Simple Skins as a mob

README.txt

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+=== MOBS-MOD for MINETEST-C55 ===
+by PilzAdam
+
+Inroduction:
+This mod adds some basic hostile and friendly mobs to the game.
+
+How to install:
+Unzip the archive an place it in minetest-base-directory/mods/minetest/
+if you have a windows client or a linux run-in-place client. If you have
+a linux system-wide instalation place it in ~/.minetest/mods/minetest/.
+If you want to install this mod only in one world create the folder
+worldmods/ in your worlddirectory.
+For further information or help see:
+http://wiki.minetest.com/wiki/Installing_Mods
+
+How to use the mod:
+See https://github.com/PilzAdam/mobs/wiki
+
+For developers:
+The API documentation is moved to https://github.com/PilzAdam/mobs/wiki/API
+
+License:
+Sourcecode: WTFPL (see below)
+Grahpics: WTFPL (see below)
+Models: WTFPL (by Pavel_S, see below)
+
+See also:
+http://minetest.net/
+
+         DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                    Version 2, December 2004
+
+ Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+
+ Everyone is permitted to copy and distribute verbatim or modified
+ copies of this license document, and changing it is allowed as long
+ as the name is changed.
+
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. You just DO WHAT THE FUCK YOU WANT TO. 

api.lua

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+mobs = {}
+function mobs:register_mob(name, def)
+	minetest.register_entity(name, {
+		hp_max = def.hp_max,
+		physical = true,
+		collisionbox = def.collisionbox,
+		visual = def.visual,
+		visual_size = def.visual_size,
+		mesh = def.mesh,
+		textures = def.textures,
+		makes_footstep_sound = def.makes_footstep_sound,
+		view_range = def.view_range,
+		walk_velocity = def.walk_velocity,
+		run_velocity = def.run_velocity,
+		damage = def.damage,
+		light_damage = def.light_damage,
+		water_damage = def.water_damage,
+		lava_damage = def.lava_damage,
+		disable_fall_damage = def.disable_fall_damage,
+		drops = def.drops,
+		armor = def.armor,
+		drawtype = def.drawtype,
+		on_rightclick = def.on_rightclick,
+		type = def.type,
+		attack_type = def.attack_type,
+		arrow = def.arrow,
+		shoot_interval = def.shoot_interval,
+		sounds = def.sounds,
+		animation = def.animation,
+		follow = def.follow,
+		jump = def.jump or true,
+		
+		timer = 0,
+		env_damage_timer = 0, -- only if state = "attack"
+		attack = {player=nil, dist=nil},
+		state = "stand",
+		v_start = false,
+		old_y = nil,
+		lifetimer = 300,
+		tamed = false,
+		
+		set_velocity = function(self, v)
+			local yaw = self.object:getyaw()
+			if self.drawtype == "side" then
+				yaw = yaw+(math.pi/2)
+			end
+			local x = math.sin(yaw) * -v
+			local z = math.cos(yaw) * v
+			self.object:setvelocity({x=x, y=self.object:getvelocity().y, z=z})
+		end,
+		
+		get_velocity = function(self)
+			local v = self.object:getvelocity()
+			return (v.x^2 + v.z^2)^(0.5)
+		end,
+		
+		set_animation = function(self, type)
+			if not self.animation then
+				return
+			end
+			if not self.animation.current then
+				self.animation.current = ""
+			end
+			if type == "stand" and self.animation.current ~= "stand" then
+				if
+					self.animation.stand_start
+					and self.animation.stand_end
+					and self.animation.speed_normal
+				then
+					self.object:set_animation(
+						{x=self.animation.stand_start,y=self.animation.stand_end},
+						self.animation.speed_normal, 0
+					)
+					self.animation.current = "stand"
+				end
