Add new map forest-4

mods/game/maps/maps/forest-4/map.lua

@@ -0,0 +1,22 @@
+local map_data = {
+        name = "forest-4",
+        size_x = 190,
+        size_y = 69,
+        size_z = 155,
+
+        barrier_level = 65,
+
+        spawn_x = nil,
+        spawn_y = nil,
+        spawn_z = nil,
+
+        start_time = 30,
+
+    scripts = {
+        on_start = "for x=0, 189 do\nfor y=0, 10 do\nfor z=0, 154 do\ncore.set_node({x=x,y=69+y,z=z}, {name=\"air\"})\nend\nend\nend",
+        on_barrier_remove = "",
+        on_end = ""
+   }
+}
+
+return map_data