reward from chests

init.lua

@@ -31,6 +31,7 @@ dofile(MP.."/steps/waypoint.lua")
 dofile(MP.."/steps/dig.lua")
 dofile(MP.."/steps/build.lua")
 dofile(MP.."/steps/chestput.lua")
+dofile(MP.."/steps/chestreward.lua")
 
 if has_xp_redo_mod then
 	dofile(MP.."/steps/checkxp.lua")

steps/chestput.lua

@@ -66,7 +66,12 @@ missions.register_step({
 	end,
 
 	validate = function(pos, node, player, step, stepdata)
-		-- TODO
+		local meta = minetest.get_meta(stepdata.pos)
+		local inv = meta:get_inventory()
+
+		local removeStack = ItemStack(stepdata.stack)
+
+		return inv:room_for_item("main", removestack)
 	end,
 
 	edit_formspec = function(pos, node, player, stepnumber, step, stepdata)

steps/chestreward.lua

@@ -0,0 +1,138 @@
+
+local get_inv_name = function(player)
+	return "mission_chestreward_" .. player:get_player_name()
+end
+
+local get_inv = function(player)
+	return minetest.get_inventory({type="detached",name=get_inv_name(player)})
+end
+
+local hud = {} -- playerName -> {}
+local remainingItems = {} -- playerName -> ItemStack
+
+-- setup detached inv
+minetest.register_on_joinplayer(function(player)
+	local playername = player:get_player_name()
+	local inv = minetest.create_detached_inventory(get_inv_name(player), {
+		allow_put = function(inv, listname, index, stack, player)
+			if not inv:is_empty(listname) then
+				return 0
+			end
+
+			if listname == "target" and stack:get_name() == "missions:wand_chest" then
+				return stack:get_count()
+			end
+
+			if listname == "main" then
+				return stack:get_count()
+			end
+
+			return 0
+		end,
+		allow_take = function(inv, listname, index, stack, player)
+			-- remove from det inv
+			inv:remove_item(listname, stack)
+			-- give player nothing
+			return 0
+		end,
+		on_put = function(inv, listname, index, stack, player)
+			-- copy stack
+			local playerInv = player:get_inventory()
+			playerInv:add_item("main", stack)
+		end,
+	})
+	inv:set_size("main", 1)
+	inv:set_size("target", 1)
+end)
+
+missions.register_step({
+
+	type = "chestreward",
+	name = "Reward from chest",
+
+	create = function()
+		return {stack="", pos=nil}
+	end,
+
+	validate = function(pos, node, player, step, stepdata)
+		local meta = minetest.get_meta(stepdata.pos)
+		local inv = meta:get_inventory()
+
+		local removeStack = ItemStack(stepdata.stack)
+
+		return inv:contains_item("main", removestack)
+	end,
+
+	edit_formspec = function(pos, node, player, stepnumber, step, stepdata)
+		local inv = get_inv(player)
+		inv:set_stack("main", 1, ItemStack(stepdata.stack))
+
+		local name = ""
+
+		if stepdata.pos then
+			local distance = vector.distance(pos, stepdata.pos)
+			name = name .. "Position(" .. stepdata.pos.x .. "/" .. 
+				stepdata.pos.y .. "/" .. stepdata.pos.z ..") " ..
+				"Distance: " .. math.floor(distance) .. " m"
+		end
+
+		local formspec = "size[8,8;]" ..
+			"label[0,0;Put items in chest]" ..
+
+			"label[0,1;Items]" ..
+			"list[detached:" .. get_inv_name(player) .. ";main;2,1;1,1;]" ..
+
+			"label[3,1;Target]" ..
+			"list[detached:" .. get_inv_name(player) .. ";target;4,1;1,1;]" ..
+
+			"label[0,2;" .. name .. "]" ..
+
+			"list[current_player;main;0,6;8,1;]" ..
+			"button_exit[0,7;8,1;save;Save]"
+
+		return formspec;
+	end,
+
+	update = function(fields, player, step, stepdata, show_editor, show_mission)
+
+		if fields.save then
+			local inv = get_inv(player)
+			local stack = inv:get_stack("main", 1)
+
+			if not stack:is_empty() then
+				stepdata.stack = stack:to_string()
+			end
+
+			stack = inv:get_stack("target", 1)
+
+			if not stack:is_empty() then
+				local meta = stack:get_meta()
+				local pos = minetest.string_to_pos(meta:get_string("pos"))
+
+				stepdata.pos = pos
+			end
+
+			show_mission()
+		end
+	end,
+
+	on_step_enter = function(step, stepdata, player, success, failed)
+		local meta = minetest.get_meta(stepdata.pos)
+		local inv = meta:get_inventory()
+
+		local removeStack = ItemStack(stepdata.stack)
+
+		if inv:contains_item("main", removeStack) then
+			removeStack = inv:remove_item("main", removeStack)
+			local player_inv = player:get_inventory()
+			player_inv:add_item("main", removeStack)
+			success()
+		else
+			failed("Items not available in chest: " .. stepdata.stack)
+		end
+
+	end
+
+})
+
+