92 lines
1.7 KiB
JavaScript
92 lines
1.7 KiB
JavaScript
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export default class Unit {
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constructor(output) {
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this._health = 0;
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this.dead = false;
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this.output = output;
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this.dieOnExit = false;
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}
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set health(value) {
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this._health = Math.min(0, value);
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if (this.health === 0) {
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this.dead = true;
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}
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}
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get health() {
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return this._health;
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}
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set x(value) {
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this._x = value;
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if (this.dieOnExit && this._x > this.output.columns) {
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this.dead = true;
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}
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}
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get x() {
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return this._x;
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}
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set y(value) {
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this._y = value;
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if (this.dieOnExit && this._y > this.output.rows) {
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this.dead = true;
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}
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}
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get y() {
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return this._y;
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}
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move(x, y) {
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if (!x && !y) return this.move(...this.speed());
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this.x += x;
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this.y += y;
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}
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draw() {
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if (this.dead) return;
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let { x, y, shape } = this;
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if (this.color && this.color[0] === '#') {
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this.output.cursor.hex(this.color);
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} else if (this.color) {
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this.output.cursor[this.color]();
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}
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if (this.bold) this.output.cursor.bold();
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this.output.cursor.goto(Math.round(x), Math.round(y));
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this.output.write(shape);
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this.output.cursor.reset();
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}
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go(x, y) {
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this.x = x;
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this.y = y;
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}
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speed() {
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let signs = [Math.random() > 0.5 ? -1 : 1, Math.random() > 0.5 ? -1 : 1];
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return [Math.random() * signs[0], Math.random() * signs[1]];
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}
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collides(target) {
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if (Array.isArray(target)) {
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return target.find(t => this.collides(t));
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}
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let targetX = Math.round(target.x);
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let targetY = Math.round(target.y);
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let x = Math.round(this.x);
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let y = Math.round(this.y);
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return x === targetX && y == targetY;
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}
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}
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