feat: add cooldown timer

include/misc/Time.h

@@ -41,21 +41,36 @@ class Timer {
 private:
     std::uint64_t m_Interval;
     std::uint64_t m_InternalTime = 0;
-
-    bool m_Waiting = true;
 public:
     Timer() : m_Interval(0) {}
     Timer(std::uint64_t interval) : m_Interval(interval) {}
 
     bool update(std::uint64_t delta);
 
-    void wait(); // let update return true on the next tick (if it was not used)
-
     void reset();
 
     void setInterval(std::uint64_t newInterval) { m_Interval = newInterval; }
     std::uint64_t getInterval() const { return m_Interval; }
 };
 
+// utililty class to call function at regular period of time with a cooldown (used for towers)
+class CooldownTimer {
+private:
+    std::uint64_t m_Cooldown;
+    std::uint64_t m_CooldownTime;
+public:
+    CooldownTimer() : m_Cooldown(0), m_CooldownTime(0) {}
+    CooldownTimer(std::uint64_t cooldown) : m_Cooldown(0), m_CooldownTime(cooldown) {}
+
+    bool update(std::uint64_t delta);
+
+    void applyCooldown(); 
+
+    void reset();
+
+    void setCooldown(std::uint64_t newCooldown) { m_CooldownTime = newCooldown; }
+    std::uint64_t getCooldown() const { return m_CooldownTime; }
+};
+
 } // namespace utils
 } // namespace td