mirror of
https://github.com/minetest/minetest_game.git
synced 2024-11-16 23:10:18 +01:00
78c632ebd4
- beds - boats - carts - key/skeleton key - seeds All these had on_place handlers that did not allow nodes with an on_rightclick() handler to be used first (if not using sneak). This code is taken from the torches mod and applied everywhere. This allows all these items to e.g. be inserted into the `frame` mod's item frames.
402 lines
10 KiB
Lua
402 lines
10 KiB
Lua
local cart_entity = {
|
|
physical = false, -- otherwise going uphill breaks
|
|
collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
|
|
visual = "mesh",
|
|
mesh = "carts_cart.b3d",
|
|
visual_size = {x=1, y=1},
|
|
textures = {"carts_cart.png"},
|
|
|
|
driver = nil,
|
|
punched = false, -- used to re-send velocity and position
|
|
velocity = {x=0, y=0, z=0}, -- only used on punch
|
|
old_dir = {x=1, y=0, z=0}, -- random value to start the cart on punch
|
|
old_pos = nil,
|
|
old_switch = 0,
|
|
railtype = nil,
|
|
attached_items = {}
|
|
}
|
|
|
|
function cart_entity:on_rightclick(clicker)
|
|
if not clicker or not clicker:is_player() then
|
|
return
|
|
end
|
|
local player_name = clicker:get_player_name()
|
|
if self.driver and player_name == self.driver then
|
|
self.driver = nil
|
|
carts:manage_attachment(clicker, nil)
|
|
elseif not self.driver then
|
|
self.driver = player_name
|
|
carts:manage_attachment(clicker, self.object)
|
|
end
|
|
end
|
|
|
|
function cart_entity:on_activate(staticdata, dtime_s)
|
|
self.object:set_armor_groups({immortal=1})
|
|
if string.sub(staticdata, 1, string.len("return")) ~= "return" then
|
|
return
|
|
end
|
|
local data = minetest.deserialize(staticdata)
|
|
if not data or type(data) ~= "table" then
|
|
return
|
|
end
|
|
self.railtype = data.railtype
|
|
if data.old_dir then
|
|
self.old_dir = data.old_dir
|
|
end
|
|
if data.old_vel then
|
|
self.old_vel = data.old_vel
|
|
end
|
|
end
|
|
|
|
function cart_entity:get_staticdata()
|
|
return minetest.serialize({
|
|
railtype = self.railtype,
|
|
old_dir = self.old_dir,
|
|
old_vel = self.old_vel
|
|
})
|
|
end
|
|
|
|
function cart_entity:on_punch(puncher, time_from_last_punch, tool_capabilities, direction)
|
|
local pos = self.object:getpos()
|
|
if not self.railtype then
|
|
local node = minetest.get_node(pos).name
|
|
self.railtype = minetest.get_item_group(node, "connect_to_raillike")
|
|
end
|
|
-- Punched by non-player
|
|
if not puncher or not puncher:is_player() then
|
|
local cart_dir = carts:get_rail_direction(pos, self.old_dir, nil, nil, self.railtype)
|
|
if vector.equals(cart_dir, {x=0, y=0, z=0}) then
|
|
return
|
|
end
|
|
self.velocity = vector.multiply(cart_dir, 2)
|
|
self.punched = true
|
|
return
|
|
end
|
|
-- Player digs cart by sneak-punch
|
|
if puncher:get_player_control().sneak then
