Add existing content

1 files changed, 226 insertions, 0 deletions

diff --git a/init.lua b/init.lua
new file mode 100644
index 0000000..d7f44cd
--- /dev/null
+++ b/init.lua
@@ -0,0 +1,226 @@
+invsaw = {}
+
+invsaw.users = {}
+
+local fancy_inv = default.gui_bg..default.gui_bg_img..default.gui_slots
+invsaw.formspec =       "size[11,10]"..fancy_inv..
+			"label[0,0;Input\nmaterial]" ..
+			"list[detached:invsaw_%s;input;1.5,0;1,1;]" ..
+			"label[0,1;Left-over]" ..
+			"list[detached:invsaw_%s;micro;1.5,1;1,1;]" ..
+			"label[0,2;Recycle\noutput]" ..
+			"list[detached:invsaw_%s;recycle;1.5,2;1,1;]" ..
+			"field[0.3,3.5;1,1;max_offered;Max:;%s]" ..
+			"button[1,3.2;1,1;Set;Set]" ..
+			"list[detached:invsaw_%s;output;2.8,0;8,6;]" ..
+			"list[current_player;main;1.5,6.25;8,4;]"
+
+invsaw.nosawformspec =  "size[5,2]"..
+			"label[0,0;You don't have a circular saw in your inventory!\nYou need to have one in order to use this function.]"..
+			"button_exit[1.5,1;2,1;quit;OK]"
+
+function invsaw.reset(inv,name)
+	inv:set_list("input",  {})
+	inv:set_list("micro",  {})
+	inv:set_list("output", {})
+	invsaw.users[name].micros = 0
+end
+
+function invsaw.update_inventory(inv, name, amount)
+
+	amount = invsaw.users[name].micros + amount
+
+	-- The material is recycled automaticly.
+	inv:set_list("recycle",  {})
+
+	if amount < 1 then -- If the last block is taken out.
+		invsaw.reset(inv,name)
+		return
+	end
+ 
+	local stack = inv:get_stack("input",  1)
+	-- At least one "normal" block is necessary to see what kind of stairs are requested.
+	if stack:is_empty() then
+		-- Any microblocks not taken out yet are now lost.
+		-- (covers material loss in the machine)
+		invsaw.reset(inv,name)
+		return
+
+	end
+	local node_name = stack:get_name() or ""
+	local name_parts = circular_saw.known_nodes[node_name] or ""
+	local modname  = name_parts[1] or ""
+	local material = name_parts[2] or ""
+
+	inv:set_list("input", { -- Display as many full blocks as possible:
+		node_name.. " " .. math.floor(amount / 8)
+	})
+
+	-- The stairnodes made of default nodes use moreblocks namespace, other mods keep own:
+	if modname == "default" then
+		modname = "moreblocks"
+	end
+	-- print("circular_saw set to " .. modname .. " : "
+	--	.. material .. " with " .. (amount) .. " microblocks.")
+
+	-- 0-7 microblocks may remain left-over:
+	inv:set_list("micro", {
+		modname .. ":micro_" .. material .. "_bottom " .. (amount % 8)
+	})
+	-- Display:
+	inv:set_list("output",
+		circular_saw:get_output_inv(modname, material, amount,
+				invsaw.users[name].max_offered))
+	-- Store how many microblocks are available:
+	invsaw.users[name].micros = amount
+
+end
+
+invsaw.allow_put = function(inv, listname, index, stack, player)
+	-- The player is not allowed to put something in there:
+	if listname == "output" or listname == "micro" then
+		return 0
+	end
+
+	local stackname = stack:get_name()
+	local count = stack:get_count()
+
+	-- Only alow those items that are offered in the output inventory to be recycled:
+	if listname == "recycle" then
+		if not inv:contains_item("output", stackname) then
+			return 0
+		end
+		local stackmax = stack:get_stack_max()
+		local instack = inv:get_stack("input", 1)
+		local microstack = inv:get_stack("micro", 1)
+		local incount = instack:get_count()
+		local incost = (incount * 8) + microstack:get_count()
+		local maxcost = (stackmax * 8) + 7
+		local cost = circular_saw:get_cost(inv, stackname)
+		if (incost + cost) > maxcost then
+			return math.max((maxcost - incost) / cost, 0)
+		end
+		return count
+	end
+
+	-- Only accept certain blocks as input which are known to be craftable into stairs:
+	if listname == "input" then
+		if not inv:is_empty("input") then
+			if inv:get_stack("input", index):get_name() ~= stackname then
+				return 0
+			end
+		end
+		if not inv:is_empty("micro") then
+			local microstackname = inv:get_stack("micro", 1):get_name():gsub("^.+:micro_", "", 1)
+			local cutstackname = stackname:gsub("^.+:", "", 1)
+			if microstackname ~= cutstackname then
+				return 0
+			end
+		end
+		for name, t in pairs(circular_saw.known_nodes) do
+			if name == stackname and inv:room_for_item("input", stack) then
+				return count
+			end
+		end
+		return 0
+	end
+end
+
+invsaw.on_take = function(inv, listname, index, stack, player)
+	-- Prevent (inbuilt) swapping between inventories with different blocks
+	-- corrupting player inventory or Saw with 'unknown' items.
