[FEATURE] bullet shooting

src/system/timing.c

@@ -17,3 +17,19 @@ uint8_t timing_get_fps(SceUInt64 dt)
 {
     return (1 / (dt / 1000.0));
 }
+
+void timing_update_timer(timing_timer* timer, SceUInt64 dt)
+{
+    timer->time += dt;
+}
+
+uint8_t timing_check_timer_elapsed(timing_timer* timer)
+{
+    if (timer->time > timer->timeout)
+    {
+        timer->time = 0;
+        timer->elapsed = 1;
+        return 1;
+    }
+    return 0;
+}

src/system/timing.h

@@ -2,6 +2,14 @@
 #define TIMING_H
 
 #include <psp2/kernel/processmgr.h>
+#include <sys/types.h>
+
+typedef struct 
+{
+    timer_t time;
+    SceUInt64 timeout;
+    uint8_t elapsed;
+} timing_timer;
 
 /**
  * @brief gets the delta time in ms. (the duration since this function was last called)
@@ -9,7 +17,8 @@
  * @param sysclock the system kernel clock pointer to use
  * @return SceUInt64 the delta time in ms
  */
-SceUInt64 timing_get_deltatime(SceKernelSysClock *sysclock);
+SceUInt64
+timing_get_deltatime(SceKernelSysClock *sysclock);
 
 /**
  * @brief calculates the fps based on the given delta time
@@ -18,4 +27,20 @@ SceUInt64 timing_get_deltatime(SceKernelSysClock *sysclock);
  * @return uint8_t the fps
  */
 uint8_t timing_get_fps(SceUInt64 dt);
+
+/**
+ * @brief updates a timer with the last frametime
+ * 
+ * @param timer the timer to update
+ * @param dt the deltatime
+ */
+void timing_update_timer(timing_timer* timer, SceUInt64 dt);
+
+/**
+ * @brief checks if the given timer has elapsed or not
+ * 
+ * @param timer the timer to check
+ * @return uint8_t 0 if false, nonzero if true
+ */
+uint8_t timing_check_timer_elapsed(timing_timer* timer);
 #endif