--- a/src/common/runtime.cpp	Wed Jul 04 13:54:15 2012 +0200
+++ b/src/common/runtime.cpp	Wed Jul 04 14:40:24 2012 +0200
@@ -1,481 +1,481 @@
-/**
- * Copyright (c) 2006-2012 LOVE Development Team
- *
- * This software is provided 'as-is', without any express or implied
- * warranty.  In no event will the authors be held liable for any damages
- * arising from the use of this software.
- *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
- *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software. If you use this software
- *    in a product, an acknowledgment in the product documentation would be
- *    appreciated but is not required.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
- **/
-
-#include "runtime.h"
-
-// LOVE
-#include "Module.h"
-#include "Object.h"
-#include "Reference.h"
-#include "StringMap.h"
-#include "thread/threads.h"
-
-// STD
-#include <iostream>
-
-namespace love
-{
-
-static thread::Mutex *gcmutex = 0;
-void *_gcmutex = 0;
-unsigned int _gcthread = 0;
-/**
- * Called when an object is collected. The object is released
- * once in this function, possibly deleting it.
- **/
-static int w__gc(lua_State *L)
-{
-	if (!gcmutex)
-	{
-		gcmutex = new thread::Mutex();
-		_gcmutex = (void *) gcmutex;
-	}
-	Proxy *p = (Proxy *)lua_touserdata(L, 1);
-	Object *t = (Object *)p->data;
-	if (p->own)
-	{
-		thread::Lock lock(gcmutex);
-		_gcthread = thread::ThreadBase::threadId();
-		t->release();
-	}
-	return 0;
-}
-
-static int w__tostring(lua_State *L)
-{
-	lua_pushvalue(L, lua_upvalueindex(1));
-	return 1;
-}
-
-static int w__typeOf(lua_State *L)
-{
-	Proxy *p = (Proxy *)lua_touserdata(L, 1);
-	Type t = luax_type(L, 2);
-	luax_pushboolean(L, p->flags[t]);
-	return 1;
-}
-
-static int w__eq(lua_State *L)
-{
-	Proxy *p1 = (Proxy *)lua_touserdata(L, 1);
-	Proxy *p2 = (Proxy *)lua_touserdata(L, 2);
-	luax_pushboolean(L, p1->data == p2->data);
-	return 1;
-}
-
-Reference *luax_refif (lua_State *L, int type)
-{
-	Reference *r = 0;
-
-	// Create a reference only if the test succeeds.
-	if (lua_type(L, -1) == type)
-		r = new Reference(L);
-	else // Pop the value even if it fails (but also if it succeeds).
-		lua_pop(L, 1);
-
-	return r;
-}
-
-void luax_printstack(lua_State *L)
-{
-	for (int i = 1; i<=lua_gettop(L); i++)
-	{
-		std::cout << i << " - " << luaL_typename(L, i) << std::endl;
-	}
-}
-
-bool luax_toboolean(lua_State *L, int idx)
-{
-	return (lua_toboolean(L, idx) != 0);
-}
-
-void luax_pushboolean(lua_State *L, bool b)
-{
-	lua_pushboolean(L, b ? 1 : 0);
-}
-
-bool luax_optboolean(lua_State *L, int idx, bool b)
-{
-	if (lua_isboolean(L, idx) == 1)
-		return (lua_toboolean(L, idx) == 1 ? true : false);
-	return b;
-}
-
-std::string luax_checkstring(lua_State *L, int idx)
-{
-	size_t len;
-	const char *str = luaL_checklstring(L, idx, &len);
-	return std::string(str, len);
-}
-
-void luax_pushstring(lua_State *L, std::string str)
-{
-	lua_pushlstring(L, str.data(), str.size());
-}
-
-int luax_assert_argc(lua_State *L, int min)
-{
-	int argc = lua_gettop(L);
-	if (argc < min)
-		return luaL_error(L, "Incorrect number of arguments. Got [%d], expected at least [%d]", argc, min);
-	return 0;
-}
-
-int luax_assert_argc(lua_State *L, int min, int max)
-{
-	int argc = lua_gettop(L);
-	if (argc < min || argc > max)
-		return luaL_error(L, "Incorrect number of arguments. Got [%d], expected [%d-%d]", argc, min, max);
-	return 0;
-}
-
-int luax_assert_function(lua_State *L, int n)
-{
-	if (!lua_isfunction(L, n))
-		return luaL_error(L, "Argument must be of type \"function\".");
-	return 0;
-}
-
-int luax_register_module(lua_State *L, const WrappedModule &m)
-{
-	// Put a reference to the C++ module in Lua.
