hedgewars: comparison hedgewars/uAI.pas

equal deleted inserted replaced

-:bde641cf53c8
+:e350500c4edb
 (*
 * Hedgewars, a free turn based strategy game
-* Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>
+* Copyright (c) 2004-2013 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
 *
 procedure ProcessBot;
 procedure FreeActionsList;
 implementation
 uses uConsts, SDLh, uAIMisc, uAIAmmoTests, uAIActions,
-uAmmos, SysUtils{$IFNDEF USE_SDLTHREADS} {$IFDEF UNIX}, cthreads{$ENDIF} {$ENDIF}, uTypes,
+uAmmos, SysUtils, uTypes,
 uVariables, uCommands, uUtils, uDebug, uAILandMarks;
 {$IFDEF AI_MAINTHREAD}
 const
 mainThreadMaxThinkTime:Integer = 1500;
 {$ENDIF}
 var BestActions: TActions;
 CanUseAmmo: array [TAmmoType] of boolean;
 StopThinking: boolean;
-{$IFDEF USE_SDLTHREADS}
+StartTicks: Longword;
-ThinkThread: PSDL_Thread = nil;
+ThinkThread: PSDL_Thread;
-{$ELSE}
+ThreadLock: PSDL_Mutex;
-ThinkThread: TThreadID;
-{$ENDIF}
-hasThread: LongInt;
-StartTicks: LongInt;
 procedure FreeActionsList;
 begin
 AddFileLog('FreeActionsList called');
-if hasThread <> 0 then
+if (ThinkThread <> nil) then
 begin
-AddFileLog('Waiting AI thread to finish');
 StopThinking:= true;
-repeat
+SDL_WaitThread(ThinkThread, nil);
-SDL_Delay(10)
+end;
-until hasThread = 0
+SDL_LockMutex(ThreadLock);
-end;
+ThinkThread:= nil;
+SDL_UnlockMutex(ThreadLock);
 with CurrentHedgehog^ do
 if Gear <> nil then
 if BotLevel <> 0 then
 StopMessages(Gear^.Message);
 BestActions.Count:= 0;
 BestActions.Pos:= 0
 end;
 const cBranchStackSize = 12;
 type TStackEntry = record
 WastedTicks: Longword;
 if (Targets.ar[i].Score >= 0) and (not StopThinking) then
 begin
 with Me^.Hedgehog^ do
 a:= CurAmmoType;
 aa:= a;
-{$IFDEF USE_SDLTHREADS}
+SDL_delay(0); // hint to let the context switch run
-SDL_delay(0);    //ThreadSwitch was only a hint
-{$ELSE}
-ThreadSwitch();
-{$ENDIF}
 repeat
 if (CanUseAmmo[a])
 and ((not rareChecks) or ((AmmoTests[a].flags and amtest_Rare) = 0))
 and ((i = 0) or ((AmmoTests[a].flags and amtest_NoTarget) = 0))
 then
 begin
 {$HINTS OFF}
-Score:= AmmoTests[a].proc(Me, Targets.ar[i].Point, BotLevel, ap);
+Score:= AmmoTests[a].proc(Me, Targets.ar[i], BotLevel, ap);
 {$HINTS ON}
 if Actions.Score + Score > BestActions.Score then
-if (BestActions.Score < 0) or (Actions.Score + Score > BestActions.Score + Byte(BotLevel) * 2048) then
+if (BestActions.Score < 0) or (Actions.Score + Score > BestActions.Score + Byte(BotLevel - 1) * 2048) then
 begin
 BestActions:= Actions;
 inc(BestActions.Score, Score);
 BestActions.isWalkingToABetterPlace:= false;
 if (ap.Angle > 0) then
 AddAction(BestActions, aia_LookRight, 0, 200, 0, 0)
 else if (ap.Angle < 0) then
 AddAction(BestActions, aia_LookLeft, 0, 200, 0, 0);
 if (Ammoz[a].Ammo.Propz and ammoprop_Timerable) <> 0 then
 AddAction(BestActions, aia_Timer, ap.Time div 1000, 400, 0, 0);
 if (Ammoz[a].Ammo.Propz and ammoprop_NoCrosshair) = 0 then
 begin
 dAngle:= LongInt(Me^.Angle) - Abs(ap.Angle);
 if dAngle > 0 then
 begin
 begin
 AddAction(BestActions, aia_Down, aim_push, 300 + random(250), 0, 0);
 AddAction(BestActions, aia_Down, aim_release, -dAngle, 0, 0)
