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| author | Simon Robertshaw <simon@hardwired.org.uk> | 2011-08-11 12:02:00 (GMT) |
|---|---|---|
| committer | Simon Robertshaw <simon@hardwired.org.uk> | 2011-08-11 12:02:00 (GMT) |
| commit | 9e634b95cca748b67d63a496b719a0b5c9746dc3 (patch) | |
| tree | d2e5b90c634e148a735dcde600ea58e07746d98b /src/graphics.c | |
| parent | 806e1933a2f1a80feeeb10e7923ae58461640225 (diff) | |
| download | powder-9e634b95cca748b67d63a496b719a0b5c9746dc3.zip powder-9e634b95cca748b67d63a496b719a0b5c9746dc3.tar.gz | |
Fire intensity from Lua
Diffstat (limited to 'src/graphics.c')
| -rw-r--r-- | src/graphics.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/graphics.c b/src/graphics.c index 4be05a6..055a867 100644 --- a/src/graphics.c +++ b/src/graphics.c @@ -3869,9 +3869,11 @@ void render_fire(pixel *vid) } } -void prepare_alpha(void) +void prepare_alpha(int size, float intensity) { + //TODO: implement size int x,y,i,j; + float multiplier = 255.0f*intensity; float temp[CELL*3][CELL*3]; memset(temp, 0, sizeof(temp)); for (x=0; x<CELL; x++) @@ -3881,7 +3883,7 @@ void prepare_alpha(void) temp[y+CELL+j][x+CELL+i] += expf(-0.1f*(i*i+j*j)); for (x=0; x<CELL*3; x++) for (y=0; y<CELL*3; y++) - fire_alpha[y][x] = (int)(255.0f*temp[y][x]/(CELL*CELL)); + fire_alpha[y][x] = (int)(multiplier*temp[y][x]/(CELL*CELL)); } pixel *render_packed_rgb(void *image, int width, int height, int cmp_size) |