Cocos2d Box2d contact listener call different method in collided object
- by roma86
I have the building object, wen it hit with other, i want to call some method inside it.
Building.mm
-(void)printTest
{
NSLog(@"printTest method work correctly");
}
in my ContactListener i trying to call it so:
ContactListener.mm
#import "ContactListener.h"
#import "Building.h"
void ContactListener::BeginContact(b2Contact* contact)
{
b2Body* bodyA = contact->GetFixtureA()->GetBody();
b2Body* bodyB = contact->GetFixtureB()->GetBody();
Building *buildA = (Building *)bodyA->GetUserData();
Building *buildB = (Building *)bodyB->GetUserData();
if (buildB.tag == 1) {
NSLog(@"tag == 1");
}
if (buildA.tag == 2) {
NSLog(@"tag == 2");
[buildA printTest];
}
}
NSLog(@"tag == 2"); work correctly, but [buildA printTest]; get error
Terminating app due to uncaught exception
'NSInvalidArgumentException', reason: '-[CCSprite printTest]:
unrecognized selector sent to instance 0x18595f0'
Obviously I'm referring to the wrong object.
How i can get different method and property in contacted objects from contactlistener class? Thanks.
