(*
* Hedgewars, a worms-like game
* Copyright (c) 2006-2008 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
*)
unit uAmmos;
interface
uses uConsts, uTeams;
{$INCLUDE options.inc}
procedure AddAmmoStore(s: shortstring);
procedure AssignStores;
procedure AddAmmo(var Hedgehog: THedgehog; ammo: TAmmoType);
function HHHasAmmo(var Hedgehog: THedgehog; Ammo: TAmmoType): boolean;
procedure PackAmmo(Ammo: PHHAmmo; Slot: LongInt);
procedure OnUsedAmmo(var Hedgehog: THedgehog);
procedure ApplyAmmoChanges(var Hedgehog: THedgehog);
procedure SwitchNotHoldedAmmo(var Hedgehog: THedgehog);
procedure SetWeapon(weap: TAmmoType);
implementation
uses uMisc, uGears, uWorld, uLocale, uConsole;
type TAmmoCounts = array[TAmmoType] of Longword;
var StoresList: array[0..Pred(cMaxHHs)] of PHHAmmo;
StoreCnt: Longword = 0;
procedure FillAmmoStore(Ammo: PHHAmmo; var cnts: TAmmoCounts);
var mi: array[0..cMaxSlotIndex] of byte;
a: TAmmoType;
begin
FillChar(mi, sizeof(mi), 0);
FillChar(Ammo^, sizeof(Ammo^), 0);
for a:= Low(TAmmoType) to High(TAmmoType) do
if cnts[a] > 0 then
begin
TryDo(mi[Ammoz[a].Slot] <= cMaxSlotAmmoIndex, 'Ammo slot overflow', true);
Ammo^[Ammoz[a].Slot, mi[Ammoz[a].Slot]]:= Ammoz[a].Ammo;
Ammo^[Ammoz[a].Slot, mi[Ammoz[a].Slot]].Count:= cnts[a];
inc(mi[Ammoz[a].Slot])
end
end;
procedure AddAmmoStore(s: shortstring);
var cnt: Longword;
a: TAmmoType;
ammos: TAmmoCounts;
begin
TryDo(byte(s[0]) = byte(ord(High(TAmmoType)) + 1), 'Invalid ammo scheme (incompatible frontend)', true);
inc(StoreCnt);
TryDo(StoreCnt <= cMaxHHs, 'Ammo stores overflow', true);
new(StoresList[Pred(StoreCnt)]);
for a:= Low(TAmmoType) to High(TAmmoType) do
begin
cnt:= byte(s[ord(a) + 1]) - byte('0');
if cnt = 9 then cnt:= AMMO_INFINITE;
ammos[a]:= cnt
end;
FillAmmoStore(StoresList[Pred(StoreCnt)], ammos)
end;
function GetAmmoByNum(num: Longword): PHHAmmo;
begin
TryDo(num < StoreCnt, 'Invalid store number', true);
exit(StoresList[num])
end;
procedure AssignStores;
var t: LongInt;
i: Longword;
begin
for t:= 0 to Pred(TeamsCount) do
with TeamsArray[t]^ do
begin
for i:= 0 to cMaxHHIndex do
if Hedgehogs[i].Gear <> nil then
Hedgehogs[i].Ammo:= GetAmmoByNum(Hedgehogs[i].AmmoStore);
end
end;
procedure AddAmmo(var Hedgehog: THedgehog; ammo: TAmmoType);
var ammos: TAmmoCounts;
slot, ami: LongInt;
hhammo: PHHAmmo;
begin
FillChar(ammos, sizeof(ammos), 0);
hhammo:= Hedgehog.Ammo;
for slot:= 0 to cMaxSlotIndex do
for ami:= 0 to cMaxSlotAmmoIndex do
if hhammo^[slot, ami].Count > 0 then
ammos[hhammo^[slot, ami].AmmoType]:= hhammo^[slot, ami].Count;
if ammos[ammo] <> AMMO_INFINITE then
begin
inc(ammos[ammo], Ammoz[ammo].NumberInCase);
