add target with API

mods/ITEMS/REDSTONE/mcl_target/init.lua

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+local S = minetest.get_translator("mcl_target")
+
+mcl_target = {}
+
+function mcl_target.hit(pos, time)
+	minetest.log("error", "Hello")
+	minetest.set_node(pos, {name="mcl_target:target_on"})
+	mesecon.receptor_on(pos, mesecon.rules.alldirs)
+
+	local timer = minetest.get_node_timer(pos)
+	timer:start(time)
+end
+
+minetest.register_node("mcl_target:target_off", {
+	description = S("Target"),
+	--_tt_help = S(""),
+	--_doc_items_longdesc = longdesc,
+	--_doc_items_usagehelp = buttonuse,
+	tiles = {"mcl_target_target_top.png", "mcl_target_target_top.png", "mcl_target_target_side.png"},
+	groups = {hoey = 1},
+	sounds = mcl_sounds.node_sound_dirt_defaults({
+		footstep = {name="default_grass_footstep", gain=0.1},
+	}),
+	mesecons = {
+		receptor = {
+			state = mesecon.state.off,
+			rules = mesecon.rules.alldirs,
+		},
+	},
+	_mcl_blast_resistance = 0.5,
+	_mcl_hardness = 0.5,
+})
+
+minetest.register_node("mcl_target:target_on", {
+	description = S("Target"),
+	_doc_items_create_entry = false,
+	tiles = {"mcl_target_target_top.png", "mcl_target_target_top.png", "mcl_target_target_side.png"},
+	groups = {hoey = 1, not_in_creative_inventory = 1},
+	drop = "mcl_target:target_off",
+	sounds = mcl_sounds.node_sound_dirt_defaults({
+		footstep = {name="default_grass_footstep", gain=0.1},
+	}),
+	on_timer = function(pos, elapsed)
+		local node = minetest.get_node(pos)
+		if node.name == "mcl_target:target_on" then --has not been dug
+			minetest.set_node(pos, {name="mcl_target:target_off"})
+			mesecon.receptor_off(pos, mesecon.rules.alldirs)
+		end
+	end,
+	mesecons = {
+		receptor = {
+			state = mesecon.state.on,
+			rules = mesecon.rules.alldirs,
+		},
+	},
+	_mcl_blast_resistance = 0.5,
+	_mcl_hardness = 0.5,
+})

mods/ITEMS/REDSTONE/mcl_target/mod.conf

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+name = mcl_target
+author = AFCMS
+depends = mesecons, mcl_sounds