1 files changed, 90 insertions, 0 deletions
diff --git a/System.h b/System.h
new file mode 100644
index 0000000..ec86a2b
--- /dev/null
+++ b/System.h
@@ -0,0 +1,90 @@
+#ifndef __SYSTEM_HEADER__
+#define __SYSTEM_HEADER__
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/* **************************************
+ * 	Includes							*
+ * **************************************/
+
+#include "Global_Inc.h"
+#include "GameStructures.h"
+
+/* **************************************
+ * 	Defines								*
+ * **************************************/
+
+#define TIMEBASE_1_SECOND	1
+#define TIMEBASE_1_MINUTE	TIMEBASE_1_SECOND * 60
+
+/* **************************************
+ * 	Structs and enums					*
+ * **************************************/
+
+typedef struct t_Timer
+{
+	uint32_t time;
+	uint32_t orig_time;
+	bool repeat_flag;
+	bool busy;
+	void (*Timeout_Callback)(void);
+}TYPE_TIMER;
+
+/* **************************************
+ * 	Global Prototypes					*
+ * **************************************/
+
+// Calls init routines
+void SystemInit(void);
+// Calls srand() using current global_timer value as seed
+void SystemSetRandSeed(void);
+// Tells whether srand() has been called using a pseudo-random value
+bool SystemIsRandSeedSet(void);
+// Stops program flow during X cycles
+void SystemWaitCycles(uint32_t cycles);
+// To be called from GfxDrawScene after each cycle
+void SystemRunTimers(void);
+// 1 cycle-length flag with a frequency of 1 Hz
+bool System1SecondTick(void);
+// 1 cycle-length flag with a frequency of 10 Hz
+bool System100msTick(void);
+// Returns random value between given minimum and maximum values
+uint32_t SystemRand(uint32_t min, uint32_t max);
+// Increases global timer by 1 step
+void SystemIncreaseGlobalTimer(void);
+// (Experimental)
+uint64_t SystemGetGlobalTimer(void);
+// Returns whether critical section of code is being entered
+bool SystemIsBusy(void);
+// Returns whether indicated value is contained inside buffer
+bool SystemContains_u8(uint8_t value, uint8_t * buffer, size_t sz);
+// Overload for uint16_t
+bool SystemContains_u16(uint16_t value, uint16_t * buffer, size_t sz);
+// Creates a timer instance wiht a determined value and associates it to a callback
+// Once time expires, callback is automatically called right after GfxDrawScene().
+TYPE_TIMER * SystemCreateTimer(uint32_t seconds, bool rf, void (*timer_callback)(void) );
+// Reportedly, sets all timer data to zero.
+void SystemResetTimers(void);
+// To be called every cycle (i.e.: inside GfxDrawScene() ).
+void SystemUserTimersHandler(void);
+// Sets timer remaining time to initial value.
+void SystemTimerRestart(TYPE_TIMER * timer);
+// Flushes a timer pointed to by timer.
+void SystemTimerRemove(TYPE_TIMER * timer);
+// Compares two arrays of unsigned short type.
+bool SystemArrayCompare(unsigned short * arr1, unsigned short * arr2, size_t sz);
+// Checks collision of two objects
+bool SystemCollisionCheck(TYPE_COLLISION_BLOCK c1, TYPE_COLLISION_BLOCK c2);
+
+/* **************************************
+ * 	Global Variables					*	
+ * **************************************/
+ 
+#ifdef __cplusplus
+}
+#endif
+
+#endif //__SYSTEM_HEADER__