(*
* Hedgewars, a free turn based strategy game
* Copyright (c) 2004-2015 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*)
{$INCLUDE "options.inc"}
unit uGearsUtils;
interface
uses uTypes, uFloat;
procedure doMakeExplosion(X, Y, Radius: LongInt; AttackingHog: PHedgehog; Mask: Longword); inline;
procedure doMakeExplosion(X, Y, Radius: LongInt; AttackingHog: PHedgehog; Mask: Longword; const Tint: LongWord);
procedure AddSplashForGear(Gear: PGear; justSkipping: boolean);
procedure AddBounceEffectForGear(Gear: PGear; imageScale: Single);
procedure AddBounceEffectForGear(Gear: PGear);
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; Damage: Longword);
procedure HHHeal(Hedgehog: PHedgehog; healthBoost: LongInt; showMessage: boolean; vgTint: Longword);
procedure HHHeal(Hedgehog: PHedgehog; healthBoost: LongInt; showMessage: boolean);
function IncHogHealth(Hedgehog: PHedgehog; healthBoost: LongInt): LongInt;
procedure CheckHHDamage(Gear: PGear);
procedure CalcRotationDirAngle(Gear: PGear);
procedure ResurrectHedgehog(var gear: PGear);
procedure FindPlace(var Gear: PGear; withFall: boolean; Left, Right: LongInt); inline;
procedure FindPlace(var Gear: PGear; withFall: boolean; Left, Right: LongInt; skipProximity: boolean);
function CheckGearNear(Kind: TGearType; X, Y: hwFloat; rX, rY: LongInt): PGear;
function CheckGearNear(Gear: PGear; Kind: TGearType; rX, rY: LongInt): PGear;
function CheckGearDrowning(var Gear: PGear): boolean;
procedure CheckCollision(Gear: PGear); inline;
procedure CheckCollisionWithLand(Gear: PGear); inline;
procedure AmmoShove(Ammo: PGear; Damage, Power: LongInt);
procedure AmmoShoveCache(Ammo: PGear; Damage, Power: LongInt);
procedure AmmoShoveLine(Ammo: PGear; Damage, Power: LongInt; oX, oY, tX, tY: hwFloat);
function GearsNear(X, Y: hwFloat; Kind: TGearType; r: LongInt): PGearArrayS;
function SpawnBoxOfSmth: PGear;
procedure PlayBoxSpawnTaunt(Gear: PGear);
procedure ShotgunShot(Gear: PGear);
function CanUseTardis(HHGear: PGear): boolean;
procedure SetAllToActive;
procedure SetAllHHToActive(Ice: boolean);
procedure SetAllHHToActive(); inline;
function GetAmmo(Hedgehog: PHedgehog): TAmmoType;
function GetUtility(Hedgehog: PHedgehog): TAmmoType;
function WorldWrap(var Gear: PGear): boolean;
function HomingWrap(var Gear: PGear): boolean;
function IsHogFacingLeft(Gear: PGear): boolean;
function IsHogLocal(HH: PHedgehog): boolean;
function MakeHedgehogsStep(Gear: PGear) : boolean;
var doStepHandlers: array[TGearType] of TGearStepProcedure;
implementation
uses uSound, uCollisions, uUtils, uConsts, uVisualGears, uAIMisc,
uVariables, uLandGraphics, uScript, uStats, uCaptions, uTeams, uStore,
uLocale, uTextures, uRenderUtils, uRandom, SDLh, uDebug,
uGearsList, Math, uVisualGearsList, uGearsHandlersMess,
uGearsHedgehog;
procedure doMakeExplosion(X, Y, Radius: LongInt; AttackingHog: PHedgehog; Mask: Longword); inline;
begin
doMakeExplosion(X, Y, Radius, AttackingHog, Mask, $FFFFFFFF);
end;
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;
wrap: boolean;
bubble: PVisualGear;
s: ansistring;
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 CheckCoordInWater(X, Y - Radius) then
begin
cnt:= 2 * Radius;
for i:= (Radius * Radius) div 4 downto 0 do
begin
bubble := AddVisualGear(X - Radius + random(cnt), Y - Radius + random(cnt), vgtBubble);
if bubble <> nil then
bubble^.dY:= 0.1 + random(20)/10;
end
end
else 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);
dmgBase:= Radius shl 1 + cHHRadius div 2;
// we might have to run twice if weWrap is enabled
wrap:= false;
repeat
fX:= int2hwFloat(X);
fY:= int2hwFloat(Y);
Gear:= GearsList;
while Gear <> nil do
begin
dmg:= 0;
if (Gear^.State and gstNoDamage) = 0 then
begin
case Gear^.Kind of
gtHedgehog,
gtMine,
gtBall,
gtMelonPiece,
gtGrenade,
gtClusterBomb,
gtSMine,
gtAirMine,
gtCase,
gtTarget,
gtFlame,
gtKnife,
gtExplosives: 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 LongInt(tdX.Round + tdY.Round + 2) < dmgBase then
dmg:= dmgBase - hwRound(Distance(tdX, tdY));
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 (Gear^.Kind <> gtHedgehog) or (Gear^.Hedgehog^.Effects[heInvulnerable] = 0) 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 Gear^.Kind = gtKnife then Gear^.State:= Gear^.State and (not gstCollision);
if (Gear^.Kind = gtHedgehog) and (Gear^.Hedgehog^.Effects[heInvulnerable] = 0) then
begin
Gear^.State:= (Gear^.State or gstMoving) and (not (gstHHJumping or gstHHHJump));
if (not GameOver) then
Gear^.State:= (Gear^.State and (not gstWinner));
end;
Gear^.Active:= true;
if Gear^.Kind <> gtFlame then FollowGear:= Gear;
if Gear^.Kind = gtAirMine then
begin
Gear^.Tag:= 1;
Gear^.FlightTime:= 5000;
end
end;
if ((Mask and EXPLPoisoned) <> 0) and (Gear^.Kind = gtHedgehog) and
(Gear^.Hedgehog^.Effects[heInvulnerable] = 0) and (Gear^.Hedgehog^.Effects[heFrozen] = 0) and
(Gear^.State and gstHHDeath = 0) then
begin
if Gear^.Hedgehog^.Effects[hePoisoned] = 0 then
begin
s:= ansistring(Gear^.Hedgehog^.Name);
AddCaption(FormatA(GetEventString(eidPoisoned), s), capcolDefault, capgrpMessage);
uStats.HedgehogPoisoned(Gear, AttackingHog)
end;
Gear^.Hedgehog^.Effects[hePoisoned] := 5;
end
end;
end;
gtGrave: if Mask and EXPLDoNotTouchAny = 0 then
// Run the calcs only once we know we have a type that will need damage
begin
tdX:= Gear^.X-fX;
tdY:= Gear^.Y-fY;
if LongInt(tdX.Round + tdY.Round + 2) < 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) or ((Mask and EXPLForceDraw) <> 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;
if (WorldEdge = weWrap) then
begin
// already wrapped? let's not wrap again!
