src/game/opengl/r_map.pas

   1 (* Copyright (C)  Doom 2D: Forever Developers
   2  *
   3  * This program is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, version 3 of the License ONLY.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  *
  12  * You should have received a copy of the GNU General Public License
  13  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  14  *)
  15 {$INCLUDE ../../shared/a_modes.inc}
  16 unit r_map;
  17
  18 interface
  19
  20   uses MAPDEF; // TDFColor
  21
  22   procedure r_Map_DrawBack (dx, dy: Integer);
  23   procedure r_Map_DrawPanels (PanelType: Word; hasAmbient: Boolean; constref ambColor: TDFColor); // unaccelerated
  24   procedure r_Map_CollectDrawPanels (x0, y0, wdt, hgt: Integer);
  25   procedure r_Map_DrawPanelShadowVolumes (lightX: Integer; lightY: Integer; radius: Integer);
  26   procedure r_Map_DrawFlags;
  27
  28 implementation
  29
  30   uses
  31     {$INCLUDE ../nogl/noGLuses.inc}
  32     SysUtils, Classes, Math,
  33     e_graphics,
  34     g_basic, g_game, g_options,
  35     g_panel, g_map,
  36     r_panel
  37   ;
  38
  39 procedure dplClear ();
  40 begin
  41   if (gDrawPanelList = nil) then gDrawPanelList := TBinHeapPanelDraw.Create() else gDrawPanelList.clear();
  42 end;
  43
  44 // old algo
  45 procedure r_Map_DrawPanels (PanelType: Word; hasAmbient: Boolean; constref ambColor: TDFColor);
  46
  47   procedure DrawPanels (constref panels: TPanelArray; drawDoors: Boolean=False);
  48   var
  49     idx: Integer;
  50   begin
  51     if (panels <> nil) then
  52     begin
  53       // alas, no visible set
  54       for idx := 0 to High(panels) do
  55       begin
  56         if not (drawDoors xor panels[idx].Door) then
  57           r_Panel_Draw(panels[idx], hasAmbient, ambColor);
  58       end;
  59     end;
  60   end;
  61
  62 begin
  63   case PanelType of
  64     PANEL_WALL:       DrawPanels(gWalls);
  65     PANEL_CLOSEDOOR:  DrawPanels(gWalls, True);
  66     PANEL_BACK:       DrawPanels(gRenderBackgrounds);
  67     PANEL_FORE:       DrawPanels(gRenderForegrounds);
  68     PANEL_WATER:      DrawPanels(gWater);
  69     PANEL_ACID1:      DrawPanels(gAcid1);
  70     PANEL_ACID2:      DrawPanels(gAcid2);
  71     PANEL_STEP:       DrawPanels(gSteps);
  72   end;
  73 end;
  74
  75 // new algo
  76 procedure r_Map_CollectDrawPanels (x0, y0, wdt, hgt: Integer);
  77 var
  78   mwit: PPanel;
  79   it: TPanelGrid.Iter;
  80 begin
  81   dplClear();
  82   it := mapGrid.forEachInAABB(x0, y0, wdt, hgt, GridDrawableMask);
  83   for mwit in it do if (((mwit^.tag and GridTagDoor) <> 0) = mwit^.Door) then gDrawPanelList.insert(mwit^);
  84   it.release();
  85   // list will be rendered in `g_game.DrawPlayer()`
  86 end;
  87
  88 procedure r_Map_DrawPanelShadowVolumes (lightX: Integer; lightY: Integer; radius: Integer);
  89 var
  90   mwit: PPanel;
  91   it: TPanelGrid.Iter;
  92 begin
  93   it := mapGrid.forEachInAABB(lightX-radius, lightY-radius, radius*2, radius*2, (GridTagWall or GridTagDoor));
  94   for mwit in it do r_Panel_DrawShadowVolume(mwit^, lightX, lightY, radius);
  95   it.release();
  96 end;
  97
  98 procedure r_Map_DrawBack(dx, dy: Integer);
  99 begin
 100   if gDrawBackGround and (BackID <> DWORD(-1)) then
 101     e_DrawSize(BackID, dx, dy, 0, False, False, gBackSize.X, gBackSize.Y)
 102   else
 103     e_Clear(GL_COLOR_BUFFER_BIT, 0, 0, 0);
 104 end;
 105
 106 procedure r_Map_DrawFlags();
 107 var
 108   i, dx: Integer;
 109   tx, ty: Integer;
 110   Mirror: TMirrorType;
 111 begin
 112   if gGameSettings.GameMode <> GM_CTF then
 113     Exit;
 114
 115   for i := FLAG_RED to FLAG_BLUE do
 116     with gFlags[i] do
 117       if State <> FLAG_STATE_CAPTURED then
 118       begin
 119         if State = FLAG_STATE_NONE then
 120           continue;
 121
 122         Obj.lerp(gLerpFactor, tx, ty);
 123
 124         if Direction = TDirection.D_LEFT then
 125           begin
 126             Mirror := TMirrorType.Horizontal;
 127             dx := -1;
 128           end
 129         else
 130           begin
 131             Mirror := TMirrorType.None;
 132             dx := 1;
 133           end;
 134
 135         Animation.Draw(tx + dx, ty + 1, Mirror);
 136
 137         if g_debug_Frames then
 138         begin
 139           e_DrawQuad(Obj.X+Obj.Rect.X,
 140                      Obj.Y+Obj.Rect.Y,
 141                      Obj.X+Obj.Rect.X+Obj.Rect.Width-1,
 142                      Obj.Y+Obj.Rect.Y+Obj.Rect.Height-1,
 143                      0, 255, 0);
 144         end;
 145       end;
 146 end;
 147
 148 end.