567 lines
14 KiB
Lua
567 lines
14 KiB
Lua
-- Minetest: builtin/item.lua (override falling entity with new features)
|
|
|
|
local function add_fall_damage(node, damage)
|
|
|
|
if core.registered_nodes[node] then
|
|
|
|
local group = core.registered_nodes[node].groups
|
|
|
|
group.falling_node_damage = damage
|
|
|
|
core.override_item(node, {groups = group})
|
|
else
|
|
print (node .. " not found to add falling_node_damage to")
|
|
end
|
|
end
|
|
|
|
-- override falling nodes to add damage
|
|
add_fall_damage("default:sand", 2)
|
|
add_fall_damage("default:desert_sand", 2)
|
|
add_fall_damage("default:silver_sand", 2)
|
|
add_fall_damage("default:gravel", 3)
|
|
add_fall_damage("caverealms:coal_dust", 3)
|
|
add_fall_damage("tnt:tnt_burning", 4)
|
|
|
|
--
|
|
-- Falling stuff
|
|
--
|
|
|
|
local node_fall_hurt = core.settings:get_bool("node_fall_hurt") ~= false
|
|
local delay = 0.1 -- used to simulate lag
|
|
local gravity = core.settings:get("movement_gravity") or 9.81
|
|
local builtin_shared = ...
|
|
local SCALE = 0.667
|
|
local facedir_to_euler = {
|
|
{y = 0, x = 0, z = 0},
|
|
{y = -math.pi/2, x = 0, z = 0},
|
|
{y = math.pi, x = 0, z = 0},
|
|
{y = math.pi/2, x = 0, z = 0},
|
|
{y = math.pi/2, x = -math.pi/2, z = math.pi/2},
|
|
{y = math.pi/2, x = math.pi, z = math.pi/2},
|
|
{y = math.pi/2, x = math.pi/2, z = math.pi/2},
|
|
{y = math.pi/2, x = 0, z = math.pi/2},
|
|
{y = -math.pi/2, x = math.pi/2, z = math.pi/2},
|
|
{y = -math.pi/2, x = 0, z = math.pi/2},
|
|
{y = -math.pi/2, x = -math.pi/2, z = math.pi/2},
|
|
{y = -math.pi/2, x = math.pi, z = math.pi/2},
|
|
{y = 0, x = 0, z = math.pi/2},
|
|
{y = 0, x = -math.pi/2, z = math.pi/2},
|
|
{y = 0, x = math.pi, z = math.pi/2},
|
|
{y = 0, x = math.pi/2, z = math.pi/2},
|
|
{y = math.pi, x = math.pi, z = math.pi/2},
|
|
{y = math.pi, x = math.pi/2, z = math.pi/2},
|
|
{y = math.pi, x = 0, z = math.pi/2},
|
|
{y = math.pi, x = -math.pi/2, z = math.pi/2},
|
|
{y = math.pi, x = math.pi, z = 0},
|
|
{y = -math.pi/2, x = math.pi, z = 0},
|
|
{y = 0, x = math.pi, z = 0},
|
|
{y = math.pi/2, x = math.pi, z = 0}
|
|
}
|
|
|
|
local function fall_hurt_check(self, pos)
|
|
|
|
if self.hurt_toggle then
|
|
|
|
-- Get damage level from falling_node_damage group
|
|
local damage = core.registered_nodes[self.node.name] and
|
|
core.registered_nodes[self.node.name].groups.falling_node_damage
|
|
|
|
if damage then
|
|
|
|
local all_objects = minetest.get_objects_inside_radius(pos, 0.8)
|
|
|
|
for _,obj in ipairs(all_objects) do
|
|
|
|
local name = obj:get_luaentity() and obj:get_luaentity().name
|
|
|
|
if (name ~= "__builtin:item" and name ~= "__builtin:falling_node")
|
|
or obj:is_player() then
|
|
|
|
obj:punch(self.object, 4.0, {damage_groups = {fleshy = damage}}, nil)
|
|
|
|
self.hurt_toggle = false
|
|
end
|
|
end
|
|
end
|
|
else
|
|
self.hurt_toggle = true
|
|
end
|
|
end
|
|
|
|
|
|
-- override falling node entity with new version
|
|