if wrap then
break;
// Radius + 5 because that's the actual radius the explosion changes graphically
if X + (Radius + 5) > rightX then
begin
dec(X, playWidth);
wrap:= true;
end
else if X - (Radius + 5) < leftX then
begin
inc(X, playWidth);
wrap:= true;
end;
end;
until (not wrap);
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^.Kind = gtHedgehog) and (Gear^.Hedgehog <> nil) and
(Gear^.Hedgehog^.King or (Gear^.Hedgehog^.Effects[heFrozen] > 0)) then
ModifyDamage:= hwRound(cDamageModifier * dmg * i * cDamagePercent * _0_5 * _0_01)
else
ModifyDamage:= hwRound(cDamageModifier * dmg * i * cDamagePercent * _0_01);
end;
procedure ApplyDamage(Gear: PGear; AttackerHog: PHedgehog; Damage: Longword; Source: TDamageSource);
var 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;
if (Gear^.State and gstHHDeath) = 0 then
begin
HHHurt(Gear^.Hedgehog, Source, Damage);
AddDamageTag(hwRound(Gear^.X), hwRound(Gear^.Y), Damage, Gear^.Hedgehog^.Team^.Clan^.Color);
end;
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;
vampDmg:= IncHogHealth(CurrentHedgehog, vampDmg);
RenderHealth(CurrentHedgehog^);
RecountTeamHealth(CurrentHedgehog^.Team);
HHHeal(CurrentHedgehog, vampDmg, true, $FF0000FF);
end
end;
if (GameFlags and gfKarma <> 0) and (GameFlags and gfInvulnerable = 0) and
(CurrentHedgehog^.Effects[heInvulnerable] = 0) 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;
end;
uStats.HedgehogDamaged(Gear, AttackerHog, Damage, false);
if AprilOne and (Gear^.Hedgehog^.Hat = 'fr_tomato') and (Damage > 2) then
for i := 0 to random(min(Damage,20))+5 do
begin
vg:= AddVisualGear(hwRound(Gear^.X), hwRound(Gear^.Y), vgtStraightShot);
if vg <> nil then
with vg^ do
begin
dx:= 0.001 * (random(100)+10);
dy:= 0.001 * (random(100)+10);
tdy:= -cGravityf;
if random(2) = 0 then
dx := -dx;
FrameTicks:= random(500) + 1000;
State:= ord(sprBubbles);
Tint:= $ff0000ff
end
end
end else
Gear^.Hedgehog:= AttackerHog;
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;
// Play effects for hurt hedgehog
procedure HHHurt(Hedgehog: PHedgehog; Source: TDamageSource; Damage: Longword);
begin
if Hedgehog^.Effects[heFrozen] <> 0 then exit;
if (Damage >= ouchDmg) and (OuchTauntTimer = 0) and ((Source = dsFall) or (Source = dsBullet) or (Source = dsShove) or (Source = dsHammer)) then
begin
PlaySoundV(sndOuch, Hedgehog^.Team^.voicepack);
// Prevent sndOuch from being played too often in short time
OuchTauntTimer:= 1250;
end
else if (Source = dsFall) or (Source = dsExplosion) then
case random(3) of
0: PlaySoundV(sndOoff1, Hedgehog^.Team^.voicepack);
1: PlaySoundV(sndOoff2, Hedgehog^.Team^.voicepack);
2: PlaySoundV(sndOoff3, Hedgehog^.Team^.voicepack);
end
else if (Source = dsPoison) then
case random(2) of
0: PlaySoundV(sndPoisonCough, Hedgehog^.Team^.voicepack);
1: PlaySoundV(sndPoisonMoan, Hedgehog^.Team^.voicepack);
end
else
case random(4) of
0: PlaySoundV(sndOw1, Hedgehog^.Team^.voicepack);
1: PlaySoundV(sndOw2, Hedgehog^.Team^.voicepack);
2: PlaySoundV(sndOw3, Hedgehog^.Team^.voicepack);
3: PlaySoundV(sndOw4, Hedgehog^.Team^.voicepack);
end
end;
{-
Show heal particles and message at hog gear.
Hedgehog: Hedgehog which gets the health boost
healthBoost: Amount of added health added
showMessage: Whether to show announcer message
vgTint: Tint of heal particle (if 0, don't render particles)
-}
procedure HHHeal(Hedgehog: PHedgehog; healthBoost: LongInt; showMessage: boolean; vgTint: Longword);
var i: LongInt;
vg: PVisualGear;
s: ansistring;
begin
if healthBoost < 1 then
exit;
if showMessage then
begin
s:= IntToStr(healthBoost);
AddCaption(FormatA(trmsg[sidHealthGain], s), Hedgehog^.Team^.Clan^.Color, capgrpAmmoinfo)
end;
i:= 0;
// One particle for every 5 HP. Max. 200 particles
if (vgTint <> 0) then
while (i < healthBoost) and (i < 1000) do
begin
vg:= AddVisualGear(hwRound(Hedgehog^.Gear^.X), hwRound(Hedgehog^.Gear^.Y), vgtStraightShot);
if vg <> nil then
with vg^ do
begin
Tint:= vgTint;
State:= ord(sprHealth)
end;
inc(i, 5)
end;
end;
// Shorthand for the same above, but with tint implied
procedure HHHeal(Hedgehog: PHedgehog; healthBoost: LongInt; showMessage: boolean);
begin
HHHeal(Hedgehog, healthBoost, showMessage, $00FF00FF);
end;
// Increase hog health by healthBoost (at least 1).
// Resulting health is capped at cMaxHogHealth.
// Returns actual amount healed.
function IncHogHealth(Hedgehog: PHedgehog; healthBoost: LongInt): LongInt;
var oldHealth: LongInt;
begin
if healthBoost < 1 then
begin
IncHogHealth:= 0;
exit;
end;
oldHealth:= Hedgehog^.Gear^.Health;
inc(Hedgehog^.Gear^.Health, healthBoost);
// Prevent overflow
if (Hedgehog^.Gear^.Health < 1) or (Hedgehog^.Gear^.Health > cMaxHogHealth) then
Hedgehog^.Gear^.Health:= cMaxHogHealth;
IncHogHealth:= Hedgehog^.Gear^.Health - oldHealth;
end;
procedure CheckHHDamage(Gear: PGear);
var
dmg: LongInt;
i: LongWord;
particle: PVisualGear;
begin
if _0_4 < Gear^.dY then
begin
dmg := ModifyDamage(1 + hwRound((Gear^.dY - _0_4) * 70), Gear);
if Gear^.Hedgehog^.Effects[heFrozen] = 0 then
PlaySound(sndBump)
else PlaySound(sndFrozenHogImpact);
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^.Hedgehog^.Effects[heInvulnerable] <> 0)) then
exit;
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
// Frac/Round to be kind to JS as of 2012-08-27 where there is yet no int64/uint64
dAngle := (Gear^.dX.Round + Gear^.dY.Round) / 2 + (Gear^.dX.Frac/$100000000+Gear^.dY.Frac/$100000000);
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;
procedure AddSplashForGear(Gear: PGear; justSkipping: boolean);
var x, y, i, distL, distR, distB, minDist, maxDrops: LongInt;
splash, particle: PVisualGear;
speed, hwTmp: hwFloat;
vi, vs, tmp: real; // impact speed and sideways speed
isImpactH, isImpactRight: boolean;
const dist2surf = 4;
begin
x:= hwRound(Gear^.X);
y:= hwRound(Gear^.Y);
// find position for splash and impact speed
distB:= cWaterline - y;
if WorldEdge <> weSea then
minDist:= distB
else
begin
distL:= x - leftX;
distR:= rightX - x;
minDist:= min(distB, min(distL, distR));
end;
isImpactH:= (minDist <> distB);
if not isImpactH then
begin
y:= cWaterline - dist2surf;
speed:= hwAbs(Gear^.dY);
end
else
begin
isImpactRight := minDist = distR;
if isImpactRight then
x:= rightX - dist2surf
else
x:= leftX + dist2surf;
speed:= hwAbs(Gear^.dX);
end;
// splash sound
if justSkipping then
PlaySound(sndSkip)
else
begin
// adjust water impact sound based on gear speed and density
hwTmp:= hwAbs(Gear^.Density * speed);
if hwTmp > _1 then
PlaySound(sndSplash)
else if hwTmp > _0_5 then
PlaySound(sndSkip)
else if hwTmp > _0_0002 then // arbitrary sanity cutoff. mostly for airmines
PlaySound(sndDroplet2);
end;
// splash visuals
if ((cReducedQuality and rqPlainSplash) <> 0) then
exit;
splash:= AddVisualGear(x, y, vgtSplash);
if splash = nil then
exit;
if not isImpactH then
vs:= abs(hwFloat2Float(Gear^.dX))
else
begin
