(*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2009 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 uWorld;

interface

uses SDLh, uGears, uConsts, uFloat;

{$INCLUDE options.inc}

const WorldDx: LongInt = -512;

      WorldDy: LongInt = -256;

procedure InitWorld;

procedure DrawWorld(Lag: LongInt);

procedure AddCaption(s: string; Color: Longword; Group: TCapGroup);

{$IFDEF COUNTTICKS}

var cntTicks: LongWord;

{$ENDIF}

var FollowGear: PGear = nil;

	WindBarWidth: LongInt = 0;

	bShowAmmoMenu: boolean = false;

	bSelected: boolean = false;

	bShowFinger: boolean = false;

	Frames: Longword = 0;

	WaterColor, DeepWaterColor: TSDL_Color;

implementation

uses uStore, uMisc, uTeams, uIO, uConsole, uKeys, uLocale, uSound,

{$IFDEF IPHONE}

	gles11,

{$ELSE}

	GL,

{$ENDIF}

     uAmmos, uVisualGears, uChat, uLandTexture, uLand;

const FPS: Longword = 0;

      CountTicks: Longword = 0;

      SoundTimerTicks: Longword = 0;

      prevPoint: TPoint = (X: 0; Y: 0);

type TCaptionStr = record

                   Tex: PTexture;

                   EndTime: LongWord;

                   end;

var cWaterSprCount, cWaveWidth, cWaveHeight: LongInt;

	Captions: array[TCapGroup] of TCaptionStr;

	AMxShift, SlotsNum: LongInt;

	tmpSurface: PSDL_Surface;

	fpsTexture: PTexture = nil;

procedure InitWorld;

begin

cWaveWidth:= SpritesData[sprWater].Width;

cWaveHeight:= SpritesData[sprWater].Height;

cWaterSprCount:= 1 + cScreenWidth div cWaveWidth;

cGearScrEdgesDist:= Min(cScreenWidth div 2 - 100, cScreenHeight div 2 - 50);

SDL_WarpMouse(cScreenWidth div 2, cScreenHeight div 2);

prevPoint.X:= cScreenWidth div 2;

prevPoint.Y:= cScreenHeight div 2;

WorldDx:=  - (LAND_WIDTH div 2) + cScreenWidth div 2;

WorldDy:=  - LAND_HEIGHT + (cScreenHeight - playHeight) div 2;

WorldDy:=  - (LAND_HEIGHT div 2) + cScreenHeight div 2;

AMxShift:= 210

end;

procedure ShowAmmoMenu;

const MENUSPEED = 15;

var x, y, i, t, l: LongInt;

    Slot, Pos: LongInt;

begin

if (TurnTimeLeft = 0) or KbdKeyPressed then bShowAmmoMenu:= false;

if bShowAmmoMenu then

   begin

   if AMxShift = 210 then prevPoint.X:= 0;

   if cReducedQuality then

       AMxShift:= 0

   else

       if AMxShift > 0 then dec(AMxShift, MENUSPEED);

   end else

   begin

   if AMxShift = 0 then

      begin

      CursorPoint.X:= cScreenWidth div 2;

      CursorPoint.Y:= cScreenHeight div 2;

      prevPoint:= CursorPoint;

      SDL_WarpMouse(CursorPoint.X, CursorPoint.Y)

      end;

   if cReducedQuality then

       AMxShift:= 210

   else

       if AMxShift < 210 then inc(AMxShift, MENUSPEED);

   end;

if CurrentTeam = nil then exit;

Slot:= 0;

Pos:= -1;

with CurrentHedgehog^ do

	begin

	if Ammo = nil then exit;

	SlotsNum:= 0;

	x:= cScreenWidth - 210 + AMxShift;

	y:= cScreenHeight - 40;

	dec(y);

	DrawSprite(sprAMBorders, x, y, 0);

	dec(y);

	DrawSprite(sprAMBorders, x, y, 1);

	dec(y, 33);

	DrawSprite(sprAMSlotName, x, y, 0);

	for i:= cMaxSlotIndex downto 0 do

		if Ammo^[i, 0].Count > 0 then

			begin

			if (CursorPoint.Y >= y - 33) and (CursorPoint.Y < y) then Slot:= i;

			dec(y, 33);

			inc(SlotsNum);

			DrawSprite(sprAMSlot, x, y, 0);

			DrawSprite(sprAMSlotKeys, x + 2, y + 1, i);

			t:= 0;

			while (t <= cMaxSlotAmmoIndex) and (Ammo^[i, t].Count > 0) do

				begin

				l:= Ammoz[Ammo^[i, t].AmmoType].SkipTurns - CurrentTeam^.Clan^.TurnNumber;

				if l >= 0 then

					begin

					DrawSprite(sprAMAmmosBW, x + t * 33 + 35, y + 1, LongInt(Ammo^[i, t].AmmoType));