 end
 end;
 if (Ammoz[a].Ammo.Propz and ammoprop_NeedTarget) <> 0 then
 begin
 AddAction(BestActions, aia_Put, 0, 1, ap.AttackPutX, ap.AttackPutY)
 end;
 if (Ammoz[a].Ammo.Propz and ammoprop_OscAim) <> 0 then
 begin
 AddAction(BestActions, aia_attack, aim_push, 350 + random(200), 0, 0);
 AddAction(BestActions, aia_attack, aim_release, 1, 0, 0);
 if abs(ap.Angle) > 32 then
 begin
 AddAction(BestActions, aia_Down, aim_push, 100 + random(150), 0, 0);
 AddAction(BestActions, aia_Down, aim_release, 32, 0, 0);
 end;
 AddAction(BestActions, aia_waitAngle, ap.Angle, 250, 0, 0);
 AddAction(BestActions, aia_attack, aim_push, 1, 0, 0);
 AddAction(BestActions, aia_attack, aim_release, 1, 0, 0);
 end else
 if (Ammoz[a].Ammo.Propz and ammoprop_AttackingPut) = 0 then
 else
 maxticks:= TurnTimeLeft;
 if (Me^.State and gstAttacked) = 0 then
 TestAmmos(Actions, Me, false);
 BestRate:= RatePlace(Me);
 BaseRate:= Max(BestRate, 0);
-// switch to 'skip' if we can't move because of mouse cursor being shown
+// switch to 'skip' if we cannot move because of mouse cursor being shown
 if (Ammoz[Me^.Hedgehog^.CurAmmoType].Ammo.Propz and ammoprop_NeedTarget) <> 0 then
 AddAction(Actions, aia_Weapon, Longword(amSkip), 100 + random(200), 0, 0);
 if ((CurrentHedgehog^.MultiShootAttacks = 0) or ((Ammoz[Me^.Hedgehog^.CurAmmoType].Ammo.Propz and ammoprop_NoMoveAfter) = 0))
 and (GameFlags and gfArtillery = 0) then
 begin
 tmp:= random(2) + 1;
 Push(0, Actions, Me^, tmp);
 Push(0, Actions, Me^, tmp xor 3);
 while (Stack.Count > 0) and (not StopThinking) do
 begin
 Pop(ticks, Actions, Me^);
 AddAction(Actions, Me^.Message, aim_push, 250, 0, 0);
 if (Me^.Message and gmLeft) <> 0 then
 AddAction(Actions, aia_WaitXL, hwRound(Me^.X), 0, 0, 0)
 else
 AddAction(Actions, aia_WaitXR, hwRound(Me^.X), 0, 0, 0);
 steps:= 0;
 while (not StopThinking) do
 begin
 {$HINTS OFF}
 oldticks:= ticks;
 inc(ticks, GoInfo.Ticks);
 if ticks > maxticks then
 break;
 if (BotLevel < 5)
 and (GoInfo.JumpType = jmpHJump)
 and (not checkMark(hwRound(Me^.X), hwRound(Me^.Y), markHJumped))
 then // hjump support
 begin
 // check if we could go backwards and maybe ljump over a gap after this hjump
 addMark(hwRound(Me^.X), hwRound(Me^.Y), markHJumped);
 begin
 if (Me^.Message and gmLeft) <> 0 then
 AddAction(MadeActions, aia_LookRight, 0, 200, 0, 0)
 else
 AddAction(MadeActions, aia_LookLeft, 0, 200, 0, 0);
 AddAction(MadeActions, aia_HJump, 0, 305 + random(50), 0, 0);
 AddAction(MadeActions, aia_HJump, 0, 350, 0, 0);
 end;
 // but first check walking forward
 Push(ticks, Stack.States[Pred(Stack.Count)].MadeActions, AltMe, Me^.Message)
 end;
 end;
 if (BotLevel < 3)
 and (GoInfo.JumpType = jmpLJump)
 and (not checkMark(hwRound(Me^.X), hwRound(Me^.Y), markLJumped))
 then // ljump support
 begin
 addMark(hwRound(Me^.X), hwRound(Me^.Y), markLJumped);
 // at final check where we go after jump walking backward
 AddAction(MadeActions, aia_LJump, 0, 305 + random(50), 0, 0);
 end;
 // push current position so we proceed from it after checking jump+forward walk opportunities
 if CanGo then Push(ticks, Actions, Me^, Me^.Message);
