Made a canEntityAttack helper function

This will check all conditions required to determine if an entity can
indeed attack, or not. Also with this mobs will no longer try to attack
when frozen.

projects/Release/LuaScripts/AI.lua

@@ -30,6 +30,14 @@ local canWin = function()
     return (total_damage > enemy_hero_health)
 end
 --]]
+local canEntityAttack = function(entity)
+    local can_attack = CanAttack(entity)
+    local is_exhausted = IsExhausted(entity)
+    local is_frozen = IsFrozen(entity)
+
+    return can_attack and (is_exhausted == false) and (is_frozen == false)
+end
+
 local num_battlefield_minions = function()
     local battlefield_cards = GetCards(OurBattlefield)
     return #battlefield_cards
@@ -39,10 +47,9 @@ local nuke_hero = function()
     local battlefield_cards = GetCards(OurBattlefield)
     for i,card in ipairs(battlefield_cards) do
         local entity = ConvertCardToEntity(card)
-        local can_attack = CanAttack(entity)
-        local is_exhausted = IsExhausted(entity)
+        local can_attack = canEntityAttack(entity)
 
-        if (can_attack and (is_exhausted == false)) then
+        if (can_attack) then
             local enemy_hero_card = GetCard(EnemyHero)
             DoAttack(card, enemy_hero_card)
         end
@@ -71,9 +78,9 @@ local get_our_attackers = function()
     local our_battlefield_cards = GetCards(OurBattlefield)
     for i,card in ipairs(our_battlefield_cards) do
         local entity = ConvertCardToEntity(card)
-        local can_attack = CanAttack(entity)
-        local is_exhausted = IsExhausted(entity)
-        if (can_attack and (is_exhausted == false)) then
+        local can_attack = canEntityAttack(entity)
+
+        if (can_attack) then
             table.insert(our_attackers, card)
         end
     end
@@ -171,6 +178,28 @@ local throw_random_minion = function()
     return false
 end
 
+
+-- Only for non-targeted
+-- TODO: Add a check for these heroes
+-- NOTE: Will require an extension of the Lua API
+--[[
+local use_hero_power = function()
+    local hero_power_card = GetCard(HeroPower)
+    local entity = ConvertCardToEntity(hero_power_card)
+
+    local cost = GetCost(entity)
+    local avaiable_crystals = GetCrystals(OurHero)
+    if (cost <= avaiable_crystals) then
+        __csharp_do_attack(hero_power_card)
+        __critical_pause = true
+        coroutine.yield()
+        __csharp_drop_card(hero_power_card, true)
+        __critical_pause = true
+        coroutine.yield()
+    end
+end
+--]]
+
 -- Do AI, returns nothing, takes nothing
 turn_start_function = function()