Physics2D/PhysWorld2D: Add iteration count control

ChangeLog.md

@@ -63,6 +63,7 @@ Nazara Engine:
 - Add RigidBody2D simulation control (via EnableSimulation and IsSimulationEnabled), which allows to disable physics and collisions at will.
 - ⚠️ LuaInstance no longer load all lua libraries on construction, this is done in the new LoadLibraries method which allows you to excludes some libraries
 - Clock::Restart now returns the elapsed microseconds since construction or last Restart call
+- Add PhysWorld2D::[Get|Set]IterationCount to control how many iterations chipmunk will perform per step.
 
 Nazara Development Kit:
 - Added ImageWidget (#139)

include/Nazara/Physics2D/PhysWorld2D.hpp

@@ -54,6 +54,7 @@ namespace Nz
 			float GetDamping() const;
 			Vector2f GetGravity() const;
 			cpSpace* GetHandle() const;
+			std::size_t GetIterationCount() const;
 			float GetStepSize() const;
 
 			bool NearestBodyQuery(const Vector2f& from, float maxDistance, Nz::UInt32 collisionGroup, Nz::UInt32 categoryMask, Nz::UInt32 collisionMask, RigidBody2D** nearestBody = nullptr);
@@ -69,6 +70,7 @@ namespace Nz
 
 			void SetDamping(float dampingValue);
 			void SetGravity(const Vector2f& gravity);
+			void SetIterationCount(std::size_t iterationCount);
 			void SetStepSize(float stepSize);
 
 			void Step(float timestep);

src/Nazara/Physics2D/PhysWorld2D.cpp

@@ -144,6 +144,11 @@ namespace Nz
 		return m_handle;
 	}
 
+	std::size_t PhysWorld2D::GetIterationCount() const
+	{
+		return cpSpaceGetIterations(m_handle);
+	}
+
 	float PhysWorld2D::GetStepSize() const
 	{
 		return m_stepSize;
@@ -281,6 +286,11 @@ namespace Nz
 		cpSpaceSetGravity(m_handle, cpv(gravity.x, gravity.y));
 	}
 
+	void PhysWorld2D::SetIterationCount(std::size_t iterationCount)
+	{
+		cpSpaceSetIterations(m_handle, int(iterationCount));
+	}
+
 	void PhysWorld2D::SetStepSize(float stepSize)
 	{
 		m_stepSize = stepSize;