Progress Bar HUD - AndEngine

package com.jong.rpg;

import org.anddev.andengine.engine.camera.Camera;
import org.anddev.andengine.engine.camera.hud.HUD;
import org.anddev.andengine.entity.primitive.Line;
import org.anddev.andengine.entity.primitive.Rectangle;

/**
 * @author Jong - Yonatan
 *
 */
public class ProgressBar extends HUD {
    // ===========================================================
    // Constants
    // ===========================================================
    private static final float FRAME_LINE_WIDTH = 5f;
    // ===========================================================
    // Fields
    // ===========================================================
    private final Line[] mFrameLines = new Line[4];
    private final Rectangle mBackgroundRectangle;
    private final Rectangle mProgressRectangle;

    private final float mPixelsPerPercentRatio;
    // ===========================================================
    // Constructors
    // ===========================================================
    public ProgressBar(final Camera pCamera, final float pX, final float pY, final float pWidth, final float pHeight) {
        super();
        super.setCamera(pCamera);

        this.mBackgroundRectangle = new Rectangle(pX, pY, pWidth, pHeight);

        this.mFrameLines[0] = new Line(pX, pY, pX+pWidth, pY, FRAME_LINE_WIDTH); //Top line.
        this.mFrameLines[1] = new Line(pX + pWidth, pY, pX + pWidth, pY + pHeight, FRAME_LINE_WIDTH); //Right line.
        this.mFrameLines[2] = new Line(pX + pWidth, pY + pHeight, pX, pY + pHeight, FRAME_LINE_WIDTH); //Bottom line.
        this.mFrameLines[3] = new Line(pX, pY + pHeight, pX, pY, FRAME_LINE_WIDTH); //Left line.

        this.mProgressRectangle = new Rectangle(pX, pY, pWidth, pHeight);

        super.attachChild(this.mBackgroundRectangle); //This one is drawn first.
        super.attachChild(this.mProgressRectangle); //The progress is drawn afterwards.
        for(int i = 0; i < this.mFrameLines.length; i++)
            super.attachChild(this.mFrameLines[i]); //Lines are drawn last, so they'll override everything.

        this.mPixelsPerPercentRatio = pWidth / 100;
    }
    // ===========================================================
    // Getter & Setter
    // ===========================================================
    public void setBackColor(final float pRed, final float pGreen, final float pBlue, final float pAlpha) {
        this.mBackgroundRectangle.setColor(pRed, pGreen, pBlue, pAlpha);
    }
    public void setFrameColor(final float pRed, final float pGreen, final float pBlue, final float pAlpha) {
        for(int i = 0; i < this.mFrameLines.length; i++)
            this.mFrameLines[i].setColor(pRed, pGreen, pBlue, pAlpha);
    }
    public void setProgressColor(final float pRed, final float pGreen, final float pBlue, final float pAlpha) {
        this.mProgressRectangle.setColor(pRed, pGreen, pBlue, pAlpha);
    }
    /**
     * Set the current progress of this progress bar.
     * @param pProgress is <b> BETWEEN </b> 0 - 100.
     */
    public void setProgress(final float pProgress) {
        if(pProgress < 0)
            this.mProgressRectangle.setWidth(0); //This is an internal check for my specific game, you can remove it.
        this.mProgressRectangle.setWidth(this.mPixelsPerPercentRatio * pProgress);
    }
    // ===========================================================
    // Methods for/from SuperClass/Interfaces
    // ===========================================================

    // ===========================================================
    // Methods
    // ===========================================================

    // ===========================================================
    // Inner and Anonymous Classes
    // ===========================================================

}