Import boat code from Grieftest

mods/ITEMS/mcl_boats/depends.txt

@@ -1 +1,2 @@
 mcl_core
+mcl_player

mods/ITEMS/mcl_boats/init.lua

@@ -1,6 +1,266 @@
 --
 -- 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
+
+--
+-- 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 = "boat.b3d",
+	textures = {"boat.png"},
+	visual_size = {x=3, y=3},
+	  rotate = -180,
+		animation = {
+		speed_normal = 25,		speed_run = 50,
+		stand_start = 0,		stand_end = 0,
+		walk_start = 0,		walk_end = 40,
+		run_start = 0,		run_end = 40,
+	},
+	driver = nil,
+	v = 0,
+	last_v = 0,
+	removed = false
+}
+
+--[[
+--###################
+--################### BOAT
+--###################
+
+mobs:register_mob("amc:81boat", {
+	type = "animal",
+	passive = true,
+    runaway = true,
+    stepheight = 1.2,
+	hp_min = 30,
+	hp_max = 60,
+	armor = 150,
+    collisionbox = {-0.35, -0.01, -0.35, 0.35, 2, 0.35},
+    rotate = -180,
+	visual = "mesh",
+	mesh = "boat.b3d",
+    textures = {{"boat.png"},{"boat1.png"},{"boat2.png"},{"boat3.png"},{"boat4.png"},{"boat5.png"},{"boat6.png"},},
+	visual_size = {x=3, y=3},
+	walk_velocity = 0.6,
+	run_velocity = 2,
+	jump = true,
+	animation = {
+		speed_normal = 25,		speed_run = 50,
+		stand_start = 0,		stand_end = 0,
+		walk_start = 0,		walk_end = 40,
+		run_start = 0,		run_end = 40,
+	},
+})
+]]
+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()
+		mcl_player.player_attached[name] = false
+		mcl_player.player_set_animation(clicker, "stand" , 30)
+		local pos = clicker:getpos()
+		pos = {x = pos.x, y = pos.y + 0.2, z = pos.z}
+		minetest.after(0.1, function()
+			clicker:setpos(pos)
+		end)
+	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()
+		end
+		self.driver = clicker
+		clicker:set_attach(self.object, "",
+			{x = 0, y = 11, z = -3}, {x = 0, y = 0, z = 0})
+		mcl_player.player_attached[name] = true
+		minetest.after(0.2, function(clicker)
+			if clicker:is_player() then
+				mcl_player.player_set_animation(clicker, "sit" , 30)
+			end
+		end, clicker)
+		clicker:set_look_horizontal(self.object:getyaw())
+	end
+end
+
+
+function boat.on_activate(self, staticdata, dtime_s)
+	self.object:set_armor_groups({immortal = 1})
+	if staticdata then
+		self.v = tonumber(staticdata)
+	end
+	self.last_v = self.v
+end
+
+
+function boat.get_staticdata(self)
+	return tostring(self.v)
+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()
+		mcl_player.player_attached[puncher:get_player_name()] = false
+	end
+	if not self.driver then
+		self.removed = true
+		local inv = puncher:get_inventory()
+		if not (creative and creative.is_enabled_for
+				and creative.is_enabled_for(puncher:get_player_name()))
+				or not inv:contains_item("main", "mcl_boats:boat") then
+			local leftover = inv:add_item("main", "mcl_boats:boat")
+			-- if no room in inventory add a replacement boat to the world
+			if not leftover:is_empty() then
+				minetest.add_item(self.object:getpos(), leftover)
+			end
+		end
+		-- delay remove to ensure player is detached
+		minetest.after(0.1, function()
+			self.object:remove()
+		end)
+	end
+end
+
+
+function boat.on_step(self, dtime)
+	self.v = get_v(self.object:getvelocity()) * get_sign(self.v)
+	if self.driver then
+		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) * 0.03)
+			else
+				self.object:setyaw(yaw + (1 + dtime) * 0.03)
+			end
+		elseif ctrl.right then
+			if self.v < 0 then
+				self.object:setyaw(yaw + (1 + dtime) * 0.03)
+			else
+				self.object:setyaw(yaw - (1 + dtime) * 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) > 5 then
+		self.v = 5 * get_sign(self.v)
+	end
+
+	local p = self.object:getpos()
+	p.y = p.y - 0.5
+	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: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 >= 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: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)
+end
+
+
+
+
+
+
+--mc2code
+--[[
+--
+-- Helper functions
+--
 local init = os.clock()
 
