2019-08-06 23:32:19 +02:00
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#include "common.h"
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#include "patcher.h"
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#include "Curves.h"
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2019-09-15 12:29:38 +02:00
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#if 0
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2019-08-06 23:32:19 +02:00
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WRAPPER float CCurves::CalcSpeedScaleFactor(CVector*, CVector*, float, float, float, float) { EAXJMP(0x420410); }
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2019-09-15 12:29:38 +02:00
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#else
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float CCurves::CalcSpeedScaleFactor(CVector* pPoint1, CVector* pPoint2, float dir1X, float dir1Y, float dir2X, float dir2Y)
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{
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CVector2D dir1(dir1X, dir1Y);
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CVector2D dir2(dir2X, dir2Y);
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float distance = (*pPoint1 - *pPoint2).Magnitude2D();
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float dp = DotProduct2D(dir1, dir2);
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if (dp > 0.9f)
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return distance + Abs((pPoint1->x * dir1Y - pPoint1->y * dir1X) - (pPoint2->x * dir1Y - pPoint2->y * dir1X));
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else
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return ((1.0f - dp) * 0.2f + 1.0f) * distance;
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}
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#endif
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#if 0
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2019-08-06 23:32:19 +02:00
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WRAPPER void CCurves::CalcCurvePoint(CVector*, CVector*, CVector*, CVector*, float, int32, CVector*, CVector*) { EAXJMP(0x4204D0); }
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2019-09-15 12:29:38 +02:00
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#else
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void CCurves::CalcCurvePoint(CVector* pPos1, CVector* pPos2, CVector* pDir1, CVector* pDir2, float between, int32 timeOnCurve, CVector* pOutPos, CVector* pOutDir)
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{
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float actualFactor = CalcSpeedScaleFactor(pPos1, pPos2, pDir1->x, pDir1->y, pDir2->x, pDir2->y);
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CVector2D dir1 = *pDir1 * actualFactor;
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CVector2D dir2 = *pDir2 * actualFactor;
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float curveCoef = 0.5f - 0.5f * cos(3.1415f * between);
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*pOutPos = CVector(
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(pPos1->x + between * dir1.x) * (1.0f - curveCoef) + (pPos2->x - (1 - between) * dir2.x) * curveCoef,
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(pPos1->y + between * dir1.y) * (1.0f - curveCoef) + (pPos2->y - (1 - between) * dir2.y) * curveCoef,
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0.0f);
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*pOutDir = CVector(
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(dir1.x * (1.0f - curveCoef) + dir2.x * curveCoef) / (timeOnCurve * 0.001f),
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(dir1.y * (1.0f - curveCoef) + dir2.y * curveCoef) / (timeOnCurve * 0.001f),
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0.0f);
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}
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#endif
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