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#include "UnityPrefix.h"
#if ENABLE_2D_PHYSICS
#include "Runtime/Physics2D/Physics2DSettings.h"
#include "Runtime/Physics2D/Physics2DManager.h"
#include "Runtime/BaseClasses/Tags.h"
#include "Runtime/BaseClasses/ManagerContext.h"
#include "Runtime/Serialize/TransferFunctions/SerializeTransfer.h"
#include "External/Box2D/Box2D/Box2D.h"
// --------------------------------------------------------------------------
Physics2DSettings::Physics2DSettings (MemLabelId label, ObjectCreationMode mode)
: Super(label, mode)
{
m_VelocityIterations = 8;
m_PositionIterations = 3;
m_Gravity = Vector2f (0, -9.81f);
m_RaycastsHitTriggers = true;
m_LayerCollisionMatrix.resize_initialized (kNumLayers, 0xffffffff);
}
Physics2DSettings::~Physics2DSettings ()
{
}
void Physics2DSettings::InitializeClass ()
{
InitializePhysics2DManager ();
}
void Physics2DSettings::CleanupClass ()
{
CleanupPhysics2DManager ();
}
void Physics2DSettings::Reset ()
{
Super::Reset();
m_VelocityIterations = 8;
m_PositionIterations = 3;
m_Gravity = Vector2f (0, -9.81F);
m_LayerCollisionMatrix.resize_initialized (kNumLayers, 0xffffffff);
}
void Physics2DSettings::AwakeFromLoad(AwakeFromLoadMode awakeMode)
{
Super::AwakeFromLoad (awakeMode);
SetGravity (m_Gravity);
}
void Physics2DSettings::CheckConsistency ()
{
Super::CheckConsistency ();
m_VelocityIterations = std::max (1, m_VelocityIterations);
m_PositionIterations = std::max (1, m_PositionIterations);
}
template<class TransferFunction>
void Physics2DSettings::Transfer (TransferFunction& transfer)
{
Super::Transfer (transfer);
TRANSFER (m_Gravity);
TRANSFER (m_DefaultMaterial);
TRANSFER (m_VelocityIterations);
TRANSFER (m_PositionIterations);
TRANSFER (m_RaycastsHitTriggers);
transfer.Align ();
transfer.Transfer (m_LayerCollisionMatrix, "m_LayerCollisionMatrix", kHideInEditorMask);
}
void Physics2DSettings::SetGravity (const Vector2f& value)
{
m_Gravity = value;
SetDirty ();
GetPhysics2DWorld()->SetGravity(b2Vec2(m_Gravity.x, m_Gravity.y));
if (m_Gravity == Vector2f::zero)
return;
// Wake all dynamic bodies that have non-zero gravity-scale.
for (b2Body* body = GetPhysics2DWorld()->GetBodyList (); body != NULL; body = body->GetNext ())
{
if (body->GetType () == b2_dynamicBody && body->GetGravityScale () != 0.0f)
body->SetAwake (true);
}
}
void Physics2DSettings::SetVelocityIterations (const int velocityIterations)
{
if ( velocityIterations == m_VelocityIterations )
return;
m_VelocityIterations = std::max (1,velocityIterations);
SetDirty ();
}
void Physics2DSettings::SetPositionIterations (const int positionIterations)
{
if ( positionIterations == m_PositionIterations )
return;
m_PositionIterations = std::max (1,positionIterations);
SetDirty ();
}
void Physics2DSettings::IgnoreCollision(int layer1, int layer2, bool ignore)
{
if (layer1 >= kNumLayers || layer2 >= kNumLayers)
{
ErrorString(Format("layer numbers must be between 0 and %d", kNumLayers));
return;
}
Assert (kNumLayers <= m_LayerCollisionMatrix.size());
Assert (kNumLayers <= sizeof(m_LayerCollisionMatrix[0])*8);
if (ignore)
{
m_LayerCollisionMatrix[layer1] &= ~(1<<layer2);
m_LayerCollisionMatrix[layer2] &= ~(1<<layer1);
}
else
{
m_LayerCollisionMatrix[layer1] |= 1<<layer2;
m_LayerCollisionMatrix[layer2] |= 1<<layer1;
}
SetDirty();
}
bool Physics2DSettings::GetIgnoreCollision(int layer1, int layer2) const
{
if (layer1 >= kNumLayers || layer2 >= kNumLayers)
{
ErrorString(Format("layer numbers must be between 0 and %d", kNumLayers));
return false;
}
bool collides = m_LayerCollisionMatrix[layer1] & (1<<layer2);
return !collides;
}
GET_MANAGER (Physics2DSettings)
GET_MANAGER_PTR (Physics2DSettings)
IMPLEMENT_CLASS_HAS_INIT (Physics2DSettings)
IMPLEMENT_OBJECT_SERIALIZE (Physics2DSettings)
#endif // #if ENABLE_2D_PHYSICS
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