updated Additive.Blending.pde with setup() function and updated Particle...

NOC_4_09_AdditiveBlending/NOC_4_09_AdditiveBlending.pde

@@ -10,10 +10,14 @@ ParticleSystem ps;
 PImage img;
 
 void setup() {
+  size(800, 200, P2D);
 
+  // Create an alpha masked image to be applied as the particle's texture
+  img = loadImage("texture.png");
+
+  ps = new ParticleSystem(0, new PVector(width/2, 50));
+  smooth();
 }
 
 void draw() {
-
 }
-

NOC_4_09_AdditiveBlending/Particle.pde

@@ -7,27 +7,24 @@ class Particle {
 
   // Another constructor (the one we are using here)
   Particle(PVector l) {
-
   }
 
   void run() {
-
   }
 
   // Method to update location
   void update() {
-
+    vel.add(acc);
+    loc.add(vel);
+    lifespan -= 2.0;
   }
 
   // Method to display
   void render() {
-
   }
-  
+
   // Is the particle still useful?
   boolean dead() {
     return true; // Not necessarily correct
   }
 }
-
-