From 46e689dec3feb3dc5d544abda07249be9c3b6f9a Mon Sep 17 00:00:00 2001
From: rxbn_ <git@rxbn.de>
Date: Fri, 13 Dec 2019 01:14:58 +0100
Subject: [PATCH] ball - new color when ball hits paddle

---
 src/break_out/Constants.java   |  5 +++
 src/break_out/model/Ball.java  | 60 ++++++++++++++++++++++++++++++++++
 src/break_out/model/Level.java | 13 ++++++++
 src/break_out/view/Field.java  |  9 ++++-
 4 files changed, 86 insertions(+), 1 deletion(-)

diff --git a/src/break_out/Constants.java b/src/break_out/Constants.java
index 0ee8596..46a9655 100644
--- a/src/break_out/Constants.java
+++ b/src/break_out/Constants.java
@@ -74,6 +74,11 @@ public class Constants {
 	 */
 	public static final Double BALL_SPEED = 1.20;
 
+	/**
+	 * The default component color
+	 */
+	public static final Color COLOR_COMPONENT = new Color(200, 200, 200);
+
 	/**
 	 * The component color for the bottom paddle
 	 */
diff --git a/src/break_out/model/Ball.java b/src/break_out/model/Ball.java
index 4e48bac..5d2f68b 100644
--- a/src/break_out/model/Ball.java
+++ b/src/break_out/model/Ball.java
@@ -2,6 +2,9 @@ package break_out.model;
 
 import break_out.Constants;
 
+import java.awt.Color;
+import java.util.Random;
+
 /**
  * This class contains the information about the balls characteristics and behavior
  *
@@ -19,6 +22,16 @@ public class Ball implements IBall {
 	 */
 	private Vector2D direction;
 
+	/**
+	 * The balls hit state for paddles; custom implementation
+	 */
+	private boolean hitsPaddle;
+
+	/**
+	 * The balls color with default component color
+	 */
+	private Color color = Constants.COLOR_COMPONENT;
+
 	/**
 	 * The constructor of a ball
 	 * The balls position and direction are initialized here.
@@ -51,6 +64,53 @@ public class Ball implements IBall {
 		return this.direction;
 	}
 
+	/**
+	 * The getter for the balls color
+	 *
+	 * @return color The balls current color
+	 */
+	public Color getColor() { return this.color; }
+
+	/**
+	 * The setter for the balls color
+	 *
+	 * @param color The balls new color
+	 */
+	public void setColor(Color color) { this.color = color; }
+
+	/**
+	 * Creates new random color for the ball and sets it
+	 *
+	 * @see <a href="https://stackoverflow.com/a/4247219">Stackoverflow Answer 4247219</a>
+	 */
+	public void newRandomColor() {
+		Random random = new Random();
+
+		// random hue without red colors
+		float hue = (random.nextInt(18000) + 6000) / 10000f;
+
+		// saturation between 0.5 and 0.7
+		float saturation = (random.nextInt(2000) + 5000) / 10000f;
+		float luminance = 0.9f;
+		Color randColor = Color.getHSBColor(hue, saturation, luminance);
+
+		setColor(randColor);
+	}
+
+	/**
+	 * The getter for the balls hit state
+	 *
+	 * @return hitsPaddle The balls current hit state
+	 */
+	public boolean getHitState() { return this.hitsPaddle; }
+
+	/**
+	 * The setter for the balls hit state
+	 *
+	 * @param state The balls new hit state
+	 */
+	public void setHitState(boolean state) { this.hitsPaddle = state; }
+
 	/**
 	 * updates ball position
 	 */
diff --git a/src/break_out/model/Level.java b/src/break_out/model/Level.java
index b4b7d9a..36aa2ae 100644
--- a/src/break_out/model/Level.java
+++ b/src/break_out/model/Level.java
@@ -122,6 +122,19 @@ public class Level extends Thread implements ILevel {
 				// if ball hits paddle (top|bottom), reflect ball
 				if(this.ball.hitsPaddle(paddleTop)) this.ball.reflectOnPaddle(paddleTop);
 				if(this.ball.hitsPaddle(paddleBottom)) this.ball.reflectOnPaddle(paddleBottom);
+				if(this.ball.hitsPaddle(paddleTop) || this.ball.hitsPaddle(paddleBottom)) {
+					this.ball.setHitState(true);
+					// DEBUG OUTPUT
+					//System.out.println(String.format("hitstate: %s, color: %s", this.ball.getHitState(), this.ball.getColor().getRGB()));
+				}
+
+				// if ball has hit a paddle set a new random color to it
+				else if(this.ball.getHitState()) {
+					this.ball.setHitState(false);
+					this.ball.newRandomColor();
+				}
+
+
 
 
 				// Tells the observer to repaint the components on the playground
diff --git a/src/break_out/view/Field.java b/src/break_out/view/Field.java
index b3c62e5..127543c 100644
--- a/src/break_out/view/Field.java
+++ b/src/break_out/view/Field.java
@@ -94,7 +94,7 @@ public class Field extends JPanel {
 		g2.fillRect(0, 0, getWidth(), getHeight());
 
 		// Setting the color for the following components
-		g2.setColor(new Color(200, 200, 200));
+		g2.setColor(Constants.COLOR_COMPONENT);
 
 		// Calls the method for drawing the ball
 		drawBall(g2);
@@ -116,10 +116,17 @@ public class Field extends JPanel {
 	 * @param g2 The graphics object
 	 */
 	private void drawBall(Graphics2D g2) {
+		// temporarily save default component color to draw ball in specific color
+		Color temp = g2.getColor();
+		g2.setColor(view.getGame().getLevel().getBall().getColor());
+
 		g2.fillOval((int) view.getGame().getLevel().getBall().getPosition().getX(),
 				(int) view.getGame().getLevel().getBall().getPosition().getY(),
 				Constants.BALL_DIAMETER,
 				Constants.BALL_DIAMETER);
+
+		// reset color to default
+		g2.setColor(temp);
 	}
 
 	/**