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| author | Simon Robertshaw <simon@hardwired.org.uk> | 2011-07-18 22:58:08 (GMT) |
|---|---|---|
| committer | Simon Robertshaw <simon@hardwired.org.uk> | 2011-07-18 22:58:08 (GMT) |
| commit | 68404608f69a03546b91b4e1fe800abf48a88e74 (patch) | |
| tree | af8db7f2b4cdf591e231a55a41f1c4c18cb528b4 /src/graphics.c | |
| parent | 0fbe6e2d3fbe045e0db233c27bacc3b370b08753 (diff) | |
| download | powder-68404608f69a03546b91b4e1fe800abf48a88e74.zip powder-68404608f69a03546b91b4e1fe800abf48a88e74.tar.gz | |
Lensing effect for gravity, adds 3 new gravity maps (full resolution, linear interpolation for faux accuracy), old ones should be removed in time.
Diffstat (limited to 'src/graphics.c')
| -rw-r--r-- | src/graphics.c | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/src/graphics.c b/src/graphics.c index 3f36097..1d9438e 100644 --- a/src/graphics.c +++ b/src/graphics.c @@ -3355,7 +3355,6 @@ void draw_parts(pixel *vid) #ifdef OpenGL glFlush (); #endif - } void draw_walls(pixel *vid) { @@ -3747,9 +3746,40 @@ void render_signs(pixel *vid_buf) } } -void render_fire(pixel *dst) +void render_gravlensing(pixel *src, pixel * dst) +{ + int nx, ny, rx, ry, gx, gy, bx, by; + for(nx = 0; nx < XRES; nx++) + { + for(ny = 0; ny < YRES; ny++) + { + rx = nx-(gravxf[(ny*XRES)+nx]*0.5f); + ry = ny-(gravyf[(ny*XRES)+nx]*0.5f); + gx = nx-(gravxf[(ny*XRES)+nx]*0.75f); + gy = ny-(gravyf[(ny*XRES)+nx]*0.75f); + bx = nx-(gravxf[(ny*XRES)+nx]); + by = ny-(gravyf[(ny*XRES)+nx]); + if(rx > 0 && rx < XRES && ry > 0 && ry < YRES && gx > 0 && gx < XRES && gy > 0 && gy < YRES && bx > 0 && bx < XRES && by > 0 && by < YRES) + addpixel(dst, nx, ny, PIXR(src[ry*(XRES+BARSIZE)+rx]), PIXG(src[gy*(XRES+BARSIZE)+gx]), PIXB(src[by*(XRES+BARSIZE)+bx]), 255); + /*rx = nx+(gravxf[(ny*XRES)+nx]*0.5f); + ry = ny+(gravyf[(ny*XRES)+nx]*0.5f); + gx = nx+(gravxf[(ny*XRES)+nx]*0.75f); + gy = ny+(gravyf[(ny*XRES)+nx]*0.75f); + bx = nx+(gravxf[(ny*XRES)+nx]); + by = ny+(gravyf[(ny*XRES)+nx]); + if(rx > 0 && rx < XRES && ry > 0 && ry < YRES && gravp[ny/CELL][nx/CELL]*0.5f > -8.0f) + addpixel(dst, rx, ry, PIXR(src[ry*(XRES+BARSIZE)+rx]), 0, 0, 255); + if(gx > 0 && gx < XRES && gy > 0 && gy < YRES && gravp[ny/CELL][nx/CELL]*0.75f > -8.0f) + addpixel(dst, gx, gy, 0, PIXG(src[ry*(XRES+BARSIZE)+rx]), 0, 255); + if(bx > 0 && bx < XRES && by > 0 && by < YRES && gravp[ny/CELL][nx/CELL] > -8.0f) + addpixel(dst, bx, by, 0, 0, PIXB(src[ry*(XRES+BARSIZE)+rx]), 255);*/ + } + } +} + +void render_fire(pixel *vid) { - int i,j,x,y,r,g,b; + int i,j,x,y,r,g,b,nx,ny; for (j=0; j<YRES/CELL; j++) for (i=0; i<XRES/CELL; i++) { @@ -3759,7 +3789,7 @@ void render_fire(pixel *dst) if (r || g || b) for (y=-CELL+1; y<2*CELL; y++) for (x=-CELL+1; x<2*CELL; x++) - addpixel(dst, i*CELL+x, j*CELL+y, r, g, b, fire_alpha[y+CELL][x+CELL]); + addpixel(vid, i*CELL+x, j*CELL+y, r, g, b, fire_alpha[y+CELL][x+CELL]); for (y=-1; y<2; y++) for (x=-1; x<2; x++) if (i+x>=0 && j+y>=0 && i+x<XRES/CELL && j+y<YRES/CELL && (x || y)) |