348 lines
10 KiB
Lua
348 lines
10 KiB
Lua
--
|
|
-- Helper functions
|
|
--
|
|
|
|
local function is_water(pos)
|
|
local nn = minetest.get_node(pos).name
|
|
return minetest.get_item_group(nn, "water") ~= 0
|
|
end
|
|
|
|
|
|
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
|
|
|
|
local boat_visual_size = {x = 3, y = 3}
|
|
-- Note: This mod assumes the default player visual_size is {x=1, y=1}
|
|
local driver_visual_size = { x = 1/boat_visual_size.x, y = 1/boat_visual_size.y }
|
|
local paddling_speed = 22
|
|
local boat_y_offset = 0.35
|
|
|
|
--
|
|
-- Boat entity
|
|
--
|
|
|
|
local boat = {
|
|
physical = true,
|
|
-- Warning: Do not change the position of the collisionbox top surface,
|
|
-- lowering it causes the boat to fall through the world if underwater
|
|
collisionbox = {-0.5, -0.35, -0.5, 0.5, 0.3, 0.5},
|
|
visual = "mesh",
|
|
mesh = "mcl_boats_boat.b3d",
|
|
textures = {"mcl_boats_texture_oak_boat.png"},
|
|
visual_size = boat_visual_size,
|
|
|
|
_driver = nil, -- Attached driver (player) or nil if none
|
|
_v = 0, -- Speed
|
|
_last_v = 0, -- Temporary speed variable
|
|
_removed = false, -- If true, boat entity is considered removed (e.g. after punch) and should be ignored
|
|
_itemstring = "mcl_boats:boat", -- Itemstring of the boat item (implies boat type)
|
|
_animation = 0, -- 0: not animated; 1: paddling forwards; -1: paddling forwards
|
|
}
|
|
|
|
function boat.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 clicker == self._driver then
|
|
self._driver = nil
|
|
clicker:set_detach()
|
|
clicker:set_properties({visual_size = {x=1, y=1}})
|
|
mcl_player.player_attached[name] = false
|
|
mcl_player.player_set_animation(clicker, "stand" , 30)
|
|
local pos = clicker:get_pos()
|
|
pos = {x = pos.x, y = pos.y + 0.2, z = pos.z}
|
|
clicker:set_pos(pos)
|
|
elseif not self._driver then
|
|
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()
|
|
clicker:set_properties({visual_size = {x=1, y=1}})
|
|
end
|
|
self._driver = clicker
|
|
clicker:set_attach(self.object, "",
|
|
{x = 0, y = 0.42, z = -1}, {x = 0, y = 0, z = 0})
|
|
clicker:set_properties({ visual_size = driver_visual_size })
|
|
mcl_player.player_attached[name] = true
|
|
minetest.after(0.2, function(name)
|
|
local player = minetest.get_player_by_name(name)
|
|
if player then
|
|
mcl_player.player_set_animation(player, "sit" , 30)
|
|
end
|
|
end, name)
|
|
clicker:set_look_horizontal(self.object:get_yaw())
|
|
end
|
|
end
|
|
|
|
|
|
function boat.on_activate(self, staticdata, dtime_s)
|
|
self.object:set_armor_groups({immortal = 1})
|
|
local data = minetest.deserialize(staticdata)
|
|
if type(data) == "table" then
|
|
self._v = data.v
|
|
self._last_v = self._v
|
|
self._itemstring = data.itemstring
|
|
self.object:set_properties({textures=data.textures})
|
|
end
|
|
end
|
|
|
|
|
|
function boat.get_staticdata(self)
|
|
return minetest.serialize({
|
|
v = self._v,
|
|
itemstring = self._itemstring,
|
|
textures = self.object:get_properties().textures
|
|
})
|
|
end
|
|
|
|
|
|
function boat.on_punch(self, puncher)
|
|
if not puncher or not puncher:is_player() or self._removed then
|
|
return
|
|
end
|
|
if self._driver and puncher == self._driver then
|
|
self._driver = nil
|
|
puncher:set_detach()
|
|
puncher:set_properties({visual_size = {x=1, y=1}})
|
|
mcl_player.player_attached[puncher:get_player_name()] = false
|
|
end
|
|
if not self._driver then
|
|
self._removed = true
|
|
-- Drop boat as item on the ground after punching
|
|
if not minetest.settings:get_bool("creative_mode") then
|
|
minetest.add_item(self.object:get_pos(), self._itemstring)
|
|
else
|
|
local inv = puncher:get_inventory()
|
|
if not inv:contains_item("main", self._itemstring) then
|
|
inv:add_item("main", self._itemstring)
|
|
end
|
|
end
|
|
self.object:remove()
|
|
end
|
|
end
|
|
|
|
function boat.on_step(self, dtime)
|
|
self._v = get_v(self.object:get_velocity()) * get_sign(self._v)
|
|
if self._driver then
|
|
local ctrl = self._driver:get_player_control()