+	local input_stack = inv:get_stack(listname,  index)
+	if not input_stack:is_empty() and input_stack:get_name()~=stack:get_name() then
+		local player_inv = player:get_inventory()
+		if player_inv:room_for_item("main", input_stack) then
+			player_inv:add_item("main", input_stack)
+		end
+
+		circular_saw:reset(pos)
+		return
+	end
+
+	-- If it is one of the offered stairs: find out how many
+	-- microblocks have to be substracted:
+	if listname == "output" then
+		-- We do know how much each block at each position costs:
+		local cost = circular_saw.cost_in_microblocks[index]
+				* stack:get_count()
+
+		invsaw.update_inventory(inv, player:get_player_name(), -cost)
+	elseif listname == "micro" then
+		-- Each microblock costs 1 microblock:
+		invsaw.update_inventory(inv, player:get_player_name(), -stack:get_count())
+	elseif listname == "input" then
+		-- Each normal (= full) block taken costs 8 microblocks:
+		invsaw.update_inventory(inv, player:get_player_name(), 8 * -stack:get_count())
+	end
+	-- The recycle field plays no role here since it is processed immediately.
+end
+
+invsaw.on_put = function(inv, listname, index, stack, player)
+	-- We need to find out if the circular_saw is already set to a
+	-- specific material or not:
+	local stackname = stack:get_name()
+	local count = stack:get_count()
+
+	-- Putting something into the input slot is only possible if that had
+	-- been empty before or did contain something of the same material:
+	if listname == "input" then
+		-- Each new block is worth 8 microblocks:
+		invsaw.update_inventory(inv, player:get_player_name(), 8 * count)
+	elseif listname == "recycle" then
+		-- Lets look which shape this represents:
+		local cost = circular_saw:get_cost(inv, stackname)
+		local input_stack = inv:get_stack("input", 1)
+		-- check if this would not exceed input itemstack max_stacks
+		if input_stack:get_count() + ((cost * count) / 8) <= input_stack:get_stack_max() then
+			invsaw.update_inventory(inv, player:get_player_name(), cost * count)
+		end
+	end
+end
+
+minetest.register_on_joinplayer(function(player)
+	local name = player:get_player_name(player)
+	invsaw.users[name] = {}
+	invsaw.users[name].micros = 0
+	invsaw.users[name].max_offered = 99
+	local inv = minetest.create_detached_inventory("invsaw_"..name,{
+		allow_put = invsaw.allow_put,
+		on_put = invsaw.on_put,
+		on_take = invsaw.on_take,
+		allow_move = function() return 0 end
+	})
+	inv:set_size("input",1)
+	inv:set_size("micro",1)
+	inv:set_size("recycle",1)
+	inv:set_size("output",48) --6*8
+	invsaw.users[name].inv = inv
+end)
+
+minetest.register_on_player_receive_fields(function(player,formname,fields)
+	local name = player:get_player_name()
+	if fields.saw then
+		local creative = minetest.setting_getbool("creative_mode") or minetest.check_player_privs(name,{creative=true})
+		local havesaw = player:get_inventory():contains_item("main","moreblocks:circular_saw")
+		if havesaw or creative then
+			minetest.show_formspec(name,"invsaw:saw",string.format(invsaw.formspec,name,name,name,invsaw.users[name].max_offered,name))
+		else
+			minetest.show_formspec(name,"invsaw:nosaw",invsaw.nosawformspec)
+		end
+		return true
+	elseif formname == "invsaw:saw" and fields.Set then
+		invsaw.users[name].max_offered = tonumber(fields.max_offered) or 99
+		invsaw.update_inventory(invsaw.users[name].inv,name,0)
+		minetest.show_formspec(name,"invsaw:saw",string.format(invsaw.formspec,name,name,name,invsaw.users[name].max_offered,name))
+		return true
+	else
+		return false
+	end
+end)
+
+unified_inventory.register_button("saw", {
+		type = "image",
+		image = "invsaw_button.png",
+		tooltip = "Circular Saw"
+	})