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bit better collision (nw)

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This commit is contained in:
MetalliC 2016-10-03 20:58:58 +03:00
parent d4b8b48127
commit be7e5e4b41
1 changed files with 7 additions and 4 deletions
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11
src/mame/drivers/istrebiteli.cpp
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@ -306,10 +306,13 @@ CUSTOM_INPUT_MEMBER(istrebiteli_state::collision_r)
// real hardware does per-pixel sprite collision detection
int id = *(int*)&param * 2;
int sx = m_spr_xy[4 + id];
int sy = m_spr_xy[5 + id];
int px = m_spr_xy[2 - id] + 3;
int py = m_spr_xy[3 - id] + 3;
int sx = m_spr_xy[5 + id];
int sy = m_spr_xy[4 + id];
int px = m_spr_xy[3 - id] + 3;
int py = m_spr_xy[2 - id] + 3;
if (sx < 56)
return 0;
if (px >= sx && px < (sx + 8) && py >= sy && py < (sy + 8))
return 1;