From 0c2f641c74534054e8aa9a1596c55e075bf8c153 Mon Sep 17 00:00:00 2001
From: Firew0lf <Firew0lf@users.noreply.github.com>
Date: Wed, 19 Aug 2015 01:36:15 +0200
Subject: [PATCH] Added some values in the gfx lib

---
 sdcard/ctruLua/main.lua |  2 +-
 source/gfx.c            | 22 ++++++++++++++++++++--
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/sdcard/ctruLua/main.lua b/sdcard/ctruLua/main.lua
index 8920a89..29147b4 100644
--- a/sdcard/ctruLua/main.lua
+++ b/sdcard/ctruLua/main.lua
@@ -38,4 +38,4 @@ while os.run() do
 	if angle > 2*math.pi then angle = angle - 2*math.pi end
 
 	gfx.render()
-end
\ No newline at end of file
+end
diff --git a/source/gfx.c b/source/gfx.c
index 3feb733..8ef974f 100644
--- a/source/gfx.c
+++ b/source/gfx.c
@@ -89,6 +89,19 @@ static const struct luaL_Reg gfx_lib[] = {
 	{ NULL, NULL }
 };
 
+// constants
+struct { char *name; int value; } gfx_constants[] = {
+	{ "GFX_TOP",       0   },
+	{ "GFX_BOTTOM",    1   },
+	{ "GFX_LEFT",      0   },
+	{ "GFX_RIGHT",     1   },
+	{ "TOP_HEIGHT",    240 },
+	{ "TOP_WIDTH",     400 },
+	{ "BOTTOM_HEIGHT", 240 },
+	{ "BOTTOM_WIDTH",  320 },
+	{ NULL, 0 }
+};
+
 struct { char *name; int (*load)(lua_State *L); } gfx_libs[] = {
 	{ "color", load_color_lib },
 	{ NULL, NULL }
@@ -96,7 +109,12 @@ struct { char *name; int (*load)(lua_State *L); } gfx_libs[] = {
 
 int luaopen_gfx_lib(lua_State *L) {
 	luaL_newlib(L, gfx_lib);
-
+	
+	for (int i = 0; gfx_constants[i].name; i++) {
+		lua_pushinteger(L, gfx_constants[i].value);
+		lua_setfield(L, -2, gfx_constants[i].name);
+	}
+	
 	for (int i = 0; gfx_libs[i].name; i++) {
 		gfx_libs[i].load(L);
 		lua_setfield(L, -2, gfx_libs[i].name);
@@ -107,4 +125,4 @@ int luaopen_gfx_lib(lua_State *L) {
 
 void load_gfx_lib(lua_State *L) {
 	luaL_requiref(L, "ctr.gfx", luaopen_gfx_lib, 0);
-}
\ No newline at end of file
+}