idlize

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/*
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 * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 * http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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import { Array_from_number, float32, float64 } from "@koalaui/compat"
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export function mat33(array?: Float32Array): Matrix33 {
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    return (array == undefined) ? new Matrix33 () : new Matrix33(array)
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}
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const tolerance: float32 = (1.0 / (1 << 12))
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export class Matrix33 {
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    public readonly array: Float32Array
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    constructor (array: Float32Array = new Float32Array(Array_from_number([
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        1.0, 0.0, 0.0,
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        0.0, 1.0, 0.0,
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        0.0, 0.0, 1.0
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    ]))) {
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        this.array = array.slice()
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    }
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    static zero(): Matrix33 {
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        return new Matrix33(new Float32Array(Array_from_number([0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0])))
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    }
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    static makeTranslate(dx: float32, dy: float32): Matrix33 {
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        return new Matrix33(new Float32Array(Array_from_number([1.0, 0.0, dx as float64, 0.0, 1.0, dy as float64, 0.0, 0.0, 1.0])))
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    }
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    static makeScale(dx: float32, dy: float32 = dx): Matrix33 {
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        return new Matrix33(new Float32Array(Array_from_number([dx as float64, 0.0, 0.0, 0.0, dy as float64, 0.0, 0.0, 0.0, 1.0])))
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    }
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    static makeRotate(degrees: float32, pivotX?: float32, pivotY?: float32): Matrix33 {
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        let rads = degrees * Math.PI / 180
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        let cos = Math.cos(rads)
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        let sin = Math.sin(rads)
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        if (Math.abs(sin) <= tolerance) sin = 0.0
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        if (Math.abs(cos) <= tolerance) cos = 0.0
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        if (pivotX !== undefined && pivotY != undefined) {
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            let dx = pivotX - pivotX * cos + pivotY * sin
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            let dy = pivotY - pivotY * cos - pivotX * sin
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            return new Matrix33(new Float32Array(Array_from_number([cos, -sin, dx, sin, cos, dy, 0.0, 0.0, 1.0])))
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        } else {
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            return new Matrix33(new Float32Array(Array_from_number([cos, -sin, 0.0, sin, cos, 0.0, 0.0, 0.0, 1.0])))
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        }
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    }
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    static makeSkew(sx: float32, sy: float32): Matrix33 {
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        return new Matrix33(new Float32Array(Array_from_number([1.0, sx, 0.0, sy, 1.0, 0.0, 0.0, 0.0, 1.0])))
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    }
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    makeConcat(rhs: Matrix33): Matrix33 {
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        return new Matrix33(new Float32Array(Array_from_number([
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            this.array[0] * rhs.array[0] + this.array[1] * rhs.array[3] + this.array[2] * rhs.array[6],
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            this.array[0] * rhs.array[1] + this.array[1] * rhs.array[4] + this.array[2] * rhs.array[7],
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            this.array[0] * rhs.array[2] + this.array[1] * rhs.array[5] + this.array[2] * rhs.array[8],
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            this.array[3] * rhs.array[0] + this.array[4] * rhs.array[3] + this.array[5] * rhs.array[6],
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            this.array[3] * rhs.array[1] + this.array[4] * rhs.array[4] + this.array[5] * rhs.array[7],
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            this.array[3] * rhs.array[2] + this.array[4] * rhs.array[5] + this.array[5] * rhs.array[8],
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            this.array[6] * rhs.array[0] + this.array[7] * rhs.array[3] + this.array[8] * rhs.array[6],
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            this.array[6] * rhs.array[1] + this.array[7] * rhs.array[4] + this.array[8] * rhs.array[7],
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            this.array[6] * rhs.array[2] + this.array[7] * rhs.array[5] + this.array[8] * rhs.array[8],
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        ])))
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    }
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    makeTranspose(): Matrix33{
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        return new Matrix33(new Float32Array(Array_from_number([
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            this.array[0], this.array[3], this.array[6],
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            this.array[1], this.array[4], this.array[7],
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            this.array[2], this.array[5], this.array[8]
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        ])))
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    }
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}