Import cube_2005_08_29_src_zlib.zip
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src/rendertext.cpp
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src/rendertext.cpp
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// rendertext.cpp: based on Don's gl_text.cpp
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#include "cube.h"
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short char_coords[96][4] =
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{
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{0,0,25,64}, //!
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{25,0,54,64}, //"
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{54,0,107,64}, //#
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{107,0,148,64}, //$
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{148,0,217,64}, //%
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{217,0,263,64}, //&
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{263,0,280,64}, //'
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{280,0,309,64}, //(
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{309,0,338,64}, //)
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{338,0,379,64}, //*
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{379,0,432,64}, //+
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{432,0,455,64}, //,
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{455,0,484,64}, //-
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{0,64,21,128}, //.
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{23,64,52,128}, ///
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{52,64,93,128}, //0
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{93,64,133,128}, //1
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{133,64,174,128}, //2
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{174,64,215,128}, //3
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{215,64,256,128}, //4
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{256,64,296,128}, //5
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{296,64,337,128}, //6
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{337,64,378,128}, //7
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{378,64,419,128}, //8
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{419,64,459,128}, //9
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{459,64,488,128}, //:
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{0,128,29,192}, //;
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{29,128,81,192}, //<
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{81,128,134,192}, //=
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{134,128,186,192}, //>
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{186,128,221,192}, //?
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{221,128,285,192}, //@
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{285,128,329,192}, //A
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{329,128,373,192}, //B
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{373,128,418,192}, //C
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{418,128,467,192}, //D
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{0,192,40,256}, //E
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{40,192,77,256}, //F
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{77,192,127,256}, //G
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{127,192,175,256}, //H
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{175,192,202,256}, //I
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{202,192,231,256}, //J
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{231,192,275,256}, //K
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{275,192,311,256}, //L
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{311,192,365,256}, //M
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{365,192,413,256}, //N
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{413,192,463,256}, //O
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{1,256,38,320}, //P
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{38,256,89,320}, //Q
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{89,256,133,320}, //R
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{133,256,176,320}, //S
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{177,256,216,320}, //T
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{217,256,263,320}, //U
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{263,256,307,320}, //V
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{307,256,370,320}, //W
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{370,256,414,320}, //X
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{414,256,453,320}, //Y
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{453,256,497,320}, //Z
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{0,320,29,384}, //[
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{29,320,58,384}, //"\"
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{59,320,87,384}, //]
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{87,320,139,384}, //^
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{139,320,180,384}, //_
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{180,320,221,384}, //`
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{221,320,259,384}, //a
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{259,320,299,384}, //b
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{299,320,332,384}, //c
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{332,320,372,384}, //d
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{372,320,411,384}, //e
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{411,320,433,384}, //f
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{435,320,473,384}, //g
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{0,384,40,448}, //h
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{40,384,56,448}, //i
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{58,384,80,448}, //j
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{80,384,118,448}, //k
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{118,384,135,448}, //l
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{135,384,197,448}, //m
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{197,384,238,448}, //n
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{238,384,277,448}, //o
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{277,384,317,448}, //p
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{317,384,356,448}, //q
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{357,384,384,448}, //r
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{385,384,417,448}, //s
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{417,384,442,448}, //t
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{443,384,483,448}, //u
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{0,448,38,512}, //v
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{38,448,90,512}, //w
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{90,448,128,512}, //x
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{128,448,166,512}, //y
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{166,448,200,512}, //z
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{200,448,241,512}, //{
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{241,448,270,512}, //|
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{270,448,310,512}, //}
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{310,448,363,512}, //~
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};
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int text_width(char *str)
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{
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int x = 0;
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for (int i = 0; str[i] != 0; i++)
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{
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int c = str[i];
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if(c=='\t') { x = (x+PIXELTAB)/PIXELTAB*PIXELTAB; continue; };
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if(c=='\f') continue;
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if(c==' ') { x += FONTH/2; continue; };
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c -= 33;
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if(c<0 || c>=95) continue;
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int in_width = char_coords[c][2] - char_coords[c][0];
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x += in_width + 1;
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}
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return x;
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}
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void draw_textf(char *fstr, int left, int top, int gl_num, ...)
