Begin porting to creatures (cmer) mob engine

init.lua

@@ -1,5 +1,3 @@
--- Original code by Rui: WTFPL
-
 
 sneeker = {}
 sneeker.modname = core.get_current_modname()
@@ -29,7 +27,8 @@ end
 
 sneeker.log("debug", "Debugging is on")
 
-if core.settings:get_bool("log_mods", false) then
+
+if core.settings:get_bool("log_mods") then
 	core.log("action", "Loading mod \"" .. sneeker.modname .. "\" ...")
 end
 
@@ -39,25 +38,26 @@ local old_spawnegg_name = "sneeker:spawnegg"
 local scripts = {
 	"functions",
 	"tnt_function",
-	"spawn",
+	--"spawn",
-}
+	}
 
 for _, script in ipairs(scripts) do
 	dofile(sneeker.modpath .. "/" .. script .. ".lua")
 end
 
-local function jump(self,pos,direction)
+--[[
+local function jump(self, pos, direction)
 	local velocity = self.object:get_velocity()
 	if core.registered_nodes[core.get_node(pos).name].climbable then
-		self.object:set_velocity({x=velocity.x,y=4,z=velocity.z})
+		self.object:set_velocity({x=velocity.x, y=4, z=velocity.z})
 		return
 	end
 
-	local spos = {x=pos.x+direction.x,y=pos.y,z=pos.z+direction.z}
+	local spos = {x=pos.x+direction.x, y=pos.y, z=pos.z+direction.z}
 	local node = core.get_node_or_nil(spos)
 	spos.y = spos.y+1
 	local node2 = core.get_node_or_nil(spos)
-	local def,def2 = {}
+	local def, def2 = {}
 	if node and node.name then
 		def = core.registered_items[node.name]
 	end
@@ -68,16 +68,16 @@ local function jump(self,pos,direction)
 	and def2 and not def2.walkable
 	and def.drawtype ~= "fencelike" then
 		self.object:set_velocity({
-			x=velocity.x*2.2,
+			x = velocity.x*2.2,
-			y=self.jump_height,
+			y = self.jump_height,
-			z=velocity.z*2.2
+			z = velocity.z*2.2
 		})
 	end
 end
 
 local function random_turn(self)
-	if self.turn_timer > math.random(2,5) then
+	if self.turn_timer > math.random(2, 5) then
-		local select_turn = math.random(1,3)
+		local select_turn = math.random(1, 3)
 		if select_turn == 1 then
 			self.turn = "left"
 		elseif select_turn == 2 then
@@ -93,7 +93,7 @@ end
 local def = {
 	hp_max = 20,
 	physical = true,
-	collisionbox = {-0.25,-0.7,-0.25, 0.25,0.8,0.25},
+	collisionbox = {-0.25, -0.7, -0.25, 0.25, 0.8, 0.25},
 	visual = "mesh",
 	mesh = "character.b3d",
 	textures = {"sneeker.png"},
@@ -112,7 +112,7 @@ local def = {
 	knockback_level = 2
 }
 
-def.on_activate = function(self,staticdata)
+def.on_activate = function(self, staticdata)
 	self.yaw = 0
 	self.anim = 1
 	self.timer = 0
@@ -122,7 +122,7 @@ def.on_activate = function(self,staticdata)
 	self.turn_speed = 0
 	self.powered = false
 	self.knockback = false
-	self.state = math.random(1,2)
+	self.state = math.random(1, 2)
 	self.old_y = self.object:get_pos().y
 
 	local data = core.deserialize(staticdata)
@@ -132,18 +132,13 @@ def.on_activate = function(self,staticdata)
 			self.object:set_properties({textures = {"sneeker_powered.png"}})
 		end
 	else
-		if math.random(0,20) == 20 then
+		if math.random(0, 20) == 20 then
 			self.powered = true
 			self.object:set_properties({textures = {"sneeker_powered.png"}})
 		end
 	end
 end
 