+			elseif type == "walk" and self.animation.current ~= "walk"  then
+				if
+					self.animation.walk_start
+					and self.animation.walk_end
+					and self.animation.speed_normal
+				then
+					self.object:set_animation(
+						{x=self.animation.walk_start,y=self.animation.walk_end},
+						self.animation.speed_normal, 0
+					)
+					self.animation.current = "walk"
+				end
+			elseif type == "run" and self.animation.current ~= "run"  then
+				if
+					self.animation.run_start
+					and self.animation.run_end
+					and self.animation.speed_run
+				then
+					self.object:set_animation(
+						{x=self.animation.run_start,y=self.animation.run_end},
+						self.animation.speed_run, 0
+					)
+					self.animation.current = "run"
+				end
+			elseif type == "punch" and self.animation.current ~= "punch"  then
+				if
+					self.animation.punch_start
+					and self.animation.punch_end
+					and self.animation.speed_normal
+				then
+					self.object:set_animation(
+						{x=self.animation.punch_start,y=self.animation.punch_end},
+						self.animation.speed_normal, 0
+					)
+					self.animation.current = "punch"
+				end
+			end
+		end,
+		
+		on_step = function(self, dtime)
+			if self.type == "monster" and minetest.setting_getbool("only_peaceful_mobs") then
+				self.object:remove()
+			end
+			
+			self.lifetimer = self.lifetimer - dtime
+			if self.lifetimer <= 0 and not self.tamed then
+				local player_count = 0
+				for _,obj in ipairs(minetest.env:get_objects_inside_radius(self.object:getpos(), 10)) do
+					if obj:is_player() then
+						player_count = player_count+1
+					end
+				end
+				if player_count == 0 and self.state ~= "attack" then
+					self.object:remove()
+					return
+				end
+			end
+			
+			if self.object:getvelocity().y > 0.1 then
+				local yaw = self.object:getyaw()
+				if self.drawtype == "side" then
+					yaw = yaw+(math.pi/2)
+				end
+				local x = math.sin(yaw) * -2
+				local z = math.cos(yaw) * 2
+				self.object:setacceleration({x=x, y=-10, z=z})
+			else
+				self.object:setacceleration({x=0, y=-50, z=0})
+			end
+			
+			if self.disable_fall_damage and self.object:getvelocity().y == 0 then
+				if not self.old_y then
+					self.old_y = self.object:getpos().y
+				else
+					local d = self.old_y - self.object:getpos().y
+					if d > 5 then
+						local damage = d-5
+						self.object:set_hp(self.object:get_hp()-damage)
+						if self.object:get_hp() == 0 then
+							self.object:remove()
+						end
+					end
+					self.old_y = self.object:getpos().y
+				end
+			end
+			
+			self.timer = self.timer+dtime
+			if self.state ~= "attack" then
+				if self.timer < 1 then
+					return
+				end
+				self.timer = 0
+			end
+			
+			
+			
+			if self.type == "monster" and minetest.setting_getbool("enable_damage") then
+				for _,player in pairs(minetest.get_connected_players()) do
+					local s = self.object:getpos()
+					local p = player:getpos()
+					local dist = ((p.x-s.x)^0.5 + (p.y-s.y)^0.5 + (p.z-s.z)^2)^0.5
+					if dist < self.view_range then
+						if self.attack.dist then
+							if self.attack.dist < dist then
+								self.state = "attack"
+								self.attack.player = player
+								self.attack.dist = dist
+							end
+						else
+							self.state = "attack"
+							self.attack.player = player
+							self.attack.dist = dist
+						end
+					end
+				end
+			end
+			
+			if self.follow ~= "" and not self.following then
+				for _,player in pairs(minetest.get_connected_players()) do
+					local s = self.object:getpos()
+					local p = player:getpos()
