protected virtual void Update()
{
cooldown -= Time.deltaTime;
if (cooldown <= 0.0f)
{
cooldown = DelayPerHeal;
if (destructible == null)
{
destructible = GetComponent <D2dDestructible>();
}
// Make sure the snapshot matches the current destructible
if (snapshot.AlphaWidth == destructible.AlphaWidth && snapshot.AlphaHeight == destructible.AlphaHeight)
{
destructible.BeginAlphaModifications();
{
// Go through all pixels
for (var y = snapshot.AlphaHeight - 1; y >= 0; y--)
{
for (var x = snapshot.AlphaWidth - 1; x >= 0; x--)
{
// Find current and snapshot alpha values
var index = x + y * snapshot.AlphaWidth;
var oldAlpha = destructible.AlphaData[index];
var newAlpha = snapshot.AlphaData[index];
// Are they different?
if (oldAlpha != newAlpha)
{
// Move old alpha toward new alpha
newAlpha = (byte)Mathf.MoveTowards(oldAlpha, newAlpha, HealAmount);
// Write the new value
destructible.WriteAlpha(x, y, newAlpha);
}
}
}
}
destructible.EndAlphaModifications();
}
}
}