-
-local function isnan(n)
-	return tostring(n) == tostring((-1)^.5)
-end
-
 def.on_step = function(self, dtime)
 	if self.knockback then
 		return
@@ -154,7 +149,7 @@ def.on_step = function(self, dtime)
 
 	local pos = self.object:get_pos()
 	local yaw = self.object:get_yaw()
-	local inside = core.get_objects_inside_radius(pos,10)
+	local inside = core.get_objects_inside_radius(pos, 10)
 	local walk_speed = self.walk_speed
 	local animation = self.animation
 	local anim_speed = self.animation_speed
@@ -165,7 +160,7 @@ def.on_step = function(self, dtime)
 	self.jump_timer = self.jump_timer+0.01
 
 	if not self.chase
-	and self.timer > math.random(2,5) then
+	and self.timer > math.random(2, 5) then
 		if math.random() > 0.8 then
 			self.state = "stand"
 		else
@@ -184,24 +179,24 @@ def.on_step = function(self, dtime)
 
 	if self.chase and self.visualx < 2 then
 		if self.hiss == false then
-			core.sound_play("sneeker_hiss",{pos=pos,gain=1.5,max_hear_distance=2*64})
+			core.sound_play("sneeker_hiss", {pos=pos, gain=1.5, max_hear_distance=2*64})
 		end
 		self.visualx = self.visualx+0.05
 		self.object:set_properties({
-			visual_size = {x=self.visualx,y=1}
+			visual_size = {x=self.visualx, y=1}
 		})
 		self.hiss = true
 	elseif self.visualx > 1 then
 		self.visualx = self.visualx-0.05
 		self.object:set_properties({
-			visual_size = {x=self.visualx,y=1}
+			visual_size = {x=self.visualx, y=1}
 		})
 		self.hiss = false
 	end
 
 	self.chase = false
 
-	for  _,object in ipairs(inside) do
+	for  _, object in ipairs(inside) do
 		if object:is_player() then
 			self.state = "chase"
 		end
@@ -209,7 +204,7 @@ def.on_step = function(self, dtime)
 
 	if self.state == "stand" then
 		if self.anim ~= ANIM_STAND then
-			self.object:set_animation({x=animation.stand_START,y=animation.stand_END},anim_speed,0)
+			self.object:set_animation({x=animation.stand_START, y=animation.stand_END}, anim_speed, 0)
 			self.anim = ANIM_STAND
 		end
 
@@ -217,19 +212,19 @@ def.on_step = function(self, dtime)
 
 		if velocity.x ~= 0
 		or velocity.z ~= 0 then
-			self.object:set_velocity({x=0,y=velocity.y,z=0})
+			self.object:set_velocity({x=0, y=velocity.y, z=0})
 		end
 	end
 
 	if self.state == "walk" then
 		if self.anim ~= ANIM_WALK then
-			self.object:set_animation({x=animation.walk_START,y=animation.walk_END},anim_speed,0)
+			self.object:set_animation({x=animation.walk_START, y=animation.walk_END}, anim_speed, 0)
 			self.anim = ANIM_WALK
 		end
 
-		self.direction = {x=math.sin(yaw)*-1,y=-10,z=math.cos(yaw)}
+		self.direction = {x=math.sin(yaw)*-1, y=-10, z=math.cos(yaw)}
 		if self.direction then
-			self.object:set_velocity({x=self.direction.x*walk_speed,y=velocity.y,z=self.direction.z*walk_speed})
+			self.object:set_velocity({x=self.direction.x*walk_speed, y=velocity.y, z=self.direction.z*walk_speed})
 		end
 
 		random_turn(self)
@@ -238,10 +233,10 @@ def.on_step = function(self, dtime)
 
 		if self.turn_timer > 1 then
 			local direction = self.direction
-			local npos = {x=pos.x+direction.x,y=pos.y+0.2,z=pos.z+direction.z}
+			local npos = {x=pos.x+direction.x, y=pos.y+0.2, z=pos.z+direction.z}
 			if velocity.x == 0 or velocity.z == 0
 			or core.registered_nodes[core.get_node(npos).name].walkable then
-				local select_turn = math.random(1,2)
+				local select_turn = math.random(1, 2)
 				if select_turn == 1 then
 					self.turn = "left"
 				elseif select_turn == 2 then
@@ -254,79 +249,67 @@ def.on_step = function(self, dtime)
 
