author | unc0rr |
Mon, 28 May 2012 00:44:51 +0400 | |
changeset 7133 | 9f250f79cb79 |
parent 6700 | e04da46ee43c |
child 7080 | dbf43c07a507 |
child 7151 | ec15d9e1a7e3 |
permissions | -rw-r--r-- |
1806 | 1 |
(* |
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* Hedgewars, a free turn based strategy game |
|
6700 | 3 |
* Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com> |
1806 | 4 |
* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; version 2 of the License |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
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*) |
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||
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{$INCLUDE "options.inc"} |
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|
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unit uLandTexture; |
22 |
interface |
|
1807 | 23 |
uses SDLh; |
1806 | 24 |
|
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25 |
procedure initModule; |
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26 |
procedure freeModule; |
1807 | 27 |
procedure UpdateLandTexture(X, Width, Y, Height: LongInt); |
28 |
procedure DrawLand(dX, dY: LongInt); |
|
5654 | 29 |
procedure ResetLand; |
1806 | 30 |
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31 |
implementation |
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4403 | 32 |
uses uConsts, GLunit, uTypes, uVariables, uTextures, uDebug, uRender; |
1807 | 33 |
|
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const TEXSIZE = 512; |
1806 | 35 |
|
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type TLandRecord = record |
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shouldUpdate: boolean; |
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tex: PTexture; |
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end; |
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|
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41 |
var LandTextures: array of array of TLandRecord; |
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tmpPixels: array [0..TEXSIZE - 1, 0..TEXSIZE - 1] of LongWord; |
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LANDTEXARW: LongWord; |
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LANDTEXARH: LongWord; |
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|
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function Pixels(x, y: Longword): Pointer; |
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var ty: Longword; |
|
1806 | 48 |
begin |
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for ty:= 0 to TEXSIZE - 1 do |
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Move(LandPixels[y * TEXSIZE + ty, x * TEXSIZE], tmpPixels[ty, 0], sizeof(Longword) * TEXSIZE); |
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1807 | 52 |
Pixels:= @tmpPixels |
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end; |
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1806 | 54 |
|
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Pixels2 proc, which uses Land array when updating textures
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function Pixels2(x, y: Longword): Pointer; |
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Pixels2 proc, which uses Land array when updating textures
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var tx, ty: Longword; |
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Pixels2 proc, which uses Land array when updating textures
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begin |
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Pixels2 proc, which uses Land array when updating textures
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for ty:= 0 to TEXSIZE - 1 do |
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for tx:= 0 to TEXSIZE - 1 do |
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tmpPixels[ty, tx]:= Land[y * TEXSIZE + ty, x * TEXSIZE + tx] or AMask; |
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|
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Pixels2 proc, which uses Land array when updating textures
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Pixels2:= @tmpPixels |
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Pixels2 proc, which uses Land array when updating textures
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63 |
end; |
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64 |
|
1807 | 65 |
procedure UpdateLandTexture(X, Width, Y, Height: LongInt); |
66 |
var tx, ty: Longword; |
|
67 |
begin |
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if (Width <= 0) or (Height <= 0) then |
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exit; |
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TryDo((X >= 0) and (X < LAND_WIDTH), 'UpdateLandTexture: wrong X parameter', true); |
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TryDo(X + Width <= LAND_WIDTH, 'UpdateLandTexture: wrong Width parameter', true); |
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72 |
TryDo((Y >= 0) and (Y < LAND_HEIGHT), 'UpdateLandTexture: wrong Y parameter', true); |
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73 |
TryDo(Y + Height <= LAND_HEIGHT, 'UpdateLandTexture: wrong Height parameter', true); |
1806 | 74 |
|
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if (cReducedQuality and rqBlurryLand) = 0 then |
