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class Matrix4 { |
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buffer: number[]; |
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constructor(n11: number = 1, n12: number = 0, n13: number = 0, n14: number = 0, |
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n21: number = 0, n22: number = 1, n23: number = 0, n24: number = 0, |
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n31: number = 0, n32: number = 0, n33: number = 1, n34: number = 0, |
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n41: number = 0, n42: number = 0, n43: number = 0, n44: number = 1) { |
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this.buffer = new Array(16); |
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this.set( |
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n11, n12, n13, n14, |
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n21, n22, n23, n24, |
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n31, n32, n33, n34, |
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n41, n42, n43, n44 |
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); |
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} |
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set(n11: number, n12: number, n13: number, n14: number, |
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n21: number, n22: number, n23: number, n24: number, |
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n31: number, n32: number, n33: number, n34: number, |
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n41: number, n42: number, n43: number, n44: number) : Matrix4 { |
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const e = this.buffer; |
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e[0] = n11; e[1] = n12; e[2] = n13; e[3] = n14; |
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e[4] = n21; e[5] = n22; e[6] = n23; e[7] = n24; |
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e[8] = n31; e[9] = n32; e[10] = n33; e[11] = n34; |
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e[12] = n41; e[13] = n42; e[14] = n43; e[15] = n44; |
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return this; |
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} |
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multiply(m: Matrix4): Matrix4 { |
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const a = this.buffer; |
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const b = m.buffer; |
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return new Matrix4( |
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b[0] * a[0] + b[1] * a[4] + b[2] * a[8] + b[3] * a[12], |
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b[0] * a[1] + b[1] * a[5] + b[2] * a[9] + b[3] * a[13], |
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b[0] * a[2] + b[1] * a[6] + b[2] * a[10] + b[3] * a[14], |
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b[0] * a[3] + b[1] * a[7] + b[2] * a[11] + b[3] * a[15], |
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b[4] * a[0] + b[5] * a[4] + b[6] * a[8] + b[7] * a[12], |
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b[4] * a[1] + b[5] * a[5] + b[6] * a[9] + b[7] * a[13], |
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b[4] * a[2] + b[5] * a[6] + b[6] * a[10] + b[7] * a[14], |
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b[4] * a[3] + b[5] * a[7] + b[6] * a[11] + b[7] * a[15], |
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b[8] * a[0] + b[9] * a[4] + b[10] * a[8] + b[11] * a[12], |
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b[8] * a[1] + b[9] * a[5] + b[10] * a[9] + b[11] * a[13], |
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b[8] * a[2] + b[9] * a[6] + b[10] * a[10] + b[11] * a[14], |
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b[8] * a[3] + b[9] * a[7] + b[10] * a[11] + b[11] * a[15], |
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b[12] * a[0] + b[13] * a[4] + b[14] * a[8] + b[15] * a[12], |
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b[12] * a[1] + b[13] * a[5] + b[14] * a[9] + b[15] * a[13], |
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b[12] * a[2] + b[13] * a[6] + b[14] * a[10] + b[15] * a[14], |
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b[12] * a[3] + b[13] * a[7] + b[14] * a[11] + b[15] * a[15] |
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); |
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} |
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clone(): Matrix4 { |
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const e = this.buffer; |
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return new Matrix4( |
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e[0], e[1], e[2], e[3], |
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e[4], e[5], e[6], e[7], |
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e[8], e[9], e[10], e[11], |
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e[12], e[13], e[14], e[15] |
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); |
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} |
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} |
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export { Matrix4 }; |
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