public boolean processGestureEvent(MTGestureEvent ge) {
DragEvent de = (DragEvent) ge;
try {
Body body = (Body) comp.getUserData("box2d");
MouseJoint mouseJoint;
Vector3D to = new Vector3D(de.getTo());
// Un-scale position from mt4j to box2d
PhysicsHelper.scaleDown(to, scale);
switch (de.getId()) {
case DragEvent.GESTURE_STARTED:
comp.sendToFront();
body.wakeUp();
body.setXForm(new Vec2(to.x, to.y), body.getAngle());
mouseJoint = PhysicsHelper.createDragJoint(world, body, to.x, to.y);
comp.setUserData(comp.getID(), mouseJoint);
break;
case DragEvent.GESTURE_UPDATED:
mouseJoint = (MouseJoint) comp.getUserData(comp.getID());
if (mouseJoint != null) {
boolean onCorrectGameSide =
((MTComponent) de.getTarget()).containsPointGlobal(de.getTo());
// System.out.println(((MTComponent)de.getTargetComponent()).getName() + " Contains
// " + to + " -> " + contains);
if (onCorrectGameSide) {
mouseJoint.setTarget(new Vec2(to.x, to.y));
}
}
break;
case DragEvent.GESTURE_ENDED:
mouseJoint = (MouseJoint) comp.getUserData(comp.getID());
if (mouseJoint != null) {
comp.setUserData(comp.getID(), null);
// Only destroy the joint if it isnt already (go through joint list and check)
for (Joint joint = world.getJointList(); joint != null; joint = joint.getNext()) {
JointType type = joint.getType();
switch (type) {
case MOUSE_JOINT:
MouseJoint mj = (MouseJoint) joint;
if (body.equals(mj.getBody1()) || body.equals(mj.getBody2())) {
if (mj.equals(mouseJoint)) {
world.destroyJoint(mj);
}
}
break;
default:
break;
}
}
}
mouseJoint = null;
break;
default:
break;
}
} catch (Exception e) {
System.err.println(e.getMessage());
}
return false;
}
/** Call this to draw shapes and other debug draw data. */
public void drawDebugData() {
if (m_debugDraw == null) {
return;
}
int flags = m_debugDraw.getFlags();
if ((flags & DebugDraw.e_shapeBit) == DebugDraw.e_shapeBit) {
for (Body b = m_bodyList; b != null; b = b.getNext()) {
xf.set(b.getTransform());
for (Fixture f = b.getFixtureList(); f != null; f = f.getNext()) {
if (b.isActive() == false) {
color.set(0.5f, 0.5f, 0.3f);
drawShape(f, xf, color);
} else if (b.getType() == BodyType.STATIC) {
color.set(0.5f, 0.9f, 0.3f);
drawShape(f, xf, color);
} else if (b.getType() == BodyType.KINEMATIC) {
color.set(0.5f, 0.5f, 0.9f);
drawShape(f, xf, color);
} else if (b.isAwake() == false) {
color.set(0.5f, 0.5f, 0.5f);
drawShape(f, xf, color);
} else {
color.set(0.9f, 0.7f, 0.7f);
drawShape(f, xf, color);
}
}
}
}
if ((flags & DebugDraw.e_jointBit) == DebugDraw.e_jointBit) {
for (Joint j = m_jointList; j != null; j = j.getNext()) {
drawJoint(j);
}
}
if ((flags & DebugDraw.e_pairBit) == DebugDraw.e_pairBit) {
color.set(0.3f, 0.9f, 0.9f);
for (Contact c = m_contactManager.m_contactList; c != null; c = c.getNext()) {
// Fixture fixtureA = c.getFixtureA();
// Fixture fixtureB = c.getFixtureB();
//
// fixtureA.getAABB(childIndex).getCenterToOut(cA);
// fixtureB.getAABB().getCenterToOut(cB);
//
// m_debugDraw.drawSegment(cA, cB, color);
}
}
if ((flags & DebugDraw.e_aabbBit) == DebugDraw.e_aabbBit) {
color.set(0.9f, 0.3f, 0.9f);
for (Body b = m_bodyList; b != null; b = b.getNext()) {
if (b.isActive() == false) {
continue;
}
for (Fixture f = b.getFixtureList(); f != null; f = f.getNext()) {
for (int i = 0; i < f.m_proxyCount; ++i) {
FixtureProxy proxy = f.m_proxies[i];
AABB aabb = m_contactManager.m_broadPhase.getFatAABB(proxy.proxyId);
Vec2[] vs = avs.get(4);
vs[0].set(aabb.lowerBound.x, aabb.lowerBound.y);
vs[1].set(aabb.upperBound.x, aabb.lowerBound.y);
vs[2].set(aabb.upperBound.x, aabb.upperBound.y);
vs[3].set(aabb.lowerBound.x, aabb.upperBound.y);
m_debugDraw.drawPolygon(vs, 4, color);
}
}
}
}
if ((flags & DebugDraw.e_centerOfMassBit) == DebugDraw.e_centerOfMassBit) {
for (Body b = m_bodyList; b != null; b = b.getNext()) {
xf.set(b.getTransform());
xf.p.set(b.getWorldCenter());
m_debugDraw.drawTransform(xf);
}
}
if ((flags & DebugDraw.e_dynamicTreeBit) == DebugDraw.e_dynamicTreeBit) {
m_contactManager.m_broadPhase.drawTree(m_debugDraw);
}
}