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for ty:= Y div TEXSIZE to (Y + Height - 1) div TEXSIZE do |
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for tx:= X div TEXSIZE to (X + Width - 1) div TEXSIZE do |
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LandTextures[tx, ty].shouldUpdate:= true |
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79 |
else |
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for ty:= (Y div TEXSIZE) div 2 to ((Y + Height - 1) div TEXSIZE) div 2 do |
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for tx:= (X div TEXSIZE) div 2 to ((X + Width - 1) div TEXSIZE) div 2 do |
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LandTextures[tx, ty].shouldUpdate:= true; |
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end; |
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||
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procedure RealLandTexUpdate; |
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var x, y: LongWord; |
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begin |
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if LandTextures[0, 0].tex = nil then |
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for x:= 0 to LANDTEXARW -1 do |
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for y:= 0 to LANDTEXARH - 1 do |
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with LandTextures[x, y] do |
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begin |
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tex:= NewTexture(TEXSIZE, TEXSIZE, Pixels(x, y)); |
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glBindTexture(GL_TEXTURE_2D, tex^.id); |
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_PRIORITY, tpHigh); |
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end |
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else |
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for x:= 0 to LANDTEXARW -1 do |
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for y:= 0 to LANDTEXARH - 1 do |
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with LandTextures[x, y] do |
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if shouldUpdate then |
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begin |
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shouldUpdate:= false; |
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glBindTexture(GL_TEXTURE_2D, tex^.id); |
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TEXSIZE, TEXSIZE, 0, GL_RGBA, GL_UNSIGNED_BYTE, Pixels(x,y)); |
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106 |
end |
1806 | 107 |
end; |
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||
1807 | 109 |
procedure DrawLand(dX, dY: LongInt); |
110 |
var x, y: LongInt; |
|
1806 | 111 |
begin |
112 |
RealLandTexUpdate; |
|
1807 | 113 |
|
114 |
for x:= 0 to LANDTEXARW -1 do |
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for y:= 0 to LANDTEXARH - 1 do |
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with LandTextures[x, y] do |
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if (cReducedQuality and rqBlurryLand) = 0 then |
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118 |
DrawTexture(dX + x * TEXSIZE, dY + y * TEXSIZE, tex) |
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119 |
else |
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120 |
DrawTexture(dX + x * TEXSIZE * 2, dY + y * TEXSIZE * 2, tex, 2.0) |
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121 |
|
1807 | 122 |
end; |
123 |
||
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124 |
procedure initModule; |
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125 |
begin |
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126 |
if (cReducedQuality and rqBlurryLand) = 0 then |
5654 | 127 |
begin |
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128 |
LANDTEXARW:= LAND_WIDTH div TEXSIZE; |
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129 |
LANDTEXARH:= LAND_HEIGHT div TEXSIZE; |
5654 | 130 |
end |
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131 |
else |
5654 | 132 |
begin |
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133 |
LANDTEXARW:= (LAND_WIDTH div TEXSIZE) div 2; |
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parents:
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134 |
LANDTEXARH:= (LAND_HEIGHT div TEXSIZE) div 2; |
5654 | 135 |
end; |
3697 | 136 |
|
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137 |
SetLength(LandTextures, LANDTEXARW, LANDTEXARH); |
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138 |
end; |
3697 | 139 |
|
5654 | 140 |
procedure ResetLand; |
3615 | 141 |
var x, y: LongInt; |
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142 |
begin |
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143 |
for x:= 0 to LANDTEXARW - 1 do |
3615 | 144 |
for y:= 0 to LANDTEXARH - 1 do |
145 |
with LandTextures[x, y] do |
|
5654 | 146 |
begin |
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147 |
FreeTexture(tex); |
3615 | 148 |
tex:= nil; |
5654 | 149 |
end; |
150 |
end; |
|
151 |
||
152 |
procedure freeModule; |
|
153 |
begin |
|
154 |
ResetLand; |
|
3615 | 155 |
if LandBackSurface <> nil then |
156 |
SDL_FreeSurface(LandBackSurface); |
|
157 |
LandBackSurface:= nil; |
|
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158 |
LandTextures:= nil; |
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|
159 |
end; |
1806 | 160 |
end. |