local S = minetest.get_translator(minetest.get_current_modname()) local S = minetest.get_translator(minetest.get_current_modname()) local boat_visual_size = {x = 1, y = 1, z = 1} local paddling_speed = 22 local boat_y_offset = 0.35 local boat_y_offset_ground = boat_y_offset + 0.6 local boat_side_offset = 1.001 local boat_max_hp = 4 local function is_group(pos, group) local nn = minetest.get_node(pos).name return minetest.get_item_group(nn, group) ~= 0 end local function is_river_water(p) return true end local function is_ice(pos) return false 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 function check_object(obj) return obj and (obj:is_player() or obj:get_luaentity()) and obj end local function get_visual_size(obj) return obj:is_player() and {x = 1, y = 1, z = 1} or obj:get_luaentity()._old_visual_size or obj:get_properties().visual_size end local function set_attach(boat) boat._driver:set_attach(boat.object, "", {x = 0, y = 0.42, z = -1}, {x = 0, y = 0, z = 0}) end local function set_double_attach(boat) boat._driver:set_attach(boat.object, "", {x = 0, y = 0.42, z = 0.8}, {x = 0, y = 0, z = 0}) boat._passenger:set_attach(boat.object, "", {x = 0, y = 0.42, z = -2.2}, {x = 0, y = 0, z = 0}) end local function attach_object(self, obj) if self._driver then if self._driver:is_player() then self._passenger = obj else self._passenger = self._driver self._driver = obj end set_double_attach(self) else self._driver = obj set_attach(self) end local visual_size = get_visual_size(obj) local yaw = self.object:get_yaw() obj:set_properties({visual_size = vector.divide(visual_size, boat_visual_size)}) if obj:is_player() then local name = obj:get_player_name() 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) obj:set_look_horizontal(yaw) mcl_title.set(obj, "actionbar", {text=S("Sneak to dismount"), color="white", stay=60}) else obj:get_luaentity()._old_visual_size = visual_size end end local function detach_object(obj, change_pos) obj:set_detach() obj:set_properties({visual_size = get_visual_size(obj)}) if obj:is_player() then mcl_player.player_attached[obj:get_player_name()] = false mcl_player.player_set_animation(obj, "stand" , 30) else obj:get_luaentity()._old_visual_size = nil end if change_pos then obj:set_pos(vector.add(obj:get_pos(), vector.new(0, 0.2, 0))) end end -- -- Boat entity -- local boat = { physical = true, pointable = 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}, selectionbox = {-0.7, -0.35, -0.7, 0.7, 0.3, 0.7}, visual = "mesh", mesh = "sum_airship_boat.b3d", textures = {"sum_airship_texture_oak_boat.png", "sum_airship_texture_oak_boat.png", "sum_airship_texture_oak_boat.png", "sum_airship_texture_oak_boat.png", "sum_airship_texture_oak_boat.png"}, visual_size = boat_visual_size, hp_max = boat_max_hp, damage_texture_modifier = "^[colorize:white:0", _driver = nil, -- Attached driver (player) or nil if none _passenger = nil, _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 = "sum_airship:boat", -- Itemstring of the boat item (implies boat type) _animation = 0, -- 0: not animated; 1: paddling forwards; -1: paddling forwards _regen_timer = 0, _damage_anim = 0, } minetest.register_on_respawnplayer(detach_object) function boat.on_rightclick(self, clicker) if self._passenger or not clicker or clicker:get_attach() then return end attach_object(self, clicker) end function boat.on_activate(self, staticdata, dtime_s) self.object:set_armor_groups({fleshy = 100}) local data = minetest.deserialize(staticdata) if type(data) == "table" then self._v = data.v self._last_v = self._v self._itemstring = data.itemstring while #data.textures < 5 do table.insert(data.textures, data.textures[1]) end 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_death(self, killer) mcl_burning.extinguish(self.object) if killer and killer:is_player() and minetest.is_creative_enabled(killer:get_player_name()) then local inv = killer:get_inventory() if not inv:contains_item("main", self._itemstring) then inv:add_item("main", self._itemstring) end else minetest.add_item(self.object:get_pos(), self._itemstring) end if self._driver then detach_object(self._driver) end if self._passenger then detach_object(self._passenger) end self._driver = nil self._passenger = nil end function boat.on_punch(self, puncher, time_from_last_punch, tool_capabilities, dir, damage) if damage > 0 then self._regen_timer = 0 end end function boat.on_step(self, dtime, moveresult) mcl_burning.tick(self.object, dtime, self) self._v = get_v(self.object:get_velocity()) * get_sign(self._v) local v_factor = 1 local v_slowdown = 0.1 local p = self.object:get_pos() local on_water = true local on_ice = false local in_water = false local in_river_water = false local waterp = {x=p.x, y=p.y-boat_y_offset - 0.1, z=p.z} local hp = self.object:get_hp() local regen_timer = self._regen_timer + dtime if hp >= boat_max_hp then regen_timer = 0 elseif regen_timer >= 0.5 then hp = hp + 1 self.object:set_hp(hp) regen_timer = 0 end self._regen_timer = regen_timer