Initial Commit

Java/Processing/processing-3.3.6/modes/java/examples/Basics/Input/Easing/Easing.pde

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+/**
+ * Easing. 
+ * 
+ * Move the mouse across the screen and the symbol will follow.  
+ * Between drawing each frame of the animation, the program
+ * calculates the difference between the position of the 
+ * symbol and the cursor. If the distance is larger than
+ * 1 pixel, the symbol moves part of the distance (0.05) from its
+ * current position toward the cursor. 
+ */
+ 
+float x;
+float y;
+float easing = 0.05;
+
+void setup() {
+  size(640, 360); 
+  noStroke();  
+}
+
+void draw() { 
+  background(51);
+  
+  float targetX = mouseX;
+  float dx = targetX - x;
+  x += dx * easing;
+  
+  float targetY = mouseY;
+  float dy = targetY - y;
+  y += dy * easing;
+  
+  ellipse(x, y, 66, 66);
+}