1 files changed, 47 insertions, 0 deletions
diff --git a/servers/audio/effects/audio_effect_panner.cpp b/servers/audio/effects/audio_effect_panner.cpp
new file mode 100644
index 0000000000..e296b0d998
--- /dev/null
+++ b/servers/audio/effects/audio_effect_panner.cpp
@@ -0,0 +1,47 @@
+#include "audio_effect_panner.h"
+
+
+void AudioEffectPannerInstance::process(const AudioFrame *p_src_frames,AudioFrame *p_dst_frames,int p_frame_count) {
+
+
+	float lvol = CLAMP( 1.0 - base->pan, 0, 1);
+	float rvol = CLAMP( 1.0 + base->pan, 0, 1);
+
+	for(int i=0;i<p_frame_count;i++) {
+
+		p_dst_frames[i].l = p_src_frames[i].l * lvol + p_src_frames[i].r * (1.0 - rvol);
+		p_dst_frames[i].r = p_src_frames[i].r * rvol + p_src_frames[i].l * (1.0 - lvol);
+
+	}
+
+}
+
+
+Ref<AudioEffectInstance> AudioEffectPanner::instance() {
+	Ref<AudioEffectPannerInstance> ins;
+	ins.instance();
+	ins->base=Ref<AudioEffectPanner>(this);
+	return ins;
+}
+
+void AudioEffectPanner::set_pan(float p_cpanume) {
+	pan=p_cpanume;
+}
+
+float AudioEffectPanner::get_pan() const {
+
+	return pan;
+}
+
+void AudioEffectPanner::_bind_methods() {
+
+	ClassDB::bind_method(_MD("set_pan","cpanume"),&AudioEffectPanner::set_pan);
+	ClassDB::bind_method(_MD("get_pan"),&AudioEffectPanner::get_pan);
+
+	ADD_PROPERTY(PropertyInfo(Variant::REAL,"pan",PROPERTY_HINT_RANGE,"-1,1,0.01"),_SCS("set_pan"),_SCS("get_pan"));
+}
+
+AudioEffectPanner::AudioEffectPanner()
+{
+	pan=0;
+}