From 21c908792c19c30d32200713b7ecc9bf0b188eff Mon Sep 17 00:00:00 2001
From: Thomas Rudin <thomas@rudin.io>
Date: Fri, 16 Nov 2018 08:05:42 +0100
Subject: [PATCH] only shoot in warzone

---
 cannon.lua |  1 +
 util.lua   | 15 ++++++++++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/cannon.lua b/cannon.lua
index 9310d39..560490a 100644
--- a/cannon.lua
+++ b/cannon.lua
@@ -1,4 +1,5 @@
 
+
 local register_spacecannon = function(def)
 
 	local entity_texture = "energycube_" .. def.color .. ".png"
diff --git a/util.lua b/util.lua
index 0a9485a..2961acf 100644
--- a/util.lua
+++ b/util.lua
@@ -1,4 +1,4 @@
-
+local has_warzone_mod = minetest.get_modpath("warzone")
 
 spacecannon.update_formspec = function(meta)
 	meta:set_string("formspec", "size[8,2;]" ..
@@ -6,6 +6,19 @@ spacecannon.update_formspec = function(meta)
 end
 
 spacecannon.fire = function(pos, color, speed, range)
+
+
+	if has_warzone_mod then
+		-- check warzone height
+		local min_y = warzone.y_start
+		local max_y = warzone.y_start + warzone.y_height
+
+		if pos.y < min_y or pos.y > max_y then
+			-- not in warzone
+			return
+		end
+	end
+
 	-- check fuel/power
 	local meta = minetest.get_meta(pos)
 	local owner = meta:get_string("owner")