Initial Commit

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

@@ -0,0 +1,64 @@
+/**
+ * Mouse Functions. 
+ * 
+ * Click on the box and drag it across the screen. 
+ */
+ 
+float bx;
+float by;
+int boxSize = 75;
+boolean overBox = false;
+boolean locked = false;
+float xOffset = 0.0; 
+float yOffset = 0.0; 
+
+void setup() {
+  size(640, 360);
+  bx = width/2.0;
+  by = height/2.0;
+  rectMode(RADIUS);  
+}
+
+void draw() { 
+  background(0);
+  
+  // Test if the cursor is over the box 
+  if (mouseX > bx-boxSize && mouseX < bx+boxSize && 
+      mouseY > by-boxSize && mouseY < by+boxSize) {
+    overBox = true;  
+    if(!locked) { 
+      stroke(255); 
+      fill(153);
+    } 
+  } else {
+    stroke(153);
+    fill(153);
+    overBox = false;
+  }
+  
+  // Draw the box
+  rect(bx, by, boxSize, boxSize);
+}
+
+void mousePressed() {
+  if(overBox) { 
+    locked = true; 
+    fill(255, 255, 255);
+  } else {
+    locked = false;
+  }
+  xOffset = mouseX-bx; 
+  yOffset = mouseY-by; 
+
+}
+
+void mouseDragged() {
+  if(locked) {
+    bx = mouseX-xOffset; 
+    by = mouseY-yOffset; 
+  }
+}
+
+void mouseReleased() {
+  locked = false;
+}