fix bela examples

Author: jarmitage

examples/bela/cpp/cpp-osc-arrays/render.cpp

@@ -22,7 +22,7 @@ int writePointer = 0;
 int packetsSent = 0;
 int gAudioFramesPerAnalogFrame = 0;
 
-void on_receive(oscpkt::Message* msg, void* arg) {
+void onReceive(oscpkt::Message* msg, const char* addr, void* arg) {
   if(msg->match("/bela")) {
     auto argReader = msg->match("/bela");
     for (int i=0; i<OUT_CHANNELS * OSC_PACKET_LEN; i++)

examples/bela/cpp/cpp-osc-gui-sliders/render.cpp

@@ -22,19 +22,19 @@ const int remotePort = 7563;
 
 unsigned int gPitchSliderIdx;
 unsigned int gAmplitudeSliderIdx;
-int gPitch = 60;
+float gPitch = 60.0;
 float gAmplitude = 0.1;
 
-void onReceive(oscpkt::Message* msg, void* arg) {
+void onReceive(oscpkt::Message* msg, const char* addr, void* arg) {
 
   if (msg->match("/pitch")) {
 
-    int pitch;
-    msg->match("/pitch").popInt32(pitch).isOkNoMoreArgs();
+    float pitch;
+    msg->match("/pitch").popFloat(pitch).isOkNoMoreArgs();
     if (gPitch != pitch) {
       gPitch = pitch;
       controller.setSliderValue(gPitchSliderIdx, gPitch);
-      printf("Pitch %i\n", gPitch);
+      printf("Pitch %f\n", gPitch);
     }
 
   } else if (msg->match("/amplitude")) {
@@ -75,7 +75,7 @@ bool setup(BelaContext *context, void *userData)
 void render(BelaContext *context, void *userData)
 {
   // Access the sliders specifying the index we obtained when creating then
-  int pitch = (int) controller.getSliderValue(gPitchSliderIdx);
+  float pitch = controller.getSliderValue(gPitchSliderIdx);
   float amplitude = controller.getSliderValue(gAmplitudeSliderIdx);
   if (gPitch != pitch) {
     gPitch = pitch;

examples/bela/cpp/cpp-osc-gui-sliders/server.py

@@ -14,13 +14,13 @@ def main(host="192.168.7.1", port=7563, verbose=False):
     osc = OSC(host, port)
     osc.create_client("bela", host="192.168.7.2", port=7562)
 
-    pitch = { "val": 60, "min": 48, "max": 84, "step": 1 }
+    pitch = { "val": 60.0, "min": 48, "max": 84, "step": 4 }
     amplitude = { "val": 0.1, "min": 0.0, "max": 0.5, "step": 0.01 }
 
     @osc.args("/pitch")
     def _(address, *args):
         print(f"Received pitch", args)
-        pitch['val'] = int(args[0])
+        pitch['val'] = args[0]
 
     @osc.args("/amplitude")
     def _(address, *args):
@@ -34,7 +34,7 @@ def _():
 
         if coin_flip[0]==True:
             step = np.random.randint(-pitch['step'], pitch['step']+1)
-            pitch['val'] = int(constrain(pitch['val'] + step, pitch['min'], pitch['max']))
+            pitch['val'] = constrain(pitch['val'] + step, pitch['min'], pitch['max'])
             osc("bela", "/pitch", pitch['val'])
 
         elif coin_flip[1]==True:

examples/bela/cpp/cpp-osc-resonator/render.cpp

@@ -10,7 +10,7 @@ const int localPort = 7562;
 Resonator res;
 ResonatorOptions options; // will initialise to default
 
-void onReceive(oscpkt::Message* msg, void* arg) {
+void onReceive(oscpkt::Message* msg, const char* addr, void* arg) {
 
   if(msg->match("/resonator")) {
     float freq, gain, decay;