Intitial commit

player.c

@@ -0,0 +1,103 @@
+#include <wiringPi.h>
+#include <softTone.h>
+#include "player.h"
+#include "pitches.h"
+
+#define PIN 0 //Realer pin 11
+
+const unsigned int introlength = 25;
+
+
+int intro[] = {
+  //intro
+  NOTE_DS5,
+  NOTE_E5,
+  NOTE_FS5,
+  NOTE_B5,
+  NOTE_DS5,
+  NOTE_E5,
+  NOTE_FS5,
+  NOTE_B5,
+  NOTE_CS6,
+  NOTE_DS6,
+  NOTE_CS6,
+  NOTE_AS5,
+  NOTE_B5,
+  NOTE_FS5,
+  NOTE_DS5,
+  NOTE_E5,
+  NOTE_FS5,
+  NOTE_B5,
+  NOTE_CS6,
+  NOTE_AS5,
+  NOTE_B5,
+  NOTE_CS6,
+  NOTE_E6,
+  NOTE_DS6,
+  NOTE_E6,
+  NOTE_B5, 
+  
+  };
+
+// Noten Dauern: 4 --> Viertel Note, 8 --> Achtel Note usw.
+int noteDurations[] = {
+  16,
+  16,
+  8,
+  8,
+  16,
+  16,
+  16,
+  16,
+  16,
+  16,
+  16,
+  16,
+  8, //13
+  8,
+  16,
+  16,
+  8,
+  8,
+  16,
+  16,
+  16,
+  16,
+  16,
+  16,
+  16,
+  16 //25 intro
+  };
+
+
+
+int setupSoftTone(void) {
+    int returncode = 0;
+    returncode += wiringPiSetup(); //Braucht root Rechte
+    returncode += softToneCreate(PIN);
+    return returncode; // >0 --> error
+}
+
+void playIntro(void) {
+    int nDuration, pauseBetweenNotes, thisNote;
+    for (thisNote = 0; thisNote < introlength; thisNote++) {
+        /**
+        * Um die Zeit der Note zu berechnen muss eine Sekunde durch 
+        * die Laenge der Note geteilt werden.
+        */
+        nDuration = 1000 / noteDurations[thisNote];
+        softToneWrite(PIN, intro[thisNote]);
+        delay(nDuration);
+        softToneWrite(PIN, 0);
+        /**
+        * Um die Noten voneinander zu unterscheiden,
+        * sollte eine Pause dazwischen sein.
+        * Diese wird später mit dem Beschleunigungssensor
+        * gesteuert. Vorerst sind es aber 30%
+        */
+        pauseBetweenNotes = nDuration * 1.30;
+        delay(pauseBetweenNotes);
+        // Sicherheitshalber Ton ausschalten
+        softToneWrite(PIN, 0);
+  }
+}