gistfile1.java

private boolean canSee(float x, float y) {
		float delta = 0.1f;
		float targetDistance = (float) Math.hypot(x-this.x, y-this.y);
		float angle = (float) (game.calcAngle(this.x, this.y, x, y) - Math.PI/2f);
		
		float dx = (float) Math.sin(angle) * delta;
		float dy = (float) -Math.cos(angle) * delta;
		float mx = this.x, my = this.y;
		
		for(float distance=0; distance < targetDistance; distance+=delta){
			mx += dx;
			my += dy;
			if(!game.placeFree(mx, my)){
				return false;
			}
		}
		return true;
	}