					DrawSprite(sprTurnsLeft, x + t * 33 + 51, y + 17, l);

					end else

					DrawSprite(sprAMAmmos, x + t * 33 + 35, y + 1, LongInt(Ammo^[i, t].AmmoType));

				if (Slot = i)

				and (CursorPoint.X >= x + t * 33 + 35)

				and (CursorPoint.X < x + t * 33 + 68) then

					begin

					if (l < 0) then DrawSprite(sprAMSelection, x + t * 33 + 35, y + 1, 0);

					Pos:= t;

					end;

				inc(t)

				end

			end;

	dec(y, 1);

	DrawSprite(sprAMBorders, x, y, 0);

	if (Pos >= 0) then

		if Ammo^[Slot, Pos].Count > 0 then

		begin

		DrawTexture(cScreenWidth - 200 + AMxShift, cScreenHeight - 68, Ammoz[Ammo^[Slot, Pos].AmmoType].NameTex);

		if Ammo^[Slot, Pos].Count < AMMO_INFINITE then

			DrawTexture(cScreenWidth + AMxShift - 35, cScreenHeight - 68, CountTexz[Ammo^[Slot, Pos].Count]);

		if bSelected and (Ammoz[Ammo^[Slot, Pos].AmmoType].SkipTurns - CurrentTeam^.Clan^.TurnNumber < 0) then

			begin

			bShowAmmoMenu:= false;

			SetWeapon(Ammo^[Slot, Pos].AmmoType);

			bSelected:= false;

			exit

			end;

		end;

	end;

bSelected:= false;

if AMxShift = 0 then DrawSprite(sprArrow, CursorPoint.X, CursorPoint.Y, (RealTicks shr 6) mod 8)

end;

procedure MoveCamera; forward;

procedure DrawWater;

var VertexBuffer: array [0..3] of TVertex2f;

    r: TSDL_Rect;

begin

// Water

r.y:= WorldDy + cWaterLine + 32;

if r.y < cScreenHeight then

	begin

	if r.y < 0 then r.y:= 0;

	glDisable(GL_TEXTURE_2D);

	VertexBuffer[0].X:= 0;

	VertexBuffer[0].Y:= r.y;

	VertexBuffer[1].X:= cScreenWidth;

	VertexBuffer[1].Y:= r.y;

	VertexBuffer[2].X:= cScreenWidth;

	VertexBuffer[2].Y:= cScreenHeight;

	VertexBuffer[3].X:= 0;

	VertexBuffer[3].Y:= cScreenHeight;

	glEnableClientState (GL_COLOR_ARRAY);

	glColorPointer(3, GL_UNSIGNED_BYTE, 0, @WaterColorArray[0]);

	glEnableClientState(GL_VERTEX_ARRAY);

	glVertexPointer(2, GL_FLOAT, 0, @VertexBuffer[0]);

	glDrawArrays(GL_TRIANGLE_FAN, 0, Length(VertexBuffer));

	glEnableClientState(GL_COLOR_ARRAY);

	glDisableClientState(GL_COLOR_ARRAY);

	glColor4f(1, 1, 1, 1); // disable coloring

	glEnable(GL_TEXTURE_2D)

	end

end;

procedure DrawWorld(Lag: LongInt);

var i, t: LongInt;

    r: TSDL_Rect;

    tdx, tdy: Double;

    grp: TCapGroup;

    s: string[15];

    procedure DrawRepeated(spr: TSprite; Shift: LongInt);

    var i, w: LongInt;

    begin

    w:= SpritesData[spr].Width;

    i:= Shift mod w;

    if i > 0 then dec(i, w);

    repeat

      DrawSprite(spr, i, WorldDy + LAND_HEIGHT - SpritesData[spr].Height, 0);

      inc(i, w)

    until i > cScreenWidth

    end;

begin

// Sky

glClear(GL_COLOR_BUFFER_BIT);

glEnable(GL_BLEND);

glEnable(GL_TEXTURE_2D);

//glPushMatrix;

//glScalef(1.0, 1.0, 1.0);

if not isPaused then MoveCamera;

if not cReducedQuality then

    begin

    // background

    DrawRepeated(sprSky, WorldDx * 3 div 8);

    DrawRepeated(sprHorizont, WorldDx * 3 div 5);

    DrawVisualGears(0);

    // Waves

    {$WARNINGS OFF}

    for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * cWaveWidth  + ((WorldDx + (RealTicks shr 6)      ) mod cWaveWidth), cWaterLine + WorldDy - (cWaveHeight*2), 0);

    for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * cWaveWidth + ((WorldDx - (RealTicks shr 6) + 100) mod cWaveWidth), cWaterLine + WorldDy - (cWaveHeight + cWaveHeight div 2), 0);