if isImpactRight then
splash^.Angle:= -90
else
splash^.Angle:= 90;
vs:= abs(hwFloat2Float(Gear^.dY));
end;
vi:= hwFloat2Float(speed);
with splash^ do
begin
Scale:= abs(hwFloat2Float(Gear^.Density / _3 * speed));
if Scale > 1 then Scale:= power(Scale,0.3333)
else Scale:= Scale + ((1-Scale) / 2);
if Scale > 1 then Timer:= round(min(Scale*0.0005/cGravityf,4))
else Timer:= 1;
if Scale > 1 then
if (not isImpactH) then
Y:= Y + 10
else if isImpactRight then
X:= X + 10
else
X:= X - 10;
// Low Gravity
FrameTicks:= FrameTicks*Timer;
end;
// eject water drops
maxDrops := (hwRound(Gear^.Density) * 3) div 2 + round((vi + vs) * hwRound(Gear^.Density) * 6);
for i:= max(maxDrops div 3, min(32, Random(maxDrops))) downto 0 do
begin
if isImpactH then
particle := AddVisualGear(x, y - 3 + Random(7), vgtDroplet)
else
particle := AddVisualGear(x - 3 + Random(7), y, vgtDroplet);
if particle <> nil then
with particle^ do
begin
// dX and dY were initialized to have a random value on creation (see uVisualGearsList)
if isImpactH then
begin
tmp:= dX;
if isImpactRight then
dX:= dY - vi / 5
else
dX:= -dy + vi / 5;
dY:= tmp * (1 + vs / 10);
end
else
begin
dX:= dX * (1 + vs / 10);
dY:= dY - vi / 5;
end;
if splash <> nil then
begin
if splash^.Scale > 1 then
begin
dX:= dX * power(splash^.Scale, 0.3333); // tone down the droplet height further
dY:= dY * power(splash^.Scale, 0.3333);
end
else
begin
dX:= dX * splash^.Scale;
dY:= dY * splash^.Scale;
end;
end;
end
end;
end;
procedure DrownGear(Gear: PGear);
begin
Gear^.doStep := @doStepDrowningGear;
Gear^.Timer := 5000; // how long game should wait
end;
function CheckGearDrowning(var Gear: PGear): boolean;
var
skipSpeed, skipAngle, skipDecay: hwFloat;
tmp, X, Y, dist2Water: LongInt;
isSubmersible, isDirH, isImpact, isSkip: boolean;
s: ansistring;
begin
// probably needs tweaking. might need to be in a case statement based upon gear type
X:= hwRound(Gear^.X);
Y:= hwRound(Gear^.Y);
dist2Water:= cWaterLine - (Y + Gear^.Radius);
isDirH:= false;
if WorldEdge = weSea then
begin
tmp:= dist2Water;
dist2Water:= min(dist2Water, min(X - Gear^.Radius - leftX, rightX - (X + Gear^.Radius)));
// if water on sides is closer than on bottom -> horizontal direction
isDirH:= tmp <> dist2Water;
end;
isImpact:= false;
if dist2Water < 0 then
begin
// invisible gears will just be deleted
// unless they are generic fallers, then they will be "respawned"
if Gear^.State and gstInvisible <> 0 then
begin
if Gear^.Kind = gtGenericFaller then
begin
Gear^.X:= int2hwFloat(GetRandom(rightX-leftX)+leftX);
Gear^.Y:= int2hwFloat(GetRandom(LAND_HEIGHT-topY)+topY);
Gear^.dX:= _90-(GetRandomf*_360);
Gear^.dY:= _90-(GetRandomf*_360)
end
else DeleteGear(Gear);
exit(true)
end;
isSubmersible:= ((Gear = CurrentHedgehog^.Gear) and (CurAmmoGear <> nil) and (CurAmmoGear^.State and gstSubmersible <> 0)) or (Gear^.State and gstSubmersible <> 0);
skipSpeed := _0_25;
skipAngle := _1_9;
skipDecay := _0_87;
// skipping
if (not isSubmersible) and (hwSqr(Gear^.dX) + hwSqr(Gear^.dY) > skipSpeed)
and ( ((not isDirH) and (hwAbs(Gear^.dX) > skipAngle * hwAbs(Gear^.dY)))
or (isDirH and (hwAbs(Gear^.dY) > skipAngle * hwAbs(Gear^.dX))) ) then
begin
isSkip:= true;
// if skipping we move the gear out of water
if isDirH then
begin
Gear^.dX.isNegative := (not Gear^.dX.isNegative);
Gear^.X:= Gear^.X + Gear^.dX;
end
else
begin
Gear^.dY.isNegative := (not Gear^.dY.isNegative);
Gear^.Y:= Gear^.Y + Gear^.dY;
end;
Gear^.dY := Gear^.dY * skipDecay;
Gear^.dX := Gear^.dX * skipDecay;
CheckGearDrowning := false;
end
else // not skipping
begin
isImpact:= true;
isSkip:= false;
if not isSubmersible then
begin
CheckGearDrowning := true;
Gear^.State := gstDrowning;
if Gear = CurrentHedgehog^.Gear then
TurnTimeLeft := 0;
Gear^.RenderTimer := false;
if (Gear^.Kind <> gtSniperRifleShot) and (Gear^.Kind <> gtShotgunShot)
and (Gear^.Kind <> gtDEagleShot) and (Gear^.Kind <> gtSineGunShot)
and (Gear^.Kind <> gtMinigunBullet) then
if Gear^.Kind = gtHedgehog then
begin
if Gear^.Hedgehog^.Effects[heResurrectable] <> 0 then
begin
// Gear could become nil after this, just exit to skip splashes
ResurrectHedgehog(Gear);
exit(true)
end
else
begin
DrownGear(Gear);
Gear^.State := Gear^.State and (not gstHHDriven);
s:= ansistring(Gear^.Hedgehog^.Name);
if Gear^.Hedgehog^.King then
AddCaption(FormatA(GetEventString(eidKingDied), s), capcolDefault, capgrpMessage)
else
AddCaption(FormatA(GetEventString(eidDrowned), s), capcolDefault, capgrpMessage);
end
end
else
DrownGear(Gear);
if Gear^.Kind = gtFlake then
exit(true); // skip splashes
end
else // submersible
begin
// drown submersible gears if far below map
if (Y > cWaterLine + cVisibleWater*4) then
begin
DrownGear(Gear);
exit(true); // no splashes needed
end;
CheckGearDrowning := false;
// check if surface was penetrated
// no penetration if center's water distance not smaller than radius
if ((dist2Water + Gear^.Radius div 2) < 0) or (abs(dist2Water + Gear^.Radius) >= Gear^.Radius) then
isImpact:= false
else
begin
// get distance to water of last tick
if isDirH then
begin
tmp:= hwRound(Gear^.X - Gear^.dX);
if abs(tmp - real(leftX)) < abs(tmp - real(rightX)) then // left edge
isImpact:= (abs(tmp-real(leftX)) >= Gear^.Radius) and (Gear^.dX.isNegative)
else
isImpact:= (abs(tmp-real(rightX)) >= Gear^.Radius) and (not Gear^.dX.isNegative);
end
else
begin
tmp:= hwRound(Gear^.Y - Gear^.dY);
tmp:= abs(cWaterLine - tmp);
// there was an impact if distance was >= radius
isImpact:= (tmp >= Gear^.Radius) and (not Gear^.dY.isNegative);
end;
end;
end; // end of submersible
end; // end of not skipping
// splash sound animation and droplets
if isImpact or isSkip then
if (not (((dist2Water + Gear^.Radius div 2) < 0) or (abs(dist2Water + Gear^.Radius) >= Gear^.Radius))) then
addSplashForGear(Gear, isSkip);
if isSkip then
ScriptCall('onGearWaterSkip', Gear^.uid);
end
else
CheckGearDrowning := false
end;
procedure ResurrectHedgehog(var gear: PGear);
var tempTeam : PTeam;
sparkles, expl: PVisualGear;
gX, gY: LongInt;
begin
if (Gear^.LastDamage <> nil) then
uStats.HedgehogDamaged(Gear, Gear^.LastDamage, 0, true)
else
uStats.HedgehogDamaged(Gear, CurrentHedgehog, 0, true);
// Reset gear state
AttackBar:= 0;
gear^.dX := _0;
gear^.dY := _0;
gear^.Damage := 0;
gear^.Health := gear^.Hedgehog^.InitialHealth;
gear^.Hedgehog^.Effects[hePoisoned] := 0;
if (CurrentHedgehog^.Effects[heResurrectable] = 0) or ((CurrentHedgehog^.Effects[heResurrectable] <> 0)
and (Gear^.Hedgehog^.Team^.Clan <> CurrentHedgehog^.Team^.Clan)) then
with CurrentHedgehog^ do
begin
inc(Team^.stats.AIKills);
FreeAndNilTexture(Team^.AIKillsTex);
Team^.AIKillsTex := RenderStringTex(ansistring(inttostr(Team^.stats.AIKills)), Team^.Clan^.Color, fnt16);
end;
tempTeam := gear^.Hedgehog^.Team;
DeleteCI(gear);
gX := hwRound(gear^.X);
gY := hwRound(gear^.Y);
// Spawn a few sparkles at death position.
