Remove unused variable; create a useshader header to declare useShader function

git-svn-id: http://svn.net-core.org/repos/t-engine4@906 51575b47-30f0-44d4-a5cc-537603b46e54

src/core_lua.c

@@ -32,6 +32,7 @@
 #include "SFMT.h"
 #include "mzip.h"
 #include "main.h"
+#include "useshader.h"
 #include <math.h>
 #include <time.h>
 
@@ -601,7 +602,6 @@ static int sdl_new_tile(lua_State *L)
 	int alpha = luaL_checknumber(L, 13);
 
 	SDL_Color color = {r,g,b};
-	SDL_Color bcolor = {0,0,0};
 	SDL_Surface *txt = TTF_RenderUTF8_Blended(*f, str, color);
 
 	SDL_Surface **s = (SDL_Surface**)lua_newuserdata(L, sizeof(SDL_Surface*));

src/map.c

@@ -29,9 +29,7 @@
 #include "main.h"
 #include "script.h"
 //#include "shaders.h"
-
-extern bool shaders_active;
-extern void useShader(GLuint p, int x, int y, int w, int h, float r, float g, float b, float a);
+#include "useshader.h"
 
 static int map_object_new(lua_State *L)
 {

src/useshader.h

+extern bool shaders_active;
+extern void useShader(GLuint p, int x, int y, int w, int h, float r, float g, float b, float a);