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{
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sprintf_sdlv(str, gl_num, fstr);
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draw_text(str, left, top, gl_num);
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};
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void draw_text(char *str, int left, int top, int gl_num)
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{
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glBlendFunc(GL_ONE, GL_ONE);
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glBindTexture(GL_TEXTURE_2D, gl_num);
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glColor3ub(255,255,255);
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int x = left;
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int y = top;
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int i;
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float in_left, in_top, in_right, in_bottom;
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int in_width, in_height;
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for (i = 0; str[i] != 0; i++)
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{
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int c = str[i];
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if(c=='\t') { x = (x-left+PIXELTAB)/PIXELTAB*PIXELTAB+left; continue; };
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if(c=='\f') { glColor3ub(64,255,128); continue; };
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if(c==' ') { x += FONTH/2; continue; };
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c -= 33;
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if(c<0 || c>=95) continue;
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in_left = ((float) char_coords[c][0]) / 512.0f;
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in_top = ((float) char_coords[c][1]+2) / 512.0f;
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in_right = ((float) char_coords[c][2]) / 512.0f;
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in_bottom = ((float) char_coords[c][3]-2) / 512.0f;
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in_width = char_coords[c][2] - char_coords[c][0];
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in_height = char_coords[c][3] - char_coords[c][1];
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glBegin(GL_QUADS);
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glTexCoord2f(in_left, in_top ); glVertex2i(x, y);
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glTexCoord2f(in_right, in_top ); glVertex2i(x + in_width, y);
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glTexCoord2f(in_right, in_bottom); glVertex2i(x + in_width, y + in_height);
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glTexCoord2f(in_left, in_bottom); glVertex2i(x, y + in_height);
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glEnd();
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xtraverts += 4;
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x += in_width + 1;
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}
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}
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// also Don's code, so goes in here too :)
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void draw_envbox_aux(float s0, float t0, int x0, int y0, int z0,
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float s1, float t1, int x1, int y1, int z1,
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float s2, float t2, int x2, int y2, int z2,
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float s3, float t3, int x3, int y3, int z3,
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int texture)
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{
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glBindTexture(GL_TEXTURE_2D, texture);
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glBegin(GL_QUADS);
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glTexCoord2f(s3, t3); glVertex3d(x3, y3, z3);
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glTexCoord2f(s2, t2); glVertex3d(x2, y2, z2);
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glTexCoord2f(s1, t1); glVertex3d(x1, y1, z1);
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glTexCoord2f(s0, t0); glVertex3d(x0, y0, z0);
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glEnd();
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xtraverts += 4;
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}
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void draw_envbox(int t, int w)
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{
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glDepthMask(GL_FALSE);
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draw_envbox_aux(1.0f, 1.0f, -w, -w, w,
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0.0f, 1.0f, w, -w, w,
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0.0f, 0.0f, w, -w, -w,
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1.0f, 0.0f, -w, -w, -w, t);
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draw_envbox_aux(1.0f, 1.0f, +w, w, w,
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0.0f, 1.0f, -w, w, w,
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0.0f, 0.0f, -w, w, -w,
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1.0f, 0.0f, +w, w, -w, t+1);
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draw_envbox_aux(0.0f, 0.0f, -w, -w, -w,
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1.0f, 0.0f, -w, w, -w,
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1.0f, 1.0f, -w, w, w,
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0.0f, 1.0f, -w, -w, w, t+2);
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draw_envbox_aux(1.0f, 1.0f, +w, -w, w,
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0.0f, 1.0f, +w, w, w,
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0.0f, 0.0f, +w, w, -w,
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1.0f, 0.0f, +w, -w, -w, t+3);
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draw_envbox_aux(0.0f, 1.0f, -w, w, w,
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0.0f, 0.0f, +w, w, w,
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1.0f, 0.0f, +w, -w, w,
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1.0f, 1.0f, -w, -w, w, t+4);
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draw_envbox_aux(0.0f, 1.0f, +w, w, -w,
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0.0f, 0.0f, -w, w, -w,
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1.0f, 0.0f, -w, -w, -w,
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1.0f, 1.0f, +w, -w, -w, t+5);
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glDepthMask(GL_TRUE);
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}
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