5 local function is_water(pos)
6 local nn = minetest.get_node(pos).name
7 return minetest.get_item_group(nn, "water") ~= 0
11 local function get_sign(i)
15 return i / math.abs(i)
20 local function get_velocity(v, yaw, y)
21 local x = -math.sin(yaw) * v
22 local z = math.cos(yaw) * v
23 return {x = x, y = y, z = z}
27 local function get_v(v)
28 return math.sqrt(v.x ^ 2 + v.z ^ 2)
37 -- Warning: Do not change the position of the collisionbox top surface,
38 -- lowering it causes the boat to fall through the world if underwater
39 collisionbox = {-0.5, -0.35, -0.5, 0.5, 0.3, 0.5},
41 mesh = "boats_boat.obj",
42 textures = {"default_wood.png"},
51 function boat.on_rightclick(self, clicker)
52 if not clicker or not clicker:is_player() then
55 local name = clicker:get_player_name()
56 if self.driver and clicker == self.driver then
59 default.player_attached[name] = false
60 default.player_set_animation(clicker, "stand" , 30)
61 local pos = clicker:getpos()
62 pos = {x = pos.x, y = pos.y + 0.2, z = pos.z}
63 minetest.after(0.1, function()
66 elseif not self.driver then
67 local attach = clicker:get_attach()
68 if attach and attach:get_luaentity() then
69 local luaentity = attach:get_luaentity()
70 if luaentity.driver then
71 luaentity.driver = nil
76 clicker:set_attach(self.object, "",
77 {x = 0, y = 11, z = -3}, {x = 0, y = 0, z = 0})
78 default.player_attached[name] = true
79 minetest.after(0.2, function()
80 default.player_set_animation(clicker, "sit" , 30)
82 clicker:set_look_horizontal(self.object:getyaw())
87 function boat.on_activate(self, staticdata, dtime_s)
88 self.object:set_armor_groups({immortal = 1})
90 self.v = tonumber(staticdata)
96 function boat.get_staticdata(self)
97 return tostring(self.v)
101 function boat.on_punch(self, puncher)
102 if not puncher or not puncher:is_player() or self.removed then
105 if self.driver and puncher == self.driver then
108 default.player_attached[puncher:get_player_name()] = false
110 if not self.driver then
112 local inv = puncher:get_inventory()
113 if not (creative and creative.is_enabled_for
114 and creative.is_enabled_for(puncher:get_player_name()))
115 or not inv:contains_item("main", "boats:boat") then
116 local leftover = inv:add_item("main", "boats:boat")
117 -- if no room in inventory add a replacement boat to the world
118 if not leftover:is_empty() then
119 minetest.add_item(self.object:getpos(), leftover)
122 -- delay remove to ensure player is detached
123 minetest.after(0.1, function()
130 function boat.on_step(self, dtime)
131 self.v = get_v(self.object:getvelocity()) * get_sign(self.v)
133 local ctrl = self.driver:get_player_control()
134 local yaw = self.object:getyaw()
136 self.v = self.v + 0.1
137 elseif ctrl.down then
138 self.v = self.v - 0.1
142 self.object:setyaw(yaw - (1 + dtime) * 0.03)
144 self.object:setyaw(yaw + (1 + dtime) * 0.03)
146 elseif ctrl.right then
148 self.object:setyaw(yaw + (1 + dtime) * 0.03)
150 self.object:setyaw(yaw - (1 + dtime) * 0.03)
154 local velo = self.object:getvelocity()
155 if self.v == 0 and velo.x == 0 and velo.y == 0 and velo.z == 0 then
156 self.object:setpos(self.object:getpos())
159 local s = get_sign(self.v)
160 self.v = self.v - 0.02 * s
161 if s ~= get_sign(self.v) then
162 self.object:setvelocity({x = 0, y = 0, z = 0})
166 if math.abs(self.v) > 5 then
167 self.v = 5 * get_sign(self.v)
170 local p = self.object:getpos()
173 local new_acce = {x = 0, y = 0, z = 0}
174 if not is_water(p) then
175 local nodedef = minetest.registered_nodes[minetest.get_node(p).name]
176 if (not nodedef) or nodedef.walkable then
178 new_acce = {x = 0, y = 1, z = 0}
180 new_acce = {x = 0, y = -9.8, z = 0}
182 new_velo = get_velocity(self.v, self.object:getyaw(),
183 self.object:getvelocity().y)
184 self.object:setpos(self.object:getpos())
188 local y = self.object:getvelocity().y
192 new_acce = {x = 0, y = 20, z = 0}
194 new_acce = {x = 0, y = 5, z = 0}
196 new_velo = get_velocity(self.v, self.object:getyaw(), y)
197 self.object:setpos(self.object:getpos())
199 new_acce = {x = 0, y = 0, z = 0}
200 if math.abs(self.object:getvelocity().y) < 1 then
201 local pos = self.object:getpos()
202 pos.y = math.floor(pos.y) + 0.5
203 self.object:setpos(pos)
204 new_velo = get_velocity(self.v, self.object:getyaw(), 0)
206 new_velo = get_velocity(self.v, self.object:getyaw(),
207 self.object:getvelocity().y)
208 self.object:setpos(self.object:getpos())
212 self.object:setvelocity(new_velo)
213 self.object:setacceleration(new_acce)
217 minetest.register_entity("boats:boat", boat)
220 minetest.register_craftitem("boats:boat", {
221 description = "Boat",
222 inventory_image = "boats_inventory.png",
223 wield_image = "boats_wield.png",
224 wield_scale = {x = 2, y = 2, z = 1},
225 liquids_pointable = true,
226 groups = {flammable = 2},
228 on_place = function(itemstack, placer, pointed_thing)
229 local under = pointed_thing.under
230 local node = minetest.get_node(under)
231 local udef = minetest.registered_nodes[node.name]
232 if udef and udef.on_rightclick and
233 not (placer and placer:get_player_control().sneak) then
234 return udef.on_rightclick(under, node, placer, itemstack,
235 pointed_thing) or itemstack
238 if pointed_thing.type ~= "node" then
241 if not is_water(pointed_thing.under) then
244 pointed_thing.under.y = pointed_thing.under.y + 0.5
245 boat = minetest.add_entity(pointed_thing.under, "boats:boat")
247 boat:setyaw(placer:get_look_horizontal())
248 if not (creative and creative.is_enabled_for
249 and creative.is_enabled_for(placer:get_player_name())) then
250 itemstack:take_item()
258 minetest.register_craft({
259 output = "boats:boat",
262 {"group:wood", "", "group:wood"},
263 {"group:wood", "group:wood", "group:wood"},
267 minetest.register_craft({
269 recipe = "boats:boat",