+					local dist = ((p.x-s.x)^2 + (p.y-s.y)^2 + (p.z-s.z)^2)^0.5
+					if self.view_range and dist < self.view_range then
+						self.following = player
+					end
+				end
+			end
+			
+			if self.following and self.following:is_player() then
+				if self.following:get_wielded_item():get_name() ~= self.follow then
+					self.following = nil
+					self.v_start = false
+				else
+					local s = self.object:getpos()
+					local p = self.following:getpos()
+					local dist = ((p.x-s.x)^2 + (p.y-s.y)^2 + (p.z-s.z)^2)^0.5
+					if dist > self.view_range then
+						self.following = nil
+						self.v_start = false
+					else
+						local vec = {x=p.x-s.x, y=p.y-s.y, z=p.z-s.z}
+						local yaw = math.atan(vec.z/vec.x)+math.pi/2
+						if self.drawtype == "side" then
+							yaw = yaw+(math.pi/2)
+						end
+						if p.x > s.x then
+							yaw = yaw+math.pi
+						end
+						self.object:setyaw(yaw)
+						if dist > 3 then
+							if not self.v_start then
+								self.v_start = true
+								self.set_velocity(self, self.walk_velocity)
+							else
+								if self.jump and self.get_velocity(self) <= 0.5 and self.object:getvelocity().y == 0 then
+									local v = self.object:getvelocity()
+									v.y = 5
+									self.object:setvelocity(v)
+								end
+								self.set_velocity(self, self.walk_velocity)
+							end
+							self:set_animation("walk")
+						else
+							self.v_start = false
+							self.set_velocity(self, 0)
+							self:set_animation("stand")
+						end
+						return
+					end
+				end
+			end
+			
+			if self.state == "stand" then
+				if math.random(1, 4) == 1 then
+					self.object:setyaw(self.object:getyaw()+((math.random(0,360)-180)/180*math.pi))
+				end
+				self.set_velocity(self, 0)
+				self.set_animation(self, "stand")
+				if math.random(1, 10) <= 8 then
+					self.set_velocity(self, self.walk_velocity)
+					self.state = "walk"
+					self.set_animation(self, "walk")
+				end
+			elseif self.state == "walk" then
+				if math.random(1, 350) <= 20 then
+					self.object:setyaw(self.object:getyaw()+((math.random(0,360)-180)/180*math.pi))
+				end
+				if self.jump and self.get_velocity(self) <= 0.5 and self.object:getvelocity().y == 0 then
+					local v = self.object:getvelocity()
+					v.y = 8
+					self.object:setvelocity(v)
+				end
+				self:set_animation("walk")
+				self.set_velocity(self, self.walk_velocity)
+				if math.random(1, 150) <= 9 then
+					self.set_velocity(self, 0)
+					self.state = "stand"
+					self:set_animation("stand")
+				end
+			elseif self.state == "attack" and self.attack_type == "dogfight" then
+				if not self.attack.player or not self.attack.player:is_player() then
+					self.state = "stand"
+					self:set_animation("stand")
+					return
+				end
+				local s = self.object:getpos()
+				local p = self.attack.player:getpos()
+				local dist = ((p.x-s.x)^2 + (p.y-s.y)^2 + (p.z-s.z)^2)^0.5
+				if dist > self.view_range or self.attack.player:get_hp() <= 0 then
+					self.state = "stand"
+					self.v_start = false
+					self.set_velocity(self, 0)
+					self.attack = {player=nil, dist=nil}
+					self:set_animation("stand")
+					return
+				else
+					self.attack.dist = dist
+				end
+				
+				local vec = {x=p.x-s.x, y=p.y-s.y, z=p.z-s.z}
+				local yaw = math.atan(vec.z/vec.x)+math.pi/2
+				if self.drawtype == "side" then
+					yaw = yaw+(math.pi/2)
+				end
+				if p.x > s.x then
+					yaw = yaw+math.pi
+				end
+				self.object:setyaw(yaw)
+				if self.attack.dist > 2 then
+					if not self.v_start then
+						self.v_start = true
+						self.set_velocity(self, self.run_velocity)
