AudioSource* AudioSource::clone(NodeCloneContext &context) const
{
GP_ASSERT(_buffer);
ALuint alSource = 0;
AL_CHECK( alGenSources(1, &alSource) );
if (AL_LAST_ERROR())
{
GP_ERROR("Error generating audio source.");
return NULL;
}
AudioSource* audioClone = new AudioSource(_buffer, alSource);
_buffer->addRef();
audioClone->setLooped(isLooped());
audioClone->setGain(getGain());
audioClone->setPitch(getPitch());
audioClone->setVelocity(getVelocity());
if (Node* node = getNode())
{
Node* clonedNode = context.findClonedNode(node);
if (clonedNode)
{
audioClone->setNode(clonedNode);
}
}
return audioClone;
}
int lua_AudioSource_setGain(lua_State* state)
{
// Get the number of parameters.
int paramCount = lua_gettop(state);
// Attempt to match the parameters to a valid binding.
switch (paramCount)
{
case 2:
{
if ((lua_type(state, 1) == LUA_TUSERDATA) &&
lua_type(state, 2) == LUA_TNUMBER)
{
// Get parameter 1 off the stack.
float param1 = (float)luaL_checknumber(state, 2);
AudioSource* instance = getInstance(state);
instance->setGain(param1);
return 0;
}
lua_pushstring(state, "lua_AudioSource_setGain - Failed to match the given parameters to a valid function signature.");
lua_error(state);
break;
}
default:
{
lua_pushstring(state, "Invalid number of parameters (expected 2).");
lua_error(state);
break;
}
}
return 0;
}
AudioSource* AudioSource::create(Properties* properties)
{
// Check if the properties is valid and has a valid namespace.
assert(properties);
if (!properties || !(strcmp(properties->getNamespace(), "audio") == 0))
{
WARN("Failed to load audio source from properties object: must be non-null object and have namespace equal to \'audio\'.");
return NULL;
}
const char* path = properties->getString("path");
if (path == NULL)
{
WARN("Audio file failed to load; the file path was not specified.");
return NULL;
}
// Create the audio source.
AudioSource* audio = AudioSource::create(path);
if (audio == NULL)
{
WARN_VARG("Audio file '%s' failed to load properly.", path);
return NULL;
}
// Set any properties that the user specified in the .audio file.
if (properties->getString("looped") != NULL)
{
audio->setLooped(properties->getBool("looped"));
}
if (properties->getString("gain") != NULL)
{
audio->setGain(properties->getFloat("gain"));
}
if (properties->getString("pitch") != NULL)
{
audio->setPitch(properties->getFloat("pitch"));
}
Vector3 v;
if (properties->getVector3("velocity", &v))
{
audio->setVelocity(v);
}
return audio;
}
AudioSource* AudioSource::create(Properties* properties)
{
// Check if the properties is valid and has a valid namespace.
GP_ASSERT(properties);
if (!properties || !(strcmp(properties->getNamespace(), "audio") == 0))
{
GP_ERROR("Failed to load audio source from properties object: must be non-null object and have namespace equal to 'audio'.");
return NULL;
}
std::string path;
if (!properties->getPath("path", &path))
{
GP_ERROR("Audio file failed to load; the file path was not specified.");
return NULL;
}
// Create the audio source.
AudioSource* audio = AudioSource::create(path.c_str());
if (audio == NULL)
{
GP_ERROR("Audio file '%s' failed to load properly.", path.c_str());
return NULL;
}
// Set any properties that the user specified in the .audio file.
if (properties->exists("looped"))
{
audio->setLooped(properties->getBool("looped"));
}
if (properties->exists("gain"))
{
audio->setGain(properties->getFloat("gain"));
}
if (properties->exists("pitch"))
{
audio->setPitch(properties->getFloat("pitch"));
}
Vector3 v;
if (properties->getVector3("velocity", &v))
{
audio->setVelocity(v);
}
return audio;
}
