From f4d4664318d4244487aff33c0d71aabba5060c52 Mon Sep 17 00:00:00 2001
From: bjorn <tie.372@gmail.com>
Date: Mon, 15 May 2017 23:09:32 -0600
Subject: [PATCH] Body;

---
 src/api/lovr.h        |  1 +
 src/api/physics.c     |  8 ++++++++
 src/api/types/body.c  |  6 ++++++
 src/physics/physics.c | 20 ++++++++++++++++++++
 src/physics/physics.h |  9 +++++++++
 5 files changed, 44 insertions(+)
 create mode 100644 src/api/types/body.c

diff --git a/src/api/lovr.h b/src/api/lovr.h
index 544fc49e..963367ca 100644
--- a/src/api/lovr.h
+++ b/src/api/lovr.h
@@ -16,6 +16,7 @@ int l_lovrTimerInit(lua_State* L);
 extern const luaL_Reg lovrAudio[];
 extern const luaL_Reg lovrController[];
 extern const luaL_Reg lovrBlob[];
+extern const luaL_Reg lovrBody[];
 extern const luaL_Reg lovrEvent[];
 extern const luaL_Reg lovrFilesystem[];
 extern const luaL_Reg lovrFont[];
diff --git a/src/api/physics.c b/src/api/physics.c
index 9243daa6..8b3006d7 100644
--- a/src/api/physics.c
+++ b/src/api/physics.c
@@ -5,6 +5,7 @@ int l_lovrPhysicsInit(lua_State* L) {
   lua_newtable(L);
   luaL_register(L, NULL, lovrPhysics);
   luax_registertype(L, "World", lovrWorld);
+  luax_registertype(L, "Body", lovrBody);
   lovrPhysicsInit();
   return 1;
 }
@@ -14,7 +15,14 @@ int l_lovrPhysicsNewWorld(lua_State* L) {
   return 1;
 }
 
+int l_lovrPhysicsNewBody(lua_State* L) {
+  World* world = luax_checktype(L, 1, World);
+  luax_pushtype(L, Body, lovrBodyCreate(world));
+  return 1;
+}
+
 const luaL_Reg lovrPhysics[] = {
   { "newWorld", l_lovrPhysicsNewWorld },
+  { "newBody", l_lovrPhysicsNewBody },
   { NULL, NULL }
 };
diff --git a/src/api/types/body.c b/src/api/types/body.c
new file mode 100644
index 00000000..1ef18728
--- /dev/null
+++ b/src/api/types/body.c
@@ -0,0 +1,6 @@
+#include "api/lovr.h"
+#include "physics/physics.h"
+
+const luaL_Reg lovrBody[] = {
+  { NULL, NULL }
+};
diff --git a/src/physics/physics.c b/src/physics/physics.c
index 8cf92c4c..7daa4774 100644
--- a/src/physics/physics.c
+++ b/src/physics/physics.c
@@ -73,3 +73,23 @@ void lovrWorldSetSleepingAllowed(World* world, int allowed) {
 void lovrWorldUpdate(World* world, float dt) {
   dWorldQuickStep(world->id, dt);
 }
+
+Body* lovrBodyCreate(World* world) {
+  if (!world) {
+    error("No world specified");
+  }
+
+  Body* body = lovrAlloc(sizeof(Body), lovrBodyDestroy);
+  if (!body) return NULL;
+
+  body->id = dBodyCreate(world->id);
+  body->world = world;
+
+  return body;
+}
+
+void lovrBodyDestroy(const Ref* ref) {
+  Body* body = containerof(ref, Body);
+  dBodyDestroy(body->id);
+  free(body);
+}
diff --git a/src/physics/physics.h b/src/physics/physics.h
index 00b7ac44..d8a523ad 100644
--- a/src/physics/physics.h
+++ b/src/physics/physics.h
@@ -6,6 +6,12 @@ typedef struct {
   dWorldID id;
 } World;
 
+typedef struct {
+  Ref ref;
+  dBodyID id;
+  World* world;
+} Body;
+
 void lovrPhysicsInit();
 void lovrPhysicsDestroy();
 
@@ -20,3 +26,6 @@ void lovrWorldSetAngularDamping(World* world, float damping, float threshold);
 int lovrWorldIsSleepingAllowed(World* world);
 void lovrWorldSetSleepingAllowed(World* world, int allowed);
 void lovrWorldUpdate(World* world, float dt);
+
+Body* lovrBodyCreate();
+void lovrBodyDestroy(const Ref* ref);