98 lines
2.9 KiB
C
98 lines
2.9 KiB
C
#ifndef __SYSTEM_HEADER__
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#define __SYSTEM_HEADER__
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/* **************************************
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* Includes *
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* **************************************/
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#include "Global_Inc.h"
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/* **************************************
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* Defines *
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* **************************************/
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#define TIMEBASE_1_SECOND 1
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#define TIMEBASE_1_MINUTE TIMEBASE_1_SECOND * 60
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/* **************************************
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* Structs and enums *
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* **************************************/
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typedef struct t_Timer
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{
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uint32_t time;
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uint32_t orig_time;
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bool repeat_flag;
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bool busy;
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void (*Timeout_Callback)(void);
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}TYPE_TIMER;
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typedef struct t_CollisionBlock
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{
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uint16_t x;
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uint16_t y;
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uint8_t w;
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uint8_t h;
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}TYPE_COLLISION_BLOCK;
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/* **************************************
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* Global Prototypes *
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* **************************************/
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// Calls init routines
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void SystemInit(void);
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// Calls srand() using current global_timer value as seed
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void SystemSetRandSeed(void);
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// Tells whether srand() has been called using a pseudo-random value
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bool SystemIsRandSeedSet(void);
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// Stops program flow during X cycles
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void SystemWaitCycles(uint32_t cycles);
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// To be called from GfxDrawScene after each cycle
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void SystemRunTimers(void);
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// 1 cycle-length flag with a frequency of 1 Hz
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bool System1SecondTick(void);
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// 1 cycle-length flag with a frequency of 10 Hz
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bool System100msTick(void);
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// Returns random value between given minimum and maximum values
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uint32_t SystemRand(uint32_t min, uint32_t max);
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// Increases global timer by 1 step
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void SystemIncreaseGlobalTimer(void);
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// (Experimental)
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uint64_t SystemGetGlobalTimer(void);
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// Returns whether critical section of code is being entered
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bool SystemIsBusy(void);
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// Returns whether indicated value is contained inside buffer
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bool SystemContains_u8(uint8_t value, uint8_t* buffer, size_t sz);
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// Overload for uint16_t
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bool SystemContains_u16(uint16_t value, uint16_t * buffer, size_t sz);
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// Creates a timer instance wiht a determined value and associates it to a callback
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// Once time expires, callback is automatically called right after GfxDrawScene().
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TYPE_TIMER * SystemCreateTimer(uint32_t seconds, bool rf, void (*timer_callback)(void) );
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// Reportedly, sets all timer data to zero.
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void SystemResetTimers(void);
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// To be called every cycle (i.e.: inside GfxDrawScene() ).
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void SystemUserTimersHandler(void);
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// Sets timer remaining time to initial value.
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void SystemTimerRestart(TYPE_TIMER * timer);
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// Flushes a timer pointed to by timer.
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void SystemTimerRemove(TYPE_TIMER * timer);
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// Compares two arrays of unsigned short type.
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bool SystemArrayCompare(unsigned short * arr1, unsigned short * arr2, size_t sz);
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// Checks collision of two objects
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bool SystemCollisionCheck(TYPE_COLLISION_BLOCK c1, TYPE_COLLISION_BLOCK c2);
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/* **************************************
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* Global Variables *
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* **************************************/
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#ifdef __cplusplus
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}
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#endif
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#endif //__SYSTEM_HEADER__
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