VoxeLibre/mods/ENTITIES/mobs_mc/wither.lua

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--MCmobs v0.4
--maikerumine
--made for MC like Survival game
--License for code WTFPL and otherwise stated in readmes
local S = minetest.get_translator("mobs_mc")
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local mobs_griefing = minetest.settings:get_bool("mobs_griefing") ~= false
local function atan(x)
if not x or x ~= x then
return 0
else
return math.atan(x)
end
end
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--###################
--################### WITHER
--###################
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mobs_mc.wither_count_overworld = 0
mobs_mc.wither_count_nether = 0
mobs_mc.wither_count_end = 0
mcl_mobs.register_mob("mobs_mc:wither", {
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description = S("Wither"),
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type = "monster",
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spawn_class = "hostile",
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hp_max = 300,
hp_min = 300,
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xp_min = 50,
xp_max = 50,
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armor = {undead = 80, fleshy = 100},
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-- This deviates from MC Wiki's size, which makes no sense
collisionbox = {-0.9, 0.4, -0.9, 0.9, 2.45, 0.9},
visual = "mesh",
mesh = "mobs_mc_wither.b3d",
textures = {
{"mobs_mc_wither.png"},
},
visual_size = {x=4, y=4},
makes_footstep_sound = true,
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view_range = 50,
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fear_height = 4,
walk_velocity = 2,
run_velocity = 4,
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strafes = true,
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sounds = {
shoot_attack = "mobs_mc_ender_dragon_shoot",
attack = "mobs_mc_ender_dragon_attack",
-- TODO: sounds
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distance = 60,
},
jump = true,
jump_height = 10,
fly = true,
makes_footstep_sound = false,
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dogshoot_switch = 1,
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dogshoot_count_max = 1,
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attack_animals = true,
can_despawn = false,
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drops = {
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{name = "mcl_mobitems:nether_star",
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chance = 1,
min = 1,
max = 1},
},
lava_damage = 0,
fire_damage = 0,
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attack_type = "custom",
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explosion_strength = 8,
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dogshoot_stop = true,
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arrow = "mobs_mc:wither_skull",
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reach = 5,
shoot_interval = 0.5,
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shoot_offset = -0.5,
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animation = {
walk_speed = 12, run_speed = 12, stand_speed = 12,
stand_start = 0, stand_end = 20,
walk_start = 0, walk_end = 20,
run_start = 0, run_end = 20,
},
harmed_by_heal = true,
is_boss = true,
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do_custom = function(self, dtime)
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if self._spawning then
if not self._spw_max then self._spw_max = self._spawning end
self._spawning = self._spawning - dtime
local bardef = {
color = "dark_purple",
text = "Wither spawning",
percentage = math.floor((self._spw_max - self._spawning) / self._spw_max * 100),
}
local pos = self.object:get_pos()
for _, player in pairs(minetest.get_connected_players()) do
local d = vector.distance(pos, player:get_pos())
if d <= 80 then
mcl_bossbars.add_bar(player, bardef, true, d)
end
end
self.object:set_yaw(self._spawning*10)
local factor = math.floor((math.sin(self._spawning*10)+1.5) * 85)
local str = minetest.colorspec_to_colorstring({r=factor, g=factor, b=factor})
self.object:set_texture_mod("^[brighten^[multiply:"..str)
if self._spawning <= 0 then
if mobs_griefing and not minetest.is_protected(pos, "") then
mcl_explosions.explode(pos, 10, { drop_chance = 1.0 }, self.object)
else
mcl_mobs.mob_class.safe_boom(self, pos, 10)
end
self.object:set_texture_mod("")
self._spawning = nil
self._spw_max = nil
else
return false
end
end
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self._custom_timer = self._custom_timer + dtime
if self._custom_timer > 1 then
self.health = math.min(self.health + 1, self.hp_max)