// Might need more sparkles for a column.
sparkles:= AddVisualGear(gX, gY, vgtDust, 1);
if sparkles <> nil then
begin
sparkles^.Tint:= tempTeam^.Clan^.Color shl 8 or $FF;
end;
// Set new position of gear (might fail)
FindPlace(gear, false, 0, LAND_WIDTH, true);
if gear <> nil then
begin
// Visual effect at position of resurrection
expl:= AddVisualGear(hwRound(gear^.X), hwRound(gear^.Y), vgtExplosion);
PlaySound(sndWarp);
RenderHealth(gear^.Hedgehog^);
if expl <> nil then
ScriptCall('onGearResurrect', gear^.uid, expl^.uid)
else
ScriptCall('onGearResurrect', gear^.uid);
gear^.State := gstWait;
end;
RecountTeamHealth(tempTeam);
end;
function CountLand(x, y, r, c: LongInt; mask, antimask: LongWord): 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 - 1) do
if (Land[y, i] and mask <> 0) and (Land[y, i] and antimask = 0) then
begin
inc(count);
if count = c then
begin
CountLand:= count;
exit
end;
end;
CountLand:= count;
end;
function isSteadyPosition(x, y, r, c: LongInt; mask: Longword): boolean;
var cnt, i: LongInt;
begin
cnt:= 0;
isSteadyPosition:= false;
if ((y and LAND_HEIGHT_MASK) = 0) and (x - r >= 0) and (x + r < LAND_WIDTH) then
begin
for i:= r - c + 2 to r do
begin
if (Land[y, x - i] and mask <> 0) then inc(cnt);
if (Land[y, x + i] and mask <> 0) then inc(cnt);
if cnt >= c then
begin
isSteadyPosition:= true;
exit
end;
end;
end;
end;
function NoGearsToAvoid(mX, mY: LongInt; rX, rY: LongInt): boolean;
var t: PGear;
begin
NoGearsToAvoid:= false;
t:= GearsList;
rX:= sqr(rX);
rY:= sqr(rY);
while t <> nil do
begin
if t^.Kind <= gtExplosives then
if not (hwSqr(int2hwFloat(mX) - t^.X) / rX + hwSqr(int2hwFloat(mY) - t^.Y) / rY > _1) then
exit;
t:= t^.NextGear
end;
NoGearsToAvoid:= true
end;
procedure FindPlace(var Gear: PGear; withFall: boolean; Left, Right: LongInt); inline;
begin
FindPlace(Gear, withFall, Left, Right, false);
end;
procedure FindPlace(var Gear: PGear; withFall: boolean; Left, Right: LongInt; skipProximity: boolean);
var x: LongInt;
y, sy, dir: LongInt;
ar: array[0..1023] of TPoint;
ar2: array[0..2047] of TPoint;
temp: TPoint;
cnt, cnt2: Longword;
delta: LongInt;
ignoreNearObjects, ignoreOverlap, tryAgain: boolean;
begin
ignoreNearObjects:= false; // try not skipping proximity at first
ignoreOverlap:= false; // this not only skips proximity, but allows overlapping objects (barrels, mines, hogs, crates). Saving it for a 3rd pass. With this active, winning AI Survival goes back to virtual impossibility
tryAgain:= true;
if WorldEdge <> weNone then
begin
Left:= max(Left, leftX + Gear^.Radius);
Right:= min(Right,rightX-Gear^.Radius)
end;
while tryAgain do
begin
delta:= LAND_WIDTH div 16;
cnt2:= 0;
repeat
if GetRandom(2) = 0 then dir:= -1 else dir:= 1;
x:= max(LAND_WIDTH div 2048, LongInt(GetRandom(Delta)));
if dir = 1 then x:= Left + x else x:= Right - x;
repeat
cnt:= 0;
y:= min(1024, topY) - Gear^.Radius shl 1;
while y < cWaterLine do
begin
repeat
inc(y, 2);
until (y >= cWaterLine) or
(ignoreOverLap and (CountLand(x, y, Gear^.Radius - 1, 1, $FF00, 0) = 0)) or
(not ignoreOverLap and (CountLand(x, y, Gear^.Radius - 1, 1, $FFFF, 0) = 0));
sy:= y;
repeat
inc(y);
until (y >= cWaterLine) or
(ignoreOverlap and
(CountLand(x, y, Gear^.Radius - 1, 1, $FFFF, 0) <> 0)) or
(not ignoreOverlap and
(CountLand(x, y, Gear^.Radius - 1, 1, lfLandMask, 0) <> 0));
if (y - sy > Gear^.Radius * 2) and (y < cWaterLine)
and (((Gear^.Kind = gtExplosives)
and (ignoreNearObjects or NoGearsToAvoid(x, y - Gear^.Radius, 60, 60))
and (isSteadyPosition(x, y+1, Gear^.Radius - 1, 3, $FFFF)
or (CountLand(x, y+1, Gear^.Radius - 1, Gear^.Radius+1, $FFFF, 0) > Gear^.Radius)
))
or
((Gear^.Kind <> gtExplosives)
and (ignoreNearObjects or NoGearsToAvoid(x, y - Gear^.Radius, 110, 110))
and (isSteadyPosition(x, y+1, Gear^.Radius - 1, 3, lfIce)
or (CountLand(x, y+1, Gear^.Radius - 1, Gear^.Radius+1, $FFFF, lfIce) <> 0)
))) 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, 10)
end;
if cnt > 0 then
begin
temp := ar[GetRandom(cnt)];
with temp do
begin
ar2[cnt2].x:= x;
ar2[cnt2].y:= y;
inc(cnt2)
end;
end;
inc(x, Delta*dir)
until ((dir = 1) and (x > Right)) or ((dir = -1) and (x < Left));
dec(Delta, 60)
until (cnt2 > 0) or (Delta < 70);
// if either of these has not been tried, do another pass
if (cnt2 = 0) and skipProximity and (not ignoreOverlap) then
tryAgain:= true
else tryAgain:= false;
if ignoreNearObjects then ignoreOverlap:= true;
ignoreNearObjects:= true;
end;
if cnt2 > 0 then
begin
temp := ar2[GetRandom(cnt2)];
with temp do
begin
Gear^.X:= int2hwFloat(x);
Gear^.Y:= int2hwFloat(y);
AddFileLog('Assigned Gear coordinates (' + inttostr(x) + ',' + inttostr(y) + ')');
end
end
else
begin
OutError('Can''t find place for Gear', false);
if Gear^.Kind = gtHedgehog then
begin
cnt:= 0;
if GameTicks = 0 then
begin
//AddFileLog('Trying to make a hole');
while (cnt < 1000) do
begin
inc(cnt);
x:= left+GetRandom(right-left-2*cHHRadius)+cHHRadius;
y:= topY+GetRandom(LAND_HEIGHT-topY-64)+48;
if NoGearsToAvoid(x, y, 100 div max(1,cnt div 100), 100 div max(1,cnt div 100)) then
begin
Gear^.State:= Gear^.State or gsttmpFlag;
Gear^.X:= int2hwFloat(x);
Gear^.Y:= int2hwFloat(y);
AddFileLog('Picked a spot for hog at coordinates (' + inttostr(hwRound(Gear^.X)) + ',' + inttostr(hwRound(Gear^.Y)) + ')');
cnt:= 2000
end
end;
end;
if cnt < 2000 then
begin
Gear^.Hedgehog^.Effects[heResurrectable] := 0;
DeleteGear(Gear);
Gear:= nil
end
end
else
begin
DeleteGear(Gear);
Gear:= nil
end
end
end;
function CheckGearNearImpl(Kind: TGearType; X, Y: hwFloat; rX, rY: LongInt; exclude: PGear): PGear;
var t: PGear;
width, bound, dX, dY: hwFloat;
isHit: Boolean;
i, j: LongWord;
begin
bound:= _1_5 * int2hwFloat(max(rX, rY));
rX:= sqr(rX);
rY:= sqr(rY);
width:= int2hwFloat(RightX - LeftX);
if (Kind = gtHedgehog) then
begin
for j:= 0 to Pred(TeamsCount) do
if TeamsArray[j]^.TeamHealth > 0 then // it's impossible for a team to have hogs in game and zero health right?
