src/net/sourceforge/desert/ParticleRenderer.java

   1 package net.sourceforge.desert;
   2
   3 import java.awt.image.BufferedImage;
   4
   5 /**
   6  *
   7  * @author codistmonk (creation 2010-04-17)
   8  */
   9 public class ParticleRenderer {
  10
  11     private final int[] colorComponents = new int[4];
  12
  13     private BufferedImage buffer;
  14
  15     /**
  16      *
  17      * @param particle
  18      * <br>Not null
  19      */
  20     public final void draw(final Particle particle) {
  21         if (this.getBuffer() == null) {
  22             return;
  23         }
  24
  25         final int x = (int) particle.getX();
  26         final int y = this.getBuffer().getHeight() - (int) particle.getY() - 1;
  27
  28         this.getBuffer().getRaster().setPixel(x, y, this.getColorComponents(particle));
  29     }
  30
  31     /**
  32      *
  33      * @return
  34      * <br>Maybe null
  35      * <br>Shared
  36      */
  37     public final BufferedImage getBuffer() {
  38         return this.buffer;
  39     }
  40
  41     /**
  42      *
  43      * @param buffer
  44      * <br>Maybe null
  45      * <br>Shared
  46      */
  47     public final void setBuffer(final BufferedImage buffer) {
  48         this.buffer = buffer;
  49     }
  50
  51     /**
  52      *
  53      * @param particle
  54      * <br>Not null
  55      * @return
  56      * <br>Not null
  57      * <br>Shared
  58      */
  59     private final int[] getColorComponents(final Particle particle) {
  60         this.colorComponents[0] = particle.getType().getColor().getRed();
  61         this.colorComponents[1] = particle.getType().getColor().getGreen();
  62         this.colorComponents[2] = particle.getType().getColor().getBlue();
  63         this.colorComponents[3] = particle.getType().getColor().getAlpha();
  64
  65         return this.colorComponents;
  66     }
  67
  68 }