void GameObject::tick() {
if (!m_HasStarted) {
start();
m_HasStarted = true;
}
if (m_GoToNewPoint) {
CPhysicsObject* physicsComponent = (CPhysicsObject*)getComponent(CPhysicsObject::classTypeID());
if (physicsComponent != 0) {
b2Body* body = physicsComponent->getBody();
float angle = body->GetAngle();
body->SetTransform(m_NewPoint, angle);
}
m_GoToNewPoint = false;
}
for (map<int, Component*>::iterator it = m_Components->begin();
it != m_Components->end();
it++) {
Component* component = it->second;
component->tick();
}
for (set<GameObject*>::iterator it = m_Children->begin();
it != m_Children->end();
it++) {
GameObject* child = *it;
child->tick();
}
}
void GOBall::updateVelocity() {
// get desired move velocity
CController* controller = (CController*)getComponent(CController::classTypeID());
float moveVelocity = controller->getMoveDirection() * VEL_MAX;
// get actual velocity
CPhysicsObject* physicsComponent = (CPhysicsObject*)getComponent(CPhysicsObject::classTypeID());
b2Body* body = physicsComponent->getBody();
b2Vec2 position = body->GetPosition();
b2Vec2 velocity = body->GetLinearVelocity();
// calculate difference and product
float product = velocity.x * moveVelocity;
float difference = moveVelocity - velocity.x;
// if moving, change move velocity
/*if (moveVelocity != 0) {
std::cout << "MOVING\n" << std::flush;
}
else {
std::cout << "NOT MOVING\n" << std::flush;
}*/
if (moveVelocity != 0.0f &&
(product < 0.0f || fabs(velocity.x) < fabs(moveVelocity) )) {
float force = difference * FORCE_CONST;
body->ApplyForce(b2Vec2(force, 0.0f), position);
}
else {
float force = -velocity.x * FORCE_CONST * 0.2f;
body->ApplyForce(b2Vec2(force, 0.0f), position);
}
}
void GOBall::jump() {
CController* controller = (CController*)getComponent(CController::classTypeID());
if (controller->getJump()) {
CPhysicsObject* physicsComponent = (CPhysicsObject*)getComponent(CPhysicsObject::classTypeID());
b2Body* body = physicsComponent->getBody();
b2Vec2 velocity = body->GetLinearVelocity();
body->SetLinearVelocity(b2Vec2(velocity.x, JUMP_CONST));
}
}
void GOBall::tick() {
GameObject::tick();
if (!m_Alive)
return;
m_ScoreObject->updateScore(m_Score);
jump();
updateVelocity();
// sync the position of the physics and graphics objects
CPhysicsObject* physicsComponent = (CPhysicsObject*)getComponent(CPhysicsObject::classTypeID());
b2Body* body = physicsComponent->getBody();
b2Vec2 position = body->GetPosition();
float32 angle = body->GetAngle();
if (position.y < -200)
spawn();
CGraphicsObject* graphicsComponent = (CGraphicsObject*)getComponent(CGraphicsObject::classTypeID());
graphicsComponent->setPosition(position.x, position.y, 0.0f);
}
const b2Vec2& GOBall::getPosition() {
CPhysicsObject* physicsComponent = (CPhysicsObject*)getComponent(CPhysicsObject::classTypeID());
b2Body* body = physicsComponent->getBody();
return body->GetPosition();
}