|
|
if self.sound_handle then
|
|
minetest.sound_stop(self.sound_handle)
|
|
end
|
|
-- Detach driver and items
|
|
if self.driver then
|
|
if self.old_pos then
|
|
self.object:setpos(self.old_pos)
|
|
end
|
|
local player = minetest.get_player_by_name(self.driver)
|
|
carts:manage_attachment(player, nil)
|
|
end
|
|
for _,obj_ in ipairs(self.attached_items) do
|
|
if obj_ then
|
|
obj_:set_detach()
|
|
end
|
|
end
|
|
-- Pick up cart
|
|
local inv = puncher:get_inventory()
|
|
if not minetest.setting_getbool("creative_mode")
|
|
or not inv:contains_item("main", "carts:cart") then
|
|
local leftover = inv:add_item("main", "carts:cart")
|
|
-- If no room in inventory add a replacement cart to the world
|
|
if not leftover:is_empty() then
|
|
minetest.add_item(self.object:getpos(), leftover)
|
|
end
|
|
end
|
|
self.object:remove()
|
|
return
|
|
end
|
|
-- Player punches cart to alter velocity
|
|
local vel = self.object:getvelocity()
|
|
if puncher:get_player_name() == self.driver then
|
|
if math.abs(vel.x + vel.z) > carts.punch_speed_max then
|
|
return
|
|
end
|
|
end
|
|
|
|
local punch_dir = carts:velocity_to_dir(puncher:get_look_dir())
|
|
punch_dir.y = 0
|
|
local cart_dir = carts:get_rail_direction(pos, punch_dir, nil, nil, self.railtype)
|
|
if vector.equals(cart_dir, {x=0, y=0, z=0}) then
|
|
return
|
|
end
|
|
|
|
local punch_interval = 1
|
|
if tool_capabilities and tool_capabilities.full_punch_interval then
|
|
punch_interval = tool_capabilities.full_punch_interval
|
|
end
|
|
time_from_last_punch = math.min(time_from_last_punch or punch_interval, punch_interval)
|
|
local f = 2 * (time_from_last_punch / punch_interval)
|
|
|
|
self.velocity = vector.multiply(cart_dir, f)
|
|
self.old_dir = cart_dir
|
|
self.punched = true
|
|
end
|
|
|
|
local function rail_on_step_event(handler, obj, dtime)
|
|
if handler then
|
|
handler(obj, dtime)
|
|
end
|
|
end
|
|
|
|
-- sound refresh interval = 1.0sec
|
|
local function rail_sound(self, dtime)
|
|
if not self.sound_ttl then
|
|
self.sound_ttl = 1.0
|
|
return
|
|
elseif self.sound_ttl > 0 then
|
|
self.sound_ttl = self.sound_ttl - dtime
|
|
return
|
|
end
|
|
self.sound_ttl = 1.0
|
|
if self.sound_handle then
|
|
local handle = self.sound_handle
|
|
self.sound_handle = nil
|
|
minetest.after(0.2, minetest.sound_stop, handle)
|
|
end
|
|
local vel = self.object:getvelocity()
|
|
local speed = vector.length(vel)
|
|
if speed > 0 then
|
|
self.sound_handle = minetest.sound_play(
|
|
"carts_cart_moving", {
|
|
object = self.object,
|
|
gain = (speed / carts.speed_max) / 2,
|
|
loop = true,
|
|
})
|
|
end
|
|
end
|
|
|
|
local function get_railparams(pos)
|
|
local node = minetest.get_node(pos)
|
|
return carts.railparams[node.name] or {}
|
|
end
|
|
|
|
local function rail_on_step(self, dtime)
|
|
