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shibbo
47 lines
2.0 KiB
C++
47 lines
2.0 KiB
C++
#include "Game/Map/WaterPoint.hpp"
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#include "Game/Util.hpp"
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WaterPoint::WaterPoint(const TVec3f &rPos, const TVec3f &rUpVec, f32 coordAcrossRail, f32 coordOnRail, f32 height, f32 flowSpeedRate) :
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mPosition(rPos), mOrigPos(rPos), mCoordAcrossRail(coordAcrossRail), mCoordOnRail(coordOnRail), mUpVec(rUpVec), mHeight(height), mFlowSpeedRate(flowSpeedRate), mAlpha(-1) {
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}
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void WaterPoint::initAfterPlacement() {
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if (mHeight != 0.0f) {
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TVec3f v9(mPosition.x, (200.0f + mPosition.y), mPosition.z);
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TVec3f v8(0.0f, 0.0f, 0.0f);
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if (MR::calcMapGround(v9, &v8, 400.0f)) {
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f32 v2 = ((v8.y - mPosition.y) / 200.0f);
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f32 v3 = MR::clamp((0.1f + __fabsf(v2)), 0.1f, 1.0f);
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f32 v6 = MR::clamp((30.0f + (255.0f * -v2)), 30.0f, 255.0f);
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f32 v7 = mHeight;
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mAlpha = v6;
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mHeight = (v3 >= v7) ? v7 : v3;
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}
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}
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}
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void WaterPoint::updatePos(f32 waveTheta1, f32 waveTheta2, f32 waveHeight1, f32 waveHeight2, f32 a5) {
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f32 height = calcHeight(waveTheta1, waveTheta2, waveHeight1, waveHeight2, mCoordAcrossRail, mCoordOnRail);
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f32 v9 = a5 * height;
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mPosition.x = mUpVec.x * v9;
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mPosition.y = mUpVec.y * (a5 * height);
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mPosition.z = mUpVec.z * v9;
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mPosition.addInline_4(mOrigPos);
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}
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/* thanks to WMC for naming the vars */
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f32 WaterPoint::calcHeight(f32 waveTheta1, f32 waveTheta2, f32 waveHeight1, f32 waveHeight2, f32 coordAcrossRail, f32 coordOnRail) const {
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// "Wave 2" moves along the rail
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f32 actualWaveHeight2 = (waveHeight2 * MR::sin(waveTheta2 + (0.0024999999f * coordOnRail)));
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// "Wave 1" moves diagonal to the rail
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f32 wave1PerpendicularComponent = 0.003f * coordAcrossRail;
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f32 wave1ThetaPlusPerpendicularComponent = waveTheta1 + wave1PerpendicularComponent;
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f32 normalizedWaveHeight1 = MR::sin(wave1ThetaPlusPerpendicularComponent + 0.00030000001f * coordOnRail);
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f32 actualWaveHeight1 = waveHeight1 * normalizedWaveHeight1;
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f32 finalHeight = mHeight * (actualWaveHeight2 + actualWaveHeight1);
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return finalHeight;
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} |