Stun.hpp

00001 #ifndef _Stun
00002 #define _Stun
00003 
00004 #include "mbed.h"
00005 
00006 class Stun {
00007 private:
00008     
00009     // Tag status and timing
00010     bool     m_is_stunned;     //< Whether currently stunned or not
00011     // Game options
00012     unsigned m_stun_time;     //< Total duration of current stun
00013     Timer    m_stun_timer;     //< Current amount of stun
00014     Timeout  m_stun_timeout;   //< Triggers when the stun is over
00015     Ticker   m_stun_ticker;    //< Ticks for the duration of the stun
00016     
00017     // Tag LED
00018     DigitalOut m_stun_led;
00019     
00020 public:
00021     inline Stun(PinName stun_led)
00022     : m_is_stunned(false), m_stun_time(0), m_stun_led(stun_led)
00023     {
00024     }
00025     
00026     /// Get the stun status
00027     inline bool stunned() { return m_is_stunned; }
00028     
00029     /// Get the stun time remaining
00030     inline int stunleft()
00031     {
00032         if (!m_is_stunned) return 0;
00033         return m_stun_time - m_stun_timer.read();
00034     }
00035 
00036     /* Actions */
00037     inline void stun(unsigned duration)
00038     {
00039         m_is_stunned = true;
00040         m_stun_time = duration;
00041         m_stun_timeout.attach(this, &Stun::stun_expire, m_stun_time);
00042         m_stun_ticker.attach(this, &Stun::stun_tick, 1);
00043         m_stun_timer.start();
00044         m_stun_led = 1;
00045     }
00046 
00047 private:
00048     inline void stun_tick()
00049     {
00050     
00051     }
00052 
00053     inline void stun_expire()
00054     {
00055         m_is_stunned = false;
00056         m_stun_ticker.detach();
00057         m_stun_timer.stop();
00058         m_stun_timer.reset();
00059         m_stun_led = 0;
00060         m_stun_time = 0;
00061         
00062     }
00063 };
00064 
00065 
00066 #endif