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path: root/mesecons_movestones/init.lua
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-- MOVESTONE

function mesecon:get_movestone_direction(pos)
	getactivated=0
	local lpos
	local getactivated=0
	local rules=mesecon:get_rules("movestone")

	lpos={x=pos.x+1, y=pos.y, z=pos.z}
	for n=1, 3 do
		if mesecon:is_power_on(lpos, rules[n].x, rules[n].y, rules[n].z) then
			return {x=0, y=0, z=-1}
		end
	end

	lpos={x=pos.x-1, y=pos.y, z=pos.z}
	for n=4, 6 do
		if mesecon:is_power_on(lpos, rules[n].x, rules[n].y, rules[n].z) then
			return {x=0, y=0, z=1}
		end
	end

	lpos={x=pos.x, y=pos.y, z=pos.z+1}
	for n=7, 9 do
		if mesecon:is_power_on(lpos, rules[n].x, rules[n].y, rules[n].z) then
			return {x=-1, y=0, z=0}
		end
	end

	lpos={x=pos.x, y=pos.y, z=pos.z-1}
	for n=10, 12 do
		if mesecon:is_power_on(lpos, rules[n].x, rules[n].y, rules[n].z) then
			return {x=1, y=0, z=0}
		end
	end
end

minetest.register_node("mesecons_movestones:movestone", {
	tile_images = {"jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_arrows.png", "jeija_movestone_arrows.png"},
	paramtype2 = "facedir",
	legacy_facedir_simple = true,
	groups = {cracky=3},
    	description="Movestone",
})

minetest.register_entity("mesecons_movestones:movestone_entity", {
	physical = false,
	visual = "sprite",
	textures = {"jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_arrows.png", "jeija_movestone_arrows.png"},
	collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
	visual = "cube",
	--on_activate = function(self, staticdata)
		--self.object:setsprite({x=0,y=0}, 1, 0, true)
		--self.object:setvelocity({x=-3, y=0, z=0})
	--end,

	on_punch = function(self, hitter)
		self.object:remove()
		hitter:get_inventory():add_item("main", "mesecons_movestones:movestone")
	end,

	on_step = function(self, dtime)
		local pos = self.object:getpos()
		local direction=mesecon:get_movestone_direction(pos)

		if not direction then
			minetest.env:place_node(pos, {name="mesecons_movestones:movestone"})
			self.object:remove()
			return
		end

		self.object:setvelocity({x=direction.x*3, y=direction.y*3, z=direction.z*3})

		local lnode = minetest.env:get_node(pos)
		if lnode.name ~= "ignore" and lnode.name ~= "air" and lnode.name ~= "default:water" and lnode.name ~= "default:water_flowing" then
			local newnode
			repeat
				minetest.env:dig_node(pos)
				pos.x=pos.x+direction.x
				pos.y=pos.y+direction.y
				pos.z=pos.z+direction.z
				newnode = {name=lnode.name}
				lnode = minetest.env:get_node(pos)
				minetest.env:place_node(pos, newnode)
				nodeupdate(pos)
			until lnode.name == "ignore" or lnode.name == "air" or lnode.name == "default:water" or lnode.name == "default:water_flowing"
		end
	end
})

minetest.register_craft({
	output = '"mesecons_movestones:movestone" 2',
	recipe = {
		{'"default:stone"', '"default:stone"', '"default:stone"'},
		{'"mesecons:mesecon_off"', '"mesecons:mesecon_off"', '"mesecons:mesecon_off"'},
		{'"default:stone"', '"default:stone"', '"default:stone"'},
	}
})

mesecon:register_on_signal_on(function (pos, node)
	if node.name=="mesecons_movestones:movestone" then
		local direction=mesecon:get_movestone_direction(pos)
		if not direction then return end
		local checknode={}
		local collpos={x=pos.x, y=pos.y, z=pos.z}
		repeat -- Check if it collides with a stopper
			collpos={x=collpos.x+direction.x, y=collpos.y+direction.y, z=collpos.z+direction.z}
			checknode=minetest.env:get_node(collpos)
			if mesecon:is_mvps_stopper(checknode.name) then 
				return
			end
		until checknode.name=="air"
		or checknode.name=="ignore" 
		or checknode.name=="default:water"
		or checknode.name=="default:water_flowing"
		minetest.env:dig_node(pos)
		nodeupdate(pos)
		minetest.env:add_entity(pos, "mesecons_movestones:movestone_entity")
	end
end)




