From 6e78a156400742db24b5ce7175459bc484906361 Mon Sep 17 00:00:00 2001
From: structix <amateurdoedel@gmail.com>
Date: Sun, 11 Sep 2016 21:03:08 +0200
Subject: [PATCH] =?UTF-8?q?Accelerometer=20hinzugef=C3=BCgt=20(ungetestet)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 accelerometer.c | 25 +++++++++++++++++++++++++
 accelerometer.h |  2 ++
 makefile        |  2 +-
 3 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 accelerometer.c
 create mode 100644 accelerometer.h

diff --git a/accelerometer.c b/accelerometer.c
new file mode 100644
index 0000000..9f83f04
--- /dev/null
+++ b/accelerometer.c
@@ -0,0 +1,25 @@
+#include "accelerometer.h"
+#include <libgy521.h>
+#include <math.h> //for fabs
+
+void setupAccelerometer(void) {
+    setupgy521();
+}
+
+float getaccelerometerdata(void) {
+    float xyz[] = {getAccelerometerData('x', 1), getAccelerometerData('y', 1), getAccelerometerData('z', 1)};
+    float temp;
+    int i, z;
+    
+    for (i = 0, i < 3; i++) {
+        for (z = 0; z < 3 - i; z++) {
+            if (xyz[z] < xyz[z + 1]) {
+                temp = xyz[z];
+                xyz[z] = xyz[z + 1];
+                xyz[z + 1] = temp;
+            }
+        }
+    }
+    
+    return fabs(xyz[0]); //Absolutwert fuer float
+}
diff --git a/accelerometer.h b/accelerometer.h
new file mode 100644
index 0000000..40aabdc
--- /dev/null
+++ b/accelerometer.h
@@ -0,0 +1,2 @@
+void setupAccelerometer(void);
+float getaccelerometerdata(void); 
diff --git a/makefile b/makefile
index b2c5338..739e0ea 100644
--- a/makefile
+++ b/makefile
@@ -4,7 +4,7 @@ CFLAGS  = -Wall -g -D_REENTRANT -DVERSION=\"$(VERSION)\"
 
 LDFLAGS = -lwiringPi -lpthread
 
-OBJ = main.o player.o
+OBJ = main.o player.o accelerometer.o
 
 pi2ezoplayer: $(OBJ)
 	$(CC) $(CFLAGS) -o pi2ezoplayer $(OBJ) $(LDFLAGS)