hedgewars/uAmmos.pas
author unc0rr
Tue, 16 Jan 2007 22:13:58 +0000
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permissions -rw-r--r--
Another float debug
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unit uAmmos;
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interface
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uses uConsts;
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{$INCLUDE options.inc}
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type PHHAmmo = ^THHAmmo;
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     THHAmmo = array[0..cMaxSlotIndex, 0..cMaxSlotAmmoIndex] of TAmmo;
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procedure AddAmmoStore(s: shortstring);
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procedure AssignStores;
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procedure AddAmmo(Hedgehog: pointer; ammo: TAmmoType);
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function  HHHasAmmo(Hedgehog: pointer; Ammo: TAmmoType): boolean;
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procedure PackAmmo(Ammo: PHHAmmo; Slot: integer);
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procedure OnUsedAmmo(Ammo: PHHAmmo);
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implementation
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uses uMisc, uTeams, uGears;
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type TAmmoCounts = array[TAmmoType] of Longword;
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var StoresList: array[0..Pred(cMaxHHs)] of PHHAmmo;
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    StoreCnt: Longword = 0;
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procedure FillAmmoStore(Ammo: PHHAmmo; var cnts: TAmmoCounts);
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var mi: array[0..cMaxSlotIndex] of byte;
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    a: TAmmoType;
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begin
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FillChar(mi, sizeof(mi), 0);
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FillChar(Ammo^, sizeof(Ammo^), 0);
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for a:= Low(TAmmoType) to High(TAmmoType) do
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    if cnts[a] > 0 then
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       begin
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       TryDo(mi[Ammoz[a].Slot] <= cMaxSlotAmmoIndex, 'Ammo slot overflow', true);
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       Ammo[Ammoz[a].Slot, mi[Ammoz[a].Slot]]:= Ammoz[a].Ammo;
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       Ammo[Ammoz[a].Slot, mi[Ammoz[a].Slot]].Count:= cnts[a];
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       inc(mi[Ammoz[a].Slot])
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       end
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end;
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procedure AddAmmoStore(s: shortstring);
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var cnt: Longword;
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    a: TAmmoType;
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    ammos: TAmmoCounts;
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begin
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TryDo(byte(s[0]) = byte(ord(High(TAmmoType)) + 1), 'Invalid ammo scheme (incompatible frontend)', true);
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inc(StoreCnt);
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TryDo(StoreCnt <= cMaxHHs, 'Ammo stores overflow', true);
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new(StoresList[Pred(StoreCnt)]);
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for a:= Low(TAmmoType) to High(TAmmoType) do
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    begin
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    cnt:= byte(s[ord(a) + 1]) - byte('0');
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    if cnt = 9 then cnt:= AMMO_INFINITE;
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    ammos[a]:= cnt
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    end;
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FillAmmoStore(StoresList[Pred(StoreCnt)], ammos)
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end;
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function GetAmmoByNum(num: Longword): PHHAmmo;
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begin
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TryDo(num < StoreCnt, 'Invalid store number', true);
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Result:= StoresList[num]
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end;
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procedure AssignStores;
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var tteam: PTeam;
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    i: Longword;
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begin
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tteam:= TeamsList;
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while tteam <> nil do
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      begin
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      for i:= 0 to cMaxHHIndex do
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          if tteam.Hedgehogs[i].Gear <> nil then
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             tteam.Hedgehogs[i].Ammo:= GetAmmoByNum(tteam.Hedgehogs[i].AmmoStore);
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      tteam:= tteam.Next
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      end
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end;
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procedure AddAmmo(Hedgehog: pointer; ammo: TAmmoType);
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var ammos: TAmmoCounts;
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    slot, ami: integer;
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    hhammo: PHHAmmo;
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begin
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FillChar(ammos, sizeof(ammos), 0);
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hhammo:= PHedgehog(Hedgehog).Ammo;
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for slot:= 0 to cMaxSlotIndex do
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    for ami:= 0 to cMaxSlotAmmoIndex do
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        if hhammo[slot, ami].Count > 0 then
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           ammos[hhammo[slot, ami].AmmoType]:= hhammo[slot, ami].Count;
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if ammos[ammo] <> AMMO_INFINITE then inc(ammos[ammo]);
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FillAmmoStore(hhammo, ammos)
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end;
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procedure PackAmmo(Ammo: PHHAmmo; Slot: integer);
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var ami: integer;
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    b: boolean;
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begin
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    repeat
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      b:= false;
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      ami:= 0;
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      while (not b) and (ami < cMaxSlotAmmoIndex) do
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          if (Ammo[Slot, ami].Count = 0)
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             and (Ammo[Slot, ami + 1].Count > 0) then b:= true
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                                                 else inc(ami);
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      if b then // there's a free item in ammo stack
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         begin
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         Ammo[Slot, ami]:= Ammo[Slot, ami + 1];
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         Ammo[Slot, ami + 1].Count:= 0
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         end;
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    until not b;
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end;
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procedure OnUsedAmmo(Ammo: PHHAmmo);
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var s, a: Longword;
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begin
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with CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog] do
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     begin
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     if CurAmmoGear = nil then begin s:= CurSlot; a:= CurAmmo end
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                          else begin s:= AltSlot; a:= AltAmmo end;
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     with Ammo[s, a] do
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          if Count <> AMMO_INFINITE then
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             begin
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             dec(Count);
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             if Count = 0 then PackAmmo(Ammo, CurSlot)
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             end
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     end
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end;
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function  HHHasAmmo(Hedgehog: pointer; Ammo: TAmmoType): boolean;
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var slot, ami: integer;
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begin
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Slot:= Ammoz[Ammo].Slot;
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ami:= 0;
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Result:= false;
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while (not Result) and (ami <= cMaxSlotAmmoIndex) do
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      begin
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      with PHedgehog(Hedgehog).Ammo[Slot, ami] do
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            if (AmmoType = Ammo) and (Count > 0) then Result:= true;
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      inc(ami)
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      end
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end;
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end.