438 lines
12 KiB
Lua
438 lines
12 KiB
Lua
function mobs.on_step(self,dtime)
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if self.type == "monster" and minetest.setting_getbool("only_peaceful_mobs") then
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self.object:remove()
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return
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end
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if self.lifetimer ~= false then
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self.lifetimer = self.lifetimer - dtime
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if self.lifetimer <= 0 and not self.tamed and self.type ~= "npc" then
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local player_count = 0
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for _,obj in pairs(minetest.get_objects_inside_radius(self.object:getpos(), 10)) do
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if obj:is_player() then
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player_count = player_count+1
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end
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end
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if player_count == 0 and self.state ~= "attack" then
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minetest.log("info","lifetimer expired, removed mob "..self.name)
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self.object:remove()
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return
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end
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end
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end
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if self.object:getvelocity().y > 0.1 then
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local yaw = self.object:getyaw()
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if self.drawtype == "side" then
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yaw = yaw+(math.pi/2)
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end
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local x = math.sin(yaw) * -2
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local z = math.cos(yaw) * 2
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self.object:setacceleration({x=x, y=-10, z=z})
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else
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self.object:setacceleration({x=0, y=-10, z=0})
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end
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if self.disable_fall_damage and self.object:getvelocity().y == 0 then
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if not self.old_y then
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self.old_y = self.object:getpos().y
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else
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local d = self.old_y - self.object:getpos().y
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if d > 5 then
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local damage = d-5
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self.object:set_hp(self.object:get_hp()-damage)
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if self.object:get_hp() == 0 then
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self.object:remove()
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end
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end
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self.old_y = self.object:getpos().y
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end
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end
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-- if pause state then this is where the loop ends
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-- pause is only set after a monster is hit
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if self.pause_timer > 0 then
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self.pause_timer = self.pause_timer - dtime
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if self.pause_timer <= 0 then
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self.pause_timer = 0
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end
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return
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end
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self.timer = self.timer+dtime
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if self.state ~= "attack" then
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if self.timer < self.step then
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return
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end
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self.timer = 0
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end
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if self.sounds and self.sounds.random and self.state ~= "attack" then
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if randomChance(self.random_freq) then
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if ( self.type == "npc" and randomChance(65) ) or self.type ~= "npc" then
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local maxhear = 50
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local g = 1
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if self.type == "npc" then
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maxhear = 20
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g = 0.7
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end
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minetest.sound_play(self.sounds.random, {object = self.object, max_hear_distance=maxhear, gain=g})
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end
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end
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end
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local do_env_damage = function(self)
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local pos = self.object:getpos()
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local n = minetest.get_node(pos)
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if self.light_damage and self.light_damage ~= 0
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and pos.y>0
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and minetest.get_node_light(pos)
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and minetest.get_node_light(pos) > 4
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and minetest.get_timeofday() > 0.2
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and minetest.get_timeofday() < 0.8
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then
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self.object:set_hp(self.object:get_hp()-self.light_damage)
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if self.object:get_hp() == 0 then
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self.object:remove()
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end
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end
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if self.water_damage and self.water_damage ~= 0 and
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minetest.get_item_group(n.name, "water") ~= 0
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then
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self.object:set_hp(self.object:get_hp()-self.water_damage)
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if self.object:get_hp() == 0 then
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self.object:remove()
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end
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end
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if self.lava_damage and self.lava_damage ~= 0 and
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minetest.get_item_group(n.name, "lava") ~= 0
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then
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self.object:set_hp(self.object:get_hp()-self.lava_damage)
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if self.object:get_hp() == 0 then
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self.object:remove()
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end
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end
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end
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self.env_damage_timer = self.env_damage_timer + dtime
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if self.state == "attack" and self.env_damage_timer > 1 then
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self.env_damage_timer = 0
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do_env_damage(self)
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elseif self.state ~= "attack" then
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do_env_damage(self)
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end
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self:do_avoidance()
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-- if they are attacking that should take priority over everything else so move it up here
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if self.state == "attack" and self.attack_type == "dogfight" then
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if not self.attack.player or not self.attack.player:getpos() then
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self.state = "stand"
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self:set_animation("stand")
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return
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end
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local s = self.object:getpos()
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local p = self.attack.player:getpos()
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local dist = ((p.x-s.x)^2 + (p.y-s.y)^2 + (p.z-s.z)^2)^0.5
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if dist > self.view_range or self.attack.player:get_hp() <= 0 then
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self.state = "stand"
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self.v_start = false
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self.set_velocity(self, 0)
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self.attack = {player=nil, dist=nil}
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self:set_animation("stand")
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return
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else
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self.attack.dist = dist
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end
