Changed the naming conventions (read more)

I've changed some naming concentions in the lua APIs. I've also made a few
other tweaks, like region_pager_api.cpp delegating to the passed
RegionPager object. This won't explicitly run, becuase there's still a few
more changes needed.

common/map/region_pager_api.cpp

@@ -0,0 +1,110 @@
+/* Copyright: (c) Kayne Ruse 2014
+ * 
+ * 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 "region_pager_api.hpp"
+
+#include "region_pager_lua.hpp"
+#include "region.hpp"
+
+#include <stdexcept>
+#include <string>
+
+//DOCS: These functions are just wrappers for the RegionPagerLua class
+
+static int setTile(lua_State* L) {
+	RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, 1));
+	int ret = pager->SetTile(lua_tointeger(L, 2), lua_tointeger(L, 3), lua_tointeger(L, 4), lua_tointeger(L, 5));
+	lua_pushinteger(L, ret);
+	return 1;
+}
+
+static int getTile(lua_State* L) {
+	RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, 1));
+	int ret = pager->GetTile(lua_tointeger(L, 2), lua_tointeger(L, 3), lua_tointeger(L, 4));
+	lua_pushinteger(L, ret);
+	return 1;
+}
+
+static int getRegion(lua_State* L) {
+	RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, 1));
+	Region* region = pager->GetRegion(lua_tointeger(L, 2), lua_tointeger(L, 3));
+	lua_pushlightuserdata(L, region);
+	return 1;
+}
+
+static int setDirectory(lua_State* L) {
+	RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, 1));
+	std::string s = pager->SetDirectory(lua_tostring(L, 2));
+	lua_pushstring(L, s.c_str());
+	return 1;
+}
+
+static int getDirectory(lua_State* L) {
+	RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, 1));
+	std::string s = pager->GetDirectory();
+	lua_pushstring(L, s.c_str());
+	return 1;
+}
+
+static int loadRegion(lua_State* L) {
+	RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, 1));
+	Region* region = pager->LoadRegion(lua_tointeger(L, 2), lua_tointeger(L, 3));
+	lua_pushlightuserdata(L, region);
+	return 1;
+}
+
+static int saveRegion(lua_State* L) {
+	RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, 1));
+	Region* region = pager->SaveRegion(lua_tointeger(L, 2), lua_tointeger(L, 3));
+	lua_pushlightuserdata(L, region);
+	return 1;
+}
+
+static int createRegion(lua_State* L) {
+	RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, 1));
+	Region* region = pager->CreateRegion(lua_tointeger(L, 2), lua_tointeger(L, 3));
+	lua_pushlightuserdata(L, region);
+	return 1;
+}
+
+static int unloadRegion(lua_State* L) {
+	RegionPagerLua* pager = reinterpret_cast<RegionPagerLua*>(lua_touserdata(L, 1));
+	pager->UnloadRegion(lua_tointeger(L, 2), lua_tointeger(L, 3));
+	return 0;
+}
+
+static const luaL_Reg pagerlib[] = {
+	{"SetTile", setTile},
+	{"GetTile", getTile},
+	{"GetRegion", getRegion},
+	{"SetDirectory", setDirectory},
+	{"GetDirectory", getDirectory},
+	{"LoadRegion", loadRegion},
+	{"SaveRegion", saveRegion},
+	{"CreateRegion", createRegion},
+	{"UnloadRegion", unloadRegion},
+	{nullptr, nullptr}
+};
+
+LUAMOD_API int openRegionPagerAPI(lua_State* L) {
+	luaL_newlib(L, pagerlib);
+	return 1;
+}