local vel = self.object:getvelocity()
|
|
if self.punched then
|
|
vel = vector.add(vel, self.velocity)
|
|
self.object:setvelocity(vel)
|
|
self.old_dir.y = 0
|
|
elseif vector.equals(vel, {x=0, y=0, z=0}) then
|
|
return
|
|
end
|
|
|
|
local pos = self.object:getpos()
|
|
local update = {}
|
|
|
|
-- stop cart if velocity vector flips
|
|
if self.old_vel and self.old_vel.y == 0 and
|
|
(self.old_vel.x * vel.x < 0 or self.old_vel.z * vel.z < 0) then
|
|
self.old_vel = {x = 0, y = 0, z = 0}
|
|
self.old_pos = pos
|
|
self.object:setvelocity(vector.new())
|
|
self.object:setacceleration(vector.new())
|
|
rail_on_step_event(get_railparams(pos).on_step, self, dtime)
|
|
return
|
|
end
|
|
self.old_vel = vector.new(vel)
|
|
|
|
if self.old_pos and not self.punched then
|
|
local flo_pos = vector.round(pos)
|
|
local flo_old = vector.round(self.old_pos)
|
|
if vector.equals(flo_pos, flo_old) then
|
|
-- Do not check one node multiple times
|
|
return
|
|
end
|
|
end
|
|
|
|
local ctrl, player
|
|
|
|
-- Get player controls
|
|
if self.driver then
|
|
player = minetest.get_player_by_name(self.driver)
|
|
if player then
|
|
ctrl = player:get_player_control()
|
|
end
|
|
end
|
|
|
|
if self.old_pos then
|
|
-- Detection for "skipping" nodes
|
|
local found_path = carts:pathfinder(
|
|
pos, self.old_pos, self.old_dir, ctrl, self.old_switch, self.railtype
|
|
)
|
|
|
|
if not found_path then
|
|
-- No rail found: reset back to the expected position
|
|
pos = vector.new(self.old_pos)
|
|
update.pos = true
|
|
end
|
|
end
|
|
|
|
local cart_dir = carts:velocity_to_dir(vel)
|
|
local railparams
|
|
|
|
-- dir: New moving direction of the cart
|
|
-- switch_keys: Currently pressed L/R key, used to ignore the key on the next rail node
|
|
local dir, switch_keys = carts:get_rail_direction(
|
|
pos, cart_dir, ctrl, self.old_switch, self.railtype
|
|
)
|
|
|
|
local new_acc = {x=0, y=0, z=0}
|
|
if vector.equals(dir, {x=0, y=0, z=0}) then
|
|
vel = {x = 0, y = 0, z = 0}
|
|
pos = vector.round(pos)
|
|
update.pos = true
|
|
update.vel = true
|
|
else
|
|
-- Direction change detected
|
|
if not vector.equals(dir, self.old_dir) then
|
|
vel = vector.multiply(dir, math.abs(vel.x + vel.z))
|
|
update.vel = true
|
|
if dir.y ~= self.old_dir.y then
|
|
pos = vector.round(pos)
|
|
update.pos = true
|
|
end
|
|
end
|
|
-- Center on the rail
|
|
if dir.z ~= 0 and math.floor(pos.x + 0.5) ~= pos.x then
|
|
pos.x = math.floor(pos.x + 0.5)
|
|
update.pos = true
|
|
end
|
|
if dir.x ~= 0 and math.floor(pos.z + 0.5) ~= pos.z then
|
|
pos.z = math.floor(pos.z + 0.5)
|
|
update.pos = true
|
|
end
|
|
|
|
-- Slow down or speed up..
|
|
local acc = dir.y * -4.0
|
|
|
|
-- Get rail for corrected position
|
|
railparams = get_railparams(pos)
|
|
|
|
-- no need to check for railparams == nil since we always make it exist.
