diff --git a/Makefile b/Makefile
index 2bbe7d2..3edeec2 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 
 OUTNAME = mtycoon
 
-CFLAGS = -O0 -Wall -Wextra -g -I./raylib/include -I./lua/include -pipe
+CFLAGS = -O2 -Wall -Wextra -g -I./raylib/include -I./lua/include -pipe
 
 CC = gcc
 
diff --git a/map/converter b/map/converter
index 1dc8042..b555b45 100755
Binary files a/map/converter and b/map/converter differ
diff --git a/script/test.lua b/script/test.lua
index 824dc05..179d947 100644
--- a/script/test.lua
+++ b/script/test.lua
@@ -22,3 +22,8 @@ end
 function on_frame(game)
   
 end
+
+function on_load(game, map)
+  mtprint("loaded map :")
+  mtprint(map)
+end
diff --git a/src/game.c b/src/game.c
index 2de06e9..fb27e54 100644
--- a/src/game.c
+++ b/src/game.c
@@ -58,8 +58,6 @@ int init_game(Game *game){
     return 1;
   }
 
-  load_map(game, 0);
-
   int c_worker = 0;
 
   for(int k = 0; k < 16; k++){
diff --git a/src/lua_inter.c b/src/lua_inter.c
index 63ffbc3..c85b0d7 100644
--- a/src/lua_inter.c
+++ b/src/lua_inter.c
@@ -258,6 +258,29 @@ void lua_onframe(Game *game){
   lua_callloop(game, "on_frame");
 }
 
+void lua_onmapload(Game *game, int map){
+  gl_game = game;
+  for(int i = 0; i < lstate_n; i++){
+    lua_State *L = lstates[i];
+    lua_mkgame(L, game);
+    if(lua_getglobal(L, "on_load") == LUA_TNIL){
+      lua_pop(L, 2);
+      continue;
+    }
+    lua_pushvalue(L, -2);
+    lua_pushinteger(L, map);
+    int ret = lua_pcall(L, 2, 0, 0);
+    if(ret)
+      puts(lua_tostring(L, -1));
+    else{
+      lua_pushliteral(L, "cash");
+      lua_gettable(L, -2);
+      if(lua_isinteger(L, -1))
+        game->cash = lua_tointeger(L, -1);
+    }
+  }
+}
+
 void lua_mt_init(lua_State *L){
   for(int i = 0; i < sizeof(exported_funcs)/sizeof(*exported_funcs); i++)
     lua_register(L, exported_funcs[i].name, exported_funcs[i].fn);
diff --git a/src/lua_inter.h b/src/lua_inter.h
index e91f19e..3a9982d 100644
--- a/src/lua_inter.h
+++ b/src/lua_inter.h
@@ -7,6 +7,8 @@ void lua_ontick(Game *game);
 
 void lua_onframe(Game *game);
 
+void lua_onmapload(Game *game, int map);
+
 void script_init();
 
 void script_clean();
diff --git a/src/main.c b/src/main.c
index 8ef6829..94fb078 100644
--- a/src/main.c
+++ b/src/main.c
@@ -30,6 +30,7 @@ int init(Game *game){
   err |= init_game(game);
   init_ui();
   script_init(game);
+  load_map(game, 0);
   return err;
 }
 
diff --git a/src/map.c b/src/map.c
index 8d21738..dba4539 100644
--- a/src/map.c
+++ b/src/map.c
@@ -10,6 +10,7 @@
 
 #include "types.h"
 #include "draw.h"
+#include "lua_inter.h"
 
 extern MapCollec mapcollec;
 
@@ -39,6 +40,9 @@ int load_map(Game *game, int mapn){
     return 1;
   if(generate_coll(game, mapn))
     return 1;
+
+  lua_onmapload(game, mapn);
+
   return 0;
 }