with TeamsArray[j]^ do
for i:= 0 to cMaxHHIndex do
with Hedgehogs[i] do
if (Gear <> nil) and (Gear <> exclude) then
begin
// code duplication - could throw into an inline function I guess
dX := X - Gear^.X;
dY := Y - Gear^.Y;
isHit := (hwAbs(dX) + hwAbs(dY) < bound)
and (not ((hwSqr(dX) / rX + hwSqr(dY) / rY) > _1));
if (not isHit) and (WorldEdge = weWrap) then
begin
if (hwAbs(dX - width) + hwAbs(dY) < bound)
and (not ((hwSqr(dX - width) / rX + hwSqr(dY) / rY) > _1)) then
isHit := true
else if (hwAbs(dX + width) + hwAbs(dY) < bound)
and (not ((hwSqr(dX + width) / rX + hwSqr(dY) / rY) > _1)) then
isHit := true
end;
if isHit then
begin
CheckGearNearImpl:= Gear;
exit;
end
end;
end
else
begin
t:= GearsList;
while t <> nil do
begin
if (t <> exclude) and (t^.Kind = Kind) then
begin
dX := X - t^.X;
dY := Y - t^.Y;
isHit := (hwAbs(dX) + hwAbs(dY) < bound)
and (not ((hwSqr(dX) / rX + hwSqr(dY) / rY) > _1));
if (not isHit) and (WorldEdge = weWrap) then
begin
if (hwAbs(dX - width) + hwAbs(dY) < bound)
and (not ((hwSqr(dX - width) / rX + hwSqr(dY) / rY) > _1)) then
isHit := true
else if (hwAbs(dX + width) + hwAbs(dY) < bound)
and (not ((hwSqr(dX + width) / rX + hwSqr(dY) / rY) > _1)) then
isHit := true
end;
if isHit then
begin
CheckGearNearImpl:= t;
exit;
end;
end;
t:= t^.NextGear
end
end;
CheckGearNearImpl:= nil
end;
function CheckGearNear(Kind: TGearType; X, Y: hwFloat; rX, rY: LongInt): PGear;
begin
CheckGearNear := CheckGearNearImpl(Kind, X, Y, rX, rY, nil);
end;
function CheckGearNear(Gear: PGear; Kind: TGearType; rX, rY: LongInt): PGear;
begin
CheckGearNear := CheckGearNearImpl(Kind, Gear^.X, Gear^.Y, rX, rY, Gear);
end;
procedure CheckCollision(Gear: PGear); inline;
begin
if (TestCollisionXwithGear(Gear, hwSign(Gear^.dX)) <> 0)
or (TestCollisionYwithGear(Gear, hwSign(Gear^.dY)) <> 0) then
Gear^.State := Gear^.State or gstCollision
else
Gear^.State := Gear^.State and (not gstCollision)
end;
procedure CheckCollisionWithLand(Gear: PGear); inline;
begin
if (TestCollisionX(Gear, hwSign(Gear^.dX)) <> 0)
or (TestCollisionY(Gear, hwSign(Gear^.dY)) <> 0) then
Gear^.State := Gear^.State or gstCollision
else
Gear^.State := Gear^.State and (not gstCollision)
end;
function MakeHedgehogsStep(Gear: PGear) : boolean;
begin
if TestCollisionXwithGear(Gear, hwSign(Gear^.dX)) <> 0 then if (TestCollisionYwithGear(Gear, -1) = 0) then
begin
Gear^.Y:= Gear^.Y - _1;
if TestCollisionXwithGear(Gear, hwSign(Gear^.dX)) <> 0 then if (TestCollisionYwithGear(Gear, -1) = 0) then
begin
Gear^.Y:= Gear^.Y - _1;
if TestCollisionXwithGear(Gear, hwSign(Gear^.dX)) <> 0 then if (TestCollisionYwithGear(Gear, -1) = 0) then
begin
Gear^.Y:= Gear^.Y - _1;
if TestCollisionXwithGear(Gear, hwSign(Gear^.dX)) <> 0 then if (TestCollisionYwithGear(Gear, -1) = 0) then
begin
Gear^.Y:= Gear^.Y - _1;
if TestCollisionXwithGear(Gear, hwSign(Gear^.dX)) <> 0 then if (TestCollisionYwithGear(Gear, -1) = 0) then
begin
Gear^.Y:= Gear^.Y - _1;
if TestCollisionXwithGear(Gear, hwSign(Gear^.dX)) <> 0 then if (TestCollisionYwithGear(Gear, -1) = 0) then
begin
Gear^.Y:= Gear^.Y - _1;
if TestCollisionXwithGear(Gear, hwSign(Gear^.dX)) <> 0 then
Gear^.Y:= Gear^.Y + _6
end else Gear^.Y:= Gear^.Y + _5 else
end else Gear^.Y:= Gear^.Y + _4 else
end else Gear^.Y:= Gear^.Y + _3 else
end else Gear^.Y:= Gear^.Y + _2 else
end else Gear^.Y:= Gear^.Y + _1
end;
if TestCollisionXwithGear(Gear, hwSign(Gear^.dX)) = 0 then
begin
Gear^.X:= Gear^.X + SignAs(_1, Gear^.dX);
MakeHedgehogsStep:= true
end else
MakeHedgehogsStep:= false;
if TestCollisionYwithGear(Gear, 1) = 0 then
begin
Gear^.Y:= Gear^.Y + _1;
if TestCollisionYwithGear(Gear, 1) = 0 then
begin
Gear^.Y:= Gear^.Y + _1;
if TestCollisionYwithGear(Gear, 1) = 0 then
begin
Gear^.Y:= Gear^.Y + _1;
if TestCollisionYwithGear(Gear, 1) = 0 then
begin
Gear^.Y:= Gear^.Y + _1;
if TestCollisionYwithGear(Gear, 1) = 0 then
begin
Gear^.Y:= Gear^.Y + _1;
if TestCollisionYwithGear(Gear, 1) = 0 then
begin
Gear^.Y:= Gear^.Y + _1;
if TestCollisionYwithGear(Gear, 1) = 0 then
begin
Gear^.Y:= Gear^.Y - _6;
Gear^.dY:= _0;
Gear^.State:= Gear^.State or gstMoving;
exit
end;
end
end
end
end
end
end;
end;
procedure ShotgunShot(Gear: PGear);
var t: PGear;
dmg, r, dist: LongInt;
dx, dy: hwFloat;
begin
Gear^.Radius:= cShotgunRadius;
t:= GearsList;
while t <> nil do
begin
case t^.Kind of
gtHedgehog,
gtMine,
gtSMine,
gtAirMine,
gtKnife,
gtCase,
gtTarget,
gtExplosives: begin
//addFileLog('ShotgunShot radius: ' + inttostr(Gear^.Radius) + ', t^.Radius = ' + inttostr(t^.Radius) + ', distance = ' + inttostr(dist) + ', dmg = ' + inttostr(dmg));
dmg:= 0;
r:= Gear^.Radius + t^.Radius;
dx:= Gear^.X-t^.X;
dx.isNegative:= false;
dy:= Gear^.Y-t^.Y;
dy.isNegative:= false;
if r-hwRound(dx+dy) > 0 then
begin
dist:= hwRound(Distance(dx, dy));
dmg:= ModifyDamage(min(r - dist, Gear^.Boom), t);
end;
if dmg > 0 then
begin
if (t^.Kind <> gtHedgehog) or (t^.Hedgehog^.Effects[heInvulnerable] = 0) then
ApplyDamage(t, Gear^.Hedgehog, dmg, dsBullet)
else
Gear^.State:= Gear^.State or gstWinner;
DeleteCI(t);
t^.dX:= t^.dX + Gear^.dX * dmg * _0_01 + SignAs(cHHKick, Gear^.dX);
t^.dY:= t^.dY + Gear^.dY * dmg * _0_01;
t^.State:= t^.State or gstMoving;
if t^.Kind = gtKnife then t^.State:= t^.State and (not gstCollision);
t^.Active:= true;
FollowGear:= t;
if t^.Kind = gtAirmine then
begin
t^.Tag:= 1;
t^.FlightTime:= 5000;
end
end
end;
gtGrave: begin
dmg:= 0;
r:= Gear^.Radius + t^.Radius;
dx:= Gear^.X-t^.X;
dx.isNegative:= false;
dy:= Gear^.Y-t^.Y;
dy.isNegative:= false;
if r-hwRound(dx+dy) > 0 then
begin
dist:= hwRound(Distance(dx, dy));
dmg:= ModifyDamage(min(r - dist, Gear^.Boom), t);
end;
if dmg > 0 then
begin
t^.dY:= - _0_1;
t^.Active:= true
end
end;
end;
t:= t^.NextGear
end;
if (GameFlags and gfSolidLand) = 0 then
DrawExplosion(hwRound(Gear^.X), hwRound(Gear^.Y), cShotgunRadius)
end;
// Returns true if the given hog gear can use the tardis
function CanUseTardis(HHGear: PGear): boolean;
var usable: boolean;
i, j, cnt: LongInt;
HH: PHedgehog;
begin
(*
Conditions for not activating.