-	luax_getregistry(L, REGISTRY_MODULES);
-
-	Proxy *p = (Proxy *)lua_newuserdata(L, sizeof(Proxy));
-	p->own = true;
-	p->data = m.module;
-	p->flags = m.flags;
-
-	luaL_newmetatable(L, m.module->getName());
-	lua_pushvalue(L, -1);
-	lua_setfield(L, -2, "__index");
-	lua_pushcfunction(L, w__gc);
-	lua_setfield(L, -2, "__gc");
-
-	lua_setmetatable(L, -2);
-	lua_setfield(L, -2, m.name); // _modules[name] = proxy
-	lua_pop(L, 1);
-
-	// Gets the love table.
-	luax_insistglobal(L, "love");
-
-	// Create new table for module.
-	lua_newtable(L);
-
-	// Register all the functions.
-	luaL_register(L, 0, m.functions);
-
-	// Register types.
-	if (m.types != 0)
-		for (const lua_CFunction *t = m.types; *t != 0; t++)
-			(*t)(L);
-
-	lua_pushvalue(L, -1);
-	lua_setfield(L, -3, m.name); // love.graphics = table
-	lua_remove(L, -2); // love
-
-	return 1;
-}
-
-int luax_preload(lua_State *L, lua_CFunction f, const char *name)
-{
-	lua_getglobal(L, "package");
-	lua_getfield(L, -1, "preload");
-	lua_pushcfunction(L, f);
-	lua_setfield(L, -2, name);
-	lua_pop(L, 2);
-	return 0;
-}
-
-int luax_register_type(lua_State *L, const char *tname, const luaL_Reg *f)
-{
-	luaL_newmetatable(L, tname);
-
-	// m.__index = m
-	lua_pushvalue(L, -1);
-	lua_setfield(L, -2, "__index");
-
-	// setup gc
-	lua_pushcfunction(L, w__gc);
-	lua_setfield(L, -2, "__gc");
-
-	// Add equality
-	lua_pushcfunction(L, w__eq);
-	lua_setfield(L, -2, "__eq");
-
-	// Add tostring function.
-	lua_pushstring(L, tname);
-	lua_pushcclosure(L, w__tostring, 1);
-	lua_setfield(L, -2, "__tostring");
-
-	// Add tostring to as type() as well.
-	lua_pushstring(L, tname);
-	lua_pushcclosure(L, w__tostring, 1);
-	lua_setfield(L, -2, "type");
-
-	// Add typeOf
-	lua_pushcfunction(L, w__typeOf);
-	lua_setfield(L, -2, "typeOf");
-
-	if (f != 0)
-		luaL_register(L, 0, f);
-
-	lua_pop(L, 1); // Pops metatable.
-	return 0;
-}
-
-int luax_table_insert(lua_State *L, int tindex, int vindex, int pos)
-{
-	if (tindex < 0)
-		tindex = lua_gettop(L)+1+tindex;
-	if (vindex < 0)
-		vindex = lua_gettop(L)+1+vindex;
-	if (pos == -1)
-	{
-		lua_pushvalue(L, vindex);
-		lua_rawseti(L, tindex, lua_objlen(L, tindex)+1);
-		return 0;
-	}
-	else if (pos < 0)
-		pos = lua_objlen(L, tindex)+1+pos;
-	for (int i = lua_objlen(L, tindex)+1; i > pos; i--)
-	{
-		lua_rawgeti(L, tindex, i-1);
-		lua_rawseti(L, tindex, i);
-	}
-	lua_pushvalue(L, vindex);
-	lua_rawseti(L, tindex, pos);
-	return 0;
-}
-
-int luax_register_searcher(lua_State *L, lua_CFunction f, int pos)
-{
-	// Add the package loader to the package.loaders table.
