Initial commit

depends.txt

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

init.lua

@@ -0,0 +1,152 @@
+
+--Todo make lift go up and down!
+
+minetest.register_node("lifter:lift", {
+	tiles = {"lifter.png"},
+	description = "Lift",
+	drawtype = "normal",
+	paramtype = "light",
+	groups = {crumbly=3},
+	on_rightclick = function(pos, node, player, itemstack, pointed_thing) 
+		local obj = minetest.add_entity(pos, "lifter:travelling_lift")
+		minetest.remove_node(pos)
+		
+		if not player then
+			return
+		end
+		
+		obj:get_luaentity().driver = player
+
+		player:set_attach(obj, "", {x=0, y=15, z=0}, {x=0, y=0, z=0})
+		player:set_eye_offset({x=0, y=6, z=0},{x=0, y=0, z=0})
+	end,
+})
+
+minetest.register_entity("lifter:travelling_lift", {
+	physical = true,
+	collide_with_objects = true,
+	collisionbox = {-0.5,-0.5,-0.5, 0.5,2.5,0.5},
+	visual = "cube",
+	textures = {"lifter.png", "lifter.png", "lifter.png", "lifter.png", "lifter.png", "lifter.png"},
+	--visual_size = {x=1, y=1},
+	
+	driver = nil,
+	direction = 0,
+	
+	on_punch = function(self, dtime)
+	end,
+	
+	on_step = function(self, dtime)
+		local exit = false
+		
+		-- Turn to actual sand when collides to ground or just move
+		local pos = self.object:getpos()
+		local bcp = {x=pos.x, y=pos.y-0.7, z=pos.z} -- Position of bottom center point
+		local bcn = minetest.get_node(bcp)
+		local bcd = minetest.registered_nodes[bcn.name]
+		-- Note: walkable is in the node definition, not in item groups
+		local np = {x=bcp.x, y=bcp.y+1, z=bcp.z}
+		
+		if not self.driver then
+			minetest.add_node(np, {name="lifter:lift"})
+			self.object:remove()
+			nodeupdate(np)
+			return
+		end
+		
+		local ctrl = self.driver:get_player_control()
+		if ctrl.jump then
+			self.direction = 1
+		end
+		if ctrl.sneak then
+			self.direction = -1
+		end
+		if ctrl.aux1 then
+			self.direction = 0
+			self.object:setvelocity({x=0, y=0, z=0})
+		end
+		
+		pos.y = pos.y+1
+		local nex = 1
+		local wnode = minetest.get_node({x=pos.x+1, y=pos.y, z=pos.z})
+		local wbnode = minetest.get_node({x=pos.x+1, y=pos.y-nex, z=pos.z})
+		local snode = minetest.get_node({x=pos.x-1, y=pos.y, z=pos.z})
+		local sbnode = minetest.get_node({x=pos.x-1, y=pos.y-nex, z=pos.z})
+		local anode = minetest.get_node({x=pos.x, y=pos.y, z=pos.z+1})
+		local abnode = minetest.get_node({x=pos.x, y=pos.y-nex, z=pos.z+1})
+		local dnode = minetest.get_node({x=pos.x, y=pos.y, z=pos.z-1})
+		local dbnode = minetest.get_node({x=pos.x, y=pos.y-nex, z=pos.z-1})
+		
+		if self.direction ~= 0 and not ctrl.jump and not ctrl.sneak then
+		 	if (wnode.name == "air" and wbnode.name ~= "air") or 
+		 		(snode.name == "air" and sbnode.name ~= "air") or 
+		 		(anode.name == "air" and abnode.name ~= "air") or 
+		 		(dnode.name == "air" and dbnode.name ~= "air") then
+				self.direction = 0
+				self.object:setvelocity({x=0, y=0, z=0})
+				self.object:setacceleration({x=0, y=0, z=0})
+			end
+		end
+		
+		if wnode.name == "air" and snode.name == "air" and anode.name == "air" and dnode.name == "air" then
+			if self.direction >= 0  then
+				self.direction = 0
+				self.object:setvelocity({x=0, y=0, z=0})
+			else 
+				self.object:setacceleration({x=0, y=-10, z=0})
+			end
+		end
+		
+		local vel = self.object:getvelocity()
+		if vector.equals(vel, {x=0,y=0,z=0}) then
+			if ctrl.up or ctrl.down or ctrl.left or ctrl.right then
+				exit = true
+			end
+			local npos = self.object:getpos()
+			if self.direction == 1 then
+				npos.y = npos.y+0.5
+				if minetest.get_node({x=npos.x, y=npos.y+2.5, z=npos.z}).name ~= "air" then
+					npos.y = npos.y-0.5
+				end
+			end
+			if self.direction == -1 then
+				npos.y = npos.y-1
+				if minetest.get_node(npos).name ~= "air" then
+					npos.y = npos.y+0.5
+				end
+			end
+			self.object:setpos(vector.round(npos))
+		end
+		
+		
+		if exit then
+			-- Create node and remove entity
+			minetest.add_node(np, {name="lifter:lift"})
+			self.object:remove()
+			nodeupdate(np)
+			
+			if self.driver then
+				self.driver:set_detach()
+				self.driver:set_eye_offset({x=0, y=0, z=0},{x=0, y=0, z=0})
+				pos.y = pos.y-0.2
+				self.driver:setpos(pos)
+			end
+			
+			return
+		end
+		
+		-- Set gravity
+		self.object:setacceleration({x=0, y=self.direction*10, z=0})
+	
+	end
+})
+
+minetest.register_craft({
+	output = "lifter:lift",
+	recipe = {
+		{"group:wood", "group:stick", "group:wood"},
+		{"group:wood", "default:mese", "default:wood"},
+		{"group:wood", "group:stick", "group:wood"},
+	},
+})
+