System info & network

code/physics/simulation.cpp

@@ -0,0 +1,40 @@
+#include "base.h"
+#include "simulation.h"
+#include "../lib/geometry.h"
+#include "collision.h"
+
+void phy_integrate(phy_world *world, f64 delta_t)
+{
+	for(u32 i = 0; i < world->bodies_count; i++)
+	{
+		phy_body *body = world->bodies + i;
+
+		body->velocity += world->gravity * body->gravity_multiplier * delta_t;
+
+		body->position += body->velocity * delta_t;
+		body->rotation += body->angular_velocity * delta_t;
+	}
+}
+
+
+void phy_simulate(phy_world *world, f64 delta_t)
+{
+	// @Performance: Grouping for optimizations (active/inactive, constraints)
+
+	phy_integrate(world, delta_t);
+
+	u32 max_pairs = 1000; // @Correctness: this should be dynamic and should reuse memory when possible
+	u32 num_pairs = 0;
+	phy_body_pair *pair_list = PHY_ALLOC(phy_body_pair, max_pairs);
+	phy_collisions_broadphase(world, pair_list, max_pairs, &num_pairs);
+
+	u32 max_collisions = 1000;
+	u32 num_collisions = 0;
+	phy_collision *collision_list = PHY_ALLOC(phy_collision, max_collisions);
+	phy_collisions_detection(world, pair_list, minimum(max_pairs, num_pairs), collision_list, max_collisions, &num_collisions);
+
+	phy_collisions_resolution(world, collision_list, minimum(max_collisions, num_collisions));
+
+	PHY_FREE(pair_list);
+	PHY_FREE(collision_list);
+}