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Gravity scale per entity

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This commit is contained in:
viktorljung
2015-09-25 00:01:24 +02:00
parent bc6b037923
commit d2301594ce
3 changed files with 84 additions and 68 deletions
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src/game/Physics/PhysicsSystem.cpp
+67 -56
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@@ -12,7 +12,7 @@ void dd::Systems::PhysicsSystem::Initialize()
{
m_ContactListener = new ContactListener(this);
m_Gravity = b2Vec2(0.f, 0.f);
m_Gravity = b2Vec2(0.f, -9.82f);
m_PhysicsWorld = new b2World(m_Gravity);
m_TimeStep = 1.f/60.f;
@@ -50,74 +50,84 @@ bool dd::Systems::PhysicsSystem::SetImpulse(const Events::SetImpulse &event)
void dd::Systems::PhysicsSystem::Update(double dt)
{
for (auto i : m_EntitiesToBodies) {
EntityID entity = i.first;
b2Body* body = i.second;
auto transformComponent = m_World->GetComponent<Components::Transform>(entity);
if (! transformComponent)
continue;
if (body == nullptr) {
//LOG_ERROR("This body should not exist");
continue;
}
if (m_World->GetEntityParent(entity) == 0) { //TODO: Make this work with childs too
b2Vec2 position;
position.x = transformComponent->Position.x;
position.y = transformComponent->Position.y;
float angle = -glm::eulerAngles(transformComponent->Orientation).z;
body->SetTransform(position, angle);
body->SetLinearVelocity(b2Vec2(transformComponent->Velocity.x, transformComponent->Velocity.y));
}
}
for (auto i : m_Impulses) {
i.Body->ApplyLinearImpulse(i.Impulse, i.Point, true);
}
m_Impulses.clear();
m_Accumulator += dt;
while(m_Accumulator >= m_TimeStep)
{
m_PhysicsWorld->Step(m_TimeStep, m_VelocityIterations, m_PositionIterations);
m_Accumulator -= dt;
}
for (auto i : m_EntitiesToBodies) {
EntityID entity = i.first;
b2Body* body = i.second;
auto transformComponent = m_World->GetComponent<Components::Transform>(entity);
if (! transformComponent) {
continue;
LOG_ERROR("RigidBody with no TransformComponent");
}
auto physicsComponent = m_World->GetComponent<Components::Physics>(entity);
if (! physicsComponent) {
continue;
LOG_ERROR("RigidBody with no PhysicsComponent");
}
for (auto i : m_EntitiesToBodies) {
EntityID entity = i.first;
b2Body* body = i.second;
if (body == nullptr) {
LOG_ERROR("This body should not exist");
continue;
}
if (body == nullptr) {
//LOG_ERROR("This body should not exist");
continue;
if (m_World->GetEntityParent(entity) == 0) { //TODO: Make this work with childs too
b2Vec2 position;
position.x = transformComponent->Position.x;
position.y = transformComponent->Position.y;
float angle = -glm::eulerAngles(transformComponent->Orientation).z;
body->SetTransform(position, angle);
body->SetLinearVelocity(b2Vec2(transformComponent->Velocity.x, transformComponent->Velocity.y));
body->SetGravityScale(physicsComponent->GravityScale);
}
}
auto transformComponent = m_World->GetComponent<Components::Transform>(entity);
if (! transformComponent)
continue;
if (m_World->GetEntityParent(entity) == 0) {
b2Vec2 position = body->GetPosition();
transformComponent->Position.x = position.x;
transformComponent->Position.y = position.y;
float angle = body->GetAngle();
for (auto i : m_Impulses) {
i.Body->ApplyLinearImpulse(i.Impulse, i.Point, true);
}
m_Impulses.clear();
transformComponent->Orientation = glm::quat(glm::vec3(0, 0, -angle));
b2Vec2 velocity = body->GetLinearVelocity();
transformComponent->Velocity.x = velocity.x;
transformComponent->Velocity.y = velocity.y;
m_PhysicsWorld->Step(m_TimeStep, m_VelocityIterations, m_PositionIterations);
m_Accumulator -= dt;
for (auto i : m_EntitiesToBodies) {
EntityID entity = i.first;
b2Body* body = i.second;
if (body == nullptr) {
//LOG_ERROR("This body should not exist");
continue;
}
auto transformComponent = m_World->GetComponent<Components::Transform>(entity);
if (! transformComponent)
continue;
if (m_World->GetEntityParent(entity) == 0) {
b2Vec2 position = body->GetPosition();
transformComponent->Position.x = position.x;
transformComponent->Position.y = position.y;
float angle = body->GetAngle();
transformComponent->Orientation = glm::quat(glm::vec3(0, 0, -angle));
b2Vec2 velocity = body->GetLinearVelocity();
transformComponent->Velocity.x = velocity.x;
transformComponent->Velocity.y = velocity.y;
}
}
}
}
@@ -222,6 +232,7 @@ void dd::Systems::PhysicsSystem::CreateBody(EntityID entity)
delete pShape;
body->SetGravityScale(physicsComponent->GravityScale);
m_EntitiesToBodies.insert(std::make_pair(entity, body));
m_BodiesToEntities.insert(std::make_pair(body, entity));
}