initial commit

depends.txt

@@ -0,0 +1 @@
+default

init.lua

@@ -0,0 +1,93 @@
+max_search_distance = 8
+min_search_distance = 2
+search_item = 'default:stone'
+
+-- All type detector
+
+minetest.register_node("mineral_detector:detector", {
+	description = "Mineral Detector",
+	tile_images = {"mineral_detector_none_none_none.png", "default_steel_block.png"},
+	inventory_image = "mineral_detector_inv.png",
+	is_ground_content = true,
+	groups = {crumbly=3},
+	drop = 'mineral_detector:detector 1',
+	metadata_name = "generic",
+	on_construct = function(pos)
+		--local n = minetest.get_node(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("formspec", "field[text;;${text}]")
+	end,
+	on_receive_fields = function(pos, formname, fields, sender)
+		local meta = minetest.get_meta(pos)
+		fields.text = fields.text or ""
+		if fields.text == "" then
+			return
+		end
+		meta:set_string("search_item", fields.text)
+		UpdateDetectorAll(pos, tonumber(meta:get_string("search_distance")), meta:get_string("search_item"))
+	end
+})
+
+minetest.register_craft({
+	output = 'mineral_detector:detector 1',
+	recipe = {
+		{'default:steelblock', 'default:steelblock', 'default:steelblock'},
+		{'default:steelblock', 'default:coalblock', 'default:steelblock'},
+		{'default:steelblock', 'default:coalblock', 'default:steelblock'},
+	}
+})
+
+function UpdateDetectorAll(pos, search_distance, search_item)
+	local search_p = {x=0, y=0, z=0}
+
+	local found = 0
+
+	for p_x=(pos.x-search_distance), (pos.x+search_distance) do
+		for p_y=(pos.y-search_distance), (pos.y+search_distance) do
+			for p_z=(pos.z-search_distance), (pos.z+search_distance) do
+				local search_n = minetest.env:get_node({x=p_x, y=p_y, z=p_z})
+
+				if search_n.name == search_item then
+					found = found + 1
+				end
+			end
+		end
+	end
+	
+	info_text = ("Range: " .. tostring(search_distance) .. " | Found " .. search_item .. " x " .. found)
+
+	local newmeta = minetest.env:get_meta(pos)
+	newmeta:set_string("infotext",info_text)
+	newmeta:set_string("search_distance", tostring(search_distance))
+	newmeta:set_string("search_item", search_item)
+end
+
+minetest.register_on_punchnode(function(pos, node, puncher)
+	if string.match(node.name, "mineral_detector:") ~= nil then
+
+		local meta = minetest.env:get_meta(pos)
+		local search_distance = tonumber(meta:get_string("search_distance"))
+		local search_item = meta:get_string("search_item")
+
+		if search_distance < max_search_distance then
+			search_distance = search_distance + 1
+		else
+			search_distance = min_search_distance
+		end
+
+		if string.match(node.name, "mineral_detector:detector") ~= nil then
+			UpdateDetectorAll(pos, search_distance, search_item)
+		end
+	end
+end)
+
+minetest.register_on_placenode(
+function(pos, newnode, placer)
+	if string.match(newnode.name, "mineral_detector:") ~= nil then
+		if newnode.name == "mineral_detector:detector" then
+			UpdateDetectorAll(pos, min_search_distance, search_item)
+		end
+	end
+end
+)
+