@Override
public void onInit() {
/* Get time */
TimeFloat time = new TimeFloat();
/* Set title */
setTitle("Simple rotate gears demo, pim 2015");
/* Create a debug renderer */
debugRenderer = new DebugRenderer();
/* Load images */
bitmapClock = new BitmapImage("data/images/clock.png");
bitmapSecond = new BitmapImage("data/images/clock_second.png");
bitmapMinute = new BitmapImage("data/images/clock_minute.png");
bitmapHour = new BitmapImage("data/images/clock_hour.png");
/* Create the frame, the motors will be attached to it */
PhysicsStaticBox frame = new PhysicsStaticBox("frame", CLOCK_CENTER, 10, 10);
/* Create the hands, at the current system time */
hand_second = new PhysicsBox("seconds", CLOCK_CENTER, 10, 50, time.getSecondAngle());
hand_minute = new PhysicsBox("minutes", CLOCK_CENTER, 10, 40, time.getMinuteAngle());
hand_hour = new PhysicsBox("hours", CLOCK_CENTER, 10, 30, time.getHourAngle());
/* Prevent collision between hands */
hand_second.setCollisionGroup(-2);
hand_minute.setCollisionGroup(-2);
hand_hour.setCollisionGroup(-2);
/* Create the motors */
motor_seconds =
new PhysicsMotor(frame.getBody(), hand_second.getBody(), frame.getBody().getWorldCenter());
motor_minutes =
new PhysicsMotor(frame.getBody(), hand_minute.getBody(), frame.getBody().getWorldCenter());
/*
* This motor will only be used as a skeleton for the gear.
*/
PhysicsMotor motor_m2h =
new PhysicsMotor(frame.getBody(), hand_hour.getBody(), frame.getBody().getWorldCenter());
/*
* Create the gear between the minute hand and the hour hand
*/
GearJointDef gear_m2h = new GearJointDef();
/* Do the connections */
gear_m2h.bodyA = hand_minute.getBody();
gear_m2h.bodyB = hand_hour.getBody();
gear_m2h.joint1 = motor_minutes.getJoint();
gear_m2h.joint2 = motor_m2h.getJoint();
/*
* Negative ratio because the minute and hour hand rotates the same
* direction
*/
gear_m2h.ratio = -60;
world.createJoint(gear_m2h);
/*
* Start the clock, the second hand is running and the minute hand is
* stopped
*/
motor_seconds.initializeMotor(MOTOR_SPEED_SECOND, 1.0f, true);
motor_minutes.initializeMotor(0.0f, 1.0f, true);
System.out.println("click to switch debug/rendering mode");
}
