diff --git a/include/level.h b/include/level.h
index 6a145ba..067f671 100644
--- a/include/level.h
+++ b/include/level.h
@@ -5,9 +5,9 @@
 
 typedef struct Level
 {
-	unsigned char tiles[64 * 64]; /* max level size */
-	unsigned int width;  /* in tiles */
-	unsigned int height; /* in tiles */
+	int width;  /* in tiles */
+	int height; /* in tiles */
+	unsigned char *tiles[]; /* points toward the level content */
 } Level;
 
 void level_step(Level *level);
diff --git a/include/main.h b/include/main.h
index 67a1f00..b682037 100644
--- a/include/main.h
+++ b/include/main.h
@@ -4,6 +4,7 @@
 #ifndef _DEF_MAIN
 #define _DEF_MAIN
 
+int play_level(int level_id);
 void step_event(Player *player, Level *level, Camera *camera);
 void draw_event(Player *player, Level *level, Camera *camera);
 
diff --git a/levels/0.jtmm2 b/levels/0.jtmm2
new file mode 100644
index 0000000..6a15174
--- /dev/null
+++ b/levels/0.jtmm2
@@ -0,0 +1,102 @@
+10
+51
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+1
+0
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+0
+0
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+0
diff --git a/levels/generate_c.lua b/levels/generate_c.lua
new file mode 100755
index 0000000..415b65c
--- /dev/null
+++ b/levels/generate_c.lua
@@ -0,0 +1,45 @@
+#!/usr/bin/env lua
+
+local function read_level(id)
+  local file = io.open(id..".jtmm2")
+  if not file then
+    return nil
+  else
+    local content = {width = nil, height = nil, tiles = {}}
+    local line_nb = 0
+    for line in file:lines() do
+      line_nb = line_nb + 1
+      if line_nb < 3 then
+        if content.width then
+          content.height = tonumber(line)
+        else
+          content.width = tonumber(line)
+        end
+      else
+        table.insert(content.tiles, line)
+      end
+    end
+    file:close()
+    return content
+  end
+end
+
+local function create_structure_c(id)
+  local content = read_level(id)
+  if content then
+    -- tiles
+    io.write("const unsigned char tiles_", id, "[] = {")
+    for i, v in ipairs(content.tiles) do
+      io.write(v, ", ")
+    end
+    io.write("};\n");
+    -- structure
+    io.write("const Level level_", id, " = {\n")
+    io.write("\t.width = ", content.width, ",\n")
+    io.write("\t.height = ", content.height, ",\n")
+    io.write("\t.tiles = &tiles_", id, "\n")
+    io.write("};\n")
+  end
+end
+
+create_structure_c(0)
diff --git a/src/main.c b/src/main.c
index a7edd2b..66eff3f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -14,6 +14,15 @@ int main(void)
 {
 	init(); /* initialize gint */
 
+	/* main game loop */
+	play_level(0);
+
+	/* return to menu */
+	return 1;
+}
+
+int play_level(int level_id)
+{
 	/* create player */
 	Player player = {
 		.pos = {0, 0}
@@ -32,15 +41,12 @@ int main(void)
 		.speed = 0.0005
 	};
 	//vec_cpy(&camera.pos, player.pos);
-
-	/* main game loop */
 	while ((int)camera.pos.x != (int)player.pos.x)
 	{
 		step_event(&player, &level, &camera);
 		draw_event(&player, &level, &camera);
 	}
-	/* return to menu */
-	return 1;
+	return 0;
 }
 
 void step_event(Player *player, Level *level, Camera *camera)