mirror of
https://github.com/ddnet/ddnet.git
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96 lines
2.1 KiB
C++
96 lines
2.1 KiB
C++
#include "../../engine/interface.h"
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#include "mapres_tilemap.h"
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#include "mapres_image.h"
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#include "../mapres.h"
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#include "../../engine/config.h"
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#include <baselib/opengl.h>
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int tilemap_init()
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{
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return 0;
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}
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void tilemap_render(float scale, int fg)
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{
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if(!map_is_loaded())
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return;
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float screen_x0, screen_y0, screen_x1, screen_y1;
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gfx_getscreen(&screen_x0, &screen_y0, &screen_x1, &screen_y1);
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// fetch indecies
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int start, num;
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map_get_type(MAPRES_TILEMAP, &start, &num);
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// render tilemaps
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int passed_main = 0;
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for(int t = 0; t < num; t++)
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{
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mapres_tilemap *tmap = (mapres_tilemap *)map_get_item(start+t,0,0);
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unsigned char *data = (unsigned char *)map_get_data(tmap->data);
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if(tmap->main)
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passed_main = 1;
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if((fg && passed_main) || (!fg && !passed_main))
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{
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if(!config.gfx_high_detail && !tmap->main)
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continue;
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gfx_texture_set(img_get(tmap->image));
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gfx_quads_begin();
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int starty = (int)(screen_y0/scale)-1;
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int startx = (int)(screen_x0/scale)-1;
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int endy = (int)(screen_y1/scale)+1;
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int endx = (int)(screen_x1/scale)+1;
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float frac = (1.25f/1024.0f);//2.0f; //2.0f;
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float texsize = 1024.0f;
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float nudge = 0.5f/texsize;
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for(int y = starty; y < endy; y++)
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for(int x = startx; x < endx; x++)
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{
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int mx = x;
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int my = y;
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if(mx<0) mx = 0;
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if(mx>=tmap->width) mx = tmap->width-1;
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if(my<0) my = 0;
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if(my>=tmap->height) my = tmap->height-1;
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int c = mx + my*tmap->width;
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unsigned char d = data[c*2];
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if(d)
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{
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/*
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gfx_quads_setsubset(
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(d%16)/16.0f*s+frac,
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(d/16)/16.0f*s+frac,
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((d%16)/16.0f+1.0f/16.0f)*s-frac,
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((d/16)/16.0f+1.0f/16.0f)*s-frac);
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*/
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int tx = d%16;
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int ty = d/16;
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int px0 = tx*(1024/16);
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int py0 = ty*(1024/16);
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int px1 = (tx+1)*(1024/16)-1;
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int py1 = (ty+1)*(1024/16)-1;
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gfx_quads_setsubset(
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nudge + px0/texsize+frac,
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nudge + py0/texsize+frac,
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nudge + px1/texsize-frac,
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nudge + py1/texsize-frac);
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gfx_quads_drawTL(x*scale, y*scale, scale, scale);
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}
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}
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gfx_quads_end();
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}
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}
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}
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