|
|
local speed_mod = railparams.acceleration
|
|
if speed_mod and speed_mod ~= 0 then
|
|
-- Try to make it similar to the original carts mod
|
|
acc = acc + speed_mod
|
|
else
|
|
-- Handbrake or coast
|
|
if ctrl and ctrl.down then
|
|
acc = acc - 3
|
|
else
|
|
acc = acc - 0.4
|
|
end
|
|
end
|
|
|
|
new_acc = vector.multiply(dir, acc)
|
|
end
|
|
|
|
-- Limits
|
|
local max_vel = carts.speed_max
|
|
for _, v in pairs({"x","y","z"}) do
|
|
if math.abs(vel[v]) > max_vel then
|
|
vel[v] = carts:get_sign(vel[v]) * max_vel
|
|
new_acc[v] = 0
|
|
update.vel = true
|
|
end
|
|
end
|
|
|
|
self.object:setacceleration(new_acc)
|
|
self.old_pos = vector.new(pos)
|
|
if not vector.equals(dir, {x=0, y=0, z=0}) then
|
|
self.old_dir = vector.new(dir)
|
|
end
|
|
self.old_switch = switch_keys
|
|
|
|
if self.punched then
|
|
-- Collect dropped items
|
|
for _, obj_ in pairs(minetest.get_objects_inside_radius(pos, 1)) do
|
|
if not obj_:is_player() and
|
|
obj_:get_luaentity() and
|
|
not obj_:get_luaentity().physical_state and
|
|
obj_:get_luaentity().name == "__builtin:item" then
|
|
|
|
obj_:set_attach(self.object, "", {x=0, y=0, z=0}, {x=0, y=0, z=0})
|
|
self.attached_items[#self.attached_items + 1] = obj_
|
|
end
|
|
end
|
|
self.punched = false
|
|
update.vel = true
|
|
end
|
|
|
|
railparams = railparams or get_railparams(pos)
|
|
|
|
if not (update.vel or update.pos) then
|
|
rail_on_step_event(railparams.on_step, self, dtime)
|
|
return
|
|
end
|
|
|
|
local yaw = 0
|
|
if self.old_dir.x < 0 then
|
|
yaw = 0.5
|
|
elseif self.old_dir.x > 0 then
|
|
yaw = 1.5
|
|
elseif self.old_dir.z < 0 then
|
|
yaw = 1
|
|
end
|
|
self.object:setyaw(yaw * math.pi)
|
|
|
|
local anim = {x=0, y=0}
|
|
if dir.y == -1 then
|
|
anim = {x=1, y=1}
|
|
elseif dir.y == 1 then
|
|
anim = {x=2, y=2}
|
|
end
|
|
self.object:set_animation(anim, 1, 0)
|
|
|
|
self.object:setvelocity(vel)
|
|
if update.pos then
|
|
self.object:setpos(pos)
|
|
end
|
|
|
|
-- call event handler
|
|
rail_on_step_event(railparams.on_step, self, dtime)
|
|
end
|
|
|
|
function cart_entity:on_step(dtime)
|
|
rail_on_step(self, dtime)
|
|
rail_sound(self, dtime)
|
|
end
|
|
|
|
minetest.register_entity("carts:cart", cart_entity)
|
|
|
|
minetest.register_craftitem("carts:cart", {
|
|
description = "Cart (Sneak+Click to pick up)",
|
|
inventory_image = minetest.inventorycube("carts_cart_top.png", "carts_cart_side.png", "carts_cart_side.png"),
|
|
wield_image = "carts_cart_side.png",
|
|
on_place = function(itemstack, placer, pointed_thing)
|
|
local under = pointed_thing.under
|
|
local node = minetest.get_node(under)
|
|
local udef = minetest.registered_nodes[node.name]
|
|
if udef and udef.on_rightclick and
|
|
not (placer and placer:get_player_control().sneak) then
|
|
return udef.on_rightclick(under, node, placer, itemstack,
|
|
pointed_thing) or itemstack
|
|
end
|
|
|
|
if not pointed_thing.type == "node" then
|
|
return
|
|
end
|
|
if carts:is_rail(pointed_thing.under) then
|
|
minetest.add_entity(pointed_thing.under, "carts:cart")
|
|
elseif carts:is_rail(pointed_thing.above) then
|
|
minetest.add_entity(pointed_thing.above, "carts:cart")
|
|
else
|
|
return
|
|
end
|
|
|
|
minetest.sound_play({name = "default_place_node_metal", gain = 0.5},
|
|
{pos = pointed_thing.above})
|
|
|
|
if not minetest.setting_getbool("creative_mode") then
|
|
itemstack:take_item()
|
|
end
|
|
return itemstack
|
|
end,
|
|
})
|
|
|
|
minetest.register_craft({
|
|
output = "carts:cart",
|
|
recipe = {
|
|
{"default:steel_ingot", "", "default:steel_ingot"},
|
|
{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
|
|
},
|
|
})
|