diff options
Diffstat (limited to 'src/game/client/gc_render_map.cpp')
| -rw-r--r-- | src/game/client/gc_render_map.cpp | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/src/game/client/gc_render_map.cpp b/src/game/client/gc_render_map.cpp new file mode 100644 index 00000000..fcb8c272 --- /dev/null +++ b/src/game/client/gc_render_map.cpp @@ -0,0 +1,167 @@ +/* copyright (c) 2007 magnus auvinen, see licence.txt for more info */ +#include <engine/e_interface.h> +#include "../g_math.h" +#include "gc_client.h" + +static void rotate(POINT *center, POINT *point, float rotation) +{ + int x = point->x - center->x; + int y = point->y - center->y; + point->x = (int)(x * cosf(rotation) - y * sinf(rotation) + center->x); + point->y = (int)(x * sinf(rotation) + y * cosf(rotation) + center->y); +} + +void render_quads(QUAD *quads, int num_quads) +{ + gfx_quads_begin(); + float conv = 1/255.0f; + for(int i = 0; i < num_quads; i++) + { + QUAD *q = &quads[i]; + + gfx_quads_setsubset_free( + fx2f(q->texcoords[0].x), fx2f(q->texcoords[0].y), + fx2f(q->texcoords[1].x), fx2f(q->texcoords[1].y), + fx2f(q->texcoords[2].x), fx2f(q->texcoords[2].y), + fx2f(q->texcoords[3].x), fx2f(q->texcoords[3].y) + ); + + float r=1, g=1, b=1, a=1; + float offset_x = 0; + float offset_y = 0; + float rot = 0; + + /* + // TODO: fix this + if(editor.animate) + { + if(q->pos_env >= 0 && q->pos_env < editor.map.envelopes.len()) + { + ENVELOPE *e = editor.map.envelopes[q->pos_env]; + float t = editor.animate_time+q->pos_env_offset/1000.0f; + offset_x = e->eval(t, 0); + offset_y = e->eval(t, 1); + rot = e->eval(t, 2); + } + + if(q->color_env >= 0 && q->color_env < editor.map.envelopes.len()) + { + ENVELOPE *e = editor.map.envelopes[q->color_env]; + float t = editor.animate_time+q->color_env_offset/1000.0f; + r = e->eval(t, 0); + g = e->eval(t, 1); + b = e->eval(t, 2); + a = e->eval(t, 3); + } + }*/ + + gfx_setcolorvertex(0, q->colors[0].r*conv*r, q->colors[0].g*conv*g, q->colors[0].b*conv*b, q->colors[0].a*conv*a); + gfx_setcolorvertex(1, q->colors[1].r*conv*r, q->colors[1].g*conv*g, q->colors[1].b*conv*b, q->colors[1].a*conv*a); + gfx_setcolorvertex(2, q->colors[2].r*conv*r, q->colors[2].g*conv*g, q->colors[2].b*conv*b, q->colors[2].a*conv*a); + gfx_setcolorvertex(3, q->colors[3].r*conv*r, q->colors[3].g*conv*g, q->colors[3].b*conv*b, q->colors[3].a*conv*a); + + POINT *points = q->points; + + if(rot != 0) + { + static POINT rotated[4]; + rotated[0] = q->points[0]; + rotated[1] = q->points[1]; + rotated[2] = q->points[2]; + rotated[3] = q->points[3]; + points = rotated; + + rotate(&q->points[4], &rotated[0], rot); + rotate(&q->points[4], &rotated[1], rot); + rotate(&q->points[4], &rotated[2], rot); + rotate(&q->points[4], &rotated[3], rot); + } + + gfx_quads_draw_freeform( + fx2f(points[0].x)+offset_x, fx2f(points[0].y)+offset_y, + fx2f(points[1].x)+offset_x, fx2f(points[1].y)+offset_y, + fx2f(points[2].x)+offset_x, fx2f(points[2].y)+offset_y, + fx2f(points[3].x)+offset_x, fx2f(points[3].y)+offset_y + ); + } + gfx_quads_end(); +} + + +void render_tilemap(TILE *tiles, int w, int h, float scale) +{ + //gfx_texture_set(img_get(tmap->image)); + float screen_x0, screen_y0, screen_x1, screen_y1; + gfx_getscreen(&screen_x0, &screen_y0, &screen_x1, &screen_y1); + + // calculate the final pixelsize for the tiles + float tile_pixelsize = 1024/32.0f; + float final_tilesize = scale/(screen_x1-screen_x0) * gfx_screenwidth(); + float final_tilesize_scale = final_tilesize/tile_pixelsize; + + gfx_quads_begin(); + + int starty = (int)(screen_y0/scale)-1; + int startx = (int)(screen_x0/scale)-1; + int endy = (int)(screen_y1/scale)+1; + int endx = (int)(screen_x1/scale)+1; + + // adjust the texture shift according to mipmap level + float texsize = 1024.0f; + float frac = (1.25f/texsize) * (1/final_tilesize_scale); + float nudge = (0.5f/texsize) * (1/final_tilesize_scale); + + for(int y = starty; y < endy; y++) + for(int x = startx; x < endx; x++) + { + int mx = x; + int my = y; + if(mx<0) + continue; // mx = 0; + if(mx>=w) + continue; // mx = w-1; + if(my<0) + continue; // my = 0; + if(my>=h) + continue; // my = h-1; + + int c = mx + my*w; + + unsigned char index = tiles[c].index; + if(index) + { + unsigned char flags = tiles[c].flags; + int tx = index%16; + int ty = index/16; + int px0 = tx*(1024/16); + int py0 = ty*(1024/16); + int px1 = (tx+1)*(1024/16)-1; + int py1 = (ty+1)*(1024/16)-1; + + float u0 = nudge + px0/texsize+frac; + float v0 = nudge + py0/texsize+frac; + float u1 = nudge + px1/texsize-frac; + float v1 = nudge + py1/texsize-frac; + + if(flags&TILEFLAG_VFLIP) + { + float tmp = u0; + u0 = u1; + u1 = tmp; + } + + if(flags&TILEFLAG_HFLIP) + { + float tmp = v0; + v0 = v1; + v1 = tmp; + } + + gfx_quads_setsubset(u0,v0,u1,v1); + + gfx_quads_drawTL(x*scale, y*scale, scale, scale); + } + } + + gfx_quads_end(); +} |