-	lua_getglobal(L, "package");
-
-	if (lua_isnil(L, -1))
-		return luaL_error(L, "Can't register searcher: package table does not exist.");
-
-	lua_getfield(L, -1, "loaders");
-
-	if (lua_isnil(L, -1))
-		return luaL_error(L, "Can't register searcher: package.loaders table does not exist.");
-
-	lua_pushcfunction(L, f);
-	luax_table_insert(L, -2, -1, pos);
-	lua_pop(L, 3);
-	return 0;
-}
-
-void luax_newtype(lua_State *L, const char *name, bits flags, void *data, bool own)
-{
-	Proxy *u = (Proxy *)lua_newuserdata(L, sizeof(Proxy));
-
-	u->data = data;
-	u->flags = flags;
-	u->own = own;
-
-	luaL_newmetatable(L, name);
-	lua_setmetatable(L, -2);
-}
-
-bool luax_istype(lua_State *L, int idx, love::bits type)
-{
-	if (lua_isuserdata(L, idx) == 0)
-		return false;
-
-	return ((((Proxy *)lua_touserdata(L, idx))->flags & type) == type);
-}
-
-int luax_getfunction(lua_State *L, const char *mod, const char *fn)
-{
-	lua_getglobal(L, "love");
-	if (lua_isnil(L, -1)) return luaL_error(L, "Could not find global love!");
-	lua_getfield(L, -1, mod);
-	if (lua_isnil(L, -1)) return luaL_error(L, "Could not find love.%s!", mod);
-	lua_getfield(L, -1, fn);
-	if (lua_isnil(L, -1)) return luaL_error(L, "Could not find love.%s.%s!", mod, fn);
-
-	lua_remove(L, -2); // remove mod
-	lua_remove(L, -2); // remove fn
-	return 0;
-}
-
-int luax_convobj(lua_State *L, int idx, const char *mod, const char *fn)
-{
-	// Convert string to a file.
-	luax_getfunction(L, mod, fn);
-	lua_pushvalue(L, idx); // The initial argument.
-	lua_call(L, 1, 1); // Call the function, one arg, one return value.
-	lua_replace(L, idx); // Replace the initial argument with the new object.
-	return 0;
-}
-
-int luax_convobj(lua_State *L, int idxs[], int n, const char *mod, const char *fn)
-{
-	luax_getfunction(L, mod, fn);
-	for (int i = 0; i < n; i++)
-	{
-		lua_pushvalue(L, idxs[i]); // The arguments.
-	}
-	lua_call(L, n, 1); // Call the function, n args, one return value.
-	lua_replace(L, idxs[0]); // Replace the initial argument with the new object.
-	return 0;
-}
-
-int luax_strtofile(lua_State *L, int idx)
-{
-	return luax_convobj(L, idx, "filesystem", "newFile");
-}
-
-int luax_filetodata(lua_State *L, int idx)
-{
-	return luax_convobj(L, idx, "filesystem", "read");
-}
-
-int luax_insist(lua_State *L, int idx, const char *k)
-{
-	// Convert to absolute index if necessary.
-	if (idx < 0 && idx > LUA_REGISTRYINDEX)
-		idx = lua_gettop(L) + ++idx;
-
-	lua_getfield(L, idx, k);
-
-	// Create if necessary.
-	if (!lua_istable(L, -1))
-	{
-		lua_pop(L, 1); // Pop the non-table.
-		lua_newtable(L);
-		lua_pushvalue(L, -1); // Duplicate the table to leave on top.
