270 lines
8.1 KiB
Lua
270 lines
8.1 KiB
Lua
--[[
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Deploy Nodes for Minetest
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Copyright (c) 2012 cornernote, Brett O'Donnell <cornernote@gmail.com>
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Source Code: https://github.com/cornernote/minetest-deploy_nodes
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License: BSD-3-Clause https://raw.github.com/cornernote/minetest-deploy_nodes/master/LICENSE
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SPIRAL
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]]--
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-- expose api
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deploy_spiral = {}
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-- deploy
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deploy_spiral.deploy = function(pos,placer,nodename,width,height,spacer)
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-- set the pos to the center of the node
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pos.x = math.floor(pos.x+0.5)
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pos.y = math.floor(pos.y+0.5)
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pos.z = math.floor(pos.z+0.5)
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height = tonumber(height)-1
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if height < 0 then height = 0 end
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spacer = tonumber(spacer)+1
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if spacer < 1 then spacer = 1 end
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-- check for space
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if deploy_nodes.check_for_space==true then
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for x=width*spacer*-0.5,width*spacer*0.5 do
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for y=0,height-1 do
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for z=width*spacer*-0.5,width*spacer*0.5 do
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if x~=0 or y~=0 or z~=0 then
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local checkpos = {x=pos.x+x,y=pos.y+y,z=pos.z+z}
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local checknode = minetest.get_node(checkpos).name
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if checknode~="air" then
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minetest.chat_send_player(placer:get_player_name(), "[deploy_spiral] no room to build because "..checknode.." is in the way at "..dump(checkpos).."")
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return
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end
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end
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end
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end
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end
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end
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-- remove spiral node
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minetest.remove_node(pos)
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-- build the spiral
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-- spiral matrix - http://rosettacode.org/wiki/Spiral_matrix#Lua
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av, sn = math.abs, function(s) return s~=0 and s/av(s) or 0 end
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local function sindex(z, x) -- returns the value at (x, z) in a spiral that starts at 1 and goes outwards
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if z == -x and z >= x then return (2*z+1)^2 end
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local l = math.max(av(z), av(x))
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return (2*l-1)^2+4*l+2*l*sn(x+z)+sn(z^2-x^2)*(l-(av(z)==l and sn(z)*x or sn(x)*z)) -- OH GOD WHAT
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end
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local function spiralt(side)
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local ret, id, start, stop = {}, 0, math.floor((-side+1)/2), math.floor((side-1)/2)
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for i = 1, side do
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for j = 1, side do
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local id = side^2 - sindex(stop - i + 1,start + j - 1)
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ret[id] = {x=i,z=j}
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end
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end
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return ret
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end
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-- connect the joined parts
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local spiral = spiralt(width)
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local node = {name=nodename}
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local np,lp
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for y=0,height do
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lp = nil
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for _,v in ipairs(spiral) do
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np = {
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x=pos.x+v.x*spacer-spacer-width*spacer*0.5,
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y=pos.y+y,
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z=pos.z+v.z*spacer-spacer-width*spacer*0.5,
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}
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if lp~=nil then
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if lp.x~=np.x then
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if lp.x<np.x then
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for i=lp.x+1,np.x do
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minetest.add_node({x=i, y=np.y, z=np.z}, node)
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end
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else
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for i=np.x,lp.x-1 do
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minetest.add_node({x=i, y=np.y, z=np.z}, node)
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end
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end
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end
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if lp.z~=np.z then
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if lp.z<np.z then
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for i=lp.z+1,np.z do
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minetest.add_node({x=np.x, y=np.y, z=i}, node)
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end
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else
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for i=np.z,lp.z-1 do
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minetest.add_node({x=np.x, y=np.y, z=i}, node)
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end
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end
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end
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end
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lp = np
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end
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end
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end
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-- register
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deploy_spiral.register = function(label,name,material,texture)
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-- small
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minetest.register_node("deploy_spiral:"..name.."_small", {
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description = "Small "..label.." Spiral",
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tiles = {texture.."^deploy_spiral_small.png"},
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groups = {dig_immediate=3},
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after_place_node = function(pos,placer)
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deploy_spiral.deploy(pos,placer,material,3,1,1)
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end,
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})
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minetest.register_craft({
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output = "deploy_spiral:"..name.."_small",
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recipe = {
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{"deploy_spiral:blueprint", material, material},
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},
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})
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-- medium
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minetest.register_node("deploy_spiral:"..name.."_medium", {
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description = "Medium "..label.." Spiral",
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tiles = {texture.."^deploy_spiral_medium.png"},
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groups = {dig_immediate=3},
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after_place_node = function(pos,placer)
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deploy_spiral.deploy(pos,placer,material,6,2,2)
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end,
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})
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minetest.register_craft({
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output = "deploy_spiral:"..name.."_medium",
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recipe = {
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{"deploy_spiral:blueprint", "deploy_spiral:"..name.."_small", "deploy_spiral:"..name.."_small"},
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},
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})
