394 lines
11 KiB
Lua
394 lines
11 KiB
Lua
mobs = {}
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function mobs:register_mob(name, def)
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minetest.register_entity(name, {
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hp_max = def.hp_max,
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physical = true,
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collisionbox = def.collisionbox,
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visual = def.visual,
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visual_size = def.visual_size,
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textures = def.textures,
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makes_footstep_sound = def.makes_footstep_sound,
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view_range = def.view_range,
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walk_velocity = def.walk_velocity,
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run_velocity = def.run_velocity,
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damage = def.damage,
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light_damage = def.light_damage,
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water_damage = def.water_damage,
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lava_damage = def.lava_damage,
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drops = def.drops,
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armor = def.armor,
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drawtype = def.drawtype,
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on_rightclick = def.on_rightclick,
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type = def.type,
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attack_type = def.attack_type,
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arrow = def.arrow,
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shoot_interval = def.shoot_interval,
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sounds = def.sounds,
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timer = 0,
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attack = {player=nil, dist=nil},
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state = "stand",
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v_start = false,
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old_y = nil,
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set_velocity = function(self, v)
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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) * -v
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local z = math.cos(yaw) * v
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self.object:setvelocity({x=x, y=self.object:getvelocity().y, z=z})
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end,
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get_velocity = function(self)
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local v = self.object:getvelocity()
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return (v.x^2 + v.z^2)^(0.5)
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end,
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on_step = function(self, dtime)
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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.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:punch(self.object, 1.0, {
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full_punch_interval=1.0,
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groupcaps={
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fleshy={times={[self.armor]=1/damage}},
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}
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}, nil)
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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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self.timer = self.timer+dtime
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if self.state ~= "attack" then
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if self.timer < 1 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 math.random(1, 100) <= 10 then
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minetest.sound_play(self.sounds.random, {object = self.object})
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end
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local do_env_damage = function(self)
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if self.light_damage and self.light_damage ~= 0 and self.object:getpos().y>0 and minetest.env:get_node_light(self.object:getpos()) > 3 then
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self.object:punch(self.object, 1.0, {
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full_punch_interval=1.0,
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groupcaps={
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fleshy={times={[self.armor]=1/self.light_damage}},
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}
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}, nil)
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end
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if self.water_damage and self.water_damage ~= 0 and string.find(minetest.env:get_node(self.object:getpos()).name, "default:water") then
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self.object:punch(self.object, 1.0, {
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full_punch_interval=1.0,
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groupcaps={
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fleshy={times={[self.armor]=1/self.water_damage}},
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}
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}, nil)
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end
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if self.lava_damage and self.lava_damage ~= 0 and string.find(minetest.env:get_node(self.object:getpos()).name, "default:lava") then
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self.object:punch(self.object, 1.0, {
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full_punch_interval=1.0,
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groupcaps={
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fleshy={times={[self.armor]=1/self.lava_damage}},
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}
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}, nil)
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end
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end
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if self.state == "attack" and self.timer > 1 then
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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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if self.type == "monster" then
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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 dist < self.view_range then
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if self.attack.dist then
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if self.attack.dist < dist then
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self.state = "attack"
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self.attack.player = player
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self.attack.dist = dist
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end
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else
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self.state = "attack"
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self.attack.player = player
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self.attack.dist = dist
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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.state == "stand" then
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if math.random(1, 2) == 1 then
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self.object:setyaw(self.object:getyaw()+((math.random(0,360)-180)/180*math.pi))
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end
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if math.random(1, 100) <= 50 then
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self.set_velocity(self, self.walk_velocity)
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self.state = "walk"
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end
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elseif self.state == "walk" then
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if math.random(1, 100) <= 30 then
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self.object:setyaw(self.object:getyaw()+((math.random(0,360)-180)/180*math.pi))
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self.set_velocity(self, self.get_velocity(self))
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end
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if math.random(1, 100) <= 10 then
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self.set_velocity(self, 0)
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self.state = "stand"
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end
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if 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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elseif self.state == "attack" and self.attack_type == "dogfight" then
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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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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 > 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.run_velocity)
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else
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if 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_velocity(self, self.run_velocity)
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end
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else
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self.set_velocity(self, 0)
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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 d1 = 10
