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https://github.com/KuoKuo666/CocosCreator-Bubble.git
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32 lines
1.3 KiB
TypeScript
32 lines
1.3 KiB
TypeScript
export default class Util {
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public static readonly SCREEN_W: number = 720;
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public static readonly SCREEN_H: number = 1280;
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public static readonly BUBBLE_R: number = 40;
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/** Y 方向偏差为 40 倍根号 3 */
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public static readonly BUBBLE_Y: number = 40 * Math.sqrt(3);
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/** 随机数 min - max */
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public static randNum (min: number, max: number): number {
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// random 0 - 1 不包括 1
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return min + Math.floor((max - min + 1) * Math.random());
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}
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/** 传入二维数组行列，返回泡泡对应位置坐标 */
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public static convertRowColToPos (row: number, col: number): cc.Vec2 {
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// 奇数行前方少一个半径宽
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// 如果为偶数行 row % 2 = 0;
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let posX: number = this.BUBBLE_R * ((row % 2) + 1) + col * this.BUBBLE_R * 2;
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let posY: number = this.SCREEN_H - (this.BUBBLE_R + row * this.BUBBLE_Y);
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return cc.v2(posX, posY);
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}
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/** 传入泡泡对应位置坐标，返回二维数组行列 */
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public static convertPosToRowCol (posX: number, posY: number): cc.Vec2 {
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let row: number = Math.round((this.SCREEN_H - posY - this.BUBBLE_R) / this.BUBBLE_Y);
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let col: number = Math.round((posX - this.BUBBLE_R * ((row % 2) + 1)) / (this.BUBBLE_R * 2));
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return cc.v2(row, col);
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}
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}
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