AudioUtility = class("AudioUtility")

function AudioUtility.GetOneShotAudioSource()
	local resPath = "Public/Audio/AudioOneShot"
	local source = nil
	local go = GameObjPool.Instance:GetEx(resPath, "POOL_AUDIO", nil, true)
	if nil ~= go then
		source = go:GetComponent(AudioSource)
	end
	if nil == source then
		GameObject.Destroy(go)
		local prefab = Game.AssetManager:LoadByType(resPath, AudioSource)
		if nil == prefab then
			return nil
		end
		source = AudioSource.Instantiate(prefab)
	end
	return source
end

local volume = 1
local mute = 0

function AudioUtility.SetVolume(v)
	volume = v
	if 0 < mute then
		return
	end
	AudioHelper.volume = v
end

function AudioUtility.GetVolume()
	return volume
end

function AudioUtility.Mute(on)
	if on then
		mute = mute+1
		if 1 == mute then
			AudioHelper.volume = 0
		end
	else
		mute = mute-1
		if 0 == mute then
			AudioHelper.volume = volume
		end
	end
end

function AudioUtility.PlayOneShot2D_Clip(clip)
	Game.Object_AudioSource2D:PlayOneShot(clip, volume)
end

function AudioUtility.PlayOneShot2D_Path(path)
	local clip = Game.AssetManager:LoadByType(path, AudioClip)
	if nil == clip then
		return
	end
	AudioUtility.PlayOneShot2D_Clip(clip)
end

function AudioUtility.PlayOneShot2DSingle_Clip(clip)
	AudioUtility.PlayOn_Clip(clip, Game.Object_AudioSource2D)
end

function AudioUtility.PlayOneShot2DSingle_Path(path)
	local clip = Game.AssetManager:LoadByType(path, AudioClip)
	if nil == clip then
		return
	end
	AudioUtility.PlayOneShot2DSingle_Clip(clip)
end

function AudioUtility.PlayOneShotAt_Clip(clip, p)
	-- AudioSource.PlayClipAtPoint(clip, p, volume)
	if BackwardCompatibilityUtil.CompatibilityMode(BackwardCompatibilityUtil.V6) then
		local source = AudioUtility.GetOneShotAudioSource()
		if nil == source then
			return nil
		end
		source.transform.position = p
		source.volume = volume
		source.clip = clip
		source:Play ()
		source.loop = false
	else
		AudioHelper.PlayOneShotAt(clip, p)
	end
end

function AudioUtility.PlayOneShotAt_Path(path, p)
	local clip = Game.AssetManager:LoadByType(path, AudioClip)
	if nil == clip then
		return
	end
	AudioUtility.PlayOneShotAt_Clip(clip, p)
end

function AudioUtility.PlayOneShotOn_Clip(clip, audioSource)
	audioSource:PlayOneShot(clip, volume)
end

function AudioUtility.PlayOneShotOn_Path(path, audioSource)
	local clip = Game.AssetManager:LoadByType(path, AudioClip)
	if nil == clip then
		return
	end
	AudioUtility.PlayOneShotOn_Clip(clip, audioSource)
end

function AudioUtility.PlayOn_Clip(clip, audioSource)
	audioSource.volume = volume
	audioSource.clip = clip
	audioSource:Play()
end

function AudioUtility.PlayOn_Path(path, audioSource)
	local clip = Game.AssetManager:LoadByType(path, AudioClip)
	if nil == clip then
		return
	end
	AudioUtility.PlayOn_Clip(clip, audioSource)
end