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local vec = {x=p.x-s.x, y=p.y-s.y, z=p.z-s.z}
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local yaw = math.atan(vec.z/vec.x)+math.pi/2
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if self.drawtype == "side" then
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yaw = yaw+(math.pi/2)
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end
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if p.x > s.x then
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yaw = yaw+math.pi
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end
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self.object:setyaw(yaw)
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if self.attack.dist > self.attack_range then
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if not self.v_start then
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self.v_start = true
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self.set_velocity(self, self.run_velocity)
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else
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if self.jump == true and self.get_velocity(self) <= 0.5 and self.object:getvelocity().y == 0 then
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local v = self.object:getvelocity()
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v.y = 7
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self.object:setvelocity(v)
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end
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self.set_velocity(self, self.run_velocity)
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end
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self:set_animation("run")
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else
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self.set_velocity(self, 0)
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self:set_animation("punch")
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self.v_start = false
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if self.timer > 1 then
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self.timer = 0
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local p2 = p
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local s2 = s
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p2.y = p2.y + 1.5
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s2.y = s2.y + 1.5
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if minetest.line_of_sight(p2,s2) == true then
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if self.sounds and self.sounds.attack then
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minetest.sound_play(self.sounds.attack, {object = self.object})
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end
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if self.attack_function ~= nil then
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self.attack_function(self,self.attack.player)
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else
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self.attack.player:punch(self.object, 1.0, {
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full_punch_interval=1.0,
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damage_groups = {fleshy=self.damage}
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}, vec)
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end
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if self.attack.player:get_hp() <= 0 then
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self.state = "stand"
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self.v_start = false
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self.set_velocity(self, 0)
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self.attack = {player=nil, dist=nil}
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self:set_animation("stand")
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end
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end
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end
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end
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return
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elseif self.state == "attack" and self.attack_type == "shoot" then
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if not self.attack.player or not self.attack.player:is_player() then
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self.state = "stand"
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self:set_animation("stand")
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return
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end
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local s = self.object:getpos()
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local p = self.attack.player:getpos()
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p.y = p.y - .5
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s.y = s.y + .5
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local dist = ((p.x-s.x)^2 + (p.y-s.y)^2 + (p.z-s.z)^2)^0.5
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if dist > self.view_range or self.attack.player:get_hp() <= 0 then
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self.state = "stand"
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self.v_start = false
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self.set_velocity(self, 0)
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if self.type ~= "npc" then
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self.attack = {player=nil, dist=nil}
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end
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self:set_animation("stand")
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return
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else
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self.attack.dist = dist
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end
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local vec = {x=p.x-s.x, y=p.y-s.y, z=p.z-s.z}
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local yaw = math.atan(vec.z/vec.x)+math.pi/2
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if self.drawtype == "side" then
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yaw = yaw+(math.pi/2)
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end
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if p.x > s.x then
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yaw = yaw+math.pi
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end
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self.object:setyaw(yaw)
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self.set_velocity(self, 0)
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if self.timer > self.shoot_interval and math.random(1, 100) <= 60 then
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self.timer = 0
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self:set_animation("punch")
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if self.sounds and self.sounds.attack then
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minetest.sound_play(self.sounds.attack, {object = self.object})
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end
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local p = self.object:getpos()
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p.y = p.y + self.arrow_offset
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local obj = minetest.add_entity(p, self.arrow)
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local amount = (vec.x^2+vec.y^2+vec.z^2)^0.5
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local v = obj:get_luaentity().velocity
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vec.y = vec.y
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vec.x = vec.x*v/amount
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vec.y = vec.y*v/amount
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vec.z = vec.z*v/amount
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obj:setvelocity(vec)
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if obj:get_luaentity().drop_rate ~= nil then
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obj:setacceleration({x=vec.x, y=obj:get_luaentity().drop_rate, z=vec.z})
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end
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end
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return
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end
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-- FIND SOMEONE TO ATTACK
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if ( self.type == "monster" or self.type == "barbarian" ) and minetest.setting_getbool("enable_damage") and self.state ~= "attack" then
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if mobs.api_throttling(self) then return end
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local s = self.object:getpos()
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local inradius = minetest.get_objects_inside_radius(s,self.view_range)
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local player = nil
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local type = nil
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for _,oir in pairs(inradius) do
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if oir:is_player() then
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player = oir
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type = "player"
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else
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local obj = oir:get_luaentity()
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if obj then
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player = obj.object
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type = obj.type
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end
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end
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if type == "player" or type == "npc" then
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local s = self.object:getpos()
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local p = player:getpos()
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local sp = s
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p.y = p.y + 1
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sp.y = sp.y + 1 -- aim higher to make looking up hills more realistic
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local dist = ((p.x-s.x)^2 + (p.y-s.y)^2 + (p.z-s.z)^2)^0.5
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--print("Dist "..tostring(dist) .. " < " .. tostring(self.view_range) .. " in_fov " .. tostring(self.in_fov(self,p)))