core.register_entity(":__builtin:falling_node", {
|
|
|
|
initial_properties = {
|
|
visual = "wielditem",
|
|
visual_size = {x = SCALE, y = SCALE, z = SCALE},
|
|
textures = {},
|
|
physical = true,
|
|
is_visible = false,
|
|
collide_with_objects = false,
|
|
collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5}
|
|
},
|
|
|
|
set_node = function(self, node, meta)
|
|
|
|
self.node = node
|
|
meta = meta or {}
|
|
self.hurt_toggle = true
|
|
|
|
if type(meta.to_table) == "function" then
|
|
meta = meta:to_table()
|
|
end
|
|
|
|
for _, list in pairs(meta.inventory or {}) do
|
|
|
|
for i, stack in pairs(list) do
|
|
|
|
if type(stack) == "userdata" then
|
|
list[i] = stack:to_string()
|
|
end
|
|
end
|
|
end
|
|
|
|
local def = core.registered_nodes[node.name]
|
|
|
|
if not def then
|
|
|
|
-- Don't allow unknown nodes to fall
|
|
core.log("warning", "Unknown falling node removed at "
|
|
.. core.pos_to_string(self.object:get_pos()))
|
|
|
|
self.object:remove()
|
|
|
|
return
|
|
end
|
|
|
|
self.meta = meta
|
|
|
|
-- make sure param2 isnt nil
|
|
local np2 = node.param2 or 0
|
|
|
|
-- Cache whether we're supposed to float on water
|
|
self.floats = core.get_item_group(node.name, "float") ~= 0
|
|
|
|
-- Set entity visuals
|
|
if def.drawtype == "torchlike" or def.drawtype == "signlike" then
|
|
|
|
local textures
|
|
|
|
if def.tiles and def.tiles[1] then
|
|
|
|
local tile = def.tiles[1]
|
|
|
|
if type(tile) == "table" then
|
|
tile = tile.name
|
|
end
|
|
|
|
if def.drawtype == "torchlike" then
|
|
textures = {"(" .. tile .. ")^[transformFX", tile}
|
|
else
|
|
textures = {tile, "(" .. tile .. ")^[transformFX"}
|
|
end
|
|
end
|
|
|
|
local vsize
|
|
|
|
if def.visual_scale then
|
|
|
|
local s = def.visual_scale
|
|
|
|
vsize = {x = s, y = s, z = s}
|
|
end
|
|
|
|
self.object:set_properties({
|
|
is_visible = true,
|
|
visual = "upright_sprite",
|
|
visual_size = vsize,
|
|
textures = textures,
|
|
glow = def.light_source
|
|
})
|
|
|
|
elseif def.drawtype ~= "airlike" then
|
|
|
|
local itemstring = node.name
|
|
|
|
if core.is_colored_paramtype(def.paramtype2) then
|
|
itemstring = core.itemstring_with_palette(itemstring, np2)
|
|
end
|
|
|
|
-- FIXME: solution needed for paramtype2 == "leveled"
|
|
local vsize
|
|
|
|
local s = {}
|
|
s.x = (def.visual_scale or 1) * SCALE
|
|
s.y = s.x
|
|
s.z = s.x
|
|
|
|
-- Compensate for wield_scale
|
|
if def.wield_scale then
|
|
s.x = s.x / def.wield_scale.x
|
|
s.y = s.y / def.wield_scale.y
|
|
s.z = s.z / def.wield_scale.z
|
|
end
|
|
|
|
self.object:set_properties({
|
|
is_visible = true,
|
|
wield_item = itemstring,
|
|
visual_size = s,
|
|
glow = def.light_source
|
|
})
|
|
end
|
|
|
|
-- Set collision box (certain nodeboxes only for now)
|
|
local nb_types = {fixed = true, leveled = true, connected = true}
|
|
|
|
if def.drawtype == "nodebox" and def.node_box
|
|
and nb_types[def.node_box.type] and def.node_box.fixed then
|
|
|
|
local box = table.copy(def.node_box.fixed)