+					else
+						if self.jump and self.get_velocity(self) <= 0.5 and self.object:getvelocity().y == 0 then
+							local v = self.object:getvelocity()
+							v.y = 10
+							self.object:setvelocity(v)
+						end
+						self.set_velocity(self, self.run_velocity)
+					end
+					self:set_animation("run")
+				else
+					self.set_velocity(self, 0)
+					self:set_animation("punch")
+					self.v_start = false
+					if self.timer > 2 then
+						self.timer = 0
+						
+
+						if self.sounds and self.sounds.attack then
+							minetest.sound_play(self.sounds.attack, {object = self.object})
+						end
+						self.attack.player:punch(self.object, 1.0,  {
+							full_punch_interval=2.0,
+							damage_groups = {fleshy=self.damage}
+						}, vec)
+					end
+				end
+			end
+		end,
+		
+		on_activate = function(self, staticdata, dtime_s)
+			self.object:set_armor_groups({fleshy=self.armor})
+			self.object:setacceleration({x=0, y=-25, z=0})
+			self.state = "stand"
+			self.object:setvelocity({x=0, y=self.object:getvelocity().y, z=0})
+			self.object:setyaw(math.random(1, 360)/180*math.pi)
+			
+			self.lifetimer = 100 - dtime_s
+			if staticdata then
+				local tmp = minetest.deserialize(staticdata)
+				if tmp and tmp.lifetimer then
+					self.lifetimer = tmp.lifetimer - dtime_s
+				end
+				if tmp and tmp.tamed then
+					self.tamed = tmp.tamed
+				end
+			end
+			if self.lifetimer <= 0 and not self.tamed then
+				self.object:remove()
+			end
+		end,
+		
+		get_staticdata = function(self)
+			local tmp = {
+				lifetimer = self.lifetimer,
+				tamed = self.tamed,
+			}
+			return minetest.serialize(tmp)
+		end,
+		
+		on_punch = function(self, hitter)
+			if self.object:get_hp() <= 0 then
+				if hitter and hitter:is_player() and hitter:get_inventory() then
+					for _,drop in ipairs(self.drops) do
+						if math.random(1, drop.chance) == 1 then
+							hitter:get_inventory():add_item("main", ItemStack(drop.name.." "..math.random(drop.min, drop.max)))
+						end
+					end
+				end
+			end
+		end,
+		
+	})
+end
+
+mobs.spawning_mobs = {}
+function mobs:register_spawn(name, nodes, max_light, min_light, chance, active_object_count, max_height, spawn_func)
+	mobs.spawning_mobs[name] = true
+	minetest.register_abm({
+		nodenames = nodes,
+		neighbors = {"air"},
+		interval = 60,
+		chance = chance,
+		action = function(pos, node, _, active_object_count_wider)
+			if active_object_count_wider > active_object_count then
+				return
+			end
+			if not mobs.spawning_mobs[name] then
+				return
+			end
+			pos.y = pos.y+1
+			if not minetest.env:get_node_light(pos) then
+				return
+			end
+			
+			if minetest.env:get_node(pos).name ~= "air" then
+				return
+			end
+			pos.y = pos.y+1
+			if minetest.env:get_node(pos).name ~= "air" then
+				return
+			end
+			if spawn_func and not spawn_func(pos, node) then
+				return
+			end
+			
+			if minetest.setting_getbool("display_mob_spawn") then
+				minetest.chat_send_all("[mobs] Add "..name.." at "..minetest.pos_to_string(pos))
+			end
+			minetest.env:add_entity(pos, name)
+		end
+	})
+end
+
+

depends.txt

@@ -0,0 +1 @@
+default

license.txt

@@ -0,0 +1,14 @@
+
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                    Version 2, December 2004
+
+ Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+
+ Everyone is permitted to copy and distribute verbatim or modified
+ copies of this license document, and changing it is allowed as long
+ as the name is changed.
+
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. You just DO WHAT THE FUCK YOU WANT TO.