|
|
local yaw = self.object:get_yaw()
|
|
if ctrl.up then
|
|
-- Forwards
|
|
self._v = self._v + 0.1
|
|
|
|
-- Paddling animation
|
|
if self._animation ~= 1 then
|
|
self.object:set_animation({x=0, y=40}, paddling_speed, 0, true)
|
|
self._animation = 1
|
|
end
|
|
elseif ctrl.down then
|
|
-- Backwards
|
|
self._v = self._v - 0.1
|
|
|
|
-- Paddling animation, reversed
|
|
if self._animation ~= -1 then
|
|
self.object:set_animation({x=0, y=40}, -paddling_speed, 0, true)
|
|
self._animation = -1
|
|
end
|
|
else
|
|
-- Stop paddling animation if no control pressed
|
|
if self._animation ~= 0 then
|
|
self.object:set_animation({x=0, y=40}, 0, 0, true)
|
|
self._animation = 0
|
|
end
|
|
end
|
|
if ctrl.left then
|
|
if self._v < 0 then
|
|
self.object:set_yaw(yaw - (1 + dtime) * 0.03)
|
|
else
|
|
self.object:set_yaw(yaw + (1 + dtime) * 0.03)
|
|
end
|
|
elseif ctrl.right then
|
|
if self._v < 0 then
|
|
self.object:set_yaw(yaw + (1 + dtime) * 0.03)
|
|
else
|
|
self.object:set_yaw(yaw - (1 + dtime) * 0.03)
|
|
end
|
|
end
|
|
else
|
|
-- Stop paddling without driver
|
|
if self._animation ~= 0 then
|
|
self.object:set_animation({x=0, y=40}, 0, 0, true)
|
|
self._animation = 0
|
|
end
|
|
end
|
|
local velo = self.object:get_velocity()
|
|
if self._v == 0 and velo.x == 0 and velo.y == 0 and velo.z == 0 then
|
|
self.object:set_pos(self.object:get_pos())
|
|
return
|
|
end
|
|
local s = get_sign(self._v)
|
|
self._v = self._v - 0.02 * s
|
|
if s ~= get_sign(self._v) then
|
|
self.object:set_velocity({x = 0, y = 0, z = 0})
|
|
self._v = 0
|
|
return
|
|
end
|
|
if math.abs(self._v) > 5 then
|
|
self._v = 5 * get_sign(self._v)
|
|
end
|
|
|
|
local p = self.object:get_pos()
|
|
p.y = p.y - boat_y_offset
|
|
local new_velo
|
|
local new_acce = {x = 0, y = 0, z = 0}
|
|
if not is_water(p) then
|
|
local nodedef = minetest.registered_nodes[minetest.get_node(p).name]
|
|
if (not nodedef) or nodedef.walkable then
|
|
self._v = 0
|
|
new_acce = {x = 0, y = 1, z = 0}
|
|
else
|
|
new_acce = {x = 0, y = -9.8, z = 0}
|
|
end
|
|
new_velo = get_velocity(self._v, self.object:get_yaw(),
|
|
self.object:get_velocity().y)
|
|
self.object:set_pos(self.object:get_pos())
|
|
else
|
|
p.y = p.y + 1
|
|
if is_water(p) then
|
|
local y = self.object:get_velocity().y
|
|
if y >= 5 then
|
|
y = 5
|
|
elseif y < 0 then
|
|
new_acce = {x = 0, y = 20, z = 0}
|
|
else
|
|
new_acce = {x = 0, y = 5, z = 0}
|
|
end
|
|
new_velo = get_velocity(self._v, self.object:get_yaw(), y)
|
|
self.object:set_pos(self.object:get_pos())
|
|
else
|
|
new_acce = {x = 0, y = 0, z = 0}
|
|
if math.abs(self.object:get_velocity().y) < 1 then
|
|
local pos = self.object:get_pos()
|
|
pos.y = math.floor(pos.y) + boat_y_offset
|
|
self.object:set_pos(pos)
|
|
new_velo = get_velocity(self._v, self.object:get_yaw(), 0)
|
|
else
|
|
new_velo = get_velocity(self._v, self.object:get_yaw(),
|
|
self.object:get_velocity().y)
|
|
self.object:set_pos(self.object:get_pos())
|
|
end
|
|
end
|
|
end
|
|
self.object:set_velocity(new_velo)
|
|
self.object:set_acceleration(new_acce)
|
|
end
|
|
|
|
-- Register one entity for all boat types
|
|
minetest.register_entity("mcl_boats:boat", boat)
|
|
|
|
local boat_ids = { "boat", "boat_spruce", "boat_birch", "boat_jungle", "boat_acacia", "boat_dark_oak" }
|
|
local names = { "Oak Boat", "Spruce Boat", "Birch Boat", "Jungle Boat", "Acacia Boat", "Dark Oak Boat" }
|
|
local craftstuffs = {}
|
|
if minetest.get_modpath("mcl_core") then
|
|
craftstuffs = { "mcl_core:wood", "mcl_core:sprucewood", "mcl_core:birchwood", "mcl_core:junglewood", "mcl_core:acaciawood", "mcl_core:darkwood" }
|
|
end
|
|
local images = { "oak", "spruce", "birch", "jungle", "acacia", "dark_oak" }
|
|
|
|
for b=1, #boat_ids do
|
|
local itemstring = "mcl_boats:"..boat_ids[b]
|
|
|
|
local longdesc, usagehelp, help, helpname
|
|
help = false
|
|
-- Only create one help entry for all boats
|
|
if b == 1 then
|
|
help = true
|
|
longdesc = "Boats are used to travel on the surface of water."
