291 lines
7.4 KiB
Lua
291 lines
7.4 KiB
Lua
-- Functions
|
|
|
|
local function get_sign(i)
|
|
if i == 0 then
|
|
return 0
|
|
else
|
|
return i / math.abs(i)
|
|
end
|
|
end
|
|
|
|
|
|
local function get_velocity(v, yaw, y)
|
|
local x = -math.sin(yaw) * v
|
|
local z = math.cos(yaw) * v
|
|
return {x = x, y = y, z = z}
|
|
end
|
|
|
|
|
|
local function get_v(v)
|
|
return math.sqrt(v.x ^ 2 + v.z ^ 2)
|
|
end
|
|
|
|
|
|
-- Airboat entity
|
|
|
|
local airboat = {
|
|
initial_properties = {
|
|
physical = true,
|
|
collide_with_objects = false, -- Workaround fix for a MT engine bug
|
|
collisionbox = {-0.85, -1.5, -0.85, 0.85, 1.5, 0.85},
|
|
visual = "wielditem",
|
|
visual_size = {x = 2.0, y = 2.0}, -- Scale up of nodebox is these * 1.5
|
|
textures = {"airboat:airboat_nodebox"},
|
|
},
|
|
|
|
-- Custom fields
|
|
driver = nil,
|
|
removed = false,
|
|
v = 0,
|
|
vy = 0,
|
|
rot = 0,
|
|
auto = false,
|
|
}
|
|
|
|
|
|
function airboat.on_rightclick(self, clicker)
|
|
if not clicker or not clicker:is_player() then
|
|
return
|
|
end
|
|
local name = clicker:get_player_name()
|
|
if self.driver and name == self.driver then
|
|
-- Detach
|
|
self.driver = nil
|
|
self.auto = false
|
|
clicker:set_detach()
|
|
default.player_attached[name] = false
|
|
default.player_set_animation(clicker, "stand" , 30)
|
|
local pos = clicker:getpos()
|
|
minetest.after(0.1, function()
|
|
clicker:setpos(pos)
|
|
end)
|
|
elseif not self.driver then
|
|
-- Attach
|
|
local attach = clicker:get_attach()
|
|
if attach and attach:get_luaentity() then
|
|
local luaentity = attach:get_luaentity()
|
|
if luaentity.driver then
|
|
luaentity.driver = nil
|
|
end
|
|
clicker:set_detach()
|
|
end
|
|
self.driver = name
|
|
clicker:set_attach(self.object, "",
|
|
{x = 0, y = -2, z = 0}, {x = 0, y = 0, z = 0})
|
|
default.player_attached[name] = true
|
|
minetest.after(0.2, function()
|
|
default.player_set_animation(clicker, "sit" , 30)
|
|
end)
|
|
clicker:set_look_horizontal(self.object:getyaw())
|
|
end
|
|
end
|
|
|
|
|
|
function airboat.on_activate(self, staticdata, dtime_s)
|
|
self.object:set_armor_groups({immortal = 1})
|
|
end
|
|
|
|
|
|
function airboat.on_punch(self, puncher)
|
|
if not puncher or not puncher:is_player() or self.removed then
|
|
return
|
|
end
|
|
|
|
local name = puncher:get_player_name()
|
|
if self.driver and name == self.driver then
|
|
-- Detach
|
|
self.driver = nil
|
|
puncher:set_detach()
|
|
default.player_attached[name] = false
|
|
end
|
|
if not self.driver then
|
|
-- Move to inventory
|
|
self.removed = true
|
|
local inv = puncher:get_inventory()
|
|
if not (creative and creative.is_enabled_for
|
|
and creative.is_enabled_for(name))
|
|
or not inv:contains_item("main", "airboat:airboat") then
|
|
local leftover = inv:add_item("main", "airboat:airboat")
|
|
if not leftover:is_empty() then
|
|
minetest.add_item(self.object:getpos(), leftover)
|
|
end
|
|
end
|
|
minetest.after(0.1, function()
|
|
self.object:remove()
|
|
end)
|
|
end
|
|
end
|
|
|
|
|
|
function airboat.on_step(self, dtime)
|
|
self.v = get_v(self.object:getvelocity()) * get_sign(self.v)
|
|
self.vy = self.object:getvelocity().y
|
|
|
|
-- Controls
|
|
if self.driver then
|
|
local driver_objref = minetest.get_player_by_name(self.driver)
|
|
if driver_objref then
|
|
local ctrl = driver_objref:get_player_control()
|
|
if ctrl.up and ctrl.down then
|
|
if not self.auto then
|
|
self.auto = true
|
|
minetest.chat_send_player(self.driver,
|
|
"[airboat] Cruise on")
|
|
end
|
|
elseif ctrl.down then
|
|
self.v = self.v - 0.1
|
|
if self.auto then
|
|
self.auto = false
|
|
minetest.chat_send_player(self.driver,
|
|
"[airboat] Cruise off")
|
|
end
|
|
elseif ctrl.up or self.auto then
|
|
self.v = self.v + 0.1
|
|
end
|
|
if ctrl.left then
|
|
self.rot = self.rot + 0.001
|
|
elseif ctrl.right then
|
|
self.rot = self.rot - 0.001
|
|
end
|
|
if ctrl.jump then
|
|
self.vy = self.vy + 0.075
|
|
elseif ctrl.sneak then
|
|
self.vy = self.vy - 0.075
|
|
end
|
|
else
|
|
-- Player left server while driving
|
|
-- In MT 5.0.0 use 'airboat:on_detach_child()' to do this
|
|
self.driver = nil
|
|
self.auto = false
|
|
minetest.log("warning", "[airboat] Driver left server while" ..
