package;

import nape.space.Space;
import nape.phys.Body;
import nape.phys.BodyType;
import nape.shape.Circle;
import nape.shape.Polygon;
import nape.geom.Vec2;
import nape.util.BitmapDebug;

import FixedStep;

class LineControl extends FixedStep {
    static function main() new LineControl()
    function new() {
        super(1/60);

        var space = new Space(new Vec2(0,400));
        var debug = new BitmapDebug(550,400,0xffffff);
        addChild(debug.display);

        var player = new Body();
        player.shapes.add(new Polygon(Polygon.box(20,20)));
        player.space = space;
        player.position.setxy(275,100);
        player.allowRotation = false;

        var floor = new Body(BodyType.STATIC);
        floor.shapes.add(new Polygon(Polygon.rect(275-100,200,200,50)));
        floor.space = space;

        var inf = Math.POSITIVE_INFINITY;
        var horiz = new nape.constraint.LineJoint(space.world, player, new Vec2(), new Vec2(), new Vec2(0,1), -inf,inf);
        horiz.stiff = false;
        horiz.maxError = 0;
        horiz.maxForce = 1000;
        horiz.space = space;

        run(function (dt) {
            player.kinematicVel.x = 100*Math.cos(space.elapsedTime);

            debug.clear();
            space.step(dt);
            debug.draw(space);
            debug.flush();
        });
    }
}