Chaser easing sketch w/ README update

other/Chaser/Chaser.pyde

@@ -0,0 +1,74 @@
+import random, time
+
+def setup():
+    size(1000, 1000)
+    frameRate(60*1)
+    noLoop()
+    global Mover
+    fromx, fromy = 0, height/2
+    tox, toy = width, height
+    Mover = MovingPoint(fromx, fromy, tox, toy)
+    ellipse(fromx, fromy, 10, 10)
+    ellipse(tox, toy, 10, 10)
+
+class MovingPoint():
+    def __init__(self, x, y, newx=None, newy=None):
+        self.x, self.y = x, y
+        self.duration = 100
+        if newx == None or newy == None:
+            if not newx == None and newy == None:
+                print("newx and newy not set properly ({})".format((newx, newy)))
+            self.running = False
+        else:
+            self.start(newx, newy)
+    
+    # Function that begins the movement of the point
+    def start(self, newx, newy):
+        self.frame = 0
+        self.oldx, self.oldy = self.x, self.y
+        self.newx, self.newy = newx, newy
+        self.running = True
+    
+    # Function that ends the movement of the point
+    def end(self):
+        self.frame = self.duration
+        self.oldx, self.oldy, self.newx, self.newy = 0, 0, 0, 0
+        self.running = False
+    
+    def tick(self):
+        if self.running:
+            self.frame += 1
+            self.x = self.easeInQuart(self.frame, self.oldx, self.newx-self.oldx, self.duration)
+            self.y = self.easeInQuart(self.frame, self.oldy, self.newy-self.oldy, self.duration)
+            if self.frame >= self.duration:
+                print("finished")
+                self.end()
+        ellipse(self.x, self.y, 1, 1)
+    
+    def isRunning(self):
+        return self.running
+    
+    # t=Current Time b=Start Value c=Change in Value d=Duration
+    def easeInQuart(self, t, b, c, d):
+            t, d = float(t), float(d)
+            t = t / d
+            return c * t * t * t * t + b
+
+def reset():
+    old = g.fillColor
+    fill(204, 204, 204)
+    rect(0, 0, width, height)
+    fill(old)
+
+def draw():
+    global Mover
+    if Mover.isRunning():
+        Mover.tick()
+    else:
+        x, y = random.randint(0, width), random.randint(0, height)
+        print("Going to {}".format((x,y)))
+        Mover.start(x, y)
+
+def mouseClicked():
+    loop()
+