minetest-mm/mods/mobs_monster/spider.lua

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local S = mobs.intllib
local get_velocity = function(self)
local v = self.object:get_velocity()
-- sanity check
if not v then return 0 end
return (v.x * v.x + v.z * v.z) ^ 0.5
end
local spider_types = {
{ nodes = {"default:snow", "default:snowblock", "default:dirt_with_snow"},
skins = {"mobs_spider_snowy.png"},
docile = true,
drops = nil
},
{ nodes = {"default:dirt_with_rainforest_litter", "default:jungletree"},
skins = {"mobs_spider_orange.png"},
docile = true,
drops = nil,
shoot = true
},
{ nodes = {"default:stone", "default:gravel"},
skins = {"mobs_spider_grey.png"},
docile = nil,
drops = nil,
small = true
},
{ nodes = {"default:mese", "default:stone_with_mese"},
skins = {"mobs_spider_mese.png"},
docile = nil,
drops = {
{name = "farming:string", chance = 1, min = 0, max = 2},
{name = "default:mese_crystal_fragment", chance = 2, min = 1, max = 4}}
},
{ nodes = {"ethereal:crystal_dirt", "ethereal:crystal_spike"},
skins = {"mobs_spider_crystal.png"},
docile = true,
drops = {
{name = "farming:string", chance = 1, min = 0, max = 2},
{name = "ethereal:crystal_spike", chance = 15, min = 1, max = 2}}
}
}
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-- Spider by AspireMint (CC-BY-SA 3.0 license)
mobs:register_mob("mobs_monster:spider", {
--docile_by_day = true,
group_attack = true,
type = "monster",
passive = false,
attack_type = "dogfight",
reach = 2,
damage = 3,
hp_min = 10,
hp_max = 30,
armor = 200,
collisionbox = {-0.8, -0.5, -0.8, 0.8, 0, 0.8},
visual_size = {x = 1, y = 1},
visual = "mesh",
mesh = "mobs_spider.b3d",
textures = {
{"mobs_spider_mese.png"},
{"mobs_spider_orange.png"},
{"mobs_spider_snowy.png"},
{"mobs_spider_grey.png"},
{"mobs_spider_crystal.png"},
},
makes_footstep_sound = false,
sounds = {
random = "mobs_spider",
attack = "mobs_spider",
},
walk_velocity = 1,
run_velocity = 3,
jump = true,
view_range = 15,
floats = 0,
drops = {
{name = "farming:string", chance = 1, min = 0, max = 2},
},
water_damage = 5,
lava_damage = 5,
light_damage = 0,
animation = {
speed_normal = 15,
speed_run = 20,
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stand_start = 0,
stand_end = 0,
walk_start = 1,
walk_end = 21,
run_start = 1,
run_end = 21,
punch_start = 25,
punch_end = 45,
},
-- check surrounding nodes and spawn a specific spider
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on_spawn = function(self)
local pos = self.object:get_pos() ; pos.y = pos.y - 1
local tmp
for n = 1, #spider_types do
tmp = spider_types[n]
if minetest.find_node_near(pos, 1, tmp.nodes) then
self.base_texture = tmp.skins
self.object:set_properties({textures = tmp.skins})
self.docile_by_day = tmp.docile
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if tmp.drops then
self.drops = tmp.drops
end
if tmp.shoot then
self.attack_type = "dogshoot"
self.arrow = "mobs_monster:cobweb"
self.dogshoot_switch = 1
self.dogshoot_count_max = 60
self.dogshoot_count2_max = 20
self.shoot_interval = 2
self.shoot_offset = 2
end
if tmp.small then
self.object:set_properties({
collisionbox = {-0.2, -0.2, -0.2, 0.2, 0, 0.2},
visual_size = {x = 0.25, y = 0.25}
})
end
return true
end
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end
return true -- run only once, false/nil runs every activation
end,
-- custom function to make spiders climb vertical facings
do_custom = function(self, dtime)
-- quarter second timer
self.spider_timer = (self.spider_timer or 0) + dtime
if self.spider_timer < 0.25 then
return
end
self.spider_timer = 0
-- need to be stopped to go onwards
if get_velocity(self) > 0.5 then
