added boats mod as submodule

.gitmodules

+[submodule "mods/boats"]
+	path = mods/boats
+	url = https://github.com/tenplus1/boats

boats @ ffaf921c

+Subproject commit ffaf921ce4a5644c62eced2754bffe1a41950e73

mods/boats/README.txt

-Minetest 0.4 mod: boats
-=======================
-by PilzAdam, slightly modified for NeXt
-changed by TenPlus1 to add some new features
- - boat is destroyed when crashing (drops 3 wood)
- - boat turns faster
- - used model from ds_rowboat mod
-
-License of source code:
------------------------
-WTFPL
-
-License of media (textures and sounds):
----------------------------------------
-WTFPL
-
-Authors of media files:
------------------------
-textures: Zeg9
-model: thetoon and Zeg9, modified by PavelS(SokolovPavel)

mods/boats/depends.txt

-default
-mobs?
\ No newline at end of file

mods/boats/init.lua

-handlers = {}
-
-minetest.register_on_leaveplayer(function(player)
-	handlers[player:get_player_name()] = nil
-end)
-
---
--- Helper functions
---
-
-local function is_water(pos)
-
-	return minetest.get_item_group(minetest.get_node(pos).name, "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 square = math.sqrt
-
-local function get_v(v)
-
-	return square(v.x *v.x + v.z *v.z)
-end
-
---
--- Boat entity
---
-
-local boat = {
-	physical = true,
-	collisionbox = {-0.5, -0.4, -0.5, 0.5, 0.3, 0.5},
-	visual = "mesh",
-	mesh = "rowboat.x",
-	textures = {"default_wood.png"},
-	driver = nil,
-	v = 0,
-	last_v = 0,
-	removed = false
-}
-
-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
-
-		handlers[name] = nil
-		self.driver = nil
-
-		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({x=pos.x, y=pos.y+0.2, z=pos.z})
-		end)
-
-	elseif not self.driver then
-
-		if handlers[name] and handlers[name].driver then
-			handlers[name].driver = nil
-		end
-
-		handlers[name] = self.object:get_luaentity()
-		self.driver = clicker
-
-		clicker:set_attach(self.object, "",
-			{x = 0, y = 11, z = -3}, {x = 0, y = 0, z = 0})
-
-		default.player_attached[name] = true
-
-		minetest.after(0.2, function()
-			default.player_set_animation(clicker, "sit" , 30)
-		end)
-
-		self.object:setyaw(clicker:get_look_yaw() - math.pi / 2)
-	end
-end
-
-function boat.on_activate(self, staticdata, dtime_s)
-
-	if mobs and mobs.entity and mobs.entity == false then
-		self.object:remove()
-		return
-	end
-
-	self.object:set_armor_groups({immortal = 1})
-	self.v = 0
-	self.v2 = self.v
-	self.last_v = self.v
-	self.count = 0
-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
-		local name = puncher:get_player_name()
-		puncher:set_detach()
-		self.driver = nil
-		handlers[name] = nil
-		default.player_attached[name] = false
-	end
-
-	if not self.driver then
-
-		self.removed = true
-
-		if not minetest.setting_getbool("creative_mode") then
-
-			local inv = puncher:get_inventory()
-
-			if inv:room_for_item("main", "boats:boat") then
-				inv:add_item("main", "boats:boat")
-			else
-				minetest.add_item(self.object:getpos(), "boats:boat")
-			end
-		end
-
-		self.object:remove()
-	end
-end
-
-function boat.on_step(self, dtime)
-
-	--  after 10 seconds remove boat and drop as item if not boarded
-	self.count = self.count + dtime
-
-	if self.count > 10 then
-		--minetest.add_item(self.object:getpos(), "boats:boat")
-		--self.object:remove()
-		return
-	end
-
-	self.v = get_v(self.object:getvelocity()) * get_sign(self.v)
-
-	if self.driver then
-
-		self.count = 0
-
-		local ctrl = self.driver:get_player_control()
-		local yaw = self.object:getyaw()
-
-		if ctrl.up then