 // first check where we go after jump walking forward
 if Push(ticks, Actions, AltMe, Me^.Message) then
 with Stack.States[Pred(Stack.Count)] do
 AddAction(MadeActions, aia_LJump, 0, 305 + random(50), 0, 0);
 break
 end;
-// 'not CanGO' means we can't go straight, possible jumps are checked above
+// 'not CanGO' means we cannot go straight, possible jumps are checked above
-if (not CanGo) then
+if not CanGo then
 break;
 inc(steps);
 Actions.actions[Pred(Actions.Count)].Param:= hwRound(Me^.X);
 Rate:= RatePlace(Me);
 if Rate > BestRate then
 begin
 BestRate:= Rate;
 Me^.State:= Me^.State or gstAttacked // we have better place, go there and do not use ammo
 end
 else if Rate < BestRate then
 break;
 if ((Me^.State and gstAttacked) = 0) and ((steps mod 4) = 0) then
 begin
 if (steps > 4) and checkMark(hwRound(Me^.X), hwRound(Me^.Y), markWalkedHere) then
 break;
 addMark(hwRound(Me^.X), hwRound(Me^.Y), markWalkedHere);
 TestAmmos(Actions, Me, ticks shr 12 = oldticks shr 12);
 end;
 if GoInfo.FallPix >= FallPixForBranching then
 Push(ticks, Actions, Me^, Me^.Message xor 3); // aia_Left xor 3 = aia_Right
 {$IFDEF AI_MAINTHREAD}
 if StartTicks < (SDL_GetTicks() - mainThreadMaxThinkTime) then
 exit
 end {while}
 end {if}
 end;
-function Think(Me: Pointer): ptrint;
+function Think(Me: PGear): LongInt; cdecl; export;
 var BackMe, WalkMe: TGear;
 switchCount: LongInt;
 currHedgehogIndex, itHedgehog, switchesNum, i: Longword;
 switchImmediatelyAvailable: boolean;
 Actions: TActions;
 begin
-InterlockedIncrement(hasThread);
+dmgMod:= 0.01 * hwFloat2Float(cDamageModifier) * cDamagePercent;
-{$IFDEF AI_MAINTHREAD}
-StartTicks:= SDL_GetTicks();
-{$ELSE}
 StartTicks:= GameTicks;
-{$ENDIF}
 currHedgehogIndex:= CurrentTeam^.CurrHedgehog;
 itHedgehog:= currHedgehogIndex;
 switchesNum:= 0;
 switchImmediatelyAvailable:= (CurAmmoGear <> nil) and (CurAmmoGear^.Kind = gtSwitcher);
-if PGear(Me)^.Hedgehog^.BotLevel <> 5 then
+if Me^.Hedgehog^.BotLevel <> 5 then
 switchCount:= HHHasAmmo(PGear(Me)^.Hedgehog^, amSwitch)
 else switchCount:= 0;
-if (PGear(Me)^.State and gstAttacking) = 0 then
+if ((Me^.State and gstAttacked) = 0) or isInMultiShoot then
 if Targets.Count > 0 then
 begin
 // iterate over current team hedgehogs
 repeat
 WalkMe:= CurrentTeam^.Hedgehogs[itHedgehog].Gear^;
 begin
 if (not switchImmediatelyAvailable)  then
 begin
 // when AI has to use switcher, make it cost smth unless they have a lot of switches
 if (switchCount < 10) then Actions.Score:= (-27+switchCount*3)*4000;
 AddAction(Actions, aia_Weapon, Longword(amSwitch), 300 + random(200), 0, 0);
 AddAction(Actions, aia_attack, aim_push, 300 + random(300), 0, 0);
 AddAction(Actions, aia_attack, aim_release, 1, 0, 0);
 end;
 for i:= 1 to switchesNum do
 AddAction(Actions, aia_Switch, 0, 300 + random(200), 0, 0);
 // find another hog in team
 repeat
 itHedgehog:= Succ(itHedgehog) mod CurrentTeam^.HedgehogsNumber;
 until (itHedgehog = currHedgehogIndex) or ((CurrentTeam^.Hedgehogs[itHedgehog].Gear <> nil) and (CurrentTeam^.Hedgehogs[itHedgehog].Effects[heFrozen]=0));
 inc(switchesNum);
 until (not (switchImmediatelyAvailable or (switchCount > 0)))
