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c_m3d work

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This commit is contained in:
Jasper St. Pierre
2024-01-20 10:44:36 -08:00
parent e93bb0a65c
commit 1acd6f1a97
2 changed files with 25 additions and 2 deletions
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include/SSystem/SComponent/c_m3d.h
-1
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@@ -23,7 +23,6 @@ extern f32 G_CM3D_F_ABS_MIN;
void cM3d_InDivPos1(const Vec*, const Vec*, f32, Vec*);
void cM3d_InDivPos2(const Vec*, const Vec*, f32, Vec*);
f32 cM3d_Len2dSq(f32, f32, f32, f32);
bool cM3d_Len2dSqPntAndSegLine(f32, f32, f32, f32, f32, f32, f32*, f32*, f32*);
bool cM3d_Len3dSqPntAndSegLine(const cM3dGLin*, const Vec*, Vec*, f32*);
f32 cM3d_SignedLenPlaAndPos(const cM3dGPla*, const Vec*);
src/SSystem/SComponent/c_m3d.cpp
+25 -1
View File
@@ -58,9 +58,33 @@ void cM3d_InDivPos2(const Vec* v0, const Vec* v1, f32 scale, Vec* pDst) {
cM3d_InDivPos1(v0, &tmp, scale, pDst);
}
inline f32 cM3d_Len2dSq(f32 x0, f32 y0, f32 x1, f32 y1) {
f32 x = x0 - x1;
f32 y = y0 - y1;
return x*x + y*y;
}
/* 8024A4B4-8024A56C .text cM3d_Len2dSqPntAndSegLine__FffffffPfPfPf */
bool cM3d_Len2dSqPntAndSegLine(f32, f32, f32, f32, f32, f32, f32*, f32*, f32*) {
bool cM3d_Len2dSqPntAndSegLine(f32 xp, f32 yp, f32 x0, f32 y0, f32 x1, f32 y1, f32* outx, f32* outy, f32* seg) {
/* Nonmatching */
bool ret = false;
f32 xd = x1 - x0;
f32 yd = y1 - y0;
f32 dot = (xd*xd + yd*yd);
if (cM3d_IsZero(dot)) {
*seg = 0.0f;
return ret;
}
f32 t = (x1 * (xp - x0) + y1 * (yp - y0)) / dot;
if (t >= 0.0f && t <= 1.0f) {
ret = true;
}
*outx = x0 + xd * t;
*outy = y0 + yd * t;
*seg = cM3d_Len2dSq(*outx, *outy, xp, yp);
return ret;
}
/* 8024A56C-8024A670 .text cM3d_Len3dSqPntAndSegLine__FPC8cM3dGLinPC3VecP3VecPf */