Merge pull request #15 from andreja6/sound

Added sound and sound effects

AudioPlayer.cpp

@@ -0,0 +1,113 @@
+#include "AudioPlayer.h"
+#include "SDL.h"
+#include "SDL_audio.h"
+#include <stdlib.h>
+#include <malloc.h>
+#include <string.h>
+#define NUM_SOUNDS 10
+static SDL_AudioSpec fmt;
+static bool initiated = false;
+
+AudioPlayer::AudioPlayer(void)
+{
+	
+}
+
+AudioPlayer::~AudioPlayer(void)
+{
+	SDL_CloseAudio();
+}
+
+void AudioPlayer::init()
+{
+	initiated = true;
+	extern void mixaudio(void *unused, Uint8 *stream, int len);
+	fmt.freq = 22050;
+    fmt.format = AUDIO_S16;
+    fmt.channels = 2;
+    fmt.samples = 1024;        /* A good value for games */
+    fmt.callback = mixaudio;
+    fmt.userdata = NULL;
+
+    /* Open the audio device and start playing sound! */
+    if ( SDL_OpenAudio(&fmt, NULL) < 0 ) {
+        fprintf(stderr, "Unable to open audio: %s\n", SDL_GetError());
+        exit(1);
+    }
+    SDL_PauseAudio(0);
+}
+
+static struct sample {
+    Uint8 *data;
+    Uint32 dpos;
+    Uint32 dlen;
+} sounds[NUM_SOUNDS];
+
+void mixaudio(void *unused, Uint8 *stream, int len)
+{
+    int i;
+    Uint32 amount;
+
+    for ( i=0; i<NUM_SOUNDS; ++i ) {
+        amount = (sounds[i].dlen-sounds[i].dpos);
+        if ( amount > (Uint32)len ) {
+            amount = len;
+        }
+        SDL_MixAudio(stream, &sounds[i].data[sounds[i].dpos], amount, SDL_MIX_MAXVOLUME);
+        sounds[i].dpos += amount;
+    }
+}
+
+void AudioPlayer::PlaySound(std::string fileString)
+{
+
+	if(initiated)
+	{
+		char *file = new char[fileString.length() + 1];
+		strcpy(file, fileString.c_str());
+		
+
+		int index;
+		SDL_AudioSpec wave;
+		Uint8 *data;
+		Uint32 dlen;
+		SDL_AudioCVT cvt;
+
+		/* Look for an empty (or finished) sound slot */
+		for ( index=0; index<NUM_SOUNDS; ++index ) {
+			if ( sounds[index].dpos == sounds[index].dlen ) {
+				break;
+			}
+		}
+		if ( index == NUM_SOUNDS )
+			return;
+
+		/* Load the sound file and convert it to 16-bit stereo at 22kHz */
+		if ( SDL_LoadWAV(file, &wave, &data, &dlen) == NULL ) {
+			fprintf(stderr, "Couldn't load %s: %s\n", file, SDL_GetError());
+			return;
+		}
+		SDL_BuildAudioCVT(&cvt, wave.format, wave.channels, wave.freq,
+								AUDIO_S16,   2,             fmt.freq);
+		cvt.buf = (Uint8*)malloc(dlen*cvt.len_mult);
+		memcpy(cvt.buf, data, dlen);
+		cvt.len = dlen;
+		SDL_ConvertAudio(&cvt);
+		SDL_FreeWAV(data);
+
+		/* Put the sound data in the slot (it starts playing immediately) */
+		if ( sounds[index].data ) {
+			free(sounds[index].data);
+		}
+		SDL_LockAudio();
+		sounds[index].data = cvt.buf;
+		sounds[index].dlen = cvt.len_cvt;
+		sounds[index].dpos = 0;
+		SDL_UnlockAudio();
+		delete [] file;
+	}
+	else
+	{
+		OutputDebugString("Audio player not initialized, sound will not play\r\n");
+	}
+}

AudioPlayer.h

@@ -0,0 +1,11 @@
+#include <G3DAll.h>
+#pragma once
+
+class AudioPlayer
+{
+public:
+	AudioPlayer(void);
+	~AudioPlayer(void);
+	static void PlaySound(std::string);
+	static void init();
+};