self._custom_timer = self._custom_timer - 1
end
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if self._spawner then
local spawner = minetest.get_player_by_name(self._spawner)
if spawner then
self._death_timer = 0
local pos = self.object:get_pos()
local spw = spawner:get_pos()
local dist = vector.distance(pos, spw)
if dist > 60 then -- teleport to the player who spawned the wither TODO add a setting to disable this
local R = 10
pos.x = spw.x + math.random(-R, R)
pos.y = spw.y + math.random(-R, R)
pos.z = spw.z + math.random(-R, R)
self.object:set_pos(pos)
end
else
self._death_timer = self._death_timer + self.health - self._health_old
if self.health == self._health_old then self._death_timer = self._death_timer + dtime end
if self._death_timer > 100 then
self.object:remove()
return false
end
self._health_old = self.health
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end
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end
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local dim = mcl_worlds.pos_to_dimension(self.object:get_pos())
if dim == "overworld" then mobs_mc.wither_count_overworld = mobs_mc.wither_count_overworld + 1
elseif dim == "nether" then mobs_mc.wither_count_nether = mobs_mc.wither_count_nether + 1
elseif dim == "end" then mobs_mc.wither_count_end = mobs_mc.wither_count_end + 1 end
local rand_factor
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if self.health < (self.hp_max / 2) then
self.base_texture = "mobs_mc_wither_half_health.png"
self.fly = false
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self._arrow_resistant = true
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rand_factor = 3
else
self.base_texture = "mobs_mc_wither.png"
self.fly = true
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self._arrow_resistant = false
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rand_factor = 10
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end
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self.object:set_properties({textures={self.base_texture}})
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mcl_bossbars.update_boss(self.object, "Wither", "dark_purple")
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if math.random(1, rand_factor) < 2 then
self.arrow = "mobs_mc:wither_skull_strong"
else
self.arrow = "mobs_mc:wither_skull"
end
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end,
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attack_state = function(self, dtime)
local s = self.object:get_pos()
local p = self.attack:get_pos() or s
p.y = p.y - .5
s.y = s.y + .5
local dist = vector.distance(p, s)
local vec = {
x = p.x - s.x,
y = p.y - s.y,
z = p.z - s.z
}
local yaw = (atan(vec.z / vec.x) +math.pi/ 2) - self.rotate
if p.x > s.x then yaw = yaw +math.pi end
yaw = self:set_yaw( yaw, 0, dtime)
local stay_away_from_player = vector.zero()
--strafe back and fourth
--stay away from player so as to shoot them
if dist < self.avoid_distance and self.shooter_avoid_enemy then
self:set_animation( "shoot")
stay_away_from_player=vector.multiply(vector.direction(p, s), 0.33)
end
if self.fly then
local vel = self.object:get_velocity()
local diff = s.y - p.y
local FLY_FACTOR = self.walk_velocity
if diff < 10 then
self.object:set_velocity({x=vel.x, y= FLY_FACTOR, z=vel.z})
elseif diff > 15 then
self.object:set_velocity({x=vel.x, y=-FLY_FACTOR, z=vel.z})
end
for i=1, 15 do
if minetest.get_node(vector.offset(s, 0, -i, 0)).name ~= "air" then
self.object:set_velocity({x=vel.x, y= FLY_FACTOR, z=vel.z})
break
elseif minetest.get_node(vector.offset(s, 0, i, 0)).name ~= "air" then
self.object:set_velocity({x=vel.x, y=-FLY_FACTOR/i, z=vel.z})
break
end
end
end
if self.strafes then
if not self.strafe_direction then
self.strafe_direction = 1.57
end
if math.random(40) == 1 then
self.strafe_direction = self.strafe_direction*-1
end
local dir = vector.rotate_around_axis(vector.direction(s, p), vector.new(0,1,0), self.strafe_direction)
local dir2 = vector.multiply(dir, 0.3 * self.walk_velocity)
if dir2 and stay_away_from_player then
self.acc = vector.add(dir2, stay_away_from_player)
end
else
self:set_velocity( 0)
end
if dist > 30 then self.acc = vector.add(self.acc, vector.direction(s, p)*0.01) end
local side_cor = vector.new(0.7*math.cos(yaw), 0, 0.7*math.sin(yaw))
local m = self.object:get_pos() -- position of the middle head
local sr = self.object:get_pos() + side_cor -- position of side right head
local sl = self.object:get_pos() - side_cor -- position of side left head
-- height corrections
m.y = m.y + self.collisionbox[5]
sr.y = sr.y + self.collisionbox[5] - 0.3
sl.y = sl.y + self.collisionbox[5] - 0.3
local rand_pos = math.random(1,3)
if rand_pos == 1 then m = sr
elseif rand_pos == 2 then m = sl end
-- TODO multiple targets at once?