|
|
usagehelp = "Rightclick on a water source to place the boat. Rightclick the boat to enter it. Use [Left] and [Right] to steer, [Forwards] to speed up and [Backwards] to slow down or move backwards. Rightclick the boat again to leave it, punch the boat to make it drop as an item."
|
|
helpname = "Boat"
|
|
end
|
|
|
|
minetest.register_craftitem(itemstring, {
|
|
description = names[b],
|
|
_doc_items_create_entry = help,
|
|
_doc_items_entry_name = helpname,
|
|
_doc_items_longdesc = longdesc,
|
|
_doc_items_usagehelp = usagehelp,
|
|
inventory_image = "mcl_boats_"..images[b].."_boat.png",
|
|
liquids_pointable = true,
|
|
groups = { boat = 1, transport = 1},
|
|
stack_max = 1,
|
|
on_place = function(itemstack, placer, pointed_thing)
|
|
if pointed_thing.type ~= "node" then
|
|
return
|
|
end
|
|
|
|
-- Call on_rightclick if the pointed node defines it
|
|
local node = minetest.get_node(pointed_thing.under)
|
|
if placer and not placer:get_player_control().sneak then
|
|
if minetest.registered_nodes[node.name] and minetest.registered_nodes[node.name].on_rightclick then
|
|
return minetest.registered_nodes[node.name].on_rightclick(pointed_thing.under, node, placer, itemstack) or itemstack
|
|
end
|
|
end
|
|
|
|
if not is_water(pointed_thing.under) then
|
|
return
|
|
end
|
|
pointed_thing.under.y = pointed_thing.under.y + boat_y_offset
|
|
local boat = minetest.add_entity(pointed_thing.under, "mcl_boats:boat")
|
|
boat:get_luaentity()._itemstring = itemstring
|
|
boat:set_properties({textures = { "mcl_boats_texture_"..images[b].."_boat.png" }})
|
|
boat:set_yaw(placer:get_look_horizontal())
|
|
if not minetest.settings:get_bool("creative_mode") then
|
|
itemstack:take_item()
|
|
end
|
|
return itemstack
|
|
end,
|
|
_on_dispense = function(stack, pos, droppos, dropnode, dropdir)
|
|
local below = {x=droppos.x, y=droppos.y-1, z=droppos.z}
|
|
local belownode = minetest.get_node(below)
|
|
-- Place boat as entity on or in water
|
|
if minetest.get_item_group(dropnode.name, "water") ~= 0 or (dropnode.name == "air" and minetest.get_item_group(belownode.name, "water") ~= 0) then
|
|
minetest.add_entity(droppos, "mcl_boats:boat")
|
|
else
|
|
minetest.add_item(droppos, stack)
|
|
end
|
|
end,
|
|
})
|
|
|
|
local c = craftstuffs[b]
|
|
minetest.register_craft({
|
|
output = itemstring,
|
|
recipe = {
|
|
{c, "", c},
|
|
{c, c, c},
|
|
},
|
|
})
|
|
end
|
|
|
|
minetest.register_craft({
|
|
type = "fuel",
|
|
recipe = "group:boat",
|
|
burntime = 20,
|
|
})
|
|
|
|
if minetest.get_modpath("doc_identifier") ~= nil then
|
|
doc.sub.identifier.register_object("mcl_boats:boat", "craftitems", "mcl_boats:boat")
|
|
end
|