-		lua_setfield(L, idx, k); // lua_stack[idx][k] = lua_stack[-1] (table)
-	}
-
-	return 1;
-}
-
-int luax_insistglobal(lua_State *L, const char *k)
-{
-	lua_getglobal(L, k);
-
-	if (!lua_istable(L, -1))
-	{
-		lua_pop(L, 1); // Pop the non-table.
-		lua_newtable(L);
-		lua_pushvalue(L, -1);
-		lua_setglobal(L, k);
-	}
-
-	return 1;
-}
-
-int luax_insistlove(lua_State *L, const char *k)
-{
-	luax_insistglobal(L, "love");
-	luax_insist(L, -1, k);
-
-	// The love table should be replaced with the top stack
-	// item. Only the reqested table should remain on the stack.
-	lua_replace(L, -2);
-
-	return 1;
-}
-
-int luax_getregistry(lua_State *L, Registry r)
-{
-	switch (r)
-	{
-	case REGISTRY_GC:
-		return luax_insistlove(L, "_gc");
-	case REGISTRY_MODULES:
-		return luax_insistlove(L, "_modules");
-	default:
-		return luaL_error(L, "Attempted to use invalid registry.");
-	}
-}
-
-StringMap<Type, TYPE_MAX_ENUM>::Entry typeEntries[] =
-{
-	{"Invalid", INVALID_ID},
-
-	{"Object", OBJECT_ID},
-	{"Data", DATA_ID},
-	{"Module", MODULE_ID},
-
-	// Filesystem
-	{"File", FILESYSTEM_FILE_ID},
-	{"FileData", FILESYSTEM_FILE_DATA_ID},
-
-	// Font
-	{"GlyphData", FONT_GLYPH_DATA_ID},
-	{"Rasterizer", FONT_RASTERIZER_ID},
-
-	// Graphics
-	{"Drawable", GRAPHICS_DRAWABLE_ID},
-	{"Image", GRAPHICS_IMAGE_ID},
-	{"Quad", GRAPHICS_QUAD_ID},
-	{"Font", GRAPHICS_FONT_ID},
-	{"ParticleSystem", GRAPHICS_PARTICLE_SYSTEM_ID},
-	{"SpriteBatch", GRAPHICS_SPRITE_BATCH_ID},
-	{"Canvas", GRAPHICS_CANVAS_ID},
-
-	// Image
-	{"ImageData", IMAGE_IMAGE_DATA_ID},
-
-	// Audio
-	{"Source", AUDIO_SOURCE_ID},
-
-	// Sound
-	{"SoundData", SOUND_SOUND_DATA_ID},
-	{"Decoder", SOUND_DECODER_ID},
-
-	// Physics
-	{"World", PHYSICS_WORLD_ID},
-	{"Contact", PHYSICS_CONTACT_ID},
-	{"Body", PHYSICS_BODY_ID},
-	{"Shape", PHYSICS_SHAPE_ID},
-	{"CircleShape", PHYSICS_CIRCLE_SHAPE_ID},
-	{"PolygonShape", PHYSICS_POLYGON_SHAPE_ID},
-	{"Joint", PHYSICS_JOINT_ID},
-	{"MouseJoint", PHYSICS_MOUSE_JOINT_ID},
-	{"DistanceJoint", PHYSICS_DISTANCE_JOINT_ID},
-	{"PrismaticJoint", PHYSICS_PRISMATIC_JOINT_ID},
-	{"RevoluteJoint", PHYSICS_REVOLUTE_JOINT_ID},
-	{"PulleyJoint", PHYSICS_PULLEY_JOINT_ID},
-	{"GearJoint", PHYSICS_GEAR_JOINT_ID},
-
-	// Thread
-	{"Thread", THREAD_THREAD_ID},
-
-	// The modules themselves. Only add abstracted modules here.