|
|
" driving. This may cause some 'Pushing ObjectRef to" ..
|
|
" removed/deactivated object' warnings.")
|
|
end
|
|
end
|
|
|
|
-- Early return for stationary vehicle
|
|
if self.v == 0 and self.rot == 0 and self.vy == 0 then
|
|
self.object:setpos(self.object:getpos())
|
|
return
|
|
end
|
|
|
|
-- Reduction and limiting of linear speed
|
|
local s = get_sign(self.v)
|
|
self.v = self.v - 0.02 * s
|
|
if s ~= get_sign(self.v) then
|
|
self.v = 0
|
|
end
|
|
if math.abs(self.v) > 6 then
|
|
self.v = 6 * get_sign(self.v)
|
|
end
|
|
|
|
-- Reduction and limiting of rotation
|
|
local sr = get_sign(self.rot)
|
|
self.rot = self.rot - 0.0003 * sr
|
|
if sr ~= get_sign(self.rot) then
|
|
self.rot = 0
|
|
end
|
|
if math.abs(self.rot) > 0.015 then
|
|
self.rot = 0.015 * get_sign(self.rot)
|
|
end
|
|
|
|
-- Reduction and limiting of vertical speed
|
|
local sy = get_sign(self.vy)
|
|
self.vy = self.vy - 0.03 * sy
|
|
if sy ~= get_sign(self.vy) then
|
|
self.vy = 0
|
|
end
|
|
if math.abs(self.vy) > 4 then
|
|
self.vy = 4 * get_sign(self.vy)
|
|
end
|
|
|
|
local new_acce = {x = 0, y = 0, z = 0}
|
|
-- Bouyancy in liquids
|
|
local p = self.object:getpos()
|
|
p.y = p.y - 1.5
|
|
local def = minetest.registered_nodes[minetest.get_node(p).name]
|
|
if def and (def.liquidtype == "source" or def.liquidtype == "flowing") then
|
|
new_acce = {x = 0, y = 10, z = 0}
|
|
end
|
|
|
|
self.object:setpos(self.object:getpos())
|
|
self.object:setvelocity(get_velocity(self.v, self.object:getyaw(), self.vy))
|
|
self.object:setacceleration(new_acce)
|
|
self.object:setyaw(self.object:getyaw() + (1 + dtime) * self.rot)
|
|
end
|
|
|
|
|
|
minetest.register_entity("airboat:airboat", airboat)
|
|
|
|
|
|
-- Craftitem
|
|
|
|
minetest.register_craftitem("airboat:airboat", {
|
|
description = "Airboat",
|
|
inventory_image = "airboat_airboat_inv.png",
|
|
wield_scale = {x = 4, y = 4, z = 4},
|
|
liquids_pointable = true,
|
|
|
|
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]
|
|
|
|
-- Run any on_rightclick function of pointed node instead
|
|
if udef and udef.on_rightclick and
|
|
not (placer and placer:is_player() and
|
|
placer:get_player_control().sneak) then
|
|
return udef.on_rightclick(under, node, placer, itemstack,
|
|
pointed_thing) or itemstack
|
|
end
|
|
|
|
if pointed_thing.type ~= "node" then
|
|
return itemstack
|
|
end
|
|
|
|
pointed_thing.under.y = pointed_thing.under.y + 2
|
|
local airboat = minetest.add_entity(pointed_thing.under,
|
|
"airboat:airboat")
|
|
if airboat then
|
|
if placer then
|
|
airboat:setyaw(placer:get_look_horizontal())
|
|
end
|
|
local player_name = placer and placer:get_player_name() or ""
|
|
if not (creative and creative.is_enabled_for and
|
|
creative.is_enabled_for(player_name)) then
|
|
itemstack:take_item()
|
|
end
|
|
end
|
|
return itemstack
|
|
end,
|
|
})
|
|
|
|
|
|
-- Nodebox for entity wielditem visual
|
|
|
|
minetest.register_node("airboat:airboat_nodebox", {
|
|
description = "Airboat Nodebox",
|
|
tiles = { -- Top, base, right, left, front, back
|
|
"airboat_airboat_top.png",
|
|
"airboat_airboat_base.png",
|
|
"airboat_airboat_right.png",
|
|
"airboat_airboat_left.png",
|
|
"airboat_airboat_front.png",
|
|
"airboat_airboat_back.png",
|
|
},
|
|
paramtype = "light",
|
|
drawtype = "nodebox",
|
|
node_box = {
|
|
type = "fixed",
|
|
fixed = { -- Widmin, heimin, lenmin, widmax, heimax, lenmax
|
|
{-0.271, -0.167, -0.5, 0.271, 0.375, 0.5}, -- Envelope
|
|
{-0.167, -0.5, -0.25, 0.167, -0.167, 0.25}, -- Gondola
|
|
{-0.021, 0.375, -0.5, 0.021, 0.5, -0.25}, -- Top fin
|
|
{-0.021, -0.292, -0.5, 0.021, -0.167, -0.25}, -- Base fin
|
|
{-0.396, 0.083, -0.5, -0.271, 0.125, -0.25}, -- Left fin
|
|
{ 0.271, 0.083, -0.5, 0.396, 0.125, -0.25}, -- Right fin
|
|
},
|
|
},
|
|
groups = {not_in_creative_inventory = 1},
|
|
})
|