mirror of https://github.com/AxioDL/metaforce.git
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
#include "CUVElement.hpp"
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/* Documentation at: http://www.metroid2002.com/retromodding/wiki/Particle_Script#UV_Elements */
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namespace urde
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{
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CUVEAnimTexture::CUVEAnimTexture(TToken<CTexture>&& tex, std::unique_ptr<CIntElement>&& a,
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std::unique_ptr<CIntElement>&& b, std::unique_ptr<CIntElement>&& c,
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std::unique_ptr<CIntElement>&& d, std::unique_ptr<CIntElement>&& e, bool f)
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: x4_tex(std::move(tex)), x24_loop(f), x28_cycleFrames(std::move(e))
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{
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a->GetValue(0, x10_tileW);
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b->GetValue(0, x14_tileH);
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c->GetValue(0, x18_strideW);
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d->GetValue(0, x1c_strideH);
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int width = x4_tex.GetObj()->GetWidth();
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int height = x4_tex.GetObj()->GetHeight();
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float widthF = width;
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float heightF = height;
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int xTiles = std::max(1, width / x18_strideW);
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int yTiles = std::max(1, height / x1c_strideH);
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x20_tiles = xTiles * yTiles;
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x2c_uvElems.reserve(x20_tiles);
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for (int y=yTiles-1 ; y>=0 ; --y)
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{
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for (int x=0 ; x<xTiles ; ++x)
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{
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int px = x18_strideW * x;
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int px2 = px + x10_tileW;
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int py = x1c_strideH * y;
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int py2 = py + x14_tileH;
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x2c_uvElems.push_back({px / widthF, py / heightF, px2 / widthF, py2 / heightF});
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}
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}
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}
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void CUVEAnimTexture::GetValueUV(int frame, SUVElementSet& valOut) const
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{
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int cv;
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x28_cycleFrames->GetValue(frame, cv);
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float cvf = cv / float(x20_tiles);
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cvf = frame / cvf;
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int tile = cvf;
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if (x24_loop)
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{
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if (cvf >= x20_tiles)
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tile = int(cvf) % x20_tiles;
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}
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else
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{
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if (cvf >= x20_tiles)
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tile = x20_tiles - 1;
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}
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valOut = x2c_uvElems[tile];
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}
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}
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