From a372a5a1b818a0b42e69017eab1310ae04bc513f Mon Sep 17 00:00:00 2001
From: luk3yx <luk3yx@users.noreply.github.com>
Date: Fri, 27 Jul 2018 14:42:09 +1200
Subject: [PATCH] Prevent players getting free mk1 stasis chambers.

---
 chamber.lua |  6 +++++-
 core.lua    | 14 ++++++++++----
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/chamber.lua b/chamber.lua
index 03e6bd4..2b56fdd 100644
--- a/chamber.lua
+++ b/chamber.lua
@@ -134,7 +134,11 @@ stasis.register_chamber = function(name, def)
     end
     
     active_def.after_dig_node = function(pos, oldnode, meta, player)
-        player:get_inventory():add_item('main', stasis.begin_transit(meta.fields.victim, name))
+        player:get_inventory():add_item('main', stasis.begin_transit(
+            meta.fields.victim,
+            replace_with,
+            name .. '_active'
+        ))
     end
     active_def.on_construct = nil
     active_def.on_dig = nil
diff --git a/core.lua b/core.lua
index 5bb9ba2..0174822 100644
--- a/core.lua
+++ b/core.lua
@@ -110,7 +110,7 @@ local formspec_transit_end   = 'size[4,2.5]'
     .. 'button_exit[0,0.5;4,1;leave_chamber;Leave stasis chamber]'
     .. 'button_exit[0,1.5;4,1;quit;Remain in stasis]'
 
-stasis.begin_transit = function(victim, chamber)
+stasis.begin_transit = function(victim, chamber, active_chamber)
     if victim and type(victim) ~= 'string' then
         victim = victim:get_player_name()
     end
@@ -119,6 +119,10 @@ stasis.begin_transit = function(victim, chamber)
         return {name = chamber or 'stasis:chamber'}
     end
     
+    if not active_chamber then
+        active_chamber = chamber .. '_active'
+    end
+    
     minetest.show_formspec(victim, 'stasis:in_transit', formspec_transit_start)
     
     return {
@@ -126,6 +130,7 @@ stasis.begin_transit = function(victim, chamber)
         metadata = minetest.serialize({
             player_in_transit   = victim,
             stasis_chamber      = chamber,
+            active_chamber      = active_chamber,
         }),
     }
 end
@@ -157,8 +162,9 @@ minetest.register_node('stasis:player', {
     
     after_place_node = function(pos, placer, itemstack)
         local metadata = minetest.deserialize(itemstack:get_metadata()) or {}
-        local victim  = metadata.player_in_transit or 'singleplayer'
-        local chamber = metadata.stasis_chamber or 'stasis:chamber'
+        local victim   = metadata.player_in_transit or 'singleplayer'
+        local chamber  = metadata.stasis_chamber or 'stasis:chamber'
+        local active_chamber = metadata.active_chamber or chamber .. '_active'
         local p2 = minetest.get_node(pos).param2
         minetest.set_node(pos, {name = chamber, param2 = p2})
         if minetest.registered_nodes[chamber].on_construct then
@@ -167,7 +173,7 @@ minetest.register_node('stasis:player', {
         local meta = minetest.get_meta(pos)
         meta:set_string('victim', victim)
         if stasis.end_transit(victim, pos) then
-            minetest.swap_node(pos, {name = chamber .. '_active', param2 = p2})
+            minetest.swap_node(pos, {name = active_chamber, param2 = p2})
         end
     end,
 })