Added frost effect

mods/ITEMS/mcl_potions/functions.lua

@@ -531,6 +531,49 @@ mcl_potions.register_effect({
 	timer_uses_factor = true,
 })
 
+mcl_potions.register_effect({
+	name = "frost",
+	description = S("Frost"),
+	get_tt = function(factor)
+		return S("-1 HP / 1 s, can kill, -@1% running speed", math.floor(factor*100))
+	end,
+	res_condition = function(object)
+		return (not object:is_player())
+	end,
+	on_start = function(object, factor)
+		mcl_burning.extinguish(object)
+		playerphysics.add_physics_factor(object, "speed", "mcl_potions:frost", 1-factor)
+		EF.frost[object].vignette = object:hud_add({
+			hud_elem_type = "image",
+			position = {x = 0.5, y = 0.5},
+			scale = {x = -101, y = -101},
+			text = "mcl_potions_frost_hud.png",
+			z_index = -400
+		})
+	end,
+	on_hit_timer = function(object, factor, duration)
+		if object:is_player() or object:get_luaentity() then
+			mcl_util.deal_damage(object, 1, {type = "magic"})
+		end
+	end,
+	on_end = function(object)
+		playerphysics.remove_physics_factor(object, "speed", "mcl_potions:frost")
+		if not EF.frost[object] then return end
+		object:hud_remove(EF.frost[object].vignette)
+	end,
+	particle_color = "#5B7DAA",
+	uses_factor = true,
+	lvl1_factor = 0.1,
+	lvl2_factor = 0.2,
+	timer_uses_factor = false,
+	hit_timer_step = 1,
+	damage_modifier = "is_fire",
+	modifier_func = function(damage, effect_vals)
+		effect_vals.timer = effect_vals.dur
+		return 0
+	end,
+})
+
 mcl_potions.register_effect({
 	name = "food_poisoning",
 	description = S("Food Poisoning"),
@@ -643,12 +686,28 @@ mcl_potions.register_hp_hudbar_modifier({
 	priority = 0,
 })
 
+mcl_potions.register_hp_hudbar_modifier({
+	predicate = function(player)
+		if EF.frost[player] and EF.regeneration[player] then return true end
+	end,
+	icon = "mcl_potions_icon_regen_frost.png",
+	priority = 10,
+})
+
+mcl_potions.register_hp_hudbar_modifier({
+	predicate = function(player)
+		if EF.frost[player] then return true end
+	end,
+	icon = "mcl_potions_icon_frost.png",
+	priority = 20,
+})
+
 mcl_potions.register_hp_hudbar_modifier({
 	predicate = function(player)
 		if EF.regeneration[player] then return true end
 	end,
 	icon = "hudbars_icon_regenerate.png",
-	priority = 10,
+	priority = 30,
 })
 
 local function potions_set_hudbar(player)