private IEnumerator ShakeCor(CameraShakeData _shakeData)
{
// Create keyframe arrays.
var shakeKeysX = new Keyframe[_shakeData.Points + 2];
var shakeKeysY = new Keyframe[_shakeData.Points + 2];
var shakeKeysZ = new Keyframe[_shakeData.Points + 2];
var keyDelay = _shakeData.Duration / (_shakeData.Points + 1);
// Zero out first and last keyframes.
shakeKeysX[0] = new Keyframe(0.0f, 0.0f);
shakeKeysY[0] = new Keyframe(0.0f, 0.0f);
shakeKeysZ[0] = new Keyframe(0.0f, 0.0f);
shakeKeysX[_shakeData.Points + 1] = new Keyframe((_shakeData.Points + 1) * keyDelay, 0.0f);
shakeKeysY[_shakeData.Points + 1] = new Keyframe((_shakeData.Points + 1) * keyDelay, 0.0f);
shakeKeysZ[_shakeData.Points + 1] = new Keyframe((_shakeData.Points + 1) * keyDelay, 0.0f);
// Cache strength because we're going to modify it.
var strength = _shakeData.Strength;
// Generate middle keyframes.
for (int i = 1; i < _shakeData.Points; i++)
{
shakeKeysX[i] = new Keyframe(
i * keyDelay,
UnityEngine.Random.Range(-_shakeData.Strength, _shakeData.Strength)
);
shakeKeysY[i] = new Keyframe(
i * keyDelay,
UnityEngine.Random.Range(-_shakeData.Strength, _shakeData.Strength)
);
shakeKeysZ[i] = new Keyframe(
i * keyDelay,
UnityEngine.Random.Range(-_shakeData.Strength, _shakeData.Strength)
);
// Decrease strength each frame by our decreaseFactor.
strength = Mathf.Clamp(strength - _shakeData.DecreaseFactor, 0.0f, _shakeData.Strength);
}
// Create animation curves using the keyframes we generated.
var curveX = new AnimationCurve(shakeKeysX);
var curveY = new AnimationCurve(shakeKeysY);
var curveZ = new AnimationCurve(shakeKeysZ);
// Animate shakeTransform using the generated animation curves.
var time = 0.0f;
while (time < _shakeData.Duration)
{
_shakeTransform.localPosition = new Vector3(
curveX.Evaluate(time),
curveY.Evaluate(time),
curveZ.Evaluate(time)
);
time += Time.deltaTime;
yield return(null);
}
// Reset shakeTransform back to resting position.
_shakeTransform.localPosition = Vector3.zero;
}
public void Shake(CameraShakeData shakeData)
{
_shakeCor?.Stop();
_shakeCor = CoroutineRunner.StartManagedCoroutine(ShakeCor(shakeData));
}