egordorichev/LastTry

package org.egordorichev.lasttry.world.biome.components;

import com.badlogic.gdx.graphics.g2d.TextureRegion;

import org.egordorichev.lasttry.Globals;
import org.egordorichev.lasttry.component.Component;
import org.egordorichev.lasttry.graphics.Graphics;
import org.egordorichev.lasttry.world.biome.Biome;

public class BiomeAnimationComponent implements Component {
    private Biome biome;
    private TextureRegion backgroundTextureRegion;
    private float alpha = 0;

    public BiomeAnimationComponent(Biome biome, TextureRegion backgroundTextureRegion) {
        this.biome = biome;
        this.backgroundTextureRegion = backgroundTextureRegion;
    }

    public void fadeIn() {
        this.alpha = (Math.min(1, this.alpha + 0.01f));
    }

    public void fadeInFast() {
        this.alpha = 1f;
    }

    public void fadeOut() {
        this.alpha = (Math.min(1, this.alpha - 0.01f));
    }

    public boolean fadeInIsDone() {
        return this.alpha >= 0.99f;
    }

    public boolean fadeOutIsDone() {
        return this.alpha < 0.01f;
    }

    @Override
    public void render() {
        int i = 0;
        int w = 0;

        do {
            draw(i);
            w += this.backgroundTextureRegion.getRegionWidth();
            i++;
        } while (Globals.resolution.x > w);
    }

    public void draw(int offset) {
        float c = Globals.environment.time.isNight() ? 0.2f : 1.f;
        Graphics.batch.setColor(c, c, c, this.alpha);
        Graphics.batch.draw(this.backgroundTextureRegion, offset * this.backgroundTextureRegion.getRegionWidth(), 0);
        Graphics.batch.setColor(1, 1, 1, 1);
    }
}