It comes out that i can't find pastehub anywhere :D

collider2d.js

class Collider {
	constructor() {
		this.base = [{x: -0.15, y: -0.15}, {x: 0.0, y: 0.15}, {x: 0.15, y: -0.15}];
		this.col = [{x: -0.15, y: -0.15}, {x: 0.0, y: 0.15}, {x: 0.15, y: -0.15}];
		this.pos = {x: 0.0, y: 0.0};
		this.inter = false;
	}

	update() {
		for(let i = 0; i < this.base.length; i++) {
			this.col[i] = {x: this.base[i].x + this.pos.x, y: this.base[i].y + this.pos.y};
		}
	}

	setModel(model) {
		for(let i = 0; i < model.length / 2; i++) {
			this.base[i] = {x: model[i * 2], y: model[i * 2 + 1]};
		}
	}

	collides(other) {
		let c1 = this;
		let c2 = other;

		this.inter = true;
		
		for(let i = 0; i < 2; i++) {
			if(i == 1) {
				c1 = other;
				c2 = this;
			}

			for(let a = 0; a < c1.col.length; a++) {
				const b = (a + 1) % c1.col.length;

				let axisProj = {x: -(c1.col[b].y - c1.col[a].y), y: c1.col[b].x - c1.col[a].x};
				const dist = Math.sqrt(axisProj.x * axisProj.x + axisProj.y * axisProj.y);
				axisProj.x = axisProj.x / dist;
				axisProj.y = axisProj.y / dist;

				let minR1 = Infinity;
				let maxR1 = -Infinity;
				for(let p = 0; p < c1.col.length; p++) {
					const q = (c1.col[p].x * axisProj.x + c1.col[p].y * axisProj.y);
					minR1 = Math.min(minR1, q);
					maxR1 = Math.max(maxR1, q);
				}

				let minR2 = Infinity;
				let maxR2 = -Infinity;
				for(let p = 0; p < c2.col.length; p++) {
					const q = (c2.col[p].x * axisProj.x + c2.col[p].y * axisProj.y);
					minR2 = Math.min(minR2, q);
					maxR2 = Math.max(maxR2, q);
				}

				if(!(maxR2 >= minR1 && maxR1 >= minR2)) {
					this.inter = false;
					return false;
				}
			}
		}

		return true;
	}

	draw(vb, sh) {
		sh.set2f("u_Offset", this.pos.x, this.pos.y);
		if(this.inter) {
			sh.set4f("u_Color", 0.0, 0.0, 1.0, 1.0);
		}
		else {
			sh.set4f("u_Color", 1.0, 0.0, 0.0, 1.0);
		}

		vb.draw();
	}
}