|
|
|
|
if type(box[1]) == "table" then
|
|
box = #box == 1 and box[1] or nil -- We can only use a single box
|
|
end
|
|
|
|
if box then
|
|
|
|
if def.paramtype2 == "leveled" and (self.node.level or 0) > 0 then
|
|
box[5] = -0.5 + self.node.level / 64
|
|
end
|
|
|
|
self.object:set_properties({
|
|
collisionbox = box
|
|
})
|
|
end
|
|
end
|
|
|
|
-- Rotate entity
|
|
if def.drawtype == "torchlike" then
|
|
|
|
self.object:set_yaw(math.pi * 0.25)
|
|
|
|
elseif ((np2 ~= 0 or def.drawtype == "nodebox" or def.drawtype == "mesh")
|
|
and (def.wield_image == "" or def.wield_image == nil))
|
|
or def.drawtype == "signlike"
|
|
or def.drawtype == "mesh"
|
|
or def.drawtype == "normal"
|
|
or def.drawtype == "nodebox" then
|
|
|
|
if def.paramtype2 == "facedir" or def.paramtype2 == "colorfacedir" then
|
|
|
|
local fdir = np2 % 32 % 24
|
|
|
|
-- Get rotation from a precalculated lookup table
|
|
local euler = facedir_to_euler[fdir + 1]
|
|
|
|
if euler then
|
|
self.object:set_rotation(euler)
|
|
end
|
|
|
|
elseif def.paramtype2 == "4dir"
|
|
or def.paramtype2 == "color4dir" then
|
|
|
|
local fdir = node.param2 % 4
|
|
|
|
-- Get rotation from a precalculated lookup table
|
|
local euler = facedir_to_euler[fdir + 1]
|
|
|
|
if euler then
|
|
self.object:set_rotation(euler)
|
|
end
|
|
|
|
elseif def.drawtype ~= "plantlike"
|
|
and def.drawtype ~= "plantlike_rooted"
|
|
and (def.paramtype2 == "wallmounted"
|
|
or def.paramtype2 == "colorwallmounted"
|
|
or def.drawtype == "signlike") then
|
|
|
|
local rot = node.param2 % 8
|
|
|
|
if def.drawtype == "signlike"
|
|
and def.paramtype2 ~= "wallmounted"
|
|
and def.paramtype2 ~= "colorwallmounted" then
|
|
-- Change rotation to "floor" by default for non-wallmounted paramtype2
|
|
rot = 1
|
|
end
|
|
|
|
local pitch, yaw, roll = 0, 0, 0
|
|
|
|
if def.drawtype == "nodebox" or def.drawtype == "mesh" then
|
|
|
|
if rot == 0 then
|
|
pitch, yaw = math.pi/2, 0
|
|
elseif rot == 1 then
|
|
pitch, yaw = -math.pi/2, math.pi
|
|
elseif rot == 2 then
|
|
pitch, yaw = 0, math.pi/2
|
|
elseif rot == 3 then
|
|
pitch, yaw = 0, -math.pi/2
|
|
elseif rot == 4 then
|
|
pitch, yaw = 0, math.pi
|
|
end
|
|
else
|
|
if rot == 1 then
|
|
pitch, yaw = math.pi, math.pi
|
|
elseif rot == 2 then
|
|
pitch, yaw = math.pi/2, math.pi/2
|
|
elseif rot == 3 then
|
|
pitch, yaw = math.pi/2, -math.pi/2
|
|
elseif rot == 4 then
|
|
pitch, yaw = math.pi/2, math.pi
|
|
elseif rot == 5 then
|
|
pitch, yaw = math.pi/2, 0
|
|
end
|
|
end
|
|
|
|
if def.drawtype == "signlike" then
|
|
|
|
pitch = pitch - math.pi/2
|
|
|
|
if rot == 0 then
|
|
yaw = yaw + math.pi/2
|
|
elseif rot == 1 then
|
|
yaw = yaw - math.pi/2
|
|
end
|
|
|
|
elseif def.drawtype == "mesh"
|
|
or def.drawtype == "normal" or def.drawtype == "nodebox" then
|
|
|
|
if rot >= 0 and rot <= 1 then
|
|
roll = roll + math.pi
|
|
else
|
|
yaw = yaw + math.pi
|
|
end
|
|
end
|
|
|
|
self.object:set_rotation({x = pitch, y = yaw, z = roll})
