Diff: sound.cpp

Revision:

4:d61f6d186db0

Parent:

1:2967eac08981

Child:

5:614e3ac042df

--- a/sound.cpp	Wed Feb 21 09:25:48 2018 +0000
+++ b/sound.cpp	Wed Mar 07 10:57:16 2018 +0000
@@ -3,20 +3,39 @@
 
 PwmOut spkr(p26);
 
-void _Initialize(void) {
+static void _Initialize(void) {
     spkr=0.0;
 }
 
-void _Process(void) {
-    for (float i = 2000.0; i < 10000.0; i += 100) {
-        spkr.period(1.0 / i);
-        spkr = 0.5;
-        wait(0.1);
+static void _Finalize(void) {
+    _Initialize();
+}
+
+static float _SoundRange = 2000.0;
+
+static void _ProcessInitialize(void) {
+    _SoundRange = 2000.0;
+}
+
+static bool _ProcessIsContinue(void) {
+    return _SoundRange < 10000.0;
+}
+
+static void _ProcessRunning(void) {
+    spkr.period(1.0 / _SoundRange);
+    spkr = 0.5;
+    wait(0.1);
+    
+    _SoundRange += 100;
+}
+
+static void _Process(void) {
+    _ProcessInitialize();
+    while ( _ProcessIsContinue() ) {
+        _ProcessRunning();
     }
 }
 
-void _Finalize(void) {
-    _Initialize();
-}
-
-COMMAND_DEFINE Command_sound = {"sound", 0x01, _Initialize, _Finalize, _Process};
\ No newline at end of file
+COMMAND_DEFINE Command_sound = {"sound", 0x01, _Initialize, _Finalize, _Process,
+    _ProcessInitialize, _ProcessIsContinue, _ProcessRunning
+};
\ No newline at end of file