1. Hog is last of his clan
2. Sudden Death is in play
3. Hog is a king
*)
usable:= true;
HH:= HHGear^.Hedgehog;
if HHGear <> nil then
if (HHGear = nil) or (HH^.King) or (SuddenDeathActive) then
usable:= false;
cnt:= 0;
for j:= 0 to Pred(HH^.Team^.Clan^.TeamsNumber) do
for i:= 0 to Pred(HH^.Team^.Clan^.Teams[j]^.HedgehogsNumber) do
if (HH^.Team^.Clan^.Teams[j]^.Hedgehogs[i].Gear <> nil)
and ((HH^.Team^.Clan^.Teams[j]^.Hedgehogs[i].Gear^.State and gstDrowning) = 0)
and (HH^.Team^.Clan^.Teams[j]^.Hedgehogs[i].Gear^.Health > HH^.Team^.Clan^.Teams[j]^.Hedgehogs[i].Gear^.Damage) then
inc(cnt);
if (cnt < 2) then
usable:= false;
CanUseTardis:= usable;
end;
procedure AmmoShoveImpl(Ammo: PGear; Damage, Power: LongInt; collisions: PGearArray);
var t: PGearArray;
Gear: PGear;
i, j, tmpDmg: LongInt;
VGear: PVisualGear;
begin
t:= collisions;
// Just to avoid hogs on rope dodging fire.
if (CurAmmoGear <> nil) and ((CurAmmoGear^.Kind = gtRope) or (CurAmmoGear^.Kind = gtJetpack) or (CurAmmoGear^.Kind = gtBirdy))
and (CurrentHedgehog^.Gear <> nil) and (CurrentHedgehog^.Gear^.CollisionIndex = -1)
and (sqr(hwRound(Ammo^.X) - hwRound(CurrentHedgehog^.Gear^.X)) + sqr(hwRound(Ammo^.Y) - hwRound(CurrentHedgehog^.Gear^.Y)) <= sqr(cHHRadius + Ammo^.Radius)) then
begin
t^.ar[t^.Count]:= CurrentHedgehog^.Gear;
inc(t^.Count)
end;
i:= t^.Count;
if (Ammo^.Kind = gtFlame) and (i > 0) then
Ammo^.Health:= 0;
while i > 0 do
begin
dec(i);
Gear:= t^.ar[i];
if (Ammo^.Kind in [gtDEagleShot, gtSniperRifleShot, gtMinigunBullet,
gtFirePunch, gtKamikaze, gtWhip, gtShover])
and (((Ammo^.Data <> nil) and (PGear(Ammo^.Data) = Gear))
or (not UpdateHitOrder(Gear, Ammo^.WDTimer))) then
continue;
if ((Ammo^.Kind = gtFlame) or (Ammo^.Kind = gtBlowTorch)) and
(Gear^.Kind = gtHedgehog) and (Gear^.Hedgehog^.Effects[heFrozen] > 255) then
Gear^.Hedgehog^.Effects[heFrozen]:= max(255,Gear^.Hedgehog^.Effects[heFrozen]-10000);
tmpDmg:= ModifyDamage(Damage, Gear);
if (Gear^.State and gstNoDamage) = 0 then
begin
if (Gear^.Kind = gtHedgehog) and (Ammo^.State and gsttmpFlag <> 0) and (Ammo^.Kind = gtShover) then
Gear^.FlightTime:= 1;
case Gear^.Kind of
gtHedgehog,
gtMine,
gtAirMine,
gtSMine,
gtKnife,
gtTarget,
gtCase,
gtExplosives:
begin
if (Ammo^.Kind in [gtFirePunch, gtKamikaze]) and (Gear^.Kind <> gtSMine) then
PlaySound(sndFirePunchHit);
if Ammo^.Kind in [gtDEagleShot, gtSniperRifleShot, gtMinigunBullet] then
begin
VGear := AddVisualGear(t^.cX[i], t^.cY[i], vgtBulletHit);
if VGear <> nil then
VGear^.Angle := DxDy2Angle(-Ammo^.dX, Ammo^.dY);
end;
if (Ammo^.Kind = gtDrill) then
begin
Ammo^.Timer:= 0;
exit;
end;
if (Gear^.Kind <> gtHedgehog) or (Gear^.Hedgehog^.Effects[heInvulnerable] = 0) then
begin
if (Ammo^.Kind = gtKnife) and (tmpDmg > 0) then
for j:= 1 to max(1,min(3,tmpDmg div 5)) do
begin
VGear:= AddVisualGear(
t^.cX[i] - ((t^.cX[i] - hwround(Gear^.X)) div 2),
t^.cY[i] - ((t^.cY[i] - hwround(Gear^.Y)) div 2),
vgtStraightShot);
if VGear <> nil then
with VGear^ do
begin
Tint:= $FFCC00FF;
Angle:= random(360);
dx:= 0.0005 * (random(100));
dy:= 0.0005 * (random(100));
if random(2) = 0 then
dx := -dx;
if random(2) = 0 then
dy := -dy;
FrameTicks:= 600+random(200);
State:= ord(sprStar)
end
end;
ApplyDamage(Gear, Ammo^.Hedgehog, tmpDmg, dsShove);
if Gear^.Kind = gtAirmine then
begin
Gear^.Tag:= 1;
Gear^.FlightTime:= 5000;
end
end
else
Gear^.State:= Gear^.State or gstWinner;
if (Gear^.Kind = gtExplosives) and (Ammo^.Kind = gtBlowtorch) then
begin
if (Ammo^.Hedgehog^.Gear <> nil) then
Ammo^.Hedgehog^.Gear^.State:= Ammo^.Hedgehog^.Gear^.State and (not gstNotKickable);
ApplyDamage(Gear, Ammo^.Hedgehog, tmpDmg * 100, dsExplosion); // crank up damage for explosives + blowtorch
end;
if (Gear^.Kind = gtHedgehog) and (Gear^.Hedgehog^.King or (Gear^.Hedgehog^.Effects[heFrozen] > 0)) then
begin
Gear^.dX:= Ammo^.dX * Power * _0_005;
Gear^.dY:= Ammo^.dY * Power * _0_005
end
else if ((Ammo^.Kind <> gtFlame) or (Gear^.Kind = gtHedgehog)) and (Power <> 0) then
begin
Gear^.dX:= Ammo^.dX * Power * _0_01;
Gear^.dY:= Ammo^.dY * Power * _0_01
end;
if (not isZero(Gear^.dX)) or (not isZero(Gear^.dY)) then
begin
Gear^.Active:= true;
DeleteCI(Gear);
Gear^.State:= Gear^.State or gstMoving;
if Gear^.Kind = gtKnife then Gear^.State:= Gear^.State and (not gstCollision);
// move the gear upwards a bit to throw it over tiny obstacles at start
if TestCollisionXwithGear(Gear, hwSign(Gear^.dX)) <> 0 then
begin
if (TestCollisionXwithXYShift(Gear, _0, -3, hwSign(Gear^.dX)) = 0) and
(TestCollisionYwithGear(Gear, -1) = 0) then
Gear^.Y:= Gear^.Y - _1;
if (TestCollisionXwithXYShift(Gear, _0, -2, hwSign(Gear^.dX)) = 0) and
(TestCollisionYwithGear(Gear, -1) = 0) then
Gear^.Y:= Gear^.Y - _1;
