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Fixed Knuckles being able to climb in space in OpenGL.

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To understand: look at AjustSegs(void) in hw_bsp.c. It reallocates the vetex_t pointers for lines as POLYVERTEX_T pointers, and of COURSE things are gonna get wacky when you're casting pointers.

I dunno how resilient the FLOAT_TO_FIXED solution is or whether it'll be netgame compatible (yayyy float precision loss) but it's not like our builds are netgame compatible with themselves
This commit is contained in:
toasterbabe 2016-08-13 13:39:24 +01:00
parent c79428a178
commit 5d6463fafc
1 changed files with 23 additions and 4 deletions
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27
src/r_main.c
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@ -33,6 +33,7 @@
#ifdef HWRENDER
#include "hardware/hw_main.h"
#include "hardware/hw_glob.h" // polyvertex_t
#endif
//profile stuff ---------------------------------------------------------
@ -268,10 +269,28 @@ INT32 R_PointOnSide(fixed_t x, fixed_t y, node_t *node)
// killough 5/2/98: reformatted
INT32 R_PointOnSegSide(fixed_t x, fixed_t y, seg_t *line)
{
fixed_t lx = line->v1->x;
fixed_t ly = line->v1->y;
fixed_t ldx = line->v2->x - lx;
fixed_t ldy = line->v2->y - ly;
fixed_t lx, ly, ldx, ldy;
#ifdef HWRENDER // how did nobody notice this for years
// used for the hardware render
if (rendermode != render_soft && rendermode != render_none)
{
lx = FLOAT_TO_FIXED(((polyvertex_t *)line->v1)->x);
ly = FLOAT_TO_FIXED(((polyvertex_t *)line->v1)->y);
ldx = FLOAT_TO_FIXED(((polyvertex_t *)line->v2)->x);
ldy = FLOAT_TO_FIXED(((polyvertex_t *)line->v2)->y);
}
else
#endif
{
lx = line->v1->x;
ly = line->v1->y;
ldx = line->v2->x;
ldy = line->v2->y;
}
ldx -= lx;
ldy -= ly;
if (!ldx)
return x <= lx ? ldy > 0 : ldy < 0;