Ajout de deux exercices

boucing_ball_with_vector/boucing_ball_with_vector.pde

@@ -0,0 +1,41 @@
+class PVector {
+  float x, y;
+  
+  PVector(float x_, float y_) {
+    x = x_;
+    y = y_;
+  }
+  
+  void add(PVector other) {
+    x += other.x;
+    y += other.y;
+  }
+}
+
+PVector location;
+PVector velocity;
+
+void setup() {
+  size(640, 360);
+  background(255);
+  location = new PVector(100, 100);
+  velocity = new PVector(1, 3.3);
+}
+
+void draw() {
+  background(255);
+  
+  location.add(velocity);
+  
+  if ((location.x > width) || (location.x <= 0)) {
+    velocity.x *= -1;
+  }
+  if ((location.y > height) || (location.y <= 0)) {
+    velocity.y *= -1;
+  }
+  
+  stroke(0);
+  fill(175);
+  ellipse(location.x, location.y, 16, 16);
+  
+}