if (TestCollisionXwithXYShift(Gear, _0, -1, hwSign(Gear^.dX)) = 0) and
(TestCollisionYwithGear(Gear, -1) = 0) then
Gear^.Y:= Gear^.Y - _1;
end
end;
if (Ammo^.Kind <> gtFlame) or ((Ammo^.State and gsttmpFlag) = 0) then
FollowGear:= Gear
end;
end
end;
end;
if i <> 0 then
SetAllToActive
end;
procedure AmmoShoveLine(Ammo: PGear; Damage, Power: LongInt; oX, oY, tX, tY: hwFloat);
var t: PGearArray;
begin
t:= CheckAllGearsLineCollision(Ammo, oX, oY, tX, tY);
AmmoShoveImpl(Ammo, Damage, Power, t);
end;
procedure AmmoShove(Ammo: PGear; Damage, Power: LongInt);
begin
AmmoShoveImpl(Ammo, Damage, Power,
CheckGearsCollision(Ammo));
end;
procedure AmmoShoveCache(Ammo: PGear; Damage, Power: LongInt);
begin
AmmoShoveImpl(Ammo, Damage, Power,
CheckCacheCollision(Ammo));
end;
function CountGears(Kind: TGearType): Longword;
var t: PGear;
count: Longword = 0;
begin
t:= GearsList;
while t <> nil do
begin
if t^.Kind = Kind then
inc(count);
t:= t^.NextGear
end;
CountGears:= count;
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; inline;
begin
SetAllHHToActive(true)
end;
procedure SetAllHHToActive(Ice: boolean);
var t: PGear;
begin
AllInactive:= false;
t:= GearsList;
while t <> nil do
begin
if (t^.Kind = gtHedgehog) or (t^.Kind = gtExplosives) then
begin
if (t^.Kind = gtHedgehog) and Ice then CheckIce(t);
t^.Active:= true
end;
t:= t^.NextGear
end
end;
var GearsNearArray : TPGearArray;
function GearsNear(X, Y: hwFloat; Kind: TGearType; r: LongInt): PGearArrayS;
var
t: PGear;
s: Longword;
xc, xc_left, xc_right, yc: hwFloat;
begin
r:= r*r;
s:= 0;
SetLength(GearsNearArray, s);
t := GearsList;
while t <> nil do
begin
xc:= (X - t^.X)*(X - t^.X);
xc_left:= ((X - int2hwFloat(RightX-LeftX)) - t^.X)*((X - int2hwFloat(RightX-LeftX)) - t^.X);
xc_right := ((X + int2hwFloat(RightX-LeftX)) - t^.X)*((X + int2hwFloat(RightX-LeftX)) - t^.X);
yc:= (Y - t^.Y)*(Y - t^.Y);
if (t^.Kind = Kind)
and ((xc + yc < int2hwFloat(r))
or ((WorldEdge = weWrap) and
((xc_left + yc < int2hwFloat(r)) or
(xc_right + yc < int2hwFloat(r))))) then
begin
inc(s);
SetLength(GearsNearArray, s);
GearsNearArray[s - 1] := t;
end;
t := t^.NextGear;
end;
GearsNear.size:= s;
GearsNear.ar:= @GearsNearArray
end;
function SpawnBoxOfSmth: PGear;
var t, aTot, uTot, a, h: LongInt;
i: TAmmoType;
begin
SpawnBoxOfSmth:= nil;
if (PlacingHogs) or (PlacingKings) or
(cCaseFactor = 0)
or (CountGears(gtCase) >= cMaxCaseDrops)
or (GetRandom(cCaseFactor) <> 0) then
exit;
FollowGear:= nil;
aTot:= 0;
uTot:= 0;
for i:= Low(TAmmoType) to High(TAmmoType) do
if (Ammoz[i].Ammo.Propz and ammoprop_Utility) = 0 then
inc(aTot, Ammoz[i].Probability)
else
inc(uTot, Ammoz[i].Probability);
t:=0;
a:=aTot;
h:= 1;
if (aTot+uTot) <> 0 then
if ((GameFlags and gfInvulnerable) = 0) then
begin
h:= cHealthCaseProb * 100;
t:= GetRandom(10000);
a:= (10000-h)*aTot div (aTot+uTot)
end
else
begin
t:= GetRandom(aTot+uTot);
h:= 0
end;
if t<h then
begin
FollowGear:= AddGear(0, 0, gtCase, 0, _0, _0, 0);
FollowGear^.RenderHealth:= true;
FollowGear^.Health:= cHealthCaseAmount;
FollowGear^.Pos:= posCaseHealth;
// health crate is smaller than the other crates
FollowGear^.Radius := cCaseHealthRadius;
AddCaption(GetEventString(eidNewHealthPack), capcolDefault, capgrpAmmoInfo);
end
else if (t<a+h) then
begin
t:= aTot;
if (t > 0) then
begin
FollowGear:= AddGear(0, 0, gtCase, 0, _0, _0, 0);
t:= GetRandom(t);
i:= Low(TAmmoType);
FollowGear^.Pos:= posCaseAmmo;
FollowGear^.AmmoType:= i;
AddCaption(GetEventString(eidNewAmmoPack), capcolDefault, capgrpAmmoInfo);
end
end
else
begin
t:= uTot;
if (t > 0) then
begin
FollowGear:= AddGear(0, 0, gtCase, 0, _0, _0, 0);
t:= GetRandom(t);
i:= Low(TAmmoType);
FollowGear^.Pos:= posCaseUtility;
FollowGear^.AmmoType:= i;
AddCaption(GetEventString(eidNewUtilityPack), capcolDefault, capgrpAmmoInfo);
end
end;
// handles case of no ammo or utility crates - considered also placing booleans in uAmmos and altering probabilities
if (FollowGear <> nil) then
begin
FindPlace(FollowGear, true, 0, LAND_WIDTH);
PlayBoxSpawnTaunt(FollowGear);
SpawnBoxOfSmth:= FollowGear;
end
end;
procedure PlayBoxSpawnTaunt(Gear: PGear);
const
// Max. distance between hog and crate for sndThisOneIsMine taunt
ThisOneIsMineDistance : LongInt = 130;
var d, minD: LongInt;
gi, closestHog: PGear;
begin
// Taunt
if (Gear <> nil) then
begin
// Look for hog closest to the crate (on the X axis)
gi := GearsList;
minD := LAND_WIDTH + ThisOneIsMineDistance + 1;
closestHog:= nil;
while gi <> nil do
begin
if (gi^.Kind = gtHedgehog) then
begin
// Y axis is ignored to simplify calculations
d := hwRound(hwAbs(gi^.X - Gear^.X));
if d < minD then
begin
minD := d;
closestHog:= gi;
end;
end;
gi := gi^.NextGear;
end;
// Is closest hog close enough to the crate (on the X axis)?