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if dist < self.view_range and self.in_fov(self,p) then
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if minetest.line_of_sight(sp,p,2) == true then
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self.do_attack(self,player,dist)
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break
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else
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--print("no line of site")
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end
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end
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end
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end
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end
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-- NPC FIND A MONSTER TO ATTACK
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if self.type == "npc" and self.attacks_monsters and self.state ~= "attack" then
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if mobs.api_throttling(self) then return end
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local s = self.object:getpos()
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local inradius = minetest.get_objects_inside_radius(s,self.view_range)
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for _, oir in pairs(inradius) do
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local obj = oir:get_luaentity()
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if obj then
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if obj.type == "monster" or obj.type == "barbarian" then
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-- attack monster
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local p = obj.object:getpos()
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local dist = ((p.x-s.x)^2 + (p.y-s.y)^2 + (p.z-s.z)^2)^0.5
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self.do_attack(self,obj.object,dist)
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break
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end
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end
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end
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end
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if self.follow ~= nil and not self.following then
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if mobs.api_throttling(self) then return end
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for _,player in pairs(minetest.get_connected_players()) do
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local s = self.object:getpos()
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local p = player:getpos()
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local dist = ((p.x-s.x)^2 + (p.y-s.y)^2 + (p.z-s.z)^2)^0.5
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if self.view_range and dist < self.view_range then
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self.following = player
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break
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end
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end
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end
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if self.following and self.following:is_player() then
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if self.following:get_wielded_item():get_name() ~= self.follow then
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self.following = nil
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else
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local s = self.object:getpos()
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local p = self.following:getpos()
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local dist = ((p.x-s.x)^2 + (p.y-s.y)^2 + (p.z-s.z)^2)^0.5
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if dist > self.view_range then
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self.following = nil
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self.v_start = false
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else
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local vec = {x=p.x-s.x, y=p.y-s.y, z=p.z-s.z}
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local yaw = math.atan(vec.z/vec.x)+math.pi/2
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if self.drawtype == "side" then
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yaw = yaw+(math.pi/2)
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end
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if p.x > s.x then
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yaw = yaw+math.pi
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end
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self.object:setyaw(yaw)
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if dist > 2 then
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if not self.v_start then
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self.v_start = true
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self.set_velocity(self, self.walk_velocity)
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else
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if self.jump == true and self.get_velocity(self) <= 1.5 and self.object:getvelocity().y == 0 then
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local v = self.object:getvelocity()
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v.y = 6
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self.object:setvelocity(v)
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end
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self.set_velocity(self, self.walk_velocity)
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end
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self:set_animation("walk")
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else
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self.v_start = false
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self.set_velocity(self, 0)
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self:set_animation("stand")
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end
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return
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end
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end
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end
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if self.state == "stand" then
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-- randomly turn
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math.randomseed(os.clock())
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if math.random(1, 100) < self.activity_level then
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if mobs.api_throttling(self) then return end
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-- if there is a player nearby look at them
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local lp = nil
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local s = self.object:getpos()
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if self.type == "npc" then
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local o = minetest.get_objects_inside_radius(self.object:getpos(), 3)
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local yaw = 0
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for _,o in pairs(o) do
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if o:is_player() then
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lp = o:getpos()
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break
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end
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end
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end
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if lp ~= nil then
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mobs:face_pos(self,lp)
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else
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local yaw = self.object:getyaw()+((math.random(0,360)-270)/180*math.pi)
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self.object:setyaw(yaw)
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end
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end
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self.set_velocity(self, 0)
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self.set_animation(self, "stand")
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if math.random(1, 100) <= self.activity_level and self.stationary == false then
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self.set_velocity(self, self.walk_velocity)
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self.state = "walk"
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self.set_animation(self, "walk")
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end
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elseif self.state == "walk" or self.state == "path" then
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if ( math.random(1, 100) <= 30 or ( self.get_velocity(self) < self.walk_velocity ) ) and self.state ~= "path" then
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self.object:setyaw(self.object:getyaw()+((math.random(0,360)-270)/180*math.pi))
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end
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if self.jump == true and self.get_velocity(self) <= 0.5 and self.object:getvelocity().y == 0 then
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local v = self.object:getvelocity()
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v.y = 5
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self.object:setvelocity(v)
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end
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self:set_animation("walk")
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self.set_velocity(self, self.walk_velocity)
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if math.random(1, 100) <= 30 and self.state ~= "path" then
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self.set_velocity(self, 0)
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self.state = "stand"
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self:set_animation("stand")
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end
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if self.state == "path" then
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self.leg_timer = self.leg_timer + dtime
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self.check_path(self)
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end
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end
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end
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