 		-- Jump
 		if self.jump_timer > 0.2 then
-			jump(self,pos,self.direction)
+			jump(self, pos, self.direction)
 		end
 	end
 
 	if self.state == "chase" then
 		if self.anim ~= ANIM_WALK then
-			self.object:set_animation({x=animation.walk_START,y=animation.walk_END},anim_speed,0)
+			self.object:set_animation({x=animation.walk_START, y=animation.walk_END}, anim_speed, 0)
 			self.anim = ANIM_WALK
 		end
 
 		self.turn = "straight"
 
-		local inside_2 = core.get_objects_inside_radius(pos,2)
+		local inside_2 = core.get_objects_inside_radius(pos, 2)
 
 		-- Boom
 		if #inside_2 ~= 0 then
-			for  _,object in ipairs(inside_2) do
+			for  _, object in ipairs(inside_2) do
 				if object:is_player() and object:get_hp() ~= 0 then
 					self.chase = true
 					if self.visualx >= 2 then
 						self.object:remove()
-						sneeker.boom(pos,self.powered)
+						sneeker.boom(pos, self.powered)
-						core.sound_play("sneeker_explode",{pos=pos,gain=1.5,max_hear_distance=2*64})
+						core.sound_play("sneeker_explode", {pos=pos, gain=1.5, max_hear_distance=2*64})
 					end
 				end
 			end
 		end
 
 		if #inside ~= 0 then
-			for  _,object in ipairs(inside) do
+			for  _, object in ipairs(inside) do
 				if object:is_player() and object:get_hp() ~= 0 then
 					if #inside_2 ~= 0 then
-						for _,object in ipairs(inside_2) do
+						for _, object in ipairs(inside_2) do
 							-- Stop move
 							if object:is_player() then
 								if self.anim ~= ANIM_STAND then
-									self.object:set_animation({x=animation.stand_START,y=animation.stand_END},anim_speed,0)
+									self.object:set_animation({x=animation.stand_START, y=animation.stand_END}, anim_speed, 0)
 									self.anim = ANIM_STAND
 								end
-								self.object:set_velocity({x=0,y=velocity.y,z=0})
+								self.object:set_velocity({x=0, y=velocity.y, z=0})
 								return
 							end
 						end
 					end
 
 					local ppos = object:get_pos()
-					self.vec = {x=ppos.x-pos.x,y=ppos.y-pos.y,z=ppos.z-pos.z}
+					self.vec = {x=ppos.x-pos.x, y=ppos.y-pos.y, z=ppos.z-pos.z}
 					self.yaw = math.atan(self.vec.z/self.vec.x)+math.pi^2
 					if ppos.x > pos.x then
 						self.yaw = self.yaw+math.pi
 					end
 					self.yaw = self.yaw-2
 					self.object:set_yaw(self.yaw)
-					self.direction = {x=math.sin(self.yaw)*-1,y=0,z=math.cos(self.yaw)}
+					self.direction = {x=math.sin(self.yaw)*-1, y=0, z=math.cos(self.yaw)}
 
 					local direction = self.direction
-
+					self.object:set_velocity({x=direction.x*2.5, y=velocity.y, z=direction.z*2.5})
-					-- FIXME: hack
-					local can_set = true
-					for _, c in ipairs({direction.x*2.5, direction.z*2.5}) do
-						if isnan(c) then
-							can_set = false
-							break
-						end
-					end
-
-					if can_set then
-						self.object:set_velocity({x=direction.x*2.5,y=velocity.y,z=direction.z*2.5})
-					end
 
 					-- Jump
 					if self.jump_timer > 0.2 then
-						jump(self,pos,direction)
+						jump(self, pos, direction)
 					end
 				end
 			end
@@ -337,38 +320,38 @@ def.on_step = function(self, dtime)
 
 	-- Swim
 	local node = core.get_node(pos)
-	if core.get_item_group(node.name,"water") ~= 0 then
+	if core.get_item_group(node.name, "water") ~= 0 then
-		self.object:set_acceleration({x=0,y=1,z=0})
+		self.object:set_acceleration({x=0, y=1, z=0})
 		local velocity = self.object:get_velocity()
 		if self.object:get_velocity().y > 5 then
-			self.object:set_velocity({x=0,y=velocity.y-velocity.y/2,z=0})
+			self.object:set_velocity({x=0, y=velocity.y-velocity.y/2, z=0})
 		else
-			self.object:set_velocity({x=0,y=velocity.y+1,z=0})
+			self.object:set_velocity({x=0, y=velocity.y+1, z=0})
 		end
 	else
-		self.object:set_acceleration({x=0,y=-10,z=0})
+		self.object:set_acceleration({x=0, y=-10, z=0})
 	end
 end
 