-	{"filesystem", MODULE_FILESYSTEM_ID},
-	{"image", MODULE_IMAGE_ID},
-	{"sound", MODULE_SOUND_ID},
-};
-
-StringMap<Type, TYPE_MAX_ENUM> types(typeEntries, sizeof(typeEntries));
-
-Type luax_type(lua_State *L, int idx)
-{
-	Type t = INVALID_ID;
-	types.find(luaL_checkstring(L, idx), t);
-	return t;
-}
-
-} // love
+/**
+ * Copyright (c) 2006-2012 LOVE Development Team
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ **/
+
+#include "runtime.h"
+
+// LOVE
+#include "Module.h"
+#include "Object.h"
+#include "Reference.h"
+#include "StringMap.h"
+#include "thread/threads.h"
+
+// STD
+#include <iostream>
+
+namespace love
+{
+
+static thread::Mutex *gcmutex = 0;
+void *_gcmutex = 0;
+unsigned int _gcthread = 0;
+/**
+ * Called when an object is collected. The object is released
+ * once in this function, possibly deleting it.
+ **/
+static int w__gc(lua_State *L)
+{
+	if (!gcmutex)
+	{
+		gcmutex = new thread::Mutex();
+		_gcmutex = (void *) gcmutex;
+	}
+	Proxy *p = (Proxy *)lua_touserdata(L, 1);
+	Object *t = (Object *)p->data;
+	if (p->own)
+	{
+		thread::Lock lock(gcmutex);
+		_gcthread = thread::ThreadBase::threadId();
+		t->release();
+	}
+	return 0;
+}
+
+static int w__tostring(lua_State *L)
+{
+	lua_pushvalue(L, lua_upvalueindex(1));
+	return 1;
+}
+
+static int w__typeOf(lua_State *L)
+{
+	Proxy *p = (Proxy *)lua_touserdata(L, 1);
+	Type t = luax_type(L, 2);
+	luax_pushboolean(L, p->flags[t]);
+	return 1;
+}
+
+static int w__eq(lua_State *L)
+{
+	Proxy *p1 = (Proxy *)lua_touserdata(L, 1);
+	Proxy *p2 = (Proxy *)lua_touserdata(L, 2);
+	luax_pushboolean(L, p1->data == p2->data);
+	return 1;
+}
+
+Reference *luax_refif (lua_State *L, int type)
+{
+	Reference *r = 0;
+
+	// Create a reference only if the test succeeds.
+	if (lua_type(L, -1) == type)
+		r = new Reference(L);
+	else // Pop the value even if it fails (but also if it succeeds).
+		lua_pop(L, 1);
+
+	return r;
+}
+
+void luax_printstack(lua_State *L)
+{
+	for (int i = 1; i<=lua_gettop(L); i++)
+	{
+		std::cout << i << " - " << luaL_typename(L, i) << std::endl;
+	}
+}
+
+bool luax_toboolean(lua_State *L, int idx)
+{
+	return (lua_toboolean(L, idx) != 0);
+}
+
+void luax_pushboolean(lua_State *L, bool b)
+{
+	lua_pushboolean(L, b ? 1 : 0);
+}
+
+bool luax_optboolean(lua_State *L, int idx, bool b)
+{
+	if (lua_isboolean(L, idx) == 1)
+		return (lua_toboolean(L, idx) == 1 ? true : false);
+	return b;
+}
+
+std::string luax_checkstring(lua_State *L, int idx)
+{
+	size_t len;
+	const char *str = luaL_checklstring(L, idx, &len);
+	return std::string(str, len);
+}
+
+void luax_pushstring(lua_State *L, std::string str)
+{
+	lua_pushlstring(L, str.data(), str.size());
+}
+
+int luax_assert_argc(lua_State *L, int min)
+{
+	int argc = lua_gettop(L);
+	if (argc < min)
+		return luaL_error(L, "Incorrect number of arguments. Got [%d], expected at least [%d]", argc, min);
+	return 0;
+}
+
+int luax_assert_argc(lua_State *L, int min, int max)
+{
+	int argc = lua_gettop(L);
+	if (argc < min || argc > max)
+		return luaL_error(L, "Incorrect number of arguments. Got [%d], expected [%d-%d]", argc, min, max);
+	return 0;
+}
+
+int luax_assert_function(lua_State *L, int n)
+{
+	if (!lua_isfunction(L, n))
+		return luaL_error(L, "Argument must be of type \"function\".");
+	return 0;
+}
+
+int luax_register_module(lua_State *L, const WrappedModule &m)
+{
+	// Put a reference to the C++ module in Lua.
