fork from ironzorg's hatches

http://minetest.net/forum/viewtopic.php?id=609

README.txt

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+Harches for Minetest
+
+by: ironzorg 
+forum page: http://minetest.net/forum/viewtopic.php?id=609

depends.txt

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+default

init.lua

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+
+-- Local constants
+-- This _has_ to be set to 1
+local HATCH_OPENED = 1
+-- This has to be != from HATCH_OPENED and is coded on 4 bits
+local HATCH_CLOSED = 0
+
+-- Local Functions
+local on_hatch_punched = function(pos, node, puncher)
+	if (node.name ~= 'hatches:hatch_closed')
+		and (node.name ~= 'hatches:hatch_opened') then
+		return
+	end
+	local state = node.param2
+
+	-- Switch the hatch state when hit
+	if state == HATCH_OPENED then
+		node.name = 'hatches:hatch_closed'
+		node.param2 = HATCH_CLOSED
+	elseif state == HATCH_CLOSED then
+		node.name = 'hatches:hatch_opened'
+		node.param2 = HATCH_OPENED
+	else
+		print('Uninitialized node: ' .. state)
+	end
+
+	minetest.env:add_node(pos, {
+		name = node.name,
+		param2 = node.param2,
+	})
+end
+
+local on_hatch_placed = function(pos, node, placer)
+	if node.name ~= 'hatches:hatch_opened' then
+		return
+	end
+
+	minetest.env:add_node(pos, {
+		name = node.name,
+		param2 = HATCH_OPENED,
+	})
+end
+
+-- Nodes
+-- As long as param2 is set to 1 for open hatches, it doesn't matter to
+-- use drawtype = 'signlike'
+minetest.register_node('hatches:hatch_opened', {
+	drawtype = 'signlike',
+	tile_images = {'hatch.png'},
+	inventory_image = 'hatch.png',
+	sunlight_propagates = true,
+	paramtype = 'light',
+	walkable = false,
+	climbable = true,
+	selection_box = {
+		type = "wallmounted",
+	},
+	material = minetest.digprop_constanttime(1.0),
+	dug_item = 'NodeItem "hatches:hatch_closed" 1',
+})
+
+minetest.register_node('hatches:hatch_closed', {
+	drawtype = 'raillike',
+	tile_images = {'hatch.png'},
+	inventory_image = 'hatch.png',
+	sunlight_propagates = true,
+	paramtype = 'light',
+	walkable = true,
+	selection_box = {
+		type = "fixed",
+		fixed = {-1/2, -1/2, -1/2, 1/2, -2/5, 1/2},
+	},
+	material = minetest.digprop_constanttime(1.0),
+})
+
+-- Crafts
+minetest.register_craft({
+	output = 'NodeItem "hatches:hatch_closed" 2',
+	recipe = {
+		{'node "default:wood" 1', 'node "default:wood" 1', 'node "default:wood" 1'},
+		{'node "default:wood" 1', 'node "default:wood" 1', 'node "default:wood" 1'},
+	},
+})
+
+-- Change the hatch state
+minetest.register_on_punchnode(on_hatch_punched)
+-- Reset param2 for open hatches
+minetest.register_on_placenode(on_hatch_placed)