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| author | jacksonmj <mj-pt@jacksonmj.co.uk> | 2011-07-23 18:24:32 (GMT) |
|---|---|---|
| committer | Simon Robertshaw <simon@hardwired.org.uk> | 2011-07-24 12:10:43 (GMT) |
| commit | aeaaa1c4dabbb1816f2afd39dc80b2eb4f3be34e (patch) | |
| tree | d26548eb456be816da3dad22d652e54f41ee3f0c | |
| parent | 89cc8d4ded6cf96941520e5d0097224f60b79929 (diff) | |
| download | powder-aeaaa1c4dabbb1816f2afd39dc80b2eb4f3be34e.zip powder-aeaaa1c4dabbb1816f2afd39dc80b2eb4f3be34e.tar.gz | |
update_air now runs 10% faster
| -rw-r--r-- | src/air.c | 22 |
1 files changed, 10 insertions, 12 deletions
@@ -25,6 +25,7 @@ float *th_gravxf; float vx[YRES/CELL][XRES/CELL], ovx[YRES/CELL][XRES/CELL]; float vy[YRES/CELL][XRES/CELL], ovy[YRES/CELL][XRES/CELL]; float pv[YRES/CELL][XRES/CELL], opv[YRES/CELL][XRES/CELL]; +unsigned char bmap_blockair[YRES/CELL][XRES/CELL]; float cb_vx[YRES/CELL][XRES/CELL]; float cb_vy[YRES/CELL][XRES/CELL]; @@ -215,6 +216,11 @@ void update_air(void) int x, y, i, j; float dp, dx, dy, f, tx, ty; + for (y=0; y<YRES/CELL; y++) + for (x=0; x<XRES/CELL; x++) + { + bmap_blockair[y][x] = (bmap[y][x]==WL_WALL || bmap[y][x]==WL_WALLELEC || (bmap[y][x]==WL_EWALL && !emap[y][x])); + } if (airMode != 4) { //airMode 4 is no air/pressure update for (i=0; i<YRES/CELL; i++) //reduces pressure/velocity on the edges every frame @@ -254,7 +260,7 @@ void update_air(void) { for (i=1; i<XRES/CELL; i++) { - if (bmap[j][i]==WL_WALL || bmap[j][i]==WL_WALLELEC || (bmap[j][i]==WL_EWALL && !emap[j][i])) + if (bmap_blockair[j][i]) { vx[j][i] = 0.0f; vx[j][i-1] = 0.0f; @@ -284,15 +290,9 @@ void update_air(void) vy[y][x] *= AIR_VLOSS; vx[y][x] += dx*AIR_TSTEPV; vy[y][x] += dy*AIR_TSTEPV; - if (bmap[y][x]==WL_WALL || bmap[y][x+1]==WL_WALL || - bmap[y][x]==WL_WALLELEC || bmap[y][x+1]==WL_WALLELEC || - (bmap[y][x]==WL_EWALL && !emap[y][x]) || - (bmap[y][x+1]==WL_EWALL && !emap[y][x+1])) + if (bmap_blockair[y][x] || bmap_blockair[y][x+1]) vx[y][x] = 0; - if (bmap[y][x]==WL_WALL || bmap[y+1][x]==WL_WALL || - bmap[y][x]==WL_WALLELEC || bmap[y+1][x]==WL_WALLELEC || - (bmap[y][x]==WL_EWALL && !emap[y][x]) || - (bmap[y+1][x]==WL_EWALL && !emap[y+1][x])) + if (bmap_blockair[y][x] || bmap_blockair[y+1][x]) vy[y][x] = 0; } @@ -306,9 +306,7 @@ void update_air(void) for (i=-1; i<2; i++) if (y+j>0 && y+j<YRES/CELL-1 && x+i>0 && x+i<XRES/CELL-1 && - bmap[y+j][x+i]!=WL_WALL && - bmap[y+j][x+i]!=WL_WALLELEC && - (bmap[y+j][x+i]!=WL_EWALL || emap[y+j][x+i])) + !bmap_blockair[y+j][x+i]) { f = kernel[i+1+(j+1)*3]; dx += vx[y+j][x+i]*f; |