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   package nl.tudelft.goal.ut2004.visualizer.map;
   
   import java.awt.Color;
   
  /**
   * Generator of various colors that are suitable for representation of agents in
   * the map.
   * 
   * @author Honza
   */
  public class TeamShade {
  
  	private Color personalBase;
  	private Color personalRed;
  	private Color personalBlue;
  
  	private Color redTeam;
  	private Color blueTeam;
  
  	private static final double TEAM_COLOR_STRENGHT = 0.25;
  
  	public TeamShade(){
  		this(randomColor());
  	}
  	
  	public TeamShade(Color personalColor) {
  		this(personalColor, Color.RED, Color.BLUE);
  	}
  
  	public TeamShade(Color redteam, Color blueTeam) {
  		this(randomColor(), redteam, blueTeam);
  	}
  
  	public TeamShade(Color personalColor, Color redTeam, Color blueTeam) {
  		this.personalBase = personalColor;
  		this.redTeam = redTeam;
  		this.blueTeam = blueTeam;
  
  		personalRed = mix(redTeam, personalBase, TEAM_COLOR_STRENGHT);
  		personalBlue = mix(blueTeam, personalBase, TEAM_COLOR_STRENGHT);
  	}
  
  	public Color getColor(int team) {
  		switch (team) {
  		case 0:
  			return personalRed;
  		case 1:
  			return personalBlue;
  		default:
  			return personalBase;
  		}
  	}
  
  	/**
  	 * Create a mixed color from passed color and this color in following
  	 * fashion:
  	 * 
  	 * <pre>
  	 * this * (1 - portion) + mixing * portion
  	 * </pre>
  	 * 
  	 * @param mixing
  	 *            Color that will be mixed with this one.
  	 * @param portion
  	 *            how much of mixing color will be used
  	 * @return Mixed color, not that this color won't be changed
  	 */
  	private Color mix(Color a, Color b, double portion) {
  		double thisPortion = 1 - portion;
  		return new Color(
  		// Red
  				(int) (thisPortion * a.getRed()) + (int) (portion * b.getRed()),
  				// Green
  				(int) (thisPortion * a.getGreen()) + (int) (portion * b.getGreen()),
  				// Blue
  				(int) (thisPortion * a.getBlue()) + (int) (portion * b.getBlue()),
  				// Alpha
  				(int) (thisPortion * a.getAlpha()) + (int) (portion * b.getAlpha()));
  	}
  
  	private static Color randomColor() {
  		return new Color((float) Math.random(), (float) Math.random(), (float) Math.random());
  	}
  
  	public Color getRedTeam() {
  		return redTeam;
  	}
  
  	public void setRedTeam(Color redTeam) {
  		this.redTeam = redTeam;
  		personalRed = mix(redTeam, personalBase, TEAM_COLOR_STRENGHT);
  	}
  
  	public Color getBlueTeam() {
 		return blueTeam;
 	}
 
 	public void setBlueTeam(Color blueTeam) {
 		this.blueTeam = blueTeam;
 		personalBlue = mix(blueTeam, personalBase, TEAM_COLOR_STRENGHT);
 	}
 
 }