From dae9c6d0ef3430618335db5a9efa9d0c82d1d82c Mon Sep 17 00:00:00 2001
From: Shariq Shah <bluerriq@gmail.com>
Date: Mon, 23 Apr 2018 22:29:53 +1000
Subject: [PATCH] Began work on serializing entity physics data to file

---
 README.md                |  3 +++
 src/common/common.h      |  2 ++
 src/game/physics.c       |  1 +
 src/libsymmetry/entity.c | 52 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 58 insertions(+)

diff --git a/README.md b/README.md
index 0117f69..0f2e3be 100644
--- a/README.md
+++ b/README.md
@@ -155,6 +155,8 @@
 
 - ## TODO
 
+	- Work on (yet another)entity refactor before moving on to serialization
+	- Implement collision/physics data serialization, read and write.
 	- Physics forces/torque etc
 	- Implement physics debug visualizations for other primitives and tri mesh shapes
 	- Replace all renderer_check_gl calls with GL_CHECK macro
@@ -173,6 +175,7 @@
 	- Re-order lib folder for linux by putting all libraries in one folder
 	- Figure out a better way for handling libs on linux, current method DOES NOT work on other computers
 	- Fix 30fps bug on windows
+	- Change compilation so that that external libraries are compiled along with the project code(like Urho3d)
 	- Add fallback shader
 	- Implement Game States
 	- Store Materials in new format supported by parser
diff --git a/src/common/common.h b/src/common/common.h
index 9e673e5..b29da09 100644
--- a/src/common/common.h
+++ b/src/common/common.h
@@ -58,6 +58,8 @@ enum Collision_Shape_Type
 	CST_BOX = 0,
 	CST_SPHERE,
 	CST_CYLINDER,
+	CST_CAPSULE,
+	CST_PLANE,
 	CST_TRIMESH,
 	CST_UNKNOWN
 };
diff --git a/src/game/physics.c b/src/game/physics.c
index a73935d..190c03d 100644
--- a/src/game/physics.c
+++ b/src/game/physics.c
@@ -238,6 +238,7 @@ int physics_cs_type_get(Collision_Shape shape)
 	case dSphereClass:   return CST_SPHERE;
 	case dCylinderClass: return CST_CYLINDER; 
 	case dTriMeshClass:  return CST_TRIMESH;
+	case dPlaneClass:    return CST_PLANE;
 	default: return CST_UNKNOWN;
 	}
 }
diff --git a/src/libsymmetry/entity.c b/src/libsymmetry/entity.c
index 4c50bae..b0b0996 100644
--- a/src/libsymmetry/entity.c
+++ b/src/libsymmetry/entity.c
@@ -238,6 +238,58 @@ bool entity_write(struct Entity* entity, struct Parser_Object* object)
 	hashmap_int_set(entity_data, "type", entity->type);
 	hashmap_bool_set(entity_data, "is_listener", entity->is_listener);
 	hashmap_bool_set(entity_data, "renderable", entity->renderable);
+	hashmap_bool_set(entity_data, "has_collision", entity->has_collision);
+
+	if(entity->has_collision)
+	{
+		if(entity->collision.rigidbody)
+			hashmap_bool_set(entity_data, "has_rigidbody", true);
+		else
+			hashmap_bool_set(entity_data, "has_rigidbody", false);
+
+		int shape_type = platform->physics.cs_type_get(entity->collision.collision_shape);
+		hashmap_int_set(entity_data, "collision_shape_type", shape_type);
+		switch(shape_type)
+		{
+		case CST_BOX:
+		{
+			float x, y, z;
+			x = y = z = 0.f;
+			platform->physics.cs_box_params_get(entity->collision.collision_shape, &x, &y, &z);
+			hashmap_float_set(entity_data, "collision_shape_x", x);
+			hashmap_float_set(entity_data, "collision_shape_y", y);
+			hashmap_float_set(entity_data, "collision_shape_z", z);
+		}
+		break;
+		case CST_SPHERE:
+		{
+			float radius = 0.f;
+			platform->physics.cs_sphere_radius_get(entity->collision.collision_shape);
+			hashmap_float_set(entity_data, "collision_shape_radius", radius);
+		}
+		break;
+		case CST_CAPSULE:
+		{
+			float length = 0.f, radius = 0.f;
+			platform->physics.cs_capsule_params_get(entity->collision.collision_shape, &radius, &length);
+			hashmap_float_set(entity_data, "collision_shape_length", length);
+			hashmap_float_set(entity_data, "collision_shape_radius", radius);
+		}
+		break;
+		case CST_PLANE:
+		{
+			float a, b, c, d;
+			platform->physics.cs_plane_params_get(entity->collision.collision_shape, &a, &b, &c, &d);
+			hashmap_float_set(entity_data, "collision_shape_a", a);
+			hashmap_float_set(entity_data, "collision_shape_b", b);
+			hashmap_float_set(entity_data, "collision_shape_c", c);
+			hashmap_float_set(entity_data, "collision_shape_d", d);
+		}
+		break;
+		default: break;
+		}
+
+	}
 
 	struct Entity* parent = entity_get_parent(entity->id);
 	hashmap_str_set(entity_data, "parent", parent ? parent->name  : "NONE");