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33 package com.jme.input.action;
35 import com.jme.math.Vector3f;
36 import com.jme.scene.Spatial;
39 * <code>KeyNodeStrafeLeftAction</code> defines an action that moves a node
40 * along the positive left vector. The speed at which it moves is set and of the
41 * form units per second.
44 * @version $Id: KeyNodeStrafeLeftAction.java,v 1.12 2004/08/22 02:00:34 cep21
47 public class KeyNodeStrafeLeftAction extends KeyInputAction {
48 //the node to manipulate
50 //temporary vector for translation
51 private static final Vector3f tempVa = new Vector3f();
54 * Constructor instantiates a new <code>KeyNodeStrafeLeftAction</code>
58 * the node to move along the left vector.
60 * the speed at which to move the node.
62 public KeyNodeStrafeLeftAction(Spatial node, float speed) {
68 * <code>performAction</code> moves the node along the left vector for a
69 * given distance of speed * time.
71 * @see com.jme.input.action.KeyInputAction#performAction(InputActionEvent)
73 public void performAction(InputActionEvent evt) {
74 Vector3f loc = node.getLocalTranslation();
75 loc.addLocal(node.getLocalRotation().getRotationColumn(0, tempVa)
76 .multLocal(speed * evt.getTime()));
77 node.setLocalTranslation(loc);