50 lines
715 B
C++
50 lines
715 B
C++
#pragma once
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class Matrix
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{
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public:
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Matrix()
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{
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e11 = 1.0; e12 = 0.0; e13 = 0.0; e14 = 0.0;
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e21 = 0.0; e22 = 1.0; e23 = 0.0; e24 = 0.0;
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e31 = 0.0; e32 = 0.0; e33 = 1.0; e34 = 0.0;
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e41 = 0.0; e42 = 0.0; e43 = 0.0; e44 = 1.0;
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}
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union
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{
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float e[4][4];
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struct
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{
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float e11, e12, e13, e14;
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float e21, e22, e23, e24;
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float e31, e32, e33, e34;
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float e41, e42, e43, e44;
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};
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};
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Matrix operator*(Matrix const& rhs)
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{
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Matrix result;
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for (int row = 0; row < 4; ++row)
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{
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for (int col = 0; col < 4; ++col)
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{
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float sum = 0.0;
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for (int i = 0; i < 4; ++i)
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{
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sum += e[row][i] * rhs.e[i][col];
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}
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result.e[row][col] = sum;
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}
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}
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return result;
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}
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};
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