaySound(sndSplash)
else if Gear^.Density * Gear^.dY > _0_5 then
PlaySound(sndSkip)
else
PlaySound(sndDroplet2);
end;
if ((cReducedQuality and rqPlainSplash) = 0)
and (((not isSubmersible) and (Y < cWaterLine + 64 + Gear^.Radius))
or (isSubmersible and (Y < cWaterLine + 2 + Gear^.Radius) and ((CurAmmoGear^.Pos = 0)
and (CurAmmoGear^.dY < _0_01)))) then
begin
splash:= AddVisualGear(X, cWaterLine, vgtSplash);
if splash <> nil then
begin
splash^.Scale:= hwFloat2Float(Gear^.Density / _3 * Gear^.dY);
if splash^.Scale > 1 then splash^.Scale:= power(splash^.Scale,0.3333)
else splash^.Scale:= splash^.Scale + ((1-splash^.Scale) / 2);
end;
maxDrops := (hwRound(Gear^.Density) * 3) div 2 + round(vdX * hwRound(Gear^.Density) * 6) + round(vdY * hwRound(Gear^.Density) * 6);
for i:= max(maxDrops div 3, min(32, Random(maxDrops))) downto 0 do
begin
particle := AddVisualGear(X - 3 + Random(6), cWaterLine, vgtDroplet);
if particle <> nil then
begin
particle^.dX := particle^.dX - vdX / 10;
particle^.dY := particle^.dY - vdY / 5;
if splash <> nil then
begin
if splash^.Scale > 1 then
begin
particle^.dX:= particle^.dX * power(splash^.Scale,0.3333); // tone down the droplet height further
particle^.dY:= particle^.dY * power(splash^.Scale, 0.3333)
end
else
begin
particle^.dX:= particle^.dX * splash^.Scale;
particle^.dY:= particle^.dY * splash^.Scale
end
end
end
end
end;
if isSubmersible and (CurAmmoGear^.Pos = 0) then
CurAmmoGear^.Pos := 1000
end
else
CheckGearDrowning := false;
end;
procedure ResurrectHedgehog(gear: PGear);
var tempTeam : PTeam;
begin
AttackBar:= 0;
gear^.dX := _0;
gear^.dY := _0;
gear^.Damage := 0;
gear^.Health := gear^.Hedgehog^.InitialHealth;
gear^.Hedgehog^.Effects[hePoisoned] := false;
if not CurrentHedgehog^.Effects[heResurrectable] then
with CurrentHedgehog^ do
begin
inc(Team^.stats.AIKills);
FreeTexture(Team^.AIKillsTex);
Team^.AIKillsTex := RenderStringTex(inttostr(Team^.stats.AIKills), Team^.Clan^.Color, fnt16);
end;
tempTeam := gear^.Hedgehog^.Team;
DeleteCI(gear);
FindPlace(gear, false, 0, LAND_WIDTH, true);
if gear <> nil then
begin
RenderHealth(gear^.Hedgehog^);
ScriptCall('onGearResurrect', gear^.uid);
gear^.State := gstWait;
end;
RecountTeamHealth(tempTeam);
end;
function CountNonZeroz(x, y, r, c: LongInt): LongInt;
var i: LongInt;
count: LongInt = 0;
begin
if (y and LAND_HEIGHT_MASK) = 0 then
for i:= max(x - r, 0) to min(x + r, LAND_WIDTH - 4) do
if Land[y, i] <> 0 then
begin
inc(count);
if count = c then
exit(count)
end;
CountNonZeroz:= count;
end;
procedure FindPlace(var Gear: PGear; withFall: boolean; Left, Right: LongInt; skipProximity: boolean);
var x: LongInt;
y, sy: LongInt;
ar: array[0..511] of TPoint;
ar2: array[0..1023] of TPoint;
cnt, cnt2: Longword;
delta: LongInt;
reallySkip, tryAgain: boolean;
begin
reallySkip:= false; // try not skipping proximity at first
tryAgain:= true;
while tryAgain do
begin
delta:= 250;
cnt2:= 0;
repeat
x:= Left + LongInt(GetRandom(Delta));
repeat
inc(x, Delta);
cnt:= 0;
y:= min(1024, topY) - 2 * Gear^.Radius;
while y < cWaterLine do
begin
repeat
inc(y, 2);
until (y >= cWaterLine) or (CountNonZeroz(x, y, Gear^.Radius - 1, 1) = 0);
sy:= y;
repeat
inc(y);
until (y >= cWaterLine) or (CountNonZeroz(x, y, Gear^.Radius - 1, 1) <> 0);
if (y - sy > Gear^.Radius * 2)
and (((Gear^.Kind = gtExplosives)
and (y < cWaterLine)
and (reallySkip or (CheckGearsNear(x, y - Gear^.Radius, [gtFlame, gtHedgehog, gtMine, gtCase, gtExplosives], 60, 60) = nil))
and (CountNonZeroz(x, y+1, Gear^.Radius - 1, Gear^.Radius+1) > Gear^.Radius))
or
((Gear^.Kind <> gtExplosives)
and (y < cWaterLine)
and (reallySkip or (CheckGearsNear(x, y - Gear^.Radius, [gtFlame, gtHedgehog, gtMine, gtCase, gtExplosives], 110, 110) = nil)))) then
begin
ar[cnt].X:= x;
if withFall then
ar[cnt].Y:= sy + Gear^.Radius
else
ar[cnt].Y:= y - Gear^.Radius;
inc(cnt)
end;
inc(y, 45)
end;
if cnt > 0 then
with ar[GetRandom(cnt)] do
begin
ar2[cnt2].x:= x;
ar2[cnt2].y:= y;
inc(cnt2)
end
until (x + Delta > Right);
dec(Delta, 60)
until (cnt2 > 0) or (Delta < 70);
if (cnt2 = 0) and skipProximity and (not reallySkip) then
tryAgain:= true
else tryAgain:= false;
reallySkip:= true;
end;
if cnt2 > 0 then
with ar2[GetRandom(cnt2)] do
begin
Gear^.X:= int2hwFloat(x);
Gear^.Y:= int2hwFloat(y);
AddFileLog('Assigned Gear coordinates (' + inttostr(x) + ',' + inttostr(y) + ')');
end
else
begin
OutError('Can''t find place for Gear', false);
if Gear^.Kind = gtHedgehog then
Gear^.Hedgehog^.Effects[heResurrectable] := false;
DeleteGear(Gear);
Gear:= nil
end
end;
function CheckGearNear(Gear: PGear; Kind: TGearType; rX, rY: LongInt): PGear;
var t: PGear;
begin
t:= GearsList;
rX:= sqr(rX);
rY:= sqr(rY);
while t <> nil do
begin
if (t <> Gear) and (t^.Kind = Kind) then
if not((hwSqr(Gear^.X - t^.X) / rX + hwSqr(Gear^.Y - t^.Y) / rY) > _1) then
exit(t);
t:= t^.NextGear
end;
CheckGearNear:= nil
end;
function CheckGearsNear(mX, mY: LongInt; Kind: TGearsType; rX, rY: LongInt): PGear;
var t: PGear;
begin
t:= GearsList;
rX:= sqr(rX);
rY:= sqr(rY);
while t <> nil do
begin
if t^.Kind in Kind then
if not (hwSqr(int2hwFloat(mX) - t^.X) / rX + hwSqr(int2hwFloat(mY) - t^.Y) / rY > _1) then
exit(t);
t:= t^.NextGear
end;
CheckGearsNear:= nil
end;
end.