Spawner: Adds LBM to replace mg_villages:plotmarker with advanced_npc:auto_spawner (WIP).

Adds initial scan code (WIP).

init.lua

@@ -32,7 +32,8 @@ dofile(path .. "/trade/prices.lua")
 dofile(path .. "/actions/actions.lua")
 dofile(path .. "/actions/places.lua")
 dofile(path .. "/actions/pathfinder.lua")
-dofile(path .. "/random_data.lua")
 dofile(path .. "/actions/node_registry.lua")
+dofile(path .. "/random_data.lua")
+dofile(path .. "/spawner.lua")
 
 print (S("[Mod] Advanced NPC loaded"))

npc.lua

@@ -964,7 +964,7 @@ mobs:register_mob("advanced_npc:npc", {
 -- Spawn
 mobs:spawn({
 	name = "advanced_npc:npc",
-	nodes = {"mg_villages:plotmarker", "default:stone"},
+	nodes = {"mg_villages:plotmarker"},
 	min_light = 3,
 	active_object_count = 1,
   interval = 5,

spawner.lua

@@ -37,3 +37,128 @@
 -- such as scanning upper floors, spawning families of NPCs and creating relationships
 -- among them, etc. will be for other versions.
 
+-- This is the official list of support building types
+-- from the mg_villages mod
+local mg_villages_supported_building_types = {
+    "house",
+    "farm_full",
+    "farm_tiny",
+    "hut",
+    "lumberjack"
+}
+
+local replace_activated = true
+local max_replace_count = 1
+local replace_count = 0
+
+-- Node registration
+-- This node is currently a slightly modified mg_villages:plotmarker
+minetest.register_node("advanced_npc:auto_spawner", {
+    description = "Automatic NPC Spawner",
+    drawtype = "nodebox",
+    tiles = {"default_stone.png"},
+    paramtype = "light",
+    paramtype2 = "facedir",
+    node_box = {
+        type = "fixed",
+        fixed = {
+            {-0.5+2/16, -0.5, -0.5+2/16,  0.5-2/16, -0.5+2/16, 0.5-2/16},
+        }
+    },
+    groups = {cracky=3,stone=2},
+
+    on_rightclick = function( pos, node, clicker, itemstack, pointed_thing)
+        return mg_villages.plotmarker_formspec( pos, nil, {}, clicker )
+    end,
+
+    on_receive_fields = function(pos, formname, fields, sender)
+        return mg_villages.plotmarker_formspec( pos, formname, fields, sender );
+    end,
+
+    -- protect against digging
+    can_dig = function(pos, player)
+            local meta = minetest.get_meta(pos);
+            if (meta and meta:get_string("village_id") ~= "" and meta:get_int("plot_nr") and meta:get_int("plot_nr") > 0 ) then
+                return false;
+            end
+            return true;
+        end
+})
+
+-- Scans an area for the supported nodes: beds, benches,
+-- furnaces, storage (e.g. chests) and openable (e.g. doors).
+-- Returns a table with these classifications
+local function scan_area(start_pos, end_pos)
+  local result = {
+    bed_type = {},
+    sittable_type = {},
+    furnace_type = {},
+    storage_type = {},
+    openable_type = {}
+  }
+
+  
+
+
+end
+
+-- This function creates a table of the scannable nodes inside
+-- a mg_villages building. It needs the plotmarker position for a start
+-- point and the building_data to get the x, y and z-coordinate size
+-- of the building schematic
+local function scan_mg_villages_building(pos, building_data)
+  -- Get area of the building
+  local x_size = building_data.sizex
+  local y_size = building_data.ysize
+  local z_size = building_data.sizez
+  local start_pos = {x=pos.x, y=pos.y, z=pos.z}
+  local end_pos = {x=pos.x + x_size, y=pos.y + y_size, z=pos.z + z_size}
+
+  return scan_area(start_pos, end_pos)
+end
+
+
+if minetest.get_modpath("mg_villages") ~= nil then
+    -- LBM Registration
+    -- Used to modify plotmarkers and replace them with advanced_npc:auto_spawner
+    minetest.register_lbm({
+        label = "Replace mg_villages:plotmarker with Advanced NPC auto spawners",
+        name = "advanced_npc:mg_villages_plotmarker_replacer",
+        nodenames = {"mg_villages:plotmarker"},
+        run_at_every_load = true,
+        action = function(pos, node)
+            -- Check if replacement is activated
+            if replace_activated then
+                -- Check if limit has been reached
+                if replace_count < max_replace_count then
+                    -- Get the meta at the current position
+                    local meta = minetest.get_meta(pos)
+                    local village_id = meta:get_string("village_id")
+                    local plot_nr = meta:get_int("plot_nr")
+                    local infotext = meta:get_string("infotext")
+                    -- Following line from mg_villages mod, protection.lua
+                    local btype = mg_villages.all_villages[village_id].to_add_data.bpos[plot_nr].btype
+                    minetest.log("All info: "..dump(mg_villages.BUILDINGS[btype]))
+                    local building_data = mg_villages.BUILDINGS[btype]
+                    local building_type = building_data.typ 
+                    -- Check if the building is of the support types
+                    for _,value in pairs(mg_villages_supported_building_types) do
+                      minetest.log("Current value: "..dump(value))
+                        if building_type == value then
+                            -- Replace the plotmarker for auto-spawner
+                            minetest.set_node(pos, {name="advanced_npc:auto_spawner"})
+                            -- Set the old plotmarker meta again
+                            meta:set_string("village_id", village_id)
+                            meta:set_int("plot_nr", plot_nr)
+                            meta:set_string("infotext", infotext)
+                            
+
+                            -- Increase count of modified nodes
+                            replace_count = replace_count + 1
+                        end
+                    end
+                end
+            end
+        end
+    })
+end