|
|
|
|
elseif (def.drawtype == "mesh" and def.paramtype2 == "degrotate") then
|
|
|
|
local p2 = (np2 - (def.place_param2 or 0)) % 240
|
|
local yaw = (p2 / 240) * (math.pi * 2)
|
|
|
|
self.object:set_yaw(yaw)
|
|
|
|
elseif (def.drawtype == "mesh" and def.paramtype2 == "colordegrotate") then
|
|
|
|
local p2 = (np2 % 32 - (def.place_param2 or 0) % 32) % 24
|
|
local yaw = (p2 / 24) * (math.pi * 2)
|
|
|
|
self.object:set_yaw(yaw)
|
|
end
|
|
end
|
|
end,
|
|
|
|
get_staticdata = function(self)
|
|
|
|
return core.serialize({
|
|
node = self.node,
|
|
meta = self.meta
|
|
})
|
|
end,
|
|
|
|
on_activate = function(self, staticdata)
|
|
|
|
self.object:set_armor_groups({immortal = 1})
|
|
self.object:set_acceleration({x = 0, y = -gravity, z = 0})
|
|
|
|
local ds = core.deserialize(staticdata)
|
|
|
|
if ds and ds.node then
|
|
self:set_node(ds.node, ds.meta)
|
|
|
|
elseif ds then
|
|
self:set_node(ds)
|
|
|
|
elseif staticdata ~= "" then
|
|
self:set_node({name = staticdata})
|
|
end
|
|
end,
|
|
|
|
-- incase falling entity is stuck, punching drops as item to recover
|
|
on_punch = function(self, puncher, tflp, tool_caps, dir, damage)
|
|
|
|
if puncher and puncher:is_player() then
|
|
|
|
local drops = core.get_node_drops(self.node, "")
|
|
|
|
for _, dropped_item in pairs(drops) do
|
|
core.add_item(self.object:get_pos(), dropped_item)
|
|
end
|
|
|
|
self.object:remove()
|
|
end
|
|
end,
|
|
|
|
on_step = function(self, dtime)
|
|
|
|
-- used to simulate a little lag
|
|
self.timer = (self.timer or 0) + dtime
|
|
|
|
if self.timer < delay then
|
|
return
|
|
end
|
|
|
|
self.timer = 0
|
|
|
|
-- Set gravity and horizontal slowing
|
|
self.object:set_acceleration({x = 0, y = -gravity, z = 0})
|
|
|
|
local vel = self.object:get_velocity()
|
|
|
|
vel.x = vel.x * 0.95
|
|
vel.z = vel.z * 0.95
|
|
|
|
if vel.x < 0.1 and vel.z < 0.1 then
|
|
vel.x = 0
|
|
vel.z = 0
|
|
end
|
|
|
|
self.object:set_velocity(vel)
|
|
|
|
local pos = self.object:get_pos()
|
|
|
|
-- Position of bottom center point
|
|
local below_pos = {x = pos.x, y = pos.y - 0.7, z = pos.z}
|
|
|
|
-- Check for player/mobs below falling node and hurt them >:D
|
|
if node_fall_hurt then
|
|
fall_hurt_check(self, below_pos)
|
|
end
|
|
|
|
-- check if falling node has custom function set
|
|
local custom = core.registered_items[self.node.name]
|
|
and core.registered_items[self.node.name].falling_step
|
|
|
|
if custom and custom(self, pos, dtime + delay) == false then
|
|
return -- skip further checks if false
|
|
end
|
|
|
|
-- Avoid bugs caused by an unloaded node below
|
|
local below_node = core.get_node_or_nil(below_pos)
|
|
|
|
-- Delete on contact with ignore at world edges or return if unloaded
|
|
if not below_node then
|
|
return
|
|
|
|
elseif below_node.name == "ignore" then
|
|
|
|
self.object:remove()
|
|
|
|
return
|
|
end
|
|
|
|
local below_nodef = core.registered_nodes[below_node.name]
|
|
|
|
-- Is it a level node we can add to?