    {$WARNINGS ON}

    end;

DrawLand(WorldDx, WorldDy);

DrawWater;

// Attack bar

if CurrentTeam <> nil then

	case AttackBar of

(*        1: begin

		r:= StuffPoz[sPowerBar];

		{$WARNINGS OFF}

		r.w:= (CurrentHedgehog^.Gear^.Power * 256) div cPowerDivisor;

		{$WARNINGS ON}

		DrawSpriteFromRect(r, cScreenWidth - 272, cScreenHeight - 48, 16, 0, Surface);

		end;*)

		2: with CurrentHedgehog^ do

				begin

				tdx:= hwSign(Gear^.dX) * Sin(Gear^.Angle * Pi / cMaxAngle);

				tdy:= - Cos(Gear^.Angle * Pi / cMaxAngle);

				for i:= (Gear^.Power * 24) div cPowerDivisor downto 0 do

					DrawSprite(sprPower,

							hwRound(Gear^.X) + system.round(WorldDx + tdx * (24 + i * 2)) - 16,

							hwRound(Gear^.Y) + system.round(WorldDy + tdy * (24 + i * 2)) - 12,

							i)

				end

		end;

DrawGears;

if not cReducedQuality then DrawVisualGears(1);

// Waves

{$WARNINGS OFF}

for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * cWaveWidth  + ((WorldDx + (RealTicks shr 6) +  25) mod cWaveWidth), cWaterLine + WorldDy - cWaveHeight, 0);

for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * cWaveWidth  + ((WorldDx - (RealTicks shr 6) +  50) mod cWaveWidth), cWaterLine + WorldDy - (cWaveHeight div 2), 0);

for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * cWaveWidth  + ((WorldDx + (RealTicks shr 6) +  75) mod cWaveWidth), cWaterLine + WorldDy     , 0);

{$WARNINGS ON}

// Turn time

if TurnTimeLeft <> 0 then

   begin

   i:= Succ(Pred(TurnTimeLeft) div 1000);

   if i>99 then t:= 112

      else if i>9 then t:= 96

                  else t:= 80;

   DrawSprite(sprFrame, t, cScreenHeight - 48, 1);

   while i > 0 do

         begin

         dec(t, 32);

         DrawSprite(sprBigDigit, t, cScreenHeight - 48, i mod 10);

         i:= i div 10

         end;

   DrawSprite(sprFrame, t - 4, cScreenHeight - 48, 0);

   end;

// Target

if TargetPoint.X <> NoPointX then DrawSprite(sprTargetP, TargetPoint.X + WorldDx - 16, TargetPoint.Y + WorldDy - 16, 0);

//glPopMatrix;

// Captions

i:= 8;

for grp:= Low(TCapGroup) to High(TCapGroup) do

    with Captions[grp] do

         if Tex <> nil then

            begin

            DrawCentered(cScreenWidth div 2, i, Tex);

            inc(i, Tex^.h + 2);

            if EndTime <= RealTicks then

               begin

               FreeTexture(Tex);

               Tex:= nil;

               EndTime:= 0

               end

            end;

// Teams Healths

for t:= 0 to Pred(TeamsCount) do

   with TeamsArray[t]^ do

      begin

      DrawTexture(cScreenWidth div 2 - NameTagTex^.w - 3, cScreenHeight + DrawHealthY, NameTagTex);

      r.x:= 0;

      r.y:= 0;

      r.w:= 2 + TeamHealthBarWidth;

      r.h:= HealthTex^.h;

      DrawFromRect(cScreenWidth div 2,

                        cScreenHeight + DrawHealthY,

                        @r, HealthTex);

      inc(r.x, cTeamHealthWidth + 2);

      r.w:= 3;

      DrawFromRect(cScreenWidth div 2 + TeamHealthBarWidth + 2,

                        cScreenHeight + DrawHealthY,

                        @r, HealthTex);

      end;

// Lag alert

if isInLag then DrawSprite(sprLag, 32, 32, (RealTicks shr 7) mod 12);

// Wind bar

DrawSprite(sprWindBar, cScreenWidth - 180, cScreenHeight - 30, 0);

if WindBarWidth > 0 then

   begin

   {$WARNINGS OFF}

   r.x:= 8 - (RealTicks shr 6) mod 8;

   {$WARNINGS ON}

   r.y:= 0;

   r.w:= WindBarWidth;

   r.h:= 13;

   DrawSpriteFromRect(sprWindR, r, cScreenWidth - 103, cScreenHeight - 28, 13, 0);

   end else

 if WindBarWidth < 0 then

   begin

   {$WARNINGS OFF}

   r.x:= (WindBarWidth + RealTicks shr 6) mod 8;