-- STICKY_MOVESTONE

minetest.register_node("mesecons_movestones:sticky_movestone", {
	tile_images = {"jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_sticky_movestone.png", "jeija_sticky_movestone.png"},
	inventory_image = minetest.inventorycube("jeija_sticky_movestone.png", "jeija_movestone_side.png", "jeija_movestone_side.png"),
	paramtype2 = "facedir",
	legacy_facedir_simple = true,
	groups = {cracky=3},
    	description="Sticky Movestone",
})

minetest.register_craft({
	output = '"mesecons_movestones:sticky_movestone" 2',
	recipe = {
		{'"mesecons_materials:glue"', '"mesecons_movestones:movestone"', '"mesecons_materials:glue"'},
	}
})

minetest.register_entity("mesecons_movestones:sticky_movestone_entity", {
	physical = false,
	visual = "sprite",
	textures = {"jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_sticky_movestone.png", "jeija_sticky_movestone.png"},
	collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
	visual = "cube",

	on_punch = function(self, hitter)
		self.object:remove()
		hitter:get_inventory():add_item("main", 'mesecons_movestones:sticky_movestone')
	end,

	on_step = function(self, dtime)
		local pos = self.object:getpos()
		local colp = pos
		local direction=mesecon:get_movestone_direction(colp)

		if not direction then
		--or (minetest.env:get_node_or_nil(pos).name ~="air" 
		--and minetest.env:get_node_or_nil(pos).name ~= nil) then
			minetest.env:place_node(pos, {name="mesecons_movestones:sticky_movestone"})
			self.object:remove()
			return
		end

		self.object:setvelocity({x=direction.x*3, y=direction.y*3, z=direction.z*3})

		pos.x=pos.x+direction.x
		pos.y=pos.y+direction.y
		pos.z=pos.z+direction.z

		local lpos = {x=pos.x, y=pos.y, z=pos.z}
		local lnode = minetest.env:get_node(lpos)
		if lnode.name ~= "ignore" and lnode.name ~= "air" and lnode.name ~= "default:water" and lnode.name ~= "default:water_flowing" then
			local newnode
			repeat
				minetest.env:dig_node(lpos)
				lpos.x=lpos.x+direction.x
				lpos.y=lpos.y+direction.y
				lpos.z=lpos.z+direction.z
				newnode = {name=lnode.name}
				lnode = minetest.env:get_node(lpos)
				minetest.env:place_node(lpos, newnode)
				nodeupdate(lpos)
			until lnode.name == "ignore" or lnode.name == "air" or lnode.name == "default:water" or lnode.name == "default:water_flowing"
		end

		--STICKY
		local lpos = {x=pos.x-direction.x, y=pos.y-direction.y, z=pos.z-direction.z} -- 1 away
		local lnode = minetest.env:get_node(lpos)
		local lpos2 = {x=pos.x-direction.x*2, y=pos.y-direction.y*2, z=pos.z-direction.z*2} -- 2 away
		local lnode2 = minetest.env:get_node(lpos2)

		if lnode.name ~= "ignore" and lnode.name ~= "air" and lnode.name ~= "default:water" and lnode.name ~= "default:water_flowing" then return end
		if lnode2.name == "ignore" or lnode2.name == "air" or lnode2.name == "default:water" or lnode2.name == "default:water_flowing" then return end

		local oldpos = {x=lpos2.x+direction.x, y=lpos2.y+direction.y, z=lpos2.z+direction.z}
		repeat
			minetest.env:place_node(oldpos, {name=minetest.env:get_node(lpos2).name})
			nodeupdate(oldpos)
			oldpos = {x=lpos2.x, y=lpos2.y, z=lpos2.z}
			lpos2.x = lpos2.x-direction.x
			lpos2.y = lpos2.y-direction.y
			lpos2.z = lpos2.z-direction.z
			lnode = minetest.env:get_node(lpos2)
		until lnode.name=="air" or lnode.name=="ignore" or lnode.name=="default:water" or lnode.name=="default:water_flowing"
		minetest.env:dig_node(oldpos)
	end
})

mesecon:register_on_signal_on(function (pos, node)
	if node.name=="mesecons_movestones:sticky_movestone" then
		local direction=mesecon:get_movestone_direction(pos)
		if not direction then return end
		local checknode={}
		local collpos={x=pos.x, y=pos.y, z=pos.z}
		repeat -- Check if it collides with a stopper
			collpos={x=collpos.x+direction.x, y=collpos.y+direction.y, z=collpos.z+direction.z}
			checknode=minetest.env:get_node(collpos)
			if mesecon:is_mvps_stopper(checknode.name) then 
				return 
			end
		until checknode.name=="air"
		or checknode.name=="ignore" 
		or checknode.name=="default:water" 
		or checknode.name=="default:water_flowing" 
		repeat -- Check if it collides with a stopper (pull direction)
			collpos={x=collpos.x-direction.x, y=collpos.y-direction.y, z=collpos.z-direction.z}
			checknode=minetest.env:get_node(collpos)
			if mesecon:is_mvps_stopper(checknode.name) then
				return 
			end
		until checknode.name=="air"
		or checknode.name=="ignore" 
		or checknode.name=="default:water" 
		or checknode.name=="default:water_flowing" 

		minetest.env:dig_node(pos)
		nodeupdate(pos)
		minetest.env:add_entity(pos, "mesecons_movestones:sticky_movestone_entity")
	end
end)

mesecon:add_rules("movestone", {
{x=0,  y=1,  z=-1},
{x=0,  y=0,  z=-1},
{x=0,  y=-1, z=-1},
{x=0,  y=1,  z=1},
{x=0,  y=-1, z=1},
{x=0,  y=0,  z=1},
{x=1,  y=0,  z=0},
{x=1,  y=1,  z=0},
{x=1,  y=-1, z=0},
{x=-1, y=1,  z=0},
{x=-1, y=-1, z=0},
{x=-1, y=0,  z=0}})