if ammos[ammo] > AMMO_INFINITE then ammos[ammo]:= AMMO_INFINITE
end;
FillAmmoStore(hhammo, ammos)
end;
procedure PackAmmo(Ammo: PHHAmmo; Slot: LongInt);
var ami: LongInt;
b: boolean;
begin
repeat
b:= false;
ami:= 0;
while (not b) and (ami < cMaxSlotAmmoIndex) do
if (Ammo^[Slot, ami].Count = 0)
and (Ammo^[Slot, ami + 1].Count > 0) then b:= true
else inc(ami);
if b then // there's a free item in ammo stack
begin
Ammo^[Slot, ami]:= Ammo^[Slot, ami + 1];
Ammo^[Slot, ami + 1].Count:= 0
end;
until not b;
end;
procedure OnUsedAmmo(var Hedgehog: THedgehog);
begin
with Hedgehog do
begin
with Ammo^[CurSlot, CurAmmo] do
if Count <> AMMO_INFINITE then
begin
dec(Count);
if Count = 0 then
begin
PackAmmo(Ammo, CurSlot);
SwitchNotHoldedAmmo(Hedgehog)
end
end
end
end;
function HHHasAmmo(var Hedgehog: THedgehog; Ammo: TAmmoType): boolean;
var slot, ami: LongInt;
begin
Slot:= Ammoz[Ammo].Slot;
ami:= 0;
while (ami <= cMaxSlotAmmoIndex) do
begin
with Hedgehog.Ammo^[Slot, ami] do
if (AmmoType = Ammo) then
exit((Count > 0) and (Hedgehog.Team^.Clan^.TurnNumber > Ammoz[AmmoType].SkipTurns));
inc(ami)
end;
HHHasAmmo:= false
end;
procedure ApplyAmmoChanges(var Hedgehog: THedgehog);
var s: shortstring;
begin
TargetPoint.X:= NoPointX;
with Hedgehog do
begin
if (Ammo^[CurSlot, CurAmmo].Count = 0) then
begin
CurAmmo:= 0;
CurSlot:= 0;
while (CurSlot <= cMaxSlotIndex) and (Ammo^[CurSlot, CurAmmo].Count = 0) do inc(CurSlot)
end;
with Ammo^[CurSlot, CurAmmo] do
begin
CurMinAngle:= Ammoz[AmmoType].minAngle;
if Ammoz[AmmoType].maxAngle <> 0 then CurMaxAngle:= Ammoz[AmmoType].maxAngle
else CurMaxAngle:= cMaxAngle;
with Hedgehog.Gear^ do
begin
if Angle < CurMinAngle then Angle:= CurMinAngle;
if Angle > CurMaxAngle then Angle:= CurMaxAngle;
end;
s:= trammo[Ammoz[AmmoType].NameId];
if Count <> AMMO_INFINITE then
s:= s + ' (' + IntToStr(Count) + ')';
if (Propz and ammoprop_Timerable) <> 0 then
s:= s + ', ' + inttostr(Timer div 1000) + ' ' + trammo[sidSeconds];
AddCaption(s, Team^.Clan^.Color, capgrpAmmoinfo);
if (Propz and ammoprop_NeedTarget) <> 0
then begin
Gear^.State:= Gear^.State or gstHHChooseTarget;
isCursorVisible:= true
end else begin
Gear^.State:= Gear^.State and not gstHHChooseTarget;
isCursorVisible:= false
end;
ShowCrosshair:= (Propz and ammoprop_NoCrosshair) = 0
end
end
end;
procedure SwitchNotHoldedAmmo(var Hedgehog: THedgehog);
begin
with Hedgehog do
if (Ammo^[CurSlot, CurAmmo].Propz and ammoprop_DontHold) <> 0 then
begin
CurAmmo:= 0;
CurSlot:= 0;
while (CurSlot <= cMaxSlotIndex) and (Ammo^[CurSlot, CurAmmo].Count = 0) do inc(CurSlot)
end
end;
procedure SetWeapon(weap: TAmmoType);
begin
ParseCommand('/setweap ' + char(weap), true)
end;
end.