Add screwdriver callbacks, and code them for doors and beds
Novatux
parent
852b337916
commit
2824562dc9
15
game_api.txt
15
game_api.txt
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@ -144,6 +144,21 @@ farming.register_plant(name, Plant definition)
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maxlight = default.LIGHT_MAX -- Maximum light to grow
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}
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Screwdriver API
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---------------
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The screwdriver API allows you to control a node's behaviour when a screwdriver is used on it.
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To use it, add the on_screwdriver function to the node definition.
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on_rotate(pos, node, user, mode, new_param2)
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^ pos: position of the node that the screwdriver is being used on
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^ node: that node
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^ user: the player who used the screwdriver
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^ mode: screwdriver.ROTATE_FACE or screwdriver.ROTATE_AXIS
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^ new_param2: the new value of param2 that would have been set if on_rotate wasn't there
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^ return value: false to disallow rotation, nil to keep default behaviour, true to allow
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it but to indicate that changed have already been made (so the screwdriver will wear out)
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^ use on_rotate = screwdriver.disallow to always disallow rotation
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^ use on_rotate = screwdriver.rotate_simple to allow only face rotation
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Stairs API
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----------
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The stairs API lets you register stairs and slabs and ensures that they are registered the same way as those
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@ -26,10 +26,10 @@ function beds.register_bed(name, def)
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return true
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end
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local dir = minetest.facedir_to_dir(n.param2)
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local p = {x=pos.x+dir.x,y=pos.y,z=pos.z+dir.z}
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local p = vector.add(pos, dir)
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local n2 = minetest.get_node_or_nil(p)
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local def = minetest.registered_items[n2.name] or nil
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if not n2 or not def or not def.buildable_to then
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local def = n2 and minetest.registered_items[n2.name]
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if not def or not def.buildable_to then
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minetest.remove_node(pos)
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return true
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end
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@ -40,7 +40,7 @@ function beds.register_bed(name, def)
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local n = minetest.get_node_or_nil(pos)
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if not n then return end
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local dir = minetest.facedir_to_dir(n.param2)
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local p = {x=pos.x+dir.x,y=pos.y,z=pos.z+dir.z}
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local p = vector.add(pos, dir)
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local n2 = minetest.get_node(p)
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if minetest.get_item_group(n2.name, "bed") == 2 and n.param2 == n2.param2 then
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minetest.remove_node(p)
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@ -49,6 +49,37 @@ function beds.register_bed(name, def)
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on_rightclick = function(pos, node, clicker)
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beds.on_rightclick(pos, clicker)
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end,
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on_rotate = function(pos, node, user, mode, new_param2)
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local dir = minetest.facedir_to_dir(node.param2)
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local p = vector.add(pos, dir)
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local node2 = minetest.get_node_or_nil(p)
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if not node2 or not minetest.get_item_group(node2.name, "bed") == 2 or
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not node.param2 == node2.param2 then
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return false
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end
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if minetest.is_protected(p, user:get_player_name()) then
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minetest.record_protection_violation(p, user:get_player_name())
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return false
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end
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if mode ~= screwdriver.ROTATE_FACE then
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return false
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end
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local newp = vector.add(pos, minetest.facedir_to_dir(new_param2))
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local node3 = minetest.get_node_or_nil(newp)
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local def = node3 and minetest.registered_nodes[node3.name]
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if not def or not def.buildable_to then
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return false
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end
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if minetest.is_protected(newp, user:get_player_name()) then
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minetest.record_protection_violation(newp, user:get_player_name())
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return false
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end
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node.param2 = new_param2
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minetest.swap_node(pos, node)
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minetest.remove_node(p)
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minetest.set_node(newp, {name = node.name:gsub("%_bottom", "_top"), param2 = new_param2})
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return true
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end,
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})
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minetest.register_node(name .. "_top", {
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@ -163,6 +163,33 @@ function doors.register_door(name, def)
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return meta:get_string("doors_owner") == pn
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end
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local function on_rotate(pos, node, dir, user, check_name, mode, new_param2)
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if not check_player_priv(pos, user) then
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return false
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end
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if mode ~= screwdriver.ROTATE_FACE then
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return false
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end
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pos.y = pos.y + dir
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if not minetest.get_node(pos).name == check_name then
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return false
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end
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if minetest.is_protected(pos, user:get_player_name()) then
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minetest.record_protection_violation(pos, user:get_player_name())
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return false
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end
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local node2 = minetest.get_node(pos)
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node2.param2 = (node2.param2 + 1) % 4
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minetest.swap_node(pos, node2)
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pos.y = pos.y - dir
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node.param2 = (node.param2 + 1) % 4
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minetest.swap_node(pos, node)
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return true
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end
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minetest.register_node(name.."_b_1", {
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tiles = {tb[2], tb[2], tb[2], tb[2], tb[1], tb[1].."^[transformfx"},
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paramtype = "light",
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@ -190,6 +217,10 @@ function doors.register_door(name, def)
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end
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end,
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on_rotate = function(pos, node, user, mode, new_param2)
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return on_rotate(pos, node, 1, user, name.."_t_1", mode)
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end,
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can_dig = check_player_priv,
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sounds = def.sounds,
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sunlight_propagates = def.sunlight,
