1 files changed, 72 insertions, 0 deletions
diff --git a/Runtime/Audio/AudioEchoFilter.cpp b/Runtime/Audio/AudioEchoFilter.cpp
new file mode 100644
index 0000000..875ba7b
--- /dev/null
+++ b/Runtime/Audio/AudioEchoFilter.cpp
@@ -0,0 +1,72 @@
+#include "UnityPrefix.h"
+
+#if ENABLE_AUDIO_FMOD
+
+#include "AudioEchoFilter.h"
+#include "Runtime/Utilities/Utility.h"
+
+
+AudioEchoFilter::AudioEchoFilter (MemLabelId label, ObjectCreationMode mode) :
+Super(label, mode),
+m_Delay(500),
+m_DecayRatio(0.5f),
+m_DryMix(1.0f),
+m_WetMix(1.0f)
+{
+	m_Type = FMOD_DSP_TYPE_ECHO;
+}
+
+AudioEchoFilter::~AudioEchoFilter()
+{}
+
+void AudioEchoFilter::AddToManager()
+{
+	Super::AddToManager();
+}
+
+void AudioEchoFilter::Reset()
+{
+	Super::Reset();
+	
+	m_Delay = 500;
+	m_DecayRatio = 0.5f;
+	m_DryMix = 1.0f;
+	m_WetMix = 1.0f;
+}
+
+void AudioEchoFilter::CheckConsistency()
+{
+	Super::CheckConsistency();
+	m_Delay = clamp<int>(m_Delay,10,5000);
+	m_DecayRatio = clamp (m_DecayRatio,0.0f,1.0f);
+	m_DryMix = clamp(m_DryMix,0.0f,1.0f);
+	m_WetMix = clamp(m_WetMix,0.0f,1.0f);
+}
+
+void AudioEchoFilter::Update()
+{
+	if (m_DSP)
+	{
+		m_DSP->setParameter(FMOD_DSP_ECHO_DELAY, m_Delay);
+		m_DSP->setParameter(FMOD_DSP_ECHO_DECAYRATIO, m_DecayRatio);
+		m_DSP->setParameter(FMOD_DSP_ECHO_DRYMIX, m_DryMix);
+		m_DSP->setParameter(FMOD_DSP_ECHO_WETMIX, m_WetMix);					
+	}
+}
+
+
+template<class TransferFunc>
+void AudioEchoFilter::Transfer (TransferFunc& transfer)
+{
+	Super::Transfer (transfer);
+	TRANSFER(m_Delay);
+	TRANSFER(m_DecayRatio);
+	TRANSFER(m_WetMix);
+	TRANSFER(m_DryMix);
+}
+
+
+IMPLEMENT_CLASS (AudioEchoFilter)
+IMPLEMENT_OBJECT_SERIALIZE (AudioEchoFilter)
+
+#endif //ENABLE_AUDIO