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Fix high speed photons when reflecting near glass

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jacksonmj 2011-05-09 22:31:37 +01:00 committed by Simon Robertshaw
parent fa54c005b2
commit 882a839205
1 changed files with 7 additions and 0 deletions
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7
src/powder.c
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@ -1883,6 +1883,13 @@ killed:
fin_x = (int)(parts[i].x + parts[i].vx + 0.5f);
fin_y = (int)(parts[i].y + parts[i].vy + 0.5f);
// cast as int then back to float for compatibility with existing saves
if (t==PT_PHOT) {
s = eval_move(PT_PHOT, fin_x, fin_y, &r);
if ((((r&0xFF)==PT_GLAS && lt!=PT_GLAS) || ((r&0xFF)!=PT_GLAS && lt==PT_GLAS)) && s) {
// if movement will involve refraction, leave it until next frame so that refraction happens correctly
goto movedone;
}
}
if (try_move(i, x, y, fin_x, fin_y)) {
parts[i].x = (float)fin_x;
parts[i].y = (float)fin_y;