Game-Decompilation/2ship2harkinian
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fix beating heart (#50)

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Archez 2024-01-15 00:14:20 -05:00 committed by Garrett Cox
parent d75e5c07f7
commit dfcc980dba
1 changed files with 8 additions and 48 deletions
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56
mm/src/code/su_mtx.c
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@ -77,54 +77,14 @@
*/
void Mtx_SetTranslateScaleMtx(Mtx* mtx, f32 scaleX, f32 scaleY, f32 scaleZ, f32 translateX, f32 translateY,
f32 translateZ) {
Mtx* m = mtx;
s32 fixedPoint;
m->m[0][1] = 0; // [i02, i03] == [0, 0]
m->m[2][1] = 0; // [f02, f03] == [0, 0]
m->m[0][3] = 0; // [i12, i13] == [0, 0]
m->m[2][3] = 0; // [f22, f23] == [0, 0]
m->m[1][0] = 0; // [i20, i21] == [0, 0]
//
fixedPoint = scaleX * 0x10000; //
m->m[0][0] = fixedPoint; // [i00, i01] == [scaleX.i, scaleX.f]; i01 is now "dirty"
m->intPart[0][1] = 0; // Clean i01 by zeroing it: [i00, i01] == [scaleX.i, 0]
m->m[2][0] = (u32)fixedPoint << 16; // [f00, f01] == [scaleX.f, 0]
//
fixedPoint = scaleY * 0x10000; //
m->m[0][2] = (u32)fixedPoint >> 16; // [i10, i11] == [0, scaleY.i]
m->m[2][2] = fixedPoint & 0xFFFF; // [f10, f11] == [0, scaleY.f]
//
fixedPoint = scaleZ * 0x10000; //
m->m[1][1] = fixedPoint; // [i22, i23] == [scaleZ.i, scaleZ.f]
m->intPart[2][3] = 0; // [i22, i23] == [scaleZ.i, 0]
m->m[3][1] = (u32)fixedPoint << 16; // [f22, f23] == [scaleZ.f, 0]
//
m->m[3][0] = 0; // [f20, f21] == [0, 0]
//
fixedPoint = translateX * 0x10000; //
m->intPart[3][0] = ((u32)fixedPoint >> 16) & 0xFFFF; // [i30, i31] == [translateX.i, ?]
m->fracPart[3][0] = fixedPoint & 0xFFFF; // [f30, f31] == [translateX.f, ?]
//
fixedPoint = translateY * 0x10000; //
m->intPart[3][1] = ((u32)fixedPoint >> 16) & 0xFFFF; // [i30, i31] == [translateX.i, translateY.i]
m->fracPart[3][1] = fixedPoint & 0xFFFF; // [f30, f31] == [translateX.f, translateY.f]
//
fixedPoint = translateZ * 0x10000; //
m->intPart[3][2] = ((u32)fixedPoint >> 16) & 0xFFFF; // [i30, i31] == [translateZ.i, ?]
m->intPart[3][3] = 1; // [i32, i33] == [translateZ.i, 1]
m->m[3][3] = (u32)fixedPoint << 16; // [f32, f33] == [translateZ.f, 0]
// So we end up with
// [scaleX.i, 0], [0, 0],
// [0, scaleY.i], [0, 0],
// [0, 0], [scaleZ.i, 0],
// [translateX.i, translateY.i], [translateZ.i, 1]
//
// [scaleX.f, 0], [0, 0],
// [0, scaleY.f], [0, 0],
// [0, 0], [scaleZ.f, 0]
// [translateX.f, translateY.f], [translateZ.f, 0]
// #region 2S2H [Port] For compatibility with modern systems this has been changed to use guMtxF2L
MtxF mtxf = { {
{ scaleX, 0, 0, 0 },
{ 0, scaleY, 0, 0 },
{ 0, 0, scaleZ, 0 },
{ translateX, translateY, translateZ, 1 }
} };
guMtxF2L(&mtxf, mtx);
}
// Unused