-- TODO targeting most mobs when no players can be seen/in addition to players
if self.shoot_interval
and self.timer > self.shoot_interval
and not minetest.raycast(vector.add(m, vector.new(0,self.shoot_offset,0)), vector.add(self.attack:get_pos(), vector.new(0,1.5,0)), false, false):next()
and math.random(1, 100) <= 60 then
self.timer = 0
self:set_animation( "shoot")
-- play shoot attack sound
self:mob_sound("shoot_attack")
-- Shoot arrow
if minetest.registered_entities[self.arrow] then
local arrow, ent
local v = 1
if not self.shoot_arrow then
self.firing = true
minetest.after(1, function()
self.firing = false
end)
arrow = minetest.add_entity(m, self.arrow)
ent = arrow:get_luaentity()
if ent.velocity then
v = ent.velocity
end
ent.switch = 1
ent.owner_id = tostring(self.object) -- add unique owner id to arrow
-- important for mcl_shields
ent._shooter = self.object
ent._saved_shooter_pos = self.object:get_pos()
end
local amount = (vec.x * vec.x + vec.y * vec.y + vec.z * vec.z) ^ 0.5
-- offset makes shoot aim accurate
vec.y = vec.y + self.shoot_offset
vec.x = vec.x * (v / amount)
vec.y = vec.y * (v / amount)
vec.z = vec.z * (v / amount)
if self.shoot_arrow then
vec = vector.normalize(vec)
self:shoot_arrow(m, vec)
else
arrow:set_velocity(vec)
end
end
end
end,
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do_punch = function(self, hitter, tflp, tool_capabilities, dir)
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if self._spawning then return false end
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local ent = hitter:get_luaentity()
if ent and self._arrow_resistant and (string.find(ent.name, "arrow") or string.find(ent.name, "rocket")) then return false end
return true
end,
deal_damage = function(self, damage, mcl_reason)
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if self._spawning then return end
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if self._arrow_resistant and mcl_reason.type == "magic" then return end
self.health = self.health - damage
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end,
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on_spawn = function(self)
minetest.sound_play("mobs_mc_wither_spawn", {object=self.object, gain=1.0, max_hear_distance=64})
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self._custom_timer = 0.0
self._death_timer = 0.0
self._health_old = self.hp_max
self._spawning = 10
return true
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end,
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})
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local wither_rose_soil = { "group:grass_block", "mcl_core:dirt", "mcl_core:coarse_dirt", "mcl_nether:netherrack", "group:soul_block", "mcl_mud:mud", "mcl_moss:moss" }
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mcl_mobs.register_arrow("mobs_mc:wither_skull", {
visual = "cube",
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visual_size = {x = 0.3, y = 0.3},
textures = {
"mobs_mc_wither_projectile.png^[verticalframe:6:0", -- top
"mobs_mc_wither_projectile.png^[verticalframe:6:1", -- bottom
"mobs_mc_wither_projectile.png^[verticalframe:6:2", -- left
"mobs_mc_wither_projectile.png^[verticalframe:6:3", -- right
"mobs_mc_wither_projectile.png^[verticalframe:6:4", -- back
"mobs_mc_wither_projectile.png^[verticalframe:6:5", -- front
},
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velocity = 7,
rotate = 90,
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_lifetime = 350,
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-- direct hit
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hit_player = function(self, player)
player:punch(self.object, 1.0, {
full_punch_interval = 0.5,
damage_groups = {fleshy = 8},
}, nil)
mcl_mobs.effect_functions["withering"](player, 0.5, 10)
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mcl_mobs.mob_class.boom(self,self.object:get_pos(), 1)
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local shooter = self._shooter:get_luaentity()
if player:get_hp() <= 0 and shooter then
shooter.health = shooter.health + 5
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end
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end,
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hit_mob = function(self, mob)
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mob:punch(self.object, 1.0, {