 local function is_water(pos)
@@ -19,10 +279,13 @@ end
 --
 local boat = {
 	physical = true,
-	collisionbox = {-1,-0.5,-1, 1,0.5,1},
+	--collisionbox = {-1,-0.5,-1, 1,0.5,1},
+	collisionbox = {-0.5, -0.35, -0.5, 0.5, 0.3, 0.5},
 	visual = "mesh",
-	mesh = "mcl_boats_base.x",
+	--mesh = "mcl_boats_base.x",
-
+	mesh = "boats_boat.obj",
+	--textures = {"mcl_boats_texture.png"},
+	textures = {"default_wood.png"},
 	_driver = nil,
 	_v = 0,
 	_stepcount = 0,
@@ -87,7 +350,7 @@ function boat.on_step(self, dtime)
 		
 			local yaw = self.object:getyaw()
 
-			if ctrl.up and self._v<3 then
+			if ctrl.up and self._v<6 then  --was3
 				self._v = self._v + 1
 			end
 			
@@ -132,21 +395,19 @@ function boat.on_step(self, dtime)
 	end
 	
 end
+]]
+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 = { "mcl_core:wood", "mcl_core:sprucewood", "mcl_core:birchwood", "mcl_core:junglewood", "mcl_core:acaciawood", "mcl_core:darkwood" }
+local images = { "oak", "spruce", "birch", "jungle", "acacia", "dark_oak" }
 
-local woods = { "", "_spruce", "_birch", "_jungle", "_dark", "_acacia" }
+for b=1, #boat_ids do
-local names = { "Oak Boat", "Spruce Boat", "Birch Boat", "Jungle Boat", "Dark Oak Boat", "Acacia Boat" }
+	local itemstring = "mcl_boats:"..boat_ids[b]
-local craftstuffs = { "mcl_core:wood", "mcl_core:sprucewood", "mcl_core:birchwood", "mcl_core:junglewood", "mcl_core:darkwood", "mcl_core:acaciawood" }
+	minetest.register_entity(itemstring, boat)
-local images = { "oak", "spruce", "birch", "jungle", "dark_oak", "acacia" }
 
-for w=1, #woods do
+	minetest.register_craftitem(itemstring, {
-	local textures = {"mcl_boats_texture.png"}
+		description = names[b],
-	minetest.register_entity("mcl_boats:boat"..woods[w], boat)
+		inventory_image = "mcl_boats_"..images[b].."_boat.png",
-
-	minetest.register_craftitem("mcl_boats:boat"..woods[w], {
-		description = names[w],
-		_doc_items_longdesc = "Boats are used to travel on the surface of water.",
-		_doc_items_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 collect it.",
-		inventory_image = "mcl_boats_"..images[w].."_boat.png",
 		liquids_pointable = true,
 		groups = { boat = 1, transport = 1},
 		stack_max = 1,
@@ -167,7 +428,7 @@ for w=1, #woods do
 				return
 			end
 			pointed_thing.under.y = pointed_thing.under.y+0.5
-			minetest.add_entity(pointed_thing.under, "mcl_boats:boat"..woods[w])
+			minetest.add_entity(pointed_thing.under, itemstring)
 			if not minetest.setting_getbool("creative_mode") then
 				itemstack:take_item()
 			end
@@ -175,9 +436,9 @@ for w=1, #woods do
 		end,
 	})
 
-	local c = craftstuffs[w]
+	local c = craftstuffs[b]
 	minetest.register_craft({
-		output = "mcl_boats:boat"..woods[w],
+		output = itemstring,
 		recipe = {
 			{c, "", c},
 			{c, c, c},
@@ -191,5 +452,3 @@ minetest.register_craft({
 	burntime = 20,
 })
 
-local time_to_load= os.clock() - init
-print(string.format("[MOD] "..minetest.get_current_modname().." loaded in %.4f s", time_to_load))