 or StopThinking
 or (itHedgehog = currHedgehogIndex)
 or BestActions.isWalkingToABetterPlace;
 {$IFDEF AI_MAINTHREAD}
 if StartTicks < (SDL_GetTicks() - mainThreadMaxThinkTime) then
 end;
 end else SDL_Delay(100)
 else
 begin
-BackMe:= PGear(Me)^;
+BackMe:= Me^;
+i:= 12;
-//{$IFNDEF AI_MAINTHREAD}
+while (not StopThinking) and (BestActions.Count = 0) and (i > 0) do
-while (not StopThinking) and (BestActions.Count = 0) do
 begin
 (*
 // Maybe this would get a bit of movement out of them? Hopefully not *toward* water. Need to check how often he'd choose that strategy
 if SuddenDeathDmg and ((hwRound(BackMe.Y)+cWaterRise*2) > cWaterLine) then
 WalkMe:= BackMe;
 Actions.Count:= 0;
 Actions.Pos:= 0;
 Actions.Score:= 0;
 Walk(@WalkMe, Actions);
-{$IFNDEF AI_MAINTHREAD}
+dec(i);
-if (not StopThinking) then
+if not StopThinking then
 SDL_Delay(100)
-{$ENDIF}
 end
-//{$ENDIF}
 end;
-PGear(Me)^.State:= PGear(Me)^.State and (not gstHHThinking);
+Me^.State:= Me^.State and (not gstHHThinking);
+SDL_LockMutex(ThreadLock);
+ThinkThread:= nil;
+SDL_UnlockMutex(ThreadLock);
 Think:= 0;
-InterlockedDecrement(hasThread)
 end;
 procedure StartThink(Me: PGear);
 begin
 if ((Me^.State and (gstAttacking or gstHHJumping or gstMoving)) <> 0)
 begin
 OutError('AI: no targets!?', false);
 exit
 end;
-FillBonuses((Me^.State and gstAttacked) <> 0);
+FillBonuses(((Me^.State and gstAttacked) <> 0) and (not isInMultiShoot));
-AddFileLog('Enter Think Thread');
+SDL_LockMutex(ThreadLock);
-{$IFDEF AI_MAINTHREAD}
+ThinkThread:= SDL_CreateThread(@Think{$IFDEF SDL13}, 'think'{$ENDIF}, Me);
-Think(Me);
+SDL_UnlockMutex(ThreadLock);
-{$ELSE}
+end;
-{$IFDEF USE_SDLTHREADS}
-ThinkThread := SDL_CreateThread(@Think{$IFDEF SDL13}, nil{$ENDIF}, Me);
+{$IFDEF DEBUGAI}
-{$ELSE}
+var scoreShown: boolean = false;
-BeginThread(@Think, Me, ThinkThread);
 {$ENDIF}
-AddFileLog('Thread started');
-{$ENDIF}
-end;
-//var scoreShown: boolean = false;
 procedure ProcessBot;
 const cStopThinkTime = 40;
 begin
 with CurrentHedgehog^ do
 if Gear^.Message <> 0 then
 begin
 StopMessages(Gear^.Message);
 TryDo((Gear^.Message and gmAllStoppable) = 0, 'Engine bug: AI may break demos playing', true);
 end;
 if Gear^.Message <> 0 then
 exit;
-//scoreShown:= false;
+{$IFDEF DEBUGAI}
+scoreShown:= false;
+{$ENDIF}
 StartThink(Gear);
 StartTicks:= GameTicks
 end else
 begin
-{if not scoreShown then
+{$IFDEF DEBUGAI}
+if not scoreShown then
 begin
 if BestActions.Score > 0 then ParseCommand('/say Expected score = ' + inttostr(BestActions.Score div 1024), true);
 scoreShown:= true
-end;}
+end;
+{$ENDIF}
 ProcessAction(BestActions, Gear)
 end
 else if ((GameTicks - StartTicks) > cMaxAIThinkTime)
 or (TurnTimeLeft <= cStopThinkTime) then
 StopThinking:= true
 end;
 procedure initModule;
 begin
-hasThread:= 0;
 StartTicks:= 0;
-{$IFNDEF PAS2C}
+ThinkThread:= nil;
-ThinkThread:= ThinkThread;
+ThreadLock:= SDL_CreateMutex();
-{$ENDIF}
 end;
 procedure freeModule;
 begin
 FreeActionsList();
+SDL_DestroyMutex(ThreadLock);
 end;
 end.

branch	webgl
changeset 9127	e350500c4edb
parent 8833	c13ebed437cb
parent 9080	9b42757d7e71
child 9521	8054d9d775fd