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Water working, might not work for several bodies

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This commit is contained in:
tleety
2015-09-22 16:06:47 +02:00
parent 1e70e151ee
commit 94401a10ee
3 changed files with 94 additions and 20 deletions
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src/game/Physics/PhysicsSystem.cpp
+49 -14
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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;
@@ -29,6 +29,9 @@ void dd::Systems::PhysicsSystem::Initialize()
void dd::Systems::PhysicsSystem::InitializeWater()
{
b2ParticleSystemDef m_ParticleSystemDef;
m_ParticleSystemDef.radius = 0.1f;
m_ParticleSystem = m_PhysicsWorld->CreateParticleSystem(&m_ParticleSystemDef);
}
@@ -73,8 +76,6 @@ void dd::Systems::PhysicsSystem::Update(double dt)
body->SetTransform(position, angle);
}
}
@@ -97,7 +98,8 @@ void dd::Systems::PhysicsSystem::Update(double dt)
auto transformComponent = m_World->GetComponent<Components::Transform>(entity);
if (! transformComponent)
continue;
if (m_World->GetEntityParent(entity) == 0) {
auto parent = m_World->GetEntityParent(entity);
if (parent == 0) {
b2Vec2 position = body->GetPosition();
transformComponent->Position.x = position.x;
transformComponent->Position.y = position.y;
@@ -109,6 +111,22 @@ void dd::Systems::PhysicsSystem::Update(double dt)
}
}
b2Vec2* positionBuffer = m_ParticleSystem->GetPositionBuffer();
for (auto i : m_EntitiesToParticleHandle) {
EntityID entity = i.first;
b2ParticleHandle* particleH = i.second;
b2Vec2 positionB2 = positionBuffer[particleH->GetIndex()];
glm::vec2 position = glm::vec2(positionB2.x, positionB2.y);
EntityID entityParent = m_World->GetEntityParent(entity);
auto transform = m_World->GetComponent<Components::Transform>(entity);
auto transformParent = m_World->GetComponent<Components::Transform>(entityParent);
transform->Position = glm::vec3(position.x, position.y, -10) - transformParent->Position;
}
}
void dd::Systems::PhysicsSystem::UpdateEntity(double dt, EntityID entity, EntityID parent)
@@ -121,10 +139,13 @@ void dd::Systems::PhysicsSystem::OnEntityCommit(EntityID entity)
auto physicsComponent = m_World->GetComponent<Components::Physics>(entity);
auto waterComponent = m_World->GetComponent<Components::WaterVolume>(entity);
if (physicsComponent && waterComponent) {
LOG_ERROR("Entity has both water and physics component, this is illegal. The police has been alerted.");
return;
}
if (physicsComponent) {
CreateBody(entity);
}
if (waterComponent) {
} else if (waterComponent) {
CreateParticleGroup(entity);
}
}
@@ -182,7 +203,7 @@ void dd::Systems::PhysicsSystem::CreateBody(EntityID entity)
auto boxComponent = m_World->GetComponent<Components::RectangleShape>(entity);
if (boxComponent) {
b2PolygonShape* bShape = new b2PolygonShape();
bShape->SetAsBox(absoluteTransform.Scale.x/2, absoluteTransform.Scale.y/2); //TODO: THIS SUCKS DUDE 4?!?!?!?
bShape->SetAsBox(absoluteTransform.Scale.x/2, absoluteTransform.Scale.y/2);
pShape = bShape;
} else {
auto circleComponent = m_World->GetComponent<Components::CircleShape>(entity);
@@ -194,7 +215,7 @@ void dd::Systems::PhysicsSystem::CreateBody(EntityID entity)
if (absoluteTransform.Scale.x != absoluteTransform.Scale.y && absoluteTransform.Scale.y != absoluteTransform.Scale.z) {
LOG_WARNING("Circles has to be of uniform scale.");
}
pShape->m_radius = absoluteTransform.Scale.x/2; //TODO: THIS ALSO SUCKS 4 WTH
pShape->m_radius = absoluteTransform.Scale.x/2;
}
}
@@ -231,19 +252,33 @@ void dd::Systems::PhysicsSystem::CreateParticleGroup(EntityID e)
b2ParticleGroupDef pd;
b2PolygonShape shape;
shape.SetAsBox(transform->Scale.x, transform->Scale.y);
shape.SetAsBox(transform->Scale.x/2.f, transform->Scale.y/2.f);
pd.shape = &shape;
pd.flags = b2_elasticParticle;
pd.angle = -0.5f;
pd.angularVelocity = 2.0f;
pd.flags = b2_tensileParticle;
pd.linearVelocity = b2Vec2(0, 5.f);
pd.position.Set(transform->Position.x, transform->Position.y);
//pd.particleCount = 10;
//TODO: PUT IN LIST
t_watergroup = m_ParticleSystem->CreateParticleGroup(pd);
LOG_INFO("ParticleCount: %i", t_watergroup->GetParticleCount());
b2Vec2* t_ParticlePositions = m_ParticleSystem->GetPositionBuffer();
for(int i = 0; i < m_ParticleSystem->GetParticleCount(); i++){
{
auto t_waterparticle = m_World->CreateEntity(e);
auto transformChild = m_World->AddComponent<Components::Transform>(t_waterparticle);
auto sprite = m_World->AddComponent<Components::Sprite>(t_waterparticle);
transformChild->Position = glm::vec3(t_ParticlePositions[i].x - transform->Position.x, t_ParticlePositions[i].y - transform->Position.y, -9.5f);
transformChild->Scale = glm::vec3(m_ParticleSystem->GetRadius())/transform->Scale;
sprite->SpriteFile = "Textures/Ball.png";
m_World->CommitEntity(t_waterparticle);
m_EntitiesToParticleHandle.insert(std::make_pair(t_waterparticle, m_ParticleSystem->GetParticleHandleFromIndex(i)));
m_ParticleHandleToEntities.insert(std::make_pair( m_ParticleSystem->GetParticleHandleFromIndex(i), t_waterparticle));
}
}
LOG_INFO("ParticleCount: %i", m_ParticleSystem->GetParticleCount());
}
dd::Systems::PhysicsSystem::~PhysicsSystem()