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@ -223,6 +254,10 @@ function doors.register_door(name, def)
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end
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end,
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on_rotate = function(pos, node, user, mode, new_param2)
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return on_rotate(pos, node, -1, user, name.."_b_1", mode)
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end,
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can_dig = check_player_priv,
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sounds = def.sounds,
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sunlight_propagates = def.sunlight,
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@ -256,6 +291,10 @@ function doors.register_door(name, def)
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end
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end,
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on_rotate = function(pos, node, user, mode, new_param2)
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return on_rotate(pos, node, 1, user, name.."_t_2", mode)
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end,
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can_dig = check_player_priv,
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sounds = def.sounds,
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sunlight_propagates = def.sunlight,
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@ -289,6 +328,10 @@ function doors.register_door(name, def)
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end
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end,
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on_rotate = function(pos, node, user, mode, new_param2)
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return on_rotate(pos, node, -1, user, name.."_b_2", mode)
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end,
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can_dig = check_player_priv,
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sounds = def.sounds,
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sunlight_propagates = def.sunlight,
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@ -392,6 +435,8 @@ function doors.register_trapdoor(name, def)
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minetest.set_node(pos, {name = newname, param1 = node.param1, param2 = node.param2})
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end
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def.on_rotate = screwdriver.rotate_simple
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-- Common trapdoor configuration
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def.drawtype = "nodebox"
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def.paramtype = "light"
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@ -1,3 +1,5 @@
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screwdriver = {}
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local function nextrange(x, max)
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x = x + 1
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if x > max then
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@ -6,8 +8,16 @@ local function nextrange(x, max)
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return x
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end
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local ROTATE_FACE = 1
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local ROTATE_AXIS = 2
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screwdriver.ROTATE_FACE = 1
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screwdriver.ROTATE_AXIS = 2
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screwdriver.disallow = function(pos, node, user, mode, new_param2)
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return false
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end
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screwdriver.rotate_simple = function(pos, node, user, mode, new_param2)
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if mode ~= screwdriver.ROTATE_FACE then
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return false
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end
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end
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local USES = 200
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-- Handles rotation
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@ -25,31 +35,47 @@ local function screwdriver_handler(itemstack, user, pointed_thing, mode)
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local node = minetest.get_node(pos)
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local ndef = minetest.registered_nodes[node.name]
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if not ndef or not ndef.paramtype2 == "facedir" or
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(ndef.drawtype == "nodebox" and
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not ndef.node_box.type == "fixed") or
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node.param2 == nil then
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return
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end
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if ndef.can_dig and not ndef.can_dig(pos, user) then
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return
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end
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-- Set param2
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-- Compute param2
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local rotationPart = node.param2 % 32 -- get first 4 bits
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local preservePart = node.param2 - rotationPart
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local axisdir = math.floor(rotationPart / 4)
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local rotation = rotationPart - axisdir * 4
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if mode == ROTATE_FACE then
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if mode == screwdriver.ROTATE_FACE then
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rotationPart = axisdir * 4 + nextrange(rotation, 3)
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elseif mode == ROTATE_AXIS then
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elseif mode == screwdriver.ROTATE_AXIS then
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rotationPart = nextrange(axisdir, 5) * 4
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end
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node.param2 = preservePart + rotationPart
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minetest.swap_node(pos, node)
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local new_param2 = preservePart + rotationPart
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local should_rotate = true
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if ndef and ndef.on_rotate then -- Node provides a handler, so let the handler decide instead if the node can be rotated
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-- Copy pos and node because callback can modify it
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local result = ndef.on_rotate(vector.new(pos),
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{name = node.name, param1 = node.param1, param2 = node.param2},
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user, mode)
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if result == false then -- Disallow rotation
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return
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elseif result == true then
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should_rotate = false
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end
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else
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if not ndef or not ndef.paramtype2 == "facedir" or
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(ndef.drawtype == "nodebox" and
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not ndef.node_box.type == "fixed") or
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node.param2 == nil then
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return
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end
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if ndef.can_dig and not ndef.can_dig(pos, user) then
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return
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end
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end
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if should_rotate then
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node.param2 = new_param2
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minetest.swap_node(pos, node)
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end
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if not minetest.setting_getbool("creative_mode") then
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itemstack:add_wear(65535 / (USES - 1))
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@ -63,11 +89,11 @@ minetest.register_tool("screwdriver:screwdriver", {
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description = "Screwdriver (left-click rotates face, right-click rotates axis)",
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inventory_image = "screwdriver.png",
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on_use = function(itemstack, user, pointed_thing)
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screwdriver_handler(itemstack, user, pointed_thing, ROTATE_FACE)
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screwdriver_handler(itemstack, user, pointed_thing, screwdriver.ROTATE_FACE)
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return itemstack
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end,
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on_place = function(itemstack, user, pointed_thing)
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screwdriver_handler(itemstack, user, pointed_thing, ROTATE_AXIS)
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screwdriver_handler(itemstack, user, pointed_thing, screwdriver.ROTATE_AXIS)
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return itemstack
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end,
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})
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