if moveresult and moveresult.collides then for _, collision in pairs(moveresult.collisions) do local pos = collision.node_pos if collision.type == "node" and minetest.get_item_group(minetest.get_node(pos).name, "dig_by_boat") > 0 then minetest.dig_node(pos) end end end local climb = 0 local forward = 0 local had_passenger = self._passenger self._driver = check_object(self._driver) self._passenger = check_object(self._passenger) if self._passenger then if not self._driver then self._driver = self._passenger self._passenger = nil else local ctrl = self._passenger:get_player_control() if ctrl and ctrl.sneak then detach_object(self._passenger, true) self._passenger = nil end end end if self._driver then if had_passenger and not self._passenger then set_attach(self) end local ctrl = self._driver:get_player_control() if ctrl and ctrl.sneak then detach_object(self._driver, true) self._driver = nil return end local yaw = self.object:get_yaw() if ctrl and ctrl.up then -- Forwards forward = forward + 1 elseif ctrl and ctrl.down then forward = forward - 1 end if ctrl and ctrl.aux1 then climb = climb - 1 elseif ctrl and ctrl.jump then climb = climb + 1 end if ctrl and ctrl.left then if self._v < 0 then self.object:set_yaw(yaw - (1 + dtime) * 0.03 * v_factor) else self.object:set_yaw(yaw + (1 + dtime) * 0.03 * v_factor) end elseif ctrl and ctrl.right then if self._v < 0 then self.object:set_yaw(yaw + (1 + dtime) * 0.03 * v_factor) else self.object:set_yaw(yaw - (1 + dtime) * 0.03 * v_factor) end end end -- for _, obj in pairs(minetest.get_objects_inside_radius(self.object:get_pos(), 1.3)) do -- local entity = obj:get_luaentity() -- if entity and entity.is_mob then -- attach_object(self, obj) -- break -- end -- end local s = get_sign(self._v) local new_velo local new_acce new_acce = {x = 0, y = 0, z = 0} new_velo = get_velocity(self._v, self.object:get_yaw(), self.object:get_velocity().y) self.object:set_pos(self.object:get_pos()) -- Terminal velocity: 8 m/s per axis of travel local terminal_velocity = 50 for _,axis in pairs({"z","y","x"}) do if math.abs(new_velo[axis]) > terminal_velocity then new_velo[axis] = terminal_velocity * get_sign(new_velo[axis]) end end local yaw = self.object:get_yaw() local yaw_dir = minetest.yaw_to_dir(yaw) local anim = (boat_max_hp - hp - regen_timer * 2) / boat_max_hp * math.pi / 4 self.object:set_rotation(vector.new(anim, yaw, anim)) -- self.object:set_velocity(new_velo) -- self.object:set_acceleration(new_acce) local vel = nil if self._driver then if self._driver:get_look_dir() and false then dir = self._driver:get_look_dir() else dir = vector.multiply(yaw_dir, forward) dir.y = climb end vel = vector.multiply(dir, 20) if vel then self.object:set_acceleration(vel) end else self.object:set_acceleration({x=0,y=-5,z=0}) end local v = self.object:get_velocity() v = vector.multiply(v, 0.97) self.object:set_velocity(v) end -- Register one entity for all boat types minetest.register_entity("sum_airship:boat", boat) local boat_ids = { "boat" } local names = { S("Oak Boat") } local craftstuffs = {} if minetest.get_modpath("mcl_core") then craftstuffs = { "mcl_core:wood" } end local images = { "oak" } for b=1, #boat_ids do local itemstring = "sum_airship:"..boat_ids[b] local longdesc, usagehelp, tt_help, help, helpname help = false -- Only create one help entry for all boats if b == 1 then help = true longdesc = S("Boats are used to travel on the surface of water.") usagehelp = S("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. Use [Sneak] to leave the boat, punch the boat to make it drop as an item.") helpname = S("Boat") end tt_help = S("Water vehicle") minetest.register_craftitem(itemstring, { description = names[b], _tt_help = tt_help, _doc_items_create_entry = help, _doc_items_entry_name = helpname, _doc_items_longdesc = longdesc, _doc_items_usagehelp = usagehelp, inventory_image = "sum_airship_"..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 itemstack 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 local pos = table.copy(pointed_thing.under) local dir = vector.subtract(pointed_thing.above, pointed_thing.under) if math.abs(dir.x) > 0.9 or math.abs(dir.z) > 0.9 then pos = vector.add(pos, vector.multiply(dir, boat_side_offset)) -- elseif true then -- pos = vector.add(pos, vector.multiply(dir, boat_y_offset)) else pos = vector.add(pos, vector.multiply(dir, boat_y_offset_ground)) end local boat = minetest.add_entity(pos, "sum_airship:boat") local texture = "sum_airship_texture_"..images[b].."_boat.png" boat:get_luaentity()._itemstring = itemstring boat:set_properties({textures = { texture, texture, texture, texture, texture }}) boat:set_yaw(placer:get_look_horizontal()) if not minetest.is_creative_enabled(placer:get_player_name()) 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, "sum_airship: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") and doc.sub.identifier then doc.sub.identifier.register_object("sum_airship:boat", "craftitems", "sum_airship:boat") end