diff options
Diffstat (limited to 'src/powder.c')
| -rw-r--r-- | src/powder.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/powder.c b/src/powder.c index 98f023a..9c684e9 100644 --- a/src/powder.c +++ b/src/powder.c @@ -1816,8 +1816,11 @@ void update_particles_i(pixel *vid, int start, int inc) pGravY += gravy[(y/CELL)*(XRES/CELL)+(x/CELL)]; } //velocity updates for the particle - parts[i].vx *= ptypes[t].loss; - parts[i].vy *= ptypes[t].loss; + if (!(parts[i].flags&FLAG_MOVABLE)) + { + parts[i].vx *= ptypes[t].loss; + parts[i].vy *= ptypes[t].loss; + } //particle gets velocity from the vx and vy maps parts[i].vx += ptypes[t].advection*vx[y/CELL][x/CELL] + pGravX; parts[i].vy += ptypes[t].advection*vy[y/CELL][x/CELL] + pGravY; |