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xrick2gs
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fix numerical issues with enemy movement

This commit is contained in:
dwsJason 2018-09-01 16:43:32 -04:00
parent 811810ddfd
commit f6ea147ed4
1 changed files with 2 additions and 2 deletions
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4
src/e_them.c
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@ -110,7 +110,7 @@ e_them_t1_action2(U8 e, U8 type)
U8 env0, env1;
/* by default, try vertical move. calculate new y */
i = (ent_ents[e].y << 8) + ent_ents[e].offsy + ent_ents[e].ylow;
i = (((S32)ent_ents[e].y) << 8) + ((S32)ent_ents[e].offsy) + ((U32)ent_ents[e].ylow);
y = i >> 8;
/* deactivate if outside vertical boundaries */
@ -294,7 +294,7 @@ e_them_z_action(U8 e)
+ ((ent_ents[e].x & 0x04) ? 0x07 : 0x06);
/* calc new y */
i = (ent_ents[e].y << 8) + ent_ents[e].offsy + ent_ents[e].ylow;
i = (((S32)ent_ents[e].y) << 8) + ((S32)ent_ents[e].offsy) + ((U32)ent_ents[e].ylow);
/* deactivate if out of vertical boundaries */
if (ent_ents[e].y < 0 || ent_ents[e].y > 0x0140) {