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full_punch_interval = 0.5,
damage_groups = {fleshy = 8},
}, nil)
mcl_mobs.effect_functions["withering"](mob, 0.5, 10)
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mcl_mobs.mob_class.boom(self,self.object:get_pos(), 1)
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local l = mob:get_luaentity()
if l and l.health - 8 <= 0 then
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local shooter = self._shooter:get_luaentity()
if shooter then shooter.health = shooter.health + 5 end
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local n = minetest.find_node_near(mob:get_pos(),2,wither_rose_soil)
if n then
local p = vector.offset(n,0,1,0)
if minetest.get_node(p).name == "air" then
if not ( mobs_griefing and minetest.place_node(p,{name="mcl_flowers:wither_rose"}) ) then
minetest.add_item(p,"mcl_flowers:wither_rose")
end
end
end
end
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end,
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-- node hit, explode
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hit_node = function(self, pos, node)
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mcl_mobs.mob_class.boom(self,pos, 1)
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end
})
mcl_mobs.register_arrow("mobs_mc:wither_skull_strong", {
visual = "cube",
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visual_size = {x = 0.35, y = 0.35},
textures = {
"mobs_mc_wither_projectile_strong.png^[verticalframe:6:0", -- top
"mobs_mc_wither_projectile_strong.png^[verticalframe:6:1", -- bottom
"mobs_mc_wither_projectile_strong.png^[verticalframe:6:2", -- left
"mobs_mc_wither_projectile_strong.png^[verticalframe:6:3", -- right
"mobs_mc_wither_projectile_strong.png^[verticalframe:6:4", -- back
"mobs_mc_wither_projectile_strong.png^[verticalframe:6:5", -- front
},
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velocity = 4,
rotate = 90,
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_lifetime = 500,
-- direct hit
hit_player = function(self, player)
player:punch(self.object, 1.0, {
full_punch_interval = 0.5,
damage_groups = {fleshy = 12},
}, nil)
mcl_mobs.effect_functions["withering"](player, 0.5, 10)
local pos = self.object:get_pos()
if mobs_griefing and not minetest.is_protected(pos, "") then
mcl_explosions.explode(pos, 1, { drop_chance = 1.0, max_blast_resistance = 0, }, self.object)
else
mcl_mobs.mob_class.safe_boom(self, pos, 1) --need to call it this way bc self is the "arrow" object here
end
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local shooter = self._shooter:get_luaentity()
if player:get_hp() <= 0 and shooter then
shooter.health = shooter.health + 5
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end
end,
hit_mob = function(self, mob)
mob:punch(self.object, 1.0, {
full_punch_interval = 0.5,
damage_groups = {fleshy = 12},
}, nil)
mcl_mobs.effect_functions["withering"](mob, 0.5, 10)
local pos = self.object:get_pos()
if mobs_griefing and not minetest.is_protected(pos, "") then
mcl_explosions.explode(pos, 1, { drop_chance = 1.0, max_blast_resistance = 0, }, self.object)
else
mcl_mobs.mob_class.safe_boom(self, pos, 1) --need to call it this way bc self is the "arrow" object here
end
local l = mob:get_luaentity()
if l and l.health - 8 <= 0 then
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local shooter = self._shooter:get_luaentity()
if shooter then shooter.health = shooter.health + 5 end
local n = minetest.find_node_near(mob:get_pos(),2,wither_rose_soil)
if n then
local p = vector.offset(n,0,1,0)
if minetest.get_node(p).name == "air" then
if not ( mobs_griefing and minetest.place_node(p,{name="mcl_flowers:wither_rose"}) ) then
minetest.add_item(p,"mcl_flowers:wither_rose")
end
end
end
end
end,
-- node hit, explode
hit_node = function(self, pos, node)
if mobs_griefing and not minetest.is_protected(pos, "") then
mcl_explosions.explode(pos, 1, { drop_chance = 1.0, max_blast_resistance = 0, }, self.object)
else
mcl_mobs.mob_class.safe_boom(self, pos, 1) --need to call it this way bc self is the "arrow" object here
end
end
})
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--Spawn egg
mcl_mobs.register_egg("mobs_mc:wither", S("Wither"), "#4f4f4f", "#4f4f4f", 0, true)
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mcl_wip.register_wip_item("mobs_mc:wither")
mcl_mobs:non_spawn_specific("mobs_mc:wither","overworld",0,minetest.LIGHT_MAX+1)