fun_caves/demon.lua

-- Ice Demon -- creates and moves ice nodes

minetest.register_node("fun_caves:freezing_vapor", {
	description = "Freezing Vapor",
	tiles = {'fun_caves_wisp.png'},
	sunlight_propagates = true,
	use_texture_alpha = true,
	drawtype = "glasslike",
	paramtype = 'light',
	walkable = false,
	buildable_to = true,
	pointable = false,
})

local function snow_effect(pos, radius)
	if not (pos and radius and type(radius) == 'number') then
		return
	end

	minetest.add_particlespawner({
		amount = 30,
		time = 1,
		minpos = vector.subtract(pos, radius / 2),
		maxpos = vector.add(pos, radius / 2),
		minvel = {x=-10, y=-10, z=-10},
		maxvel = {x=10,  y=10,  z=10},
		minacc = vector.new(),
		maxacc = vector.new(),
		minexptime = 1,
		maxexptime = 3,
		minsize = 16,
		maxsize = 32,
		texture = "fun_caves_snowflakes.png",
	})
end


mobs:register_mob("fun_caves:ice_demon", {
	description = "Ice Demon",
	type = "monster",
	passive = false,
	damage = 3,
	attack_type = "dogfight",
	attacks_monsters = true,
	hp_min = 10,
	hp_max = 20,
	armor = 50,
	collisionbox = {-0.30,-1.0,-0.30, 0.30,0.8,0.30},
	visual = "mesh",
	mesh = "character.b3d",
	drawtype = "front",
	textures = {
		{"default_ice.png"},
	},
	makes_footstep_sound = true,
	--sounds = {
	--	random = "goblins_goblin_ambient",
	--	warcry = "goblins_goblin_attack",
	--	attack = "goblins_goblin_attack",
	--	damage = "goblins_goblin_damage",
	--	death = "goblins_goblin_death",
	--	distance = 15,
	--},
	walk_velocity = 2,
	run_velocity = 3,
	jump = true,
	drops = {
		{name = "default:ice", chance = 3, min = 1, max = 3},
		{name = "fun_caves:eternal_ice_crystal", chance = 10, min = 1, max = 1},
	},
	water_damage = 0,
	lava_damage = 4,
	light_damage = 2,
	view_range = 15,
	animation = {
		stand_start     =   0,
		stand_end       =  79,
		sit_start       =  81,
		sit_end         = 160,
		sleep_start     = 162,
		sleep_end       = 166,
		walk_start      = 168,
		walk_end        = 187,
		mine_start      = 189,
		mine_end        = 198,
		walkmine_start  = 200,
		walkmine_end    = 219,
	},
	animation_speed = 30,
	fly_in = 'fun_caves:freezing_vapor',
	do_custom = function(self)
		if not (self and fun_caves.surface_damage and fun_caves.search_replace and fun_caves.custom_ready) then
			return
		end

		-- This has to happen fast.
		if self.attack then
			self.fly = true
			local pos = self.attack:getpos()
			pos.y = pos.y - 0
			fun_caves.search_replace(pos, 1, {'default:ice', 'air'}, 'fun_caves:freezing_vapor')
		end

		if not fun_caves.custom_ready(self) then
			return
		end

		if not self.attack then
			self.fly = false
		end

		fun_caves.surface_damage(self, true)
	end,
})

if fun_caves.underzones then
	mobs:spawn_specific("fun_caves:ice_demon", {"default:ice"}, nil, -1, 10, 300, 3000, 2, fun_caves.underzones['Caina'].lower_bound, fun_caves.underzones['Caina'].upper_bound)
	mobs:spawn_specific("fun_caves:ice_demon", {"default:ice"}, {'default:torch'}, -1, 20, 100, 300, 2, fun_caves.underzones['Caina'].lower_bound, fun_caves.underzones['Caina'].upper_bound)
end


-- Blizzard Demon -- storm that slows players

local snow_demon = {
	description = "Ice Demon",
	type = "monster",
	passive = false,
	damage = 3,
	-- change to dogshoot?
	attack_type = "dogfight",
	attacks_monsters = true,
	hp_min = 10,
	hp_max = 20,
	armor = 50,
	collisionbox = {-0.30,-1.0,-0.30, 0.30,0.8,0.30},
	visual = "mesh",
	mesh = "character.b3d",
	drawtype = "front",
	textures = {
		{"default_snow.png"},
	},
	makes_footstep_sound = true,
	sounds = {
		random = "wind_howl_2",
		warcry = "wind_howl_2",
		distance = 25,
	},
	walk_velocity = 2,
	run_velocity = 3,
	jump = true,
	drops = {
		{name = "default:snow", chance = 3, min = 1, max = 3},
		{name = "fun_caves:eternal_ice_crystal", chance = 10, min = 1, max = 1},
	},
	water_damage = 0,
	lava_damage = 4,
	light_damage = 2,
	view_range = 15,
	animation = {
		stand_start     =   0,
		stand_end       =  79,
		sit_start       =  81,
		sit_end         = 160,
		sleep_start     = 162,
		sleep_end       = 166,
		walk_start      = 168,
		walk_end        = 187,
		mine_start      = 189,
		mine_end        = 198,
		walkmine_start  = 200,
		walkmine_end    = 219,
	},
	animation_speed = 30,
	do_custom = function(self)
		if not (self and fun_caves.set_status and fun_caves.custom_ready and fun_caves.surface_damage) then
			return
		end

		if not self.attack then
			self.fly = false
		end

		local pos = self.object:getpos()
		snow_effect(pos, 20)

		if self.attack then
			fun_caves.set_status(self.attack:get_player_name(), 'slow_cold', 20)
		end

		if not fun_caves.custom_ready(self) then
			return
		end

		fun_caves.surface_damage(self, true)
	end,
}

if fun_caves.register_status then
	fun_caves.register_status({
		name = 'slow_cold',
		start = function(player)
			if not player then
				return
			end

			player:set_physics_override({speed=0.3})
		end,
		terminate = function(player)
			if not player then
				return
			end

			player:set_physics_override({speed=1})
		end,
	})
end

if minetest.registered_entities["mobs_yeti:yeti"] then
	snow_demon.arrow = "mobs_yeti:snowball"
	snow_demon.attack_type = 'dogshoot'
	snow_demon.shoot_interval = .7
	snow_demon.shoot_offset = 2
end

mobs:register_mob("fun_caves:snow_demon", snow_demon)

if fun_caves.underzones then
	mobs:spawn_specific("fun_caves:snow_demon", {"default:ice"}, nil, -1, 10, 300, 3000, 2, fun_caves.underzones['Caina'].lower_bound, fun_caves.underzones['Caina'].upper_bound)
end

-- Magma Demon -- creates lava under player (!)