+	luax_getregistry(L, REGISTRY_MODULES);
+
+	Proxy *p = (Proxy *)lua_newuserdata(L, sizeof(Proxy));
+	p->own = true;
+	p->data = m.module;
+	p->flags = m.flags;
+
+	luaL_newmetatable(L, m.module->getName());
+	lua_pushvalue(L, -1);
+	lua_setfield(L, -2, "__index");
+	lua_pushcfunction(L, w__gc);
+	lua_setfield(L, -2, "__gc");
+
+	lua_setmetatable(L, -2);
+	lua_setfield(L, -2, m.name); // _modules[name] = proxy
+	lua_pop(L, 1);
+
+	// Gets the love table.
+	luax_insistglobal(L, "love");
+
+	// Create new table for module.
+	lua_newtable(L);
+
+	// Register all the functions.
+	luaL_register(L, 0, m.functions);
+
+	// Register types.
+	if (m.types != 0)
+		for (const lua_CFunction *t = m.types; *t != 0; t++)
+			(*t)(L);
+
+	lua_pushvalue(L, -1);
+	lua_setfield(L, -3, m.name); // love.graphics = table
+	lua_remove(L, -2); // love
+
+	return 1;
+}
+
+int luax_preload(lua_State *L, lua_CFunction f, const char *name)
+{
+	lua_getglobal(L, "package");
+	lua_getfield(L, -1, "preload");
+	lua_pushcfunction(L, f);
+	lua_setfield(L, -2, name);
+	lua_pop(L, 2);
+	return 0;
+}
+
+int luax_register_type(lua_State *L, const char *tname, const luaL_Reg *f)
+{
+	luaL_newmetatable(L, tname);
+
+	// m.__index = m
+	lua_pushvalue(L, -1);
+	lua_setfield(L, -2, "__index");
+
+	// setup gc
+	lua_pushcfunction(L, w__gc);
+	lua_setfield(L, -2, "__gc");
+
+	// Add equality
+	lua_pushcfunction(L, w__eq);
+	lua_setfield(L, -2, "__eq");
+
+	// Add tostring function.
+	lua_pushstring(L, tname);
+	lua_pushcclosure(L, w__tostring, 1);
+	lua_setfield(L, -2, "__tostring");
+
+	// Add tostring to as type() as well.
+	lua_pushstring(L, tname);
+	lua_pushcclosure(L, w__tostring, 1);
+	lua_setfield(L, -2, "type");
+
+	// Add typeOf
+	lua_pushcfunction(L, w__typeOf);
+	lua_setfield(L, -2, "typeOf");
+
+	if (f != 0)
+		luaL_register(L, 0, f);
+
+	lua_pop(L, 1); // Pops metatable.
+	return 0;
+}
+
+int luax_table_insert(lua_State *L, int tindex, int vindex, int pos)
+{
+	if (tindex < 0)
+		tindex = lua_gettop(L)+1+tindex;
+	if (vindex < 0)
+		vindex = lua_gettop(L)+1+vindex;
+	if (pos == -1)
+	{
+		lua_pushvalue(L, vindex);
+		lua_rawseti(L, tindex, lua_objlen(L, tindex)+1);
+		return 0;
+	}
+	else if (pos < 0)
+		pos = lua_objlen(L, tindex)+1+pos;
+	for (int i = lua_objlen(L, tindex)+1; i > pos; i--)
+	{
+		lua_rawgeti(L, tindex, i-1);
+		lua_rawseti(L, tindex, i);
+	}
+	lua_pushvalue(L, vindex);
+	lua_rawseti(L, tindex, pos);
+	return 0;
+}
+
+int luax_register_searcher(lua_State *L, lua_CFunction f, int pos)
+{
+	// Add the package loader to the package.loaders table.