-			self.v = self.v + 0.1
-		elseif ctrl.down then
-			self.v = self.v - 0.1
-		end
-
-		if ctrl.left then
-
-			if self.v < 0 then
-				self.object:setyaw(yaw - (1 + dtime) * 0.08) -- 0.03 changed to speed up turning
-			else
-				self.object:setyaw(yaw + (1 + dtime) * 0.08) -- 0.03
-			end
-
-		elseif ctrl.right then
-
-			if self.v < 0 then
-				self.object:setyaw(yaw + (1 + dtime) * 0.08) -- 0.03
-			else
-				self.object:setyaw(yaw - (1 + dtime) * 0.08) -- 0.03
-			end
-		end
-	end
-
-	local velo = self.object:getvelocity()
-
-	if self.v == 0 and velo.x == 0 and velo.y == 0 and velo.z == 0 then
-		--self.object:setpos(self.object:getpos())
-		return
-	end
-
-	local s = get_sign(self.v)
-	self.v = self.v - 0.02 * s
-
-	if s ~= get_sign(self.v) then
-
-		self.object:setvelocity({x = 0, y = 0, z = 0})
-		self.v = 0
-
-		return
-	end
-
-	if math.abs(self.v) > 4.5 then
-		self.v = 4.5 * get_sign(self.v)
-	end
-
-	local p = self.object:getpos()
-	local new_velo = {x = 0, y = 0, z = 0}
-	local new_acce = {x = 0, y = 0, z = 0}
-
-	p.y = p.y - 0.5
-
-	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 = 0, z = 0} -- y was 1
-		else
-			new_acce = {x = 0, y = -9.8, z = 0}
-		end
-
-		new_velo = get_velocity(self.v, self.object:getyaw(), self.object:getvelocity().y)
-		--self.object:setpos(self.object:getpos())
-	else
-		p.y = p.y + 1
-
-		if is_water(p) then
-
-			local y = self.object:getvelocity().y
-
-			if y >= 4.5 then
-				y = 4.5
-			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:getyaw(), y)
-			--self.object:setpos(self.object:getpos())
-		else
-			new_acce = {x = 0, y = 0, z = 0}
-
-			if math.abs(self.object:getvelocity().y) < 1 then
-				local pos = self.object:getpos()
-				pos.y = math.floor(pos.y) + 0.5
-				self.object:setpos(pos)
-				new_velo = get_velocity(self.v, self.object:getyaw(), 0)
-			else
-				new_velo = get_velocity(self.v, self.object:getyaw(), self.object:getvelocity().y)
-				--self.object:setpos(self.object:getpos())
-			end
-		end
-	end
-
-	self.object:setvelocity(new_velo)
-	self.object:setacceleration(new_acce)
-
-	-- if boat comes to sudden stop then it has crashed, destroy boat and drop 3x wood
-	if self.v2 - self.v >= 3 then
-
-		if self.driver then
---print ("Crash! with driver", self.v2 - self.v)
-			self.driver:set_detach()
-			default.player_attached[self.driver:get_player_name()] = false
-			default.player_set_animation(self.driver, "stand" , 30)
-		else
---print ("Crash! no driver")
-		end
-		
-		minetest.add_item(self.object:getpos(), "default:wood 3")
-
-		self.object:remove()
-
-		return
-	end
-
-	self.v2 = self.v
-
-end
-
-minetest.register_entity("boats:boat", boat)
-
-minetest.register_craftitem("boats:boat", {
-	description = "Boat",
-	inventory_image = "rowboat_inventory.png",
-	wield_image = "rowboat_wield.png",
-	wield_scale = {x = 2, y = 2, z = 1},
-	liquids_pointable = true,
-
-	on_place = function(itemstack, placer, pointed_thing)
-
-		if pointed_thing.type ~= "node"
-		or not is_water(pointed_thing.under) then
-			return
-		end
-
-		pointed_thing.under.y = pointed_thing.under.y + 0.5
-
-		minetest.add_entity(pointed_thing.under, "boats:boat")
-
-		if not minetest.setting_getbool("creative_mode") then
-			itemstack:take_item()
-		end
-
-		return itemstack
-	end,
-})
-
-minetest.register_craft({
-	output = "boats:boat",
-	recipe = {
-		{"", "", ""},
-		{"group:wood", "", "group:wood"},
-		{"group:wood", "group:wood", "group:wood"},
-	},
-})
-
-minetest.register_alias("ds_rowboat:ds_rowboat", "boats:boat")
-
-print ("[MOD] Boats loaded")