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local d2 = 10
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local d3 = 10
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if self.damage > 0 then
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d3 = 1/self.damage
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end
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if self.damage > 1 then
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d2 = 1/(self.damage-1)
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end
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if self.damage > 2 then
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d1 = 1/(self.damage-2)
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end
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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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self.attack.player:punch(self.object, 1.0, {
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full_punch_interval=1.0,
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groupcaps={
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fleshy={times={[1]=d1, [2]=d2, [3]=d3}},
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}
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}, vec)
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end
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end
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elseif self.state == "attack" and self.attack_type == "shoot" then
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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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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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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 obj = minetest.env:add_entity(self.object:getpos(), 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+1
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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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end
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end
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end,
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on_activate = function(self, staticdata)
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self.object:set_armor_groups({fleshy=self.armor})
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self.object:setacceleration({x=0, y=-10, z=0})
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self.state = "stand"
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self.object:setvelocity({x=0, y=self.object:getvelocity().y, z=0})
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self.object:setyaw(math.random(1, 360)/180*math.pi)
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end,
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on_punch = function(self, hitter)
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if self.object:get_hp() <= 0 then
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if hitter and hitter:is_player() and hitter:get_inventory() then
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for _,drop in ipairs(self.drops) do
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if math.random(1, drop.chance) == 1 then
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hitter:get_inventory():add_item("main", ItemStack(drop.name.." "..math.random(drop.min, drop.max)))
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end
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end
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else
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for _,drop in ipairs(self.drops) do
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if math.random(1, drop.chance) == 1 then
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for i=1,math.random(drop.min, drop.max) do
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local obj = minetest.env:add_item(self.object:getpos(), drop.name)
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if obj then
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obj:get_luaentity().collect = true
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local x = math.random(1, 5)
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if math.random(1,2) == 1 then
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x = -x
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end
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local z = math.random(1, 5)
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if math.random(1,2) == 1 then
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z = -z
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end
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obj:setvelocity({x=1/x, y=obj:getvelocity().y, z=1/z})
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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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end
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end,
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})
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end
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function mobs:register_spawn(name, nodes, max_light, min_light, chance, mobs_per_30_block_radius)
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minetest.register_abm({
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nodenames = nodes,
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neighbors = nodes,
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interval = 30,
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chance = chance,
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action = function(pos, node)
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pos.y = pos.y+1
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if not minetest.env:get_node_light(pos) then
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return
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end
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if minetest.env:get_node_light(pos) > max_light then
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return
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end
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if minetest.env:get_node_light(pos) < min_light then
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return
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end
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if minetest.env:get_node(pos).name ~= "air" then
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return
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end
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pos.y = pos.y+1
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if minetest.env:get_node(pos).name ~= "air" then
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return
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end
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local count = 0
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for _,obj in pairs(minetest.env:get_objects_inside_radius(pos, 30)) do
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if obj:is_player() then
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return
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elseif obj:get_luaentity().name == name then
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count = count+1
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end
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end
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if count > mobs_per_30_block_radius then
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return
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end
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if minetest.setting_getbool("display_mob_spawn") then
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minetest.chat_send_all("[mobs] Add "..name.." at "..minetest.pos_to_string(pos))
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end
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minetest.env:add_entity(pos, name)
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end
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})
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end
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function mobs:register_arrow(name, def)
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minetest.register_entity(name, {
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physical = false,
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visual = def.visual,
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visual_size = def.visual_size,
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textures = def.textures,
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velocity = def.velocity,
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hit_player = def.hit_player,
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hit_node = def.hit_node,
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on_step = function(self, dtime)
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local pos = self.object:getpos()
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if minetest.env:get_node(self.object:getpos()).name ~= "air" then
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self.hit_node(self, pos, node)
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self.object:remove()
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return
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end
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pos.y = pos.y-1
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for _,player in pairs(minetest.env:get_objects_inside_radius(pos, 1)) do
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if player:is_player() then
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self.hit_player(self, player)
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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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})
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end
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