progresses on processing script

processing-js 0.4 has been merged in some relevant parts
basic and topic scripts added for test
color handling fixed, more scripts show up now

scripts/processing/basic/constrain.pde

@@ -0,0 +1,33 @@
+float mx;
+float my;
+float easing = 0.05;
+float esize = 25.0;
+int box = 30;
+
+void setup() 
+{
+  size(200, 200);
+  noStroke(); 
+  smooth();
+  ellipseMode(CENTER_RADIUS);  
+}
+
+void draw() 
+{ 
+  background(51);
+  
+  if(abs(mouseX - mx) > 0.1) {
+    mx = mx + (mouseX - mx) * easing;
+  }
+  if(abs(mouseY - my) > 0.1) {
+    my = my + (mouseY- my) * easing;
+  }
+  
+  float distance = esize * 2;
+  mx = constrain(mx, box+distance, width-box-distance);
+  my = constrain(my, box+distance, height-box-distance);
+  fill(76);
+  rect(box+esize, box+esize, box*3, box*3);
+  fill(255);  
+  ellipse(mx, my, esize, esize);
+}