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-- large
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minetest.register_node("deploy_spiral:"..name.."_large", {
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description = "Large "..label.." Spiral",
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tiles = {texture.."^deploy_spiral_large.png"},
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groups = {dig_immediate=3},
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after_place_node = function(pos,placer)
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deploy_spiral.deploy(pos,placer,material,12,4,3)
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end,
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})
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minetest.register_craft({
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output = "deploy_spiral:"..name.."_large",
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recipe = {
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{"deploy_spiral:blueprint", "deploy_spiral:"..name.."_medium", "deploy_spiral:"..name.."_medium"},
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},
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})
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-- arrow
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table.insert(arrows,{"deploy_spiral:"..name.."_arrow", "deploy_spiral:"..name.."_arrow_entity"})
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minetest.register_craftitem("deploy_spiral:"..name.."_arrow", {
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description = label.." Spiral Arrow",
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inventory_image = "deploy_spiral_arrow.png",
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})
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minetest.register_node("deploy_spiral:"..name.."_arrow_box", {
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drawtype = "nodebox",
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node_box = {
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type = "fixed",
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fixed = {
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-- Shaft
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{-6.5/17, -1.5/17, -1.5/17, 6.5/17, 1.5/17, 1.5/17},
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--Spitze
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{-4.5/17, 2.5/17, 2.5/17, -3.5/17, -2.5/17, -2.5/17},
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{-8.5/17, 0.5/17, 0.5/17, -6.5/17, -0.5/17, -0.5/17},
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--Federn
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{6.5/17, 1.5/17, 1.5/17, 7.5/17, 2.5/17, 2.5/17},
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{7.5/17, -2.5/17, 2.5/17, 6.5/17, -1.5/17, 1.5/17},
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{7.5/17, 2.5/17, -2.5/17, 6.5/17, 1.5/17, -1.5/17},
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{6.5/17, -1.5/17, -1.5/17, 7.5/17, -2.5/17, -2.5/17},
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{7.5/17, 2.5/17, 2.5/17, 8.5/17, 3.5/17, 3.5/17},
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{8.5/17, -3.5/17, 3.5/17, 7.5/17, -2.5/17, 2.5/17},
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{8.5/17, 3.5/17, -3.5/17, 7.5/17, 2.5/17, -2.5/17},
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{7.5/17, -2.5/17, -2.5/17, 8.5/17, -3.5/17, -3.5/17},
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}
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},
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tiles = {"deploy_spiral_arrow.png", "deploy_spiral_arrow.png", "deploy_spiral_arrow_back.png", "deploy_spiral_arrow_front.png", "deploy_spiral_arrow_2.png", "deploy_spiral_arrow.png"},
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})
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minetest.register_entity("deploy_spiral:"..name.."_arrow_entity", {
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physical = false,
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timer=0,
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visual = "wielditem",
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visual_size = {x=0.1, y=0.1},
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textures = {"deploy_spiral:"..name.."_arrow_box"},
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lastpos={},
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collisionbox = {0,0,0,0,0,0},
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player = "",
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on_step = function(self, dtime)
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self.timer=self.timer+dtime
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local pos = self.object:getpos()
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local node = minetest.get_node(pos)
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if self.timer>0.2 then
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local objs = minetest.get_objects_inside_radius({x=pos.x,y=pos.y,z=pos.z}, 2)
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for k, obj in pairs(objs) do
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if obj:get_luaentity() ~= nil then
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if obj:get_luaentity().name ~= "deploy_spiral:"..name.."_arrow_entity" and obj:get_luaentity().name ~= "__builtin:item" then
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if self.player ~= "" then
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self.player:setpos(pos)
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self.player:get_inventory():add_item("main", ItemStack("deploy_spiral:"..name.."_arrow"))
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end
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self.object:remove()
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end
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else
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if self.player ~= "" then
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self.player:setpos(pos)
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self.player:get_inventory():add_item("main", ItemStack("deploy_spiral:"..name.."_arrow"))
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end
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self.object:remove()
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end
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end
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end
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if self.lastpos.x~=nil then
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if node.name ~= "air" then
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deploy_spiral.deploy(self.lastpos,self.player,material,3,1,1)
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self.object:remove()
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end
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end
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self.lastpos={x=pos.x, y=pos.y, z=pos.z}
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end,
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})
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minetest.register_craft({
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output = "deploy_spiral:"..name.."_arrow",
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recipe = {
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{"default:stick", "default:stick", "deploy_spiral:"..name.."_small"},
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}
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})
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end
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-- register spirals
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deploy_spiral.register("Dirt","dirt","default:dirt","default_dirt.png")
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deploy_spiral.register("Wood","wood","default:wood","default_wood.png")
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deploy_spiral.register("Brick","brick","default:brick","default_brick.png")
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deploy_spiral.register("Cobble","cobble","default:cobble","default_cobble.png")
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deploy_spiral.register("Stone","stone","default:stone","default_stone.png")
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deploy_spiral.register("Glass","glass","default:glass","default_glass.png")
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-- blueprint
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minetest.register_craftitem("deploy_spiral:blueprint", {
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description = "Spiral Blueprint",
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inventory_image = "deploy_nodes_blueprint.png^deploy_spiral_blueprint.png",
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})
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minetest.register_craft({
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output = "deploy_spiral:blueprint",
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recipe = {
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{"deploy_nodes:blueprint", "deploy_nodes:blueprint", "deploy_nodes:blueprint"},
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{"deploy_nodes:blueprint", "deploy_nodes:blueprint", ""},
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{"deploy_nodes:blueprint", "deploy_nodes:blueprint", ""},
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},
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})
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-- log that we started
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minetest.log("action", "[MOD]"..minetest.get_current_modname().." -- loaded from "..minetest.get_modpath(minetest.get_current_modname()))
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