G3DTest.vcproj

@@ -230,6 +230,10 @@
 			Name="Source Files"
 			Filter="cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
 			>
+			<File
+				RelativePath=".\AudioPlayer.cpp"
+				>
+			</File>
 			<File
 				RelativePath=".\BaseButtonInstance.cpp"
 				>
@@ -283,6 +287,10 @@
 			Name="Header Files"
 			Filter="h;hpp;hxx;hm;inl"
 			>
+			<File
+				RelativePath=".\AudioPlayer.h"
+				>
+			</File>
 			<File
 				RelativePath=".\BaseButtonInstance.h"
 				>

main.cpp

@@ -16,6 +16,7 @@
 #include "PhysicalInstance.h"
 #include "TextButtonInstance.h"
 #include "ImageButtonInstance.h"
+#include "AudioPlayer.h"
 
 
 #if G3D_VER < 61000
@@ -36,6 +37,7 @@ static G3D::RealTime messageTime = 0;
 static G3D::RealTime inputTime = 0;
 static int FPSVal[8] = {10, 20, 30, 60, 120, 240, INT_MAX,1};
 static int index = 2;
+static std::string cameraSound = "";
 static float TIMERVAL = 60.0F;
 static int SCOREVAL = 0;
 static G3D::TextureRef go = NULL;
@@ -248,6 +250,7 @@ public:
 
 void CameraButtonListener::onButton1MouseClick(BaseButtonInstance* button)
 {
+	AudioPlayer::PlaySound(cameraSound);
 	CoordinateFrame frame = usableApp->debugCamera.getCoordinateFrame();
 	if(button->name == "CenterCam")
 		centerCam = true;
@@ -269,6 +272,8 @@ public:
 
 void DeleteListener::onButton1MouseClick(BaseButtonInstance* button)
 {
+	
+	
 	if(selectedInstance != NULL)
 	{
 		for(size_t i = 0; i < instances.size(); i++)
@@ -279,6 +284,9 @@ void DeleteListener::onButton1MouseClick(BaseButtonInstance* button)
 				instances.erase(instances.begin() + i);
 				delete deleting;
 				selectedInstance = NULL;
+				AudioPlayer::PlaySound(GetFileInPath("/content/sounds/pageturn.wav"));
+				
+				
 			}
 		
 		}
@@ -871,11 +879,13 @@ void Demo::onUserInput(UserInput* ui) {
 
 	if(ui->keyPressed(SDL_MOUSE_WHEEL_UP_KEY))
 	{
+		AudioPlayer::PlaySound(cameraSound);
 		CoordinateFrame frame = app->debugCamera.getCoordinateFrame();
 		cameraPos = cameraPos + frame.lookVector()*2;
 	}
 	if(ui->keyPressed(SDL_MOUSE_WHEEL_DOWN_KEY))
 	{
+		AudioPlayer::PlaySound(cameraSound);
 		CoordinateFrame frame = app->debugCamera.getCoordinateFrame();
 		cameraPos = cameraPos - frame.lookVector()*2;
 	}
@@ -1364,6 +1374,7 @@ void App::main() {
 	cursor = Texture::fromFile(GetFileInPath("/content/cursor2.png"));
 	fntdominant = GFont::fromFile(GetFileInPath("/content/font/dominant.fnt"));
 	fntlighttrek = GFont::fromFile(GetFileInPath("/content/font/lighttrek.fnt"));
+	cameraSound = GetFileInPath("/content/sounds/SWITCH3.wav");
     sky = Sky::create(NULL, ExePath() + "/content/sky/");
 	cursorid = cursor->openGLID();
     applet->run();
@@ -1457,7 +1468,8 @@ LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 int main(int argc, char** argv) {
 	//_CrtSetDbgFlag( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
 	//_CrtSetBreakAlloc(1279);
-
+	try{
+	AudioPlayer::init();
     GAppSettings settings;
 	settings.window.resizable = true;
 	//settings.window.fsaaSamples = 8;
@@ -1549,5 +1561,10 @@ int main(int argc, char** argv) {
 	//messageTime = G3D::System::time();
 
 	app.run();
+	}
+	catch(std::exception)
+	{
+		OnError(-1);
+	}
     return 0;
 }