Update processing.pde

processing.pde

@@ -206,7 +206,9 @@ class ExplosionPart
   float y_position;
   float x_velocity;
   float y_velocity;
-  int colour;
+  int red_colour;
+  int green_colour;
+  int blue_colour;
   int part_size;
   
   ExplosionPart(float x, float y)
@@ -219,7 +221,9 @@ class ExplosionPart
     y_velocity = random(20)-10;
     // give the part a random shade of red as a starting colour
     // each update the part will get slightly darker
-    colour = int(random(200))+50;
+    red_colour = int(random(200))+50;
+    green_colour = 0;
+    blue_colour = 0;
     // give the part a random size
     // each update the part will get slightly smaller
     part_size=15 +int(random(10));
@@ -228,11 +232,24 @@ class ExplosionPart
   void update()
   {
     // make the part's colour a little darker
-    colour = colour - int(random(20));
-    if (colour<10)
+    red_colour = red_colour - int(random(20));
+    if (red_colour<0)
     {
-      colour = 10;
+      red_colour = 0;
     }
+    
+    green_colour = green_colour - int(random(20));
+    if (green_colour<0)
+    {
+      green_colour = 0;
+    }
+
+    blue_colour = blue_colour - int(random(20));
+    if (blue_colour<0)
+    {
+      blue_colour = 0;
+    }
+    
     // make the part a little smaller
     part_size--;
     if (part_size<1)
@@ -248,7 +265,7 @@ class ExplosionPart
   
   void render()
   {
-    fill(colour,0,0);
+    fill(red_colour,green_colour,blue_colour);
     ellipse(x_position,y_position,part_size,part_size);
   }