38 lines
919 B
TypeScript
38 lines
919 B
TypeScript
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import * as c from ".././constants.js"
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class GameArea {
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keys: string[];
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interval: number = 0;
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canvas: HTMLCanvasElement;
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ctx: CanvasRenderingContext2D;
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constructor() {
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this.keys = [];
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this.canvas = document.createElement("canvas");
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this.ctx = this.canvas.getContext("2d") as CanvasRenderingContext2D;
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this.canvas.width = c.CanvasWidth;
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this.canvas.height = c.CanvasWidth / c.CanvasRatio;
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let container = document.getElementById("canvas-container");
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if (container)
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container.insertBefore(this.canvas, container.childNodes[0]);
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}
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addKey(key: string) {
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key = key.toLowerCase();
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var i = this.keys.indexOf(key);
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if (i == -1)
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this.keys.push(key);
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}
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deleteKey(key: string) {
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key = key.toLowerCase();
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var i = this.keys.indexOf(key);
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if (i != -1) {
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this.keys.splice(i, 1);
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}
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}
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clear() {
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this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);
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}
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}
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export {GameArea}
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