|
|
if below_nodef and below_nodef.leveled and below_node.name == self.node.name then
|
|
|
|
local addlevel = self.node.level
|
|
|
|
if not addlevel or addlevel <= 0 then
|
|
addlevel = below_nodef.leveled
|
|
end
|
|
|
|
if core.add_node_level(below_pos, addlevel) == 0 then
|
|
|
|
self.object:remove()
|
|
|
|
return
|
|
end
|
|
end
|
|
|
|
-- Stop node if it falls on walkable surface, or floats on water
|
|
if (below_nodef and below_nodef.walkable == true)
|
|
or (below_nodef
|
|
and core.get_item_group(self.node.name, "float") ~= 0
|
|
and below_nodef.liquidtype ~= "none") then
|
|
|
|
self.object:set_velocity({x = 0, y = 0, z = 0})
|
|
end
|
|
|
|
-- Has the fallen node stopped moving ?
|
|
if vector.equals(vel, {x = 0, y = 0, z = 0}) then
|
|
|
|
local npos = self.object:get_pos()
|
|
|
|
if not npos then return end
|
|
|
|
-- Get node we've landed inside
|
|
local cnode = minetest.get_node(npos)
|
|
local cdef = core.registered_nodes[cnode.name]
|
|
|
|
-- If air_equivalent or buildable_to or an attached_node then place
|
|
-- node, otherwise drop falling node as an item instead.
|
|
if (cdef and cdef.air_equivalent == true)
|
|
or (cdef and cdef.buildable_to == true)
|
|
or (cdef and cdef.liquidtype ~= "none")
|
|
-- only drop attached nodes if area not protected (torch, rails etc.)
|
|
or (core.get_item_group(cnode.name, "attached_node") ~= 0
|
|
and not minetest.is_protected(npos, "")) then
|
|
|
|
-- Are we an attached node ? (grass, flowers, torch)
|
|
if core.get_item_group(cnode.name, "attached_node") ~= 0 then
|
|
|
|
-- Add drops from attached node
|
|
local drops = core.get_node_drops(cnode.name, "")
|
|
|
|
for _, dropped_item in pairs(drops) do
|
|
core.add_item(npos, dropped_item)
|
|
end
|
|
|
|
-- Run script hook
|
|
for _, callback in pairs(core.registered_on_dignodes) do
|
|
callback(npos, cnode)
|
|
end
|
|
end
|
|
|
|
-- Round position
|
|
npos = vector.round(npos)
|
|
|
|
-- Place falling entity as node and write any metadata
|
|
core.add_node(npos, self.node)
|
|
|
|
if self.meta then
|
|
|
|
local meta = core.get_meta(npos)
|
|
|
|
meta:from_table(self.meta)
|
|
end
|
|
|
|
-- Play placed sound
|
|
local def = core.registered_nodes[self.node.name]
|
|
|
|
if def.sounds and def.sounds.place and def.sounds.place.name then
|
|
core.sound_play(def.sounds.place, {pos = npos}, true)
|
|
end
|
|
|
|
-- Just incase we landed on other falling nodes
|
|
core.check_for_falling(npos)
|
|
else
|
|
-- Add drops from falling node
|
|
local drops = core.get_node_drops(self.node, "")
|
|
|
|
for _, dropped_item in pairs(drops) do
|
|
core.add_item(npos, dropped_item)
|
|
end
|
|
end
|
|
|
|
-- Remove falling entity if it cannot be placed
|
|
self.object:remove()
|
|
end
|
|
end
|
|
})
|
|
|
|
|
|
--[[
|
|
core.override_item("default:gravel", {
|
|
falling_step = function(self, pos, dtime)
|
|
print ("Gravel falling!", dtime)
|
|
end
|
|
})
|
|
]]
|
|
|
|
|
|
print("[MOD] Falling Item loaded")
|