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Merge branch 'udmf-equation-slopes' into 'next'

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Fix equation slopes overflow

Closes #757

See merge request STJr/SRB2!1830
This commit is contained in:
sphere 2022-10-28 09:11:10 +00:00
commit fad7c429a5
1 changed files with 5 additions and 1 deletions
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6
src/p_slopes.c
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@ -94,10 +94,14 @@ static void ReconfigureViaVertexes (pslope_t *slope, const vector3_t v1, const v
static void ReconfigureViaConstants (pslope_t *slope, const fixed_t a, const fixed_t b, const fixed_t c, const fixed_t d) static void ReconfigureViaConstants (pslope_t *slope, const fixed_t a, const fixed_t b, const fixed_t c, const fixed_t d)
{ {
fixed_t m; fixed_t m;
fixed_t o = 0;
vector3_t *normal = &slope->normal; vector3_t *normal = &slope->normal;
if (c)
o = abs(c) <= FRACUNIT ? -FixedMul(d, FixedDiv(FRACUNIT, c)) : -FixedDiv(d, c);
// Set origin. // Set origin.
FV3_Load(&slope->o, 0, 0, c ? -FixedDiv(d, c) : 0); FV3_Load(&slope->o, 0, 0, o);
// Get slope's normal. // Get slope's normal.
FV3_Load(normal, a, b, c); FV3_Load(normal, a, b, c);