+	lua_getglobal(L, "package");
+
+	if (lua_isnil(L, -1))
+		return luaL_error(L, "Can't register searcher: package table does not exist.");
+
+	lua_getfield(L, -1, "loaders");
+
+	if (lua_isnil(L, -1))
+		return luaL_error(L, "Can't register searcher: package.loaders table does not exist.");
+
+	lua_pushcfunction(L, f);
+	luax_table_insert(L, -2, -1, pos);
+	lua_pop(L, 3);
+	return 0;
+}
+
+void luax_newtype(lua_State *L, const char *name, bits flags, void *data, bool own)
+{
+	Proxy *u = (Proxy *)lua_newuserdata(L, sizeof(Proxy));
+
+	u->data = data;
+	u->flags = flags;
+	u->own = own;
+
+	luaL_newmetatable(L, name);
+	lua_setmetatable(L, -2);
+}
+
+bool luax_istype(lua_State *L, int idx, love::bits type)
+{
+	if (lua_isuserdata(L, idx) == 0)
+		return false;
+
+	return ((((Proxy *)lua_touserdata(L, idx))->flags & type) == type);
+}
+
+int luax_getfunction(lua_State *L, const char *mod, const char *fn)
+{
+	lua_getglobal(L, "love");
+	if (lua_isnil(L, -1)) return luaL_error(L, "Could not find global love!");
+	lua_getfield(L, -1, mod);
+	if (lua_isnil(L, -1)) return luaL_error(L, "Could not find love.%s!", mod);
+	lua_getfield(L, -1, fn);
+	if (lua_isnil(L, -1)) return luaL_error(L, "Could not find love.%s.%s!", mod, fn);
+
+	lua_remove(L, -2); // remove mod
+	lua_remove(L, -2); // remove fn
+	return 0;
+}
+
+int luax_convobj(lua_State *L, int idx, const char *mod, const char *fn)
+{
+	// Convert string to a file.
+	luax_getfunction(L, mod, fn);
+	lua_pushvalue(L, idx); // The initial argument.
+	lua_call(L, 1, 1); // Call the function, one arg, one return value.
+	lua_replace(L, idx); // Replace the initial argument with the new object.
+	return 0;
+}
+
+int luax_convobj(lua_State *L, int idxs[], int n, const char *mod, const char *fn)
+{
+	luax_getfunction(L, mod, fn);
+	for (int i = 0; i < n; i++)
+	{
+		lua_pushvalue(L, idxs[i]); // The arguments.
+	}
+	lua_call(L, n, 1); // Call the function, n args, one return value.
+	lua_replace(L, idxs[0]); // Replace the initial argument with the new object.
+	return 0;
+}
+
+int luax_strtofile(lua_State *L, int idx)
+{
+	return luax_convobj(L, idx, "filesystem", "newFile");
+}
+
+int luax_filetodata(lua_State *L, int idx)
+{
+	return luax_convobj(L, idx, "filesystem", "read");
+}
+
+int luax_insist(lua_State *L, int idx, const char *k)
+{
+	// Convert to absolute index if necessary.
+	if (idx < 0 && idx > LUA_REGISTRYINDEX)
+		idx = lua_gettop(L) + ++idx;
+
+	lua_getfield(L, idx, k);
+
+	// Create if necessary.
+	if (!lua_istable(L, -1))
+	{
+		lua_pop(L, 1); // Pop the non-table.
+		lua_newtable(L);
+		lua_pushvalue(L, -1); // Duplicate the table to leave on top.
+		lua_setfield(L, idx, k); // lua_stack[idx][k] = lua_stack[-1] (table)
+	}
+
+	return 1;
+}
+
+int luax_insistglobal(lua_State *L, const char *k)
+{
+	lua_getglobal(L, k);
+
+	if (!lua_istable(L, -1))
+	{
+		lua_pop(L, 1); // Pop the non-table.
