235 lines
6.3 KiB
Lua
235 lines
6.3 KiB
Lua
-- Minetest: builtin/item.lua
|
|
|
|
--
|
|
-- Falling stuff
|
|
--
|
|
|
|
function node_drop(np, remove_fast)
|
|
local n2 = multicraft.get_node(np)
|
|
-- If it's not air or liquid, remove node and replace it with
|
|
-- it's drops
|
|
if n2.name ~= "air" and (not multicraft.registered_nodes[n2.name] or
|
|
multicraft.registered_nodes[n2.name].liquidtype == "none") then
|
|
multicraft.remove_node(np, remove_fast)
|
|
if multicraft.registered_nodes[n2.name].buildable_to == false then
|
|
-- Add dropped items
|
|
local drops = multicraft.get_node_drops(n2.name, "")
|
|
local _, dropped_item
|
|
for _, dropped_item in ipairs(drops) do
|
|
multicraft.add_item(np, dropped_item)
|
|
end
|
|
end
|
|
-- Run script hook
|
|
local _, callback
|
|
for _, callback in ipairs(multicraft.registered_on_dignodes) do
|
|
callback(np, n2, nil)
|
|
end
|
|
end
|
|
end
|
|
|
|
local remove_fast = 0
|
|
|
|
multicraft.register_entity(":__builtin:falling_node", {
|
|
initial_properties = {
|
|
physical = true,
|
|
collide_with_objects = false,
|
|
collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
|
|
visual = "wielditem",
|
|
textures = {},
|
|
visual_size = {x=0.667, y=0.667},
|
|
},
|
|
|
|
node = {},
|
|
|
|
set_node = function(self, node)
|
|
self.node = node
|
|
local stack = ItemStack(node.name)
|
|
local itemtable = stack:to_table()
|
|
local itemname = nil
|
|
if itemtable then
|
|
itemname = stack:to_table().name
|
|
end
|
|
local item_texture = nil
|
|
local item_type = ""
|
|
if multicraft.registered_items[itemname] then
|
|
item_texture = multicraft.registered_items[itemname].inventory_image
|
|
item_type = multicraft.registered_items[itemname].type
|
|
end
|
|
local prop = {
|
|
is_visible = true,
|
|
textures = {node.name},
|
|
}
|
|
self.object:set_properties(prop)
|
|
end,
|
|
|
|
get_staticdata = function(self)
|
|
return self.node.name
|
|
end,
|
|
|
|
on_activate = function(self, staticdata)
|
|
self.object:set_armor_groups({immortal=1})
|
|
self:set_node({name=staticdata})
|
|
end,
|
|
|
|
on_step = function(self, dtime)
|
|
if dtime > 0.2 then remove_fast = 2 else remove_fast = 0 end
|
|
-- Set gravity
|
|
self.object:setacceleration({x=0, y=-10, z=0})
|
|
-- 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 = multicraft.get_node(bcp)
|
|
local bcd = multicraft.registered_nodes[bcn.name]
|
|
-- Note: walkable is in the node definition, not in item groups
|
|
if not bcd or
|
|
(bcd.walkable or
|
|
(multicraft.get_item_group(self.node.name, "float") ~= 0 and
|
|
bcd.liquidtype ~= "none")) then
|
|
if bcd and bcd.leveled and bcd.leveled > 0 and
|
|
bcn.name == self.node.name then
|
|
local addlevel = self.node.level
|
|
if addlevel == nil or addlevel <= 0 then
|
|
addlevel = bcd.leveled
|
|
end
|
|
if multicraft.add_node_level(bcp, addlevel) == 0 then
|
|
self.object:remove()
|
|
return
|
|
end
|
|
elseif bcd and bcd.buildable_to and
|
|
(multicraft.get_item_group(self.node.name, "float") == 0 or
|
|
bcd.liquidtype == "none") then
|
|
multicraft.remove_node(bcp, remove_fast)
|
|
return
|
|
end
|
|
local np = {x=bcp.x, y=bcp.y+1, z=bcp.z}
|
|
-- Check what's here
|
|
local n2 = multicraft.get_node(np)
|
|
-- remove node and replace it with it's drops
|
|
node_drop(np, remove_fast)
|
|
-- Create node and remove entity
|
|
multicraft.add_node(np, self.node)
|
|
self.object:remove()
|
|
nodeupdate(np)
