Re-add the original map under the name 1v1

mods/game/maps/maps/1v1/map.lua

@@ -0,0 +1,22 @@
+local map_data = {
+	name = "1v1",
+	size_x = 41,
+	size_y = 31,
+	size_z = 38,
+	
+	barrier_level = 27,
+	
+	spawn_x = nil,
+	spawn_y = nil,
+	spawn_z = nil,
+	
+	start_time = 15,
+
+    scripts = {
+		on_start = "for x=0, 40 do\nfor y=0, 17 do\nfor z=0, 37 do\ncore.set_node({x=x,y=31+y,z=z}, {name=\"default:glass\"})\nend\nend\nend",
+        on_barrier_remove = "",
+        on_end = ""
+    }
+}
+
+return map_data