virtualx-engine/servers/physics_2d/step_2d_sw.h

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/*  step_2d_sw.h                                                         */
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#ifndef STEP_2D_SW_H
#define STEP_2D_SW_H

#include "space_2d_sw.h"

#include "core/templates/local_vector.h"
#include "core/templates/thread_work_pool.h"

class Step2DSW {
	uint64_t _step;

	int iterations = 0;
	real_t delta = 0.0;

	ThreadWorkPool work_pool;

	LocalVector<LocalVector<Body2DSW *>> body_islands;
	LocalVector<LocalVector<Constraint2DSW *>> constraint_islands;
	LocalVector<Constraint2DSW *> all_constraints;

	void _populate_island(Body2DSW *p_body, LocalVector<Body2DSW *> &p_body_island, LocalVector<Constraint2DSW *> &p_constraint_island);
	void _setup_contraint(uint32_t p_constraint_index, void *p_userdata = nullptr);
	void _pre_solve_island(LocalVector<Constraint2DSW *> &p_constraint_island) const;
	void _solve_island(uint32_t p_island_index, void *p_userdata = nullptr) const;
	void _check_suspend(LocalVector<Body2DSW *> &p_body_island) const;

public:
	void step(Space2DSW *p_space, real_t p_delta, int p_iterations);
	Step2DSW();
	~Step2DSW();
};

#endif // STEP_2D_SW_H