|
|
return
|
|
end
|
|
local vel = self.object:getvelocity()
|
|
if vector.equals(vel, {x=0,y=0,z=0}) then
|
|
local npos = self.object:getpos()
|
|
self.object:setpos(vector.round(npos))
|
|
end
|
|
end
|
|
})
|
|
|
|
function spawn_falling_node(p, node)
|
|
local obj = multicraft.add_entity(p, "__builtin:falling_node")
|
|
if not obj then return end
|
|
obj:get_luaentity():set_node(node)
|
|
end
|
|
|
|
function drop_attached_node(p)
|
|
local nn = multicraft.get_node(p).name
|
|
multicraft.remove_node(p, remove_fast)
|
|
for _,item in ipairs(multicraft.get_node_drops(nn, "")) do
|
|
local pos = {
|
|
x = p.x + math.random()/2 - 0.25,
|
|
y = p.y + math.random()/2 - 0.25,
|
|
z = p.z + math.random()/2 - 0.25,
|
|
}
|
|
multicraft.add_item(pos, item)
|
|
end
|
|
end
|
|
|
|
function check_attached_node(p, n)
|
|
local def = multicraft.registered_nodes[n.name]
|
|
local d = {x=0, y=0, z=0}
|
|
if def.paramtype2 == "wallmounted" then
|
|
if n.param2 == 0 then
|
|
d.y = 1
|
|
elseif n.param2 == 1 then
|
|
d.y = -1
|
|
elseif n.param2 == 2 then
|
|
d.x = 1
|
|
elseif n.param2 == 3 then
|
|
d.x = -1
|
|
elseif n.param2 == 4 then
|
|
d.z = 1
|
|
elseif n.param2 == 5 then
|
|
d.z = -1
|
|
end
|
|
else
|
|
d.y = -1
|
|
end
|
|
local p2 = {x=p.x+d.x, y=p.y+d.y, z=p.z+d.z}
|
|
local nn = multicraft.get_node(p2).name
|
|
local def2 = multicraft.registered_nodes[nn]
|
|
if def2 and not def2.walkable then
|
|
return false
|
|
end
|
|
return true
|
|
end
|
|
|
|
--
|
|
-- Some common functions
|
|
--
|
|
|
|
function nodeupdate_single(p, delay)
|
|
local n = multicraft.get_node(p)
|
|
if multicraft.get_item_group(n.name, "falling_node") ~= 0 then
|
|
local p_bottom = {x=p.x, y=p.y-1, z=p.z}
|
|
local n_bottom = multicraft.get_node(p_bottom)
|
|
-- Note: walkable is in the node definition, not in item groups
|
|
if multicraft.registered_nodes[n_bottom.name] and
|
|
(multicraft.get_item_group(n.name, "float") == 0 or
|
|
multicraft.registered_nodes[n_bottom.name].liquidtype == "none") and
|
|
(n.name ~= n_bottom.name or (multicraft.registered_nodes[n_bottom.name].leveled and
|
|
multicraft.get_node_level(p_bottom) < multicraft.get_node_max_level(p_bottom))) and
|
|
(not multicraft.registered_nodes[n_bottom.name].walkable or
|
|
multicraft.registered_nodes[n_bottom.name].buildable_to) then
|
|
if delay then
|
|
multicraft.after(0.1, nodeupdate_single, {x=p.x, y=p.y, z=p.z}, false)
|
|
else
|
|
n.level = multicraft.get_node_level(p)
|
|
multicraft.remove_node(p, remove_fast)
|
|
spawn_falling_node(p, n)
|
|
nodeupdate(p)
|
|
end
|
|
end
|
|
end
|
|
|
|
if multicraft.get_item_group(n.name, "attached_node") ~= 0 then
|
|
if not check_attached_node(p, n) then
|
|
drop_attached_node(p)
|
|
nodeupdate(p)
|
|
end
|
|
end
|
|
end
|
|
|
|
function nodeupdate(p, delay)
|
|
-- Round p to prevent falling entities to get stuck
|
|
p.x = math.floor(p.x+0.5)
|
|
p.y = math.floor(p.y+0.5)
|
|
p.z = math.floor(p.z+0.5)
|
|
|
|
for x = -1,1 do
|
|
for y = -1,1 do
|
|
for z = -1,1 do
|
|
nodeupdate_single({x=p.x+x, y=p.y+y, z=p.z+z}, delay or not (x==0 and y==0 and z==0))
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
--
|
|
-- Global callbacks
|
|
--
|
|
|
|
function on_placenode(p, node)
|
|
nodeupdate(p)
|
|
end
|
|
multicraft.register_on_placenode(on_placenode)
|
|
|
|
function on_dignode(p, node)
|
|
nodeupdate(p)
|
|
end
|
|
multicraft.register_on_dignode(on_dignode)
|