self.disable_falling = nil
return
end
local pos = self.object:get_pos()
local yaw = self.object:get_yaw()
-- sanity check
if not yaw then return end
pos.y = pos.y + self.collisionbox[2] - 0.2
local dir_x = -math.sin(yaw) * (self.collisionbox[4] + 0.5)
local dir_z = math.cos(yaw) * (self.collisionbox[4] + 0.5)
local nod = minetest.get_node_or_nil({
x = pos.x + dir_x,
y = pos.y + 0.5,
z = pos.z + dir_z
})
-- get current velocity
local v = self.object:get_velocity()
-- can only climb solid facings
if not nod or not minetest.registered_nodes[nod.name]
or not minetest.registered_nodes[nod.name].walkable then
self.disable_falling = nil
v.y = 0
self.object:set_velocity(v)
return
end
--print ("----", nod.name, self.disable_falling, dtime)
-- turn off falling if attached to facing
self.disable_falling = true
-- move up facing
v.x = 0 ; v.y = 0
v.y = self.jump_height
mobs:set_animation(self, "jump")
self.object:set_velocity(v)
end,
-- make spiders jump at you on attack
custom_attack = function(self, pos)
local vel = self.object:get_velocity()
self.object:set_velocity({
x = vel.x * self.run_velocity,
y = self.jump_height * 1.5,
z = vel.z * self.run_velocity
})
self.pausetimer = 0.5
return true -- continue rest of attack function
end
})
if not mobs.custom_spawn_monster then
-- above ground spawn
mobs:spawn({
name = "mobs_monster:spider",
nodes = {
"default:dirt_with_rainforest_litter", "default:snowblock",
"default:snow", "ethereal:crystal_dirt", "ethereal:cold_dirt"
},
min_light = 0,
max_light = 8,
chance = 7000,
active_object_count = 1,
min_height = 25,
max_height = 31000,
})
-- below ground spawn
mobs:spawn({
name = "mobs_monster:spider",
nodes = {"default:stone_with_mese", "default:mese", "default:stone"},
min_light = 0,
max_light = 7,
chance = 7000,
active_object_count = 1,
min_height = -31000,
max_height = -40,
})
end
mobs:register_egg("mobs_monster:spider", S("Spider"), "mobs_cobweb.png", 1)
mobs:alias_mob("mobs_monster:spider2", "mobs_monster:spider") -- compatibility
mobs:alias_mob("mobs:spider", "mobs_monster:spider")
-- cobweb
minetest.register_node(":mobs:cobweb", {
description = S("Cobweb"),
drawtype = "plantlike",
visual_scale = 1.2,
tiles = {"mobs_cobweb.png"},
inventory_image = "mobs_cobweb.png",
paramtype = "light",
sunlight_propagates = true,
liquid_viscosity = 11,
liquidtype = "source",
liquid_alternative_flowing = "mobs:cobweb",
liquid_alternative_source = "mobs:cobweb",
liquid_renewable = false,
liquid_range = 0,
walkable = false,
groups = {snappy = 1, disable_jump = 1},
drop = "farming:string",
sounds = default.node_sound_leaves_defaults()
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})
minetest.register_craft({
output = "mobs:cobweb",
recipe = {
{"farming:string", "", "farming:string"},
{"", "farming:string", ""},
{"farming:string", "", "farming:string"},
}
})
local web_place = function(pos)
local pos2 = minetest.find_node_near(pos, 1, {"air", "group:leaves"}, true)
if pos2 then
minetest.swap_node(pos2, {name = "mobs:cobweb"})
end
end
mobs:register_arrow("mobs_monster:cobweb", {
visual = "sprite",
visual_size = {x = 1, y = 1},
textures = {"mobs_cobweb.png"},
collisionbox = {-0.1, -0.1, -0.1, 0.1, 0.1, 0.1},
velocity = 15,
tail = 1,
tail_texture = "mobs_cobweb.png",
tail_size = 5,
glow = 2,
expire = 0.1,
hit_player = function(self, player)
player:punch(self.object, 1.0, {
full_punch_interval = 2.0,
damage_groups = {fleshy = 3},
}, nil)
web_place(self.object:get_pos())
end,
hit_node = function(self, pos, node)
web_place(pos)
end,
hit_mob = function(self, player)
player:punch(self.object, 1.0, {
full_punch_interval = 2.0,
damage_groups = {fleshy = 3},
}, nil)
end
})