package com.ogurecapps.actors;

import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.badlogic.gdx.math.Polygon;
import com.badlogic.gdx.math.Rectangle;
import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.scenes.scene2d.utils.ScissorStack;
import com.badlogic.gdx.utils.viewport.Viewport;

/**
 * Created by coder1cv8 on 07.02.2017.
 */

public class SimpleActor extends Actor {

    public final TextureRegion region;
    private Rectangle clipBounds;
    private boolean drawHitbox;
    private final ShapeRenderer renderer;

    public SimpleActor(TextureRegion region) {
        this.region = region;

        setSize(region.getRegionWidth(), region.getRegionHeight());
        setBounds(0, 0, getWidth(), getHeight());

        renderer = new ShapeRenderer();
    }

    public void setDrawHitbox(boolean drawHitbox) {
        this.drawHitbox = drawHitbox;
    }

    public void enableClipping(Rectangle clipBounds) {
        this.clipBounds = clipBounds;
    }

    @Override
    public void draw(Batch batch, float parentAlpha) {
        Color color = getColor();
        batch.setColor(color.r, color.g, color.b, color.a * parentAlpha);

        if (clipBounds != null) {
            Rectangle scissors = new Rectangle();
            final Viewport viewport = getStage().getViewport();
            ScissorStack.calculateScissors(getStage().getCamera(), viewport.getScreenX(), viewport.getScreenY(), viewport.getScreenWidth(), viewport.getScreenHeight(), batch.getTransformMatrix(), clipBounds, scissors);
            ScissorStack.pushScissors(scissors);
        }

        batch.draw(region, getX(), getY(), getOriginX(), getOriginY(), getWidth(), getHeight(), getScaleX(), getScaleY(), getRotation());

        if (clipBounds != null) {
            batch.flush();
            ScissorStack.popScissors();
        }

        if (drawHitbox) {
            batch.end();

            renderer.setProjectionMatrix(batch.getProjectionMatrix());
            renderer.setTransformMatrix(batch.getTransformMatrix());
            renderer.begin(ShapeRenderer.ShapeType.Line);
            renderer.setColor(1f, 1f, 1f, 1f);
            renderer.polygon(getHitbox().getTransformedVertices());
            renderer.end();

            batch.begin();
        }
    }

    public Polygon getHitbox() {
        Polygon polygon = new Polygon(new float[]{0, 0, getWidth(), 0, getWidth(), getHeight(), 0, getHeight()});
        polygon.setPosition(getX(), getY());
        polygon.setOrigin(getOriginX(), getOriginY());
        polygon.setScale(getScaleX(), getScaleY());
        polygon.setRotation(getRotation());

        return polygon;
    }

}