-def.on_punch = function(self,puncher,time_from_last_punch,tool_capabilities,dir)
+def.on_punch = function(self, puncher, time_from_last_punch, tool_capabilities, dir)
 	if self.knockback == false then
 		local knockback_level = self.knockback_level
-		self.object:set_velocity({x=dir.x*knockback_level,y=3,z=dir.z*knockback_level})
+		self.object:set_velocity({x=dir.x*knockback_level, y=3, z=dir.z*knockback_level})
 		self.knockback = true
-		core.after(0.6,function()
+		core.after(0.6, function()
 			self.knockback = false
 		end)
 	end
 	if self.object:get_hp() < 1 then
 		local pos = self.object:get_pos()
-		local x = 1/math.random(1,5)*dir.x
+		local x = 1/math.random(1, 5)*dir.x
-		local z = 1/math.random(1,5)*dir.z
+		local z = 1/math.random(1, 5)*dir.z
-		local p = {x=pos.x+x,y=pos.y,z=pos.z+z}
+		local p = {x=pos.x+x, y=pos.y, z=pos.z+z}
 		local node = core.get_node_or_nil(p)
 		if node == nil or not node.name or node.name ~= "air" then
 			p = pos
 		end
-		local obj = core.add_item(p, {name="tnt:gunpowder",count=math.random(0,2)})
+		local obj = core.add_item(p, {name="tnt:gunpowder", count=math.random(0, 2)})
 	end
 end
 
@@ -379,6 +362,71 @@ def.get_staticdata = function(self)
 end
 
 core.register_entity(sneeker.mob_name, def)
+--]]
+
+
+local spawn_nodes = {
+	"default:dirt",
+	"default:dirt_with_grass",
+	"default:dry_dirt_with_dry_grass",
+	"default:desert_sand",
+	"default:sand",
+}
+
+if core.global_exists("nether") then
+	table.insert(spawn_nodes, "nether:rack")
+end
+
+
+cmer.register_mob({
+	name = sneeker.mob_name,
+	stats = {
+		hp = 20,
+		hostile = true,
+		lifetime = 15 * 60, -- 15 minutes
+		can_jump = 5,
+		has_kockback = true,
+		sneaky = true,
+	},
+	modes = {
+		idle = {chance=0.3, moving_speed=0,},
+		walk = {chance=0.7, moving_speed=1.5,},
+	},
+	model = {
+		mesh = "character.b3d",
+		textures = {"sneeker.png"},
+		collisionbox = {-0.25, -0.7, -0.25, 0.25, 0.8, 0.25},
+		animations = {
+			idle = {start=0, stop=79, speed=30,},
+			walk = {start=168, stop=187, speed=30,},
+		},
+	},
+	sounds = {},
+	drops = {
+		{"tnt:gunpowder", {min=1, max=2}, chance=0.66},
+	},
+	combat = {
+	--[[
+		attack_damage = ,
+		attack_speed = ,
+		attack_radius = ,
+		search_enemy = true,
+		search_timer = ,
+		search_radius = ,
+		search_type = "player",
+	]]
+	},
+	spawning = {
+		abm_nodes = spawn_nodes,
+		abm_interval = sneeker.spawn_interval,
+		abm_chance = sneeker.spawn_chance,
+		max_number = 1,
+		number = 1,
+		time_range = {min=0, max=23999},
+		light = {min=sneeker.spawn_minlight, max=sneeker.spawn_maxlight},
+		height_limit = {min=sneeker.spawn_minheight, max=sneeker.spawn_maxheight},
+	},
+})
 
 if core.global_exists("asm") then
 	asm.addEgg({

mod.conf

@@ -2,5 +2,5 @@ name = sneeker
 title = Sneeker
 description = An explosive nuisance.
 author = Rui
-depends = default, tnt
+depends = cmer, default, tnt
 optional_depends = asm_spawneggs, nether