cruise control activities

docs/coding/cruise-control-3.md

@@ -0,0 +1,28 @@
+# Cruise Control Activity 3
+
+```blocks
+let speed = 0
+function decelerate() {
+    if (speed > -100) {
+        speed = speed - 10
+    }
+}
+function accelerate() {
+    if (speed < 100) {
+        speed = speed + 10
+    }
+}
+function update() {
+    brick.clearScreen()
+    brick.printLine("speed: " + speed, 1)
+    motors.largeBC.setSpeed(speed)
+}
+sensors.touch2.onEvent(TouchSensorEvent.Pressed, function () {
+    accelerate()
+    update()
+})
+sensors.touch1.onEvent(TouchSensorEvent.Pressed, function () {
+    decelerate()
+    update()
+})
+```