void Object::step(const float& t) {
if (!_fixed) {
/*glm::vec3 tOld = _transform._t;
glm::vec3 wOld = _transform._w;
glm::vec3 vLinOld = _linearVelocity;
glm::vec3 vAngOld = _angularVelocity;*/
// note the ORDER OF OPERATIONS
applyLinearImpulse();
applyAngularImpulse();
applyLinearAcceleration(t);
applyAngularAcceleration(t);
/*if (vLinOld != _linearVelocity) {
_transform._t = tOld;
_transform._w = wOld;
_linearVelocity = vLinOld;
_angularVelocity = vAngOld;
applyLinearImpulse();
applyAngularImpulse();
applyLinearAcceleration(t);
applyAngularAcceleration(t);
}*/
}
}
//===========================================
// Box2dPhysics::applyLinearImpulse
//===========================================
void Box2dPhysics::applyLinearImpulse(const Vec2f& impulse) {
if (!m_init)
throw PhysicsException("Instance of Box2dPhysics is not initialised", __FILE__, __LINE__);
applyLinearImpulse(impulse, Vec2f(m_body->GetWorldCenter().x * m_worldUnitsPerMetre,
m_body->GetWorldCenter().y * m_worldUnitsPerMetre));
}
void Character::jump(float vel)
{
float force = (vel/5.0f + 8.0f) * m_body->GetMass();
setYLinearVelocity(0.0f);
applyLinearImpulse(0.0f, force);
for(Entity* ent : m_underfoot)
ent->applyLinearImpulse(0.0f, -force);
}
void init(gecom::Scene* s) override {
gecom::Entity::init(s);
addComponent<gecom::DrawableComponent>(std::make_shared<ProjectileDrawable>(shared_from_this()));
auto phys = std::make_shared<ProjectilePhysics>(shared_from_this(), half_width, half_height);
phys->registerWithWorld(getWorld());
/*gecom::log("proj") << "impulse: " << impulse;*/
phys->applyLinearImpulse(m_dir);
addComponent<gecom::B2PhysicsComponent > (phys);
}
/**
* @brief Body::applyLinearImpulse
* @param f
*/
void Body::applyLinearImpulse(float x, float y)
{
applyLinearImpulse(vec2(x, y));
}