   {$WARNINGS ON}

   r.y:= 0;

   r.w:= - WindBarWidth;

   r.h:= 13;

   DrawSpriteFromRect(sprWindL, r, cScreenWidth - 106 + WindBarWidth, cScreenHeight - 28, 13, 0);

   end;

// AmmoMenu

if (AMxShift < 210) or bShowAmmoMenu then ShowAmmoMenu;

DrawChat;

// Cursor

if isCursorVisible then

   begin

   if not bShowAmmoMenu then

     with CurrentHedgehog^ do

       if (Gear^.State and gstHHChooseTarget) <> 0 then

         begin

         i:= Ammo^[CurSlot, CurAmmo].Pos;

         with Ammoz[Ammo^[CurSlot, CurAmmo].AmmoType] do

           if PosCount > 1 then

              DrawSprite(PosSprite, CursorPoint.X - SpritesData[PosSprite].Width div 2,

                                    CursorPoint.Y - SpritesData[PosSprite].Height div 2,

                                    i);

         end;

   DrawSprite(sprArrow, CursorPoint.X, CursorPoint.Y, (RealTicks shr 6) mod 8)

   end;

if isPaused then DrawCentered(cScreenWidth div 2, cScreenHeight div 2, PauseTexture);

inc(Frames);

if cShowFPS then

   begin

   inc(CountTicks, Lag);

   if CountTicks >= 1000 then

      begin

      FPS:= Frames;

      Frames:= 0;

      CountTicks:= 0;

      s:= inttostr(FPS) + ' fps';

      if fpsTexture <> nil then FreeTexture(fpsTexture);

      tmpSurface:= TTF_RenderUTF8_Blended(Fontz[fnt16].Handle, Str2PChar(s), $FFFFFF);

      fpsTexture:= Surface2Tex(tmpSurface);

      SDL_FreeSurface(tmpSurface)

      end;

   if fpsTexture <> nil then

      DrawTexture(cScreenWidth - 50, 10, fpsTexture);

   end;

inc(SoundTimerTicks, Lag);

if SoundTimerTicks >= 50 then

   begin

   SoundTimerTicks:= 0;

   if cVolumeDelta <> 0 then

      begin

      str(ChangeVolume(cVolumeDelta), s);

      AddCaption(Format(trmsg[sidVolume], s), $FFFFFF, capgrpVolume)

      end

   end;

if GameState = gsConfirm then DrawCentered(cScreenWidth div 2, cScreenHeight div 2, ConfirmTexture);

glDisable(GL_TEXTURE_2D);

glDisable(GL_BLEND)

end;

procedure AddCaption(s: string; Color: Longword; Group: TCapGroup);

begin

if Group in [capgrpGameState, capgrpNetSay] then WriteLnToConsole(s);

if Captions[Group].Tex <> nil then FreeTexture(Captions[Group].Tex);

Captions[Group].Tex:= RenderStringTex(s, Color, fntBig);

Captions[Group].EndTime:= RealTicks + 1500

end;

procedure MoveCamera;

const PrevSentPointTime: LongWord = 0;

var EdgesDist: LongInt;

begin

if (not (CurrentTeam^.ExtDriven and isCursorVisible))

	and cHasFocus then SDL_GetMouseState(@CursorPoint.X, @CursorPoint.Y);

if (FollowGear <> nil) and (not isCursorVisible) then

	if abs(CursorPoint.X - prevPoint.X) + abs(CursorPoint.Y - prevpoint.Y) > 4 then

		begin

		FollowGear:= nil;

		prevPoint.X:= CursorPoint.X;

		prevPoint.Y:= CursorPoint.Y;

		exit

		end

		else begin

		CursorPoint.x:= (prevPoint.x * 7 + (hwRound(FollowGear^.X) + hwSign(FollowGear^.dX) * 100) + WorldDx) div 8;

		CursorPoint.y:= (prevPoint.y * 7 + (hwRound(FollowGear^.Y) + WorldDy)) div 8

		end;

if ((CursorPoint.X = prevPoint.X)and(CursorPoint.Y = prevpoint.Y)) then exit;

if AMxShift < 210 then

	begin

	if CursorPoint.X < cScreenWidth + AMxShift - 175 then CursorPoint.X:= cScreenWidth + AMxShift - 175;

	if CursorPoint.X > cScreenWidth + AMxShift - 10 then CursorPoint.X:= cScreenWidth + AMxShift - 10;

	if CursorPoint.Y < cScreenHeight - 75 - SlotsNum * 33 then CursorPoint.Y:= cScreenHeight - 75 - SlotsNum * 33;

	if CursorPoint.Y > cScreenHeight - 76 then CursorPoint.Y:= cScreenHeight - 76;

	prevPoint:= CursorPoint;