Diff: RadarDemo/RadarTimer.cpp

Revision:

4:66f13188c26b

Parent:

3:732f7144ec81

--- a/RadarDemo/RadarTimer.cpp	Sat Nov 05 15:36:59 2016 +0000
+++ b/RadarDemo/RadarTimer.cpp	Sat Nov 05 20:24:59 2016 +0000
@@ -1,14 +1,21 @@
+//
+// RadarTimer.cpp - Radar time subsystem simulator.
+//
+
 #include "RadarTimer.h"
 #include "Commons.h"
 
 RadarTimer::RadarTimer()
 {
-
+    // Set 10seconds as default value for scan period;
+    _scanPeriod = 10000;
+    _lastScanTime = 0;
 }
 
 RadarTimer::RadarTimer(uint32_t scanPeriod)
 {
     SetScanPeriod(scanPeriod);
+    _lastScanTime = 0;
 }
 
 
@@ -20,10 +27,12 @@
 void RadarTimer::Start()
 {
 #ifndef _SDL_timer_h
-   start();
+    start();
 #endif
+    _lastScanTime = GetRunningTime();
 }
 
+
 uint32_t RadarTimer::GetRunningTime()
 {
 #ifdef _SDL_timer_h
@@ -36,9 +45,9 @@
 
 void RadarTimer::RegisterScan()
 {
-    // Lock scan time  
+    // Lock scan time
     _runningTime = GetRunningTime();
-    
+
     // Reset scan time after one full turn
     if (_runningTime >= (_lastScanTime + _scanPeriod)) {
         _lastScanTime = _runningTime;
@@ -52,6 +61,6 @@
     if(angle >= (2 * M_PI)) {
         angle -= 2 * M_PI;
     }
-    
+
     return angle;
 }
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