package org.woehlke.computer.kurzweil.tabs.dla.view;
   
   import org.woehlke.computer.kurzweil.tabs.dla.DiffusionLimitedAggregation;
   import org.woehlke.computer.kurzweil.tabs.dla.model.Particles;
   import org.woehlke.computer.kurzweil.tabs.dla.model.Point;
   
   import javax.swing.*;
   import java.awt.*;
   
  
  /**
   * Diffusion Limited Aggregation.
   *
   * (C) 2006 - 2013 Thomas Woehlke.
   * https://thomas-woehlke.blogspot.com/2016/01/diffusion-limited-aggregation.html
   * @author Thomas Woehlke
   *
   * Date: 05.02.2006
   * Time: 00:51:51
   */
  public class WorldCanvas extends JComponent implements DiffusionLimitedAggregation {
  
      static final long serialVersionUID = 242L;
  
  
      private Particles particles;
      private Point worldDimensions;
  
      private final Color MEDIUM = Color.BLACK;
      private final Color PARTICLES = Color.BLUE;
  
      public WorldCanvas(Point worldDimensions, Particles particles) {
          this.worldDimensions = worldDimensions;
          this.setBackground(MEDIUM);
          this.setSize(this.worldDimensions.getX(), this.worldDimensions.getY());
          this.particles=particles;
      }
  
      public void paint(Graphics g) {
          super.paintComponent(g);
          int width = worldDimensions.getX();
          int height = worldDimensions.getY();
          g.setColor(MEDIUM);
          g.fillRect(0,0,width,height);
          g.setColor(PARTICLES);
          for(Point pixel:particles.getParticles()){
              g.drawLine(pixel.getX(),pixel.getY(),pixel.getX(),pixel.getY());
          }
          for(int y=0;y<worldDimensions.getY();y++){
              for(int x=0;x<worldDimensions.getX();x++){
                  int age = particles.getDendriteColor(x,y);
                  if(age>0){
                      age /= 25;
                      int blue = (age / 256) % (256*256);
                      int green = (age % 256);
                      int red = 255;
                      Color ageColor = new Color(red,green,blue);
                      g.setColor(ageColor);
                      g.drawLine(x,y,x,y);
                  }
              }
          }
      }
  
      public void update(Graphics g) {
          paint(g);
      }
  
      public Point getWorldDimensions() {
          return worldDimensions;
      }
  }