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d_spline_path

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This commit is contained in:
Jasper St. Pierre
2024-07-11 00:26:17 -07:00
parent e145388b84
commit 83462d3f27
3 changed files with 77 additions and 13 deletions
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src/d/d_spline_path.cpp
+58 -9
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@@ -4,24 +4,73 @@
//
#include "d/d_spline_path.h"
#include "dolphin/types.h"
#include "SSystem/SComponent/c_xyz.h"
/* 800C239C-800C2430 .text Init__14d2DBSplinePathFll */
void d2DBSplinePath::Init(s32, s32) {
/* Nonmatching */
void d2DBSplinePath::Init(s32 keyNum, s32 duration) {
mFrame = 0;
mKeyNum = keyNum;
mState = 1;
mKeyNo = 0;
mEnd = duration;
mDuration = duration;
mStep = f32(mKeyNum < 2 ? 1 : mKeyNum - 2) / f32(mEnd != 0 ? mEnd - 1 : 1);
mUser = NULL;
}
#define MIN(a, b) ((a) < (b) ? (a) : (b))
/* 800C2430-800C25D8 .text Step__14d2DBSplinePathFv */
void d2DBSplinePath::Step() {
/* Nonmatching */
bool d2DBSplinePath::Step() {
if (mFrame >= mDuration)
mState = 0;
if (mState == 1)
mState = 2;
if (mState == 2) {
if (mFrame <= mEnd - 1) {
f32 inv;
f32 t = mStep * mFrame;
mKeyNo = (s32)t;
t = t - mKeyNo;
if (mFrame == mDuration - 1) {
mState = 3;
}
if (mFrame == mEnd - 1) {
mState = 3;
t = 1.0f;
}
mCurveKey[0] = MIN(mKeyNo + 0, mKeyNum - 1);
mCurveKey[1] = MIN(mKeyNo + 1, mKeyNum - 1);
mCurveKey[2] = MIN(mKeyNo + 2, mKeyNum - 1);
inv = 1.0f - t;
mCurveWeight[0] = inv * inv * 0.5f;
mCurveWeight[1] = t * inv + 0.5f;
mCurveWeight[2] = t * t * 0.5f;
mFrame++;
} else {
mState = 0;
}
}
return mState == 2 || mState == 3;
}
/* 800C25D8-800C268C .text Calc__14d2DBSplinePathFP4cXyz */
void d2DBSplinePath::Calc(cXyz*) {
/* Nonmatching */
cXyz d2DBSplinePath::Calc(cXyz* v) {
cXyz ret;
ret.x = mCurveWeight[0] * v[mCurveKey[0]].x + mCurveWeight[1] * v[mCurveKey[1]].x + mCurveWeight[2] * v[mCurveKey[2]].x;
ret.y = mCurveWeight[0] * v[mCurveKey[0]].y + mCurveWeight[1] * v[mCurveKey[1]].y + mCurveWeight[2] * v[mCurveKey[2]].y;
ret.z = mCurveWeight[0] * v[mCurveKey[0]].z + mCurveWeight[1] * v[mCurveKey[1]].z + mCurveWeight[2] * v[mCurveKey[2]].z;
return ret;
}
/* 800C268C-800C26D4 .text Calc__14d2DBSplinePathFPf */
void d2DBSplinePath::Calc(f32*) {
/* Nonmatching */
f32 d2DBSplinePath::Calc(f32* v) {
return mCurveWeight[0] * v[mCurveKey[0]] + mCurveWeight[1] * v[mCurveKey[1]] + mCurveWeight[2] * v[mCurveKey[2]];
}