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33 package jmetest.flagrushtut.lesson9.actions;
35 import jmetest.flagrushtut.lesson9.Vehicle;
37 import com.jme.input.action.InputActionEvent;
38 import com.jme.input.action.KeyInputAction;
41 * AccelerateAction defines the action that occurs when the key is pressed to
42 * speed the Vehicle up. It obtains the velocity of the vehicle and
43 * translates the vehicle by this value.
47 public class ForwardAndBackwardAction extends KeyInputAction {
48 public static final int FORWARD = 0;
49 public static final int BACKWARD = 1;
50 //the node to manipulate
52 private int direction;
55 * The vehicle to accelerate is supplied during construction.
56 * @param node the vehicle to speed up.
57 * @param direction Constant either FORWARD or BACKWARD
59 public ForwardAndBackwardAction(Vehicle node, int direction) {
61 this.direction = direction;
65 * the action calls the vehicle's accelerate or brake command which adjusts its velocity.
67 public void performAction(InputActionEvent evt) {
68 if(direction == FORWARD) {
69 node.accelerate(evt.getTime());
70 } else if(direction == BACKWARD){
71 node.brake(evt.getTime());