+		lua_newtable(L);
+		lua_pushvalue(L, -1);
+		lua_setglobal(L, k);
+	}
+
+	return 1;
+}
+
+int luax_insistlove(lua_State *L, const char *k)
+{
+	luax_insistglobal(L, "love");
+	luax_insist(L, -1, k);
+
+	// The love table should be replaced with the top stack
+	// item. Only the reqested table should remain on the stack.
+	lua_replace(L, -2);
+
+	return 1;
+}
+
+int luax_getregistry(lua_State *L, Registry r)
+{
+	switch (r)
+	{
+	case REGISTRY_GC:
+		return luax_insistlove(L, "_gc");
+	case REGISTRY_MODULES:
+		return luax_insistlove(L, "_modules");
+	default:
+		return luaL_error(L, "Attempted to use invalid registry.");
+	}
+}
+
+StringMap<Type, TYPE_MAX_ENUM>::Entry typeEntries[] =
+{
+	{"Invalid", INVALID_ID},
+
+	{"Object", OBJECT_ID},
+	{"Data", DATA_ID},
+	{"Module", MODULE_ID},
+
+	// Filesystem
+	{"File", FILESYSTEM_FILE_ID},
+	{"FileData", FILESYSTEM_FILE_DATA_ID},
+
+	// Font
+	{"GlyphData", FONT_GLYPH_DATA_ID},
+	{"Rasterizer", FONT_RASTERIZER_ID},
+
+	// Graphics
+	{"Drawable", GRAPHICS_DRAWABLE_ID},
+	{"Image", GRAPHICS_IMAGE_ID},
+	{"Quad", GRAPHICS_QUAD_ID},
+	{"Font", GRAPHICS_FONT_ID},
+	{"ParticleSystem", GRAPHICS_PARTICLE_SYSTEM_ID},
+	{"SpriteBatch", GRAPHICS_SPRITE_BATCH_ID},
+	{"Canvas", GRAPHICS_CANVAS_ID},
+
+	// Image
+	{"ImageData", IMAGE_IMAGE_DATA_ID},
+
+	// Audio
+	{"Source", AUDIO_SOURCE_ID},
+
+	// Sound
+	{"SoundData", SOUND_SOUND_DATA_ID},
+	{"Decoder", SOUND_DECODER_ID},
+
+	// Physics
+	{"World", PHYSICS_WORLD_ID},
+	{"Contact", PHYSICS_CONTACT_ID},
+	{"Body", PHYSICS_BODY_ID},
+	{"Shape", PHYSICS_SHAPE_ID},
+	{"CircleShape", PHYSICS_CIRCLE_SHAPE_ID},
+	{"PolygonShape", PHYSICS_POLYGON_SHAPE_ID},
+	{"Joint", PHYSICS_JOINT_ID},
+	{"MouseJoint", PHYSICS_MOUSE_JOINT_ID},
+	{"DistanceJoint", PHYSICS_DISTANCE_JOINT_ID},
+	{"PrismaticJoint", PHYSICS_PRISMATIC_JOINT_ID},
+	{"RevoluteJoint", PHYSICS_REVOLUTE_JOINT_ID},
+	{"PulleyJoint", PHYSICS_PULLEY_JOINT_ID},
+	{"GearJoint", PHYSICS_GEAR_JOINT_ID},
+
+	// Thread
+	{"Thread", THREAD_THREAD_ID},
+
+	// The modules themselves. Only add abstracted modules here.
+	{"filesystem", MODULE_FILESYSTEM_ID},
+	{"image", MODULE_IMAGE_ID},
+	{"sound", MODULE_SOUND_ID},
+};
+
+StringMap<Type, TYPE_MAX_ENUM> types(typeEntries, sizeof(typeEntries));
+
+Type luax_type(lua_State *L, int idx)
+{
+	Type t = INVALID_ID;
+	types.find(luaL_checkstring(L, idx), t);
+	return t;
+}
+
+} // love