if (closestHog <> nil) and (closestHog^.Hedgehog <> nil) and (minD <= ThisOneIsMineDistance) then
// If so, there's a chance for a special taunt
if random(3) > 0 then
AddVoice(sndThisOneIsMine, closestHog^.Hedgehog^.Team^.voicepack)
else
AddVoice(sndReinforce, CurrentTeam^.voicepack)
else
// Default crate drop taunt
AddVoice(sndReinforce, CurrentTeam^.voicepack);
end;
end;
function GetAmmo(Hedgehog: PHedgehog): TAmmoType;
var t, aTot: LongInt;
i: TAmmoType;
begin
Hedgehog:= Hedgehog; // avoid hint
aTot:= 0;
for i:= Low(TAmmoType) to High(TAmmoType) do
if (Ammoz[i].Ammo.Propz and ammoprop_Utility) = 0 then
inc(aTot, Ammoz[i].Probability);
t:= aTot;
i:= Low(TAmmoType);
if (t > 0) then
begin
t:= GetRandom(t);
while t >= 0 do
begin
inc(i);
if (Ammoz[i].Ammo.Propz and ammoprop_Utility) = 0 then
dec(t, Ammoz[i].Probability)
end
end;
GetAmmo:= i
end;
function GetUtility(Hedgehog: PHedgehog): TAmmoType;
var t, uTot: LongInt;
i: TAmmoType;
begin
uTot:= 0;
for i:= Low(TAmmoType) to High(TAmmoType) do
if ((Ammoz[i].Ammo.Propz and ammoprop_Utility) <> 0)
and ((Hedgehog^.Team^.HedgehogsNumber > 1) or (Ammoz[i].Ammo.AmmoType <> amSwitch)) then
inc(uTot, Ammoz[i].Probability);
t:= uTot;
i:= Low(TAmmoType);
if (t > 0) then
begin
t:= GetRandom(t);
while t >= 0 do
begin
inc(i);
if ((Ammoz[i].Ammo.Propz and ammoprop_Utility) <> 0) and ((Hedgehog^.Team^.HedgehogsNumber > 1)
or (Ammoz[i].Ammo.AmmoType <> amSwitch)) then
dec(t, Ammoz[i].Probability)
end
end;
GetUtility:= i
end;
(*
Intended to check Gear X/Y against the map left/right edges and apply one of the world modes
* Normal - infinite world, do nothing
* Wrap (entering left edge exits at same height on right edge)
* Bounce (striking edge is treated as a 100% elasticity bounce)
* From the depths (same as from sky, but from sea, with submersible flag set)
Trying to make the checks a little broader than on first pass to catch things that don't move normally.
*)
function WorldWrap(var Gear: PGear): boolean;
var bounced: boolean;
begin
WorldWrap:= false;
if WorldEdge = weNone then exit(false);
if (hwRound(Gear^.X) < leftX) or
(hwRound(Gear^.X) > rightX) then
begin
if WorldEdge = weWrap then
begin
if (hwRound(Gear^.X) < leftX) then
Gear^.X:= Gear^.X + int2hwfloat(rightX - leftX)
else Gear^.X:= Gear^.X - int2hwfloat(rightX - leftX);
LeftImpactTimer:= 150;
RightImpactTimer:= 150;
WorldWrap:= true;
end
else if WorldEdge = weBounce then
begin
bounced:= false;
// Bounce left
if (hwRound(Gear^.X) - Gear^.Radius < leftX) and (((hwSign(Gear^.dX) = -1) and (not isZero(Gear^.dX))) or (Gear^.Kind = gtHedgehog)) then
begin
LeftImpactTimer:= 333;
// Set X coordinate to bounce edge, unless the gear spawned inside the bounce edge before
if (Gear^.State and gstInBounceEdge) = 0 then
Gear^.X:= int2hwfloat(leftX + Gear^.Radius);
// Invert horizontal speed
Gear^.dX.isNegative:= false;
bounced:= true;
end
// Bounce right
else if (hwRound(Gear^.X) + Gear^.Radius > rightX) and (((hwSign(Gear^.dX) = 1) and (not isZero(Gear^.dX))) or (Gear^.Kind = gtHedgehog)) then
begin
RightImpactTimer:= 333;
// Set X coordinate to bounce edge, unless the gear spawned inside the bounce edge before
if (Gear^.State and gstInBounceEdge) = 0 then
Gear^.X:= int2hwfloat(rightX - Gear^.Radius);
// Invert horizontal speed
Gear^.dX.isNegative:= true;
bounced:= true;
end;
// Clear gstInBounceEdge when gear is no longer inside a bounce edge area
if ((Gear^.State and gstInBounceEdge) <> 0) and (hwRound(Gear^.X) - Gear^.Radius >= leftX) and (hwRound(Gear^.X) + Gear^.Radius <= rightX) then
Gear^.State:= Gear^.State and (not gstInBounceEdge);
if (bounced) then
begin
WorldWrap:= true;
if (Gear^.dX.QWordValue > _0_001.QWordValue) then
AddBounceEffectForGear(Gear);
end;
end
else
WorldWrap:= true;
end;
end;
(*
Applies wrap-around logic for the target of homing gears.
In wrap-around world edge, the shortest way may to the target might
be across the border, so the X value of the target would lead the
gear to the wrong direction across the whole map. This procedure
changes the target X in this case.
This function must be called after the gear passed through
the wrap-around world edge (WorldWrap returned true).
No-op for other world edges.
Returns true if target has been changed.
*)
function HomingWrap(var Gear: PGear): boolean;
var dist_center, dist_right, dist_left: hwFloat;
begin
if WorldEdge = weWrap then
begin
HomingWrap:= false;
// We just check the same target 3 times:
// 1) in current section (no change)
// 2) clone in the right section
// 3) clone in the left section
// The gear will go for the target with the shortest distance to the gear.
// For simplicity, we only check distance on the X axis.
dist_center:= hwAbs(Gear^.X - int2hwFloat(Gear^.Target.X));
dist_right:= hwAbs(Gear^.X - int2hwFloat(Gear^.Target.X + (RightX-LeftX)));
dist_left:= hwAbs(Gear^.X - int2hwFloat(Gear^.Target.X - (RightX-LeftX)));
if (dist_left < dist_right) and (dist_left < dist_center) then
begin
dec(Gear^.Target.X, RightX-LeftX);
HomingWrap:= true;
end
else if (dist_right < dist_left) and (dist_right < dist_center) then
begin
inc(Gear^.Target.X, RightX-LeftX);
HomingWrap:= true;
end;
end;
end;
// Add an audiovisual bounce effect for gear after it bounced from bouncy material.
// Graphical effect is based on speed.
procedure AddBounceEffectForGear(Gear: PGear);
begin
AddBounceEffectForGear(Gear, hwFloat2Float(Gear^.Density * hwAbs(Gear^.dY) + hwAbs(Gear^.dX)) / 1.5);
end;
// Same as above, but can specify the size of bounce image with imageScale manually.
procedure AddBounceEffectForGear(Gear: PGear; imageScale: Single);
var boing: PVisualGear;
begin
if (Gear^.Density < _0_01) or (Gear^.Radius < 2) then
exit;
boing:= AddVisualGear(hwRound(Gear^.X), hwRound(Gear^.Y), vgtStraightShot, 0, false, 1);
if boing <> nil then
with boing^ do
begin
Angle:= random(360);
dx:= 0;
dy:= 0;
FrameTicks:= 200;
Scale:= imageScale;
State:= ord(sprBoing)
end;
PlaySound(sndMelonImpact, true)
end;
function IsHogFacingLeft(Gear: PGear): boolean;
var sign: LongInt;
begin
sign:= hwSign(Gear^.dX);
if (CurAmmoGear <> nil) and (CurAmmoGear^.Kind = gtParachute) then
IsHogFacingLeft:= CurAmmoGear^.Tag = -1
else if ((Gear^.State and gstHHHJump) <> 0) and (Gear^.Hedgehog^.Effects[heArtillery] = 0) then
IsHogFacingLeft:= sign > 0
else
IsHogFacingLeft:= sign < 0;
end;
function IsHogLocal(HH: PHedgehog): boolean;
begin
IsHogLocal:= (not (HH^.Team^.ExtDriven or (HH^.BotLevel > 0))) or (HH^.Team^.Clan^.LocalOrAlly) or (GameType = gmtDemo);
end;
end.