/// <summary>
/// Update the fog of war's visibility.
/// </summary>
protected void UpdateBuffer()
{
// Use the texture blend time, thus estimating the time this update will finish
// Doing so helps avoid visible changes in blending caused by the blended result being X milliseconds behind.
float factor = (textureBlendTime > 0f) ? Mathf.Clamp01(blendFactor + elapsed / textureBlendTime) : 1f;
// Clear the buffer's red channel (channel used for current visibility -- it's updated right after)
for (int i = 0, imax = buffer0.Length; i < imax; ++i)
{
buffer0[i] = Color32.Lerp(buffer0[i], buffer1[i], factor);
buffer1[i].r = 0;
}
// For conversion from world coordinates to texture coordinates
float worldToTex = (float)textureSize / chunkSize;
// Update the visibility buffer, one revealer at a time
for (int i = 0; i < MangoFogInstance.revealers.size; ++i)
{
IMangoFogRevealer rev = MangoFogInstance.revealers[i];
if (rev.IsValid())
{
if (rev.GetRevealerType() == RevealerType.Radius)
{
RevealUsingRadius(rev, worldToTex);
}
else
{
RevealUsingLOS(rev, worldToTex);
}
}
}
// Blur the final visibility data
for (int i = 0; i < blurIterations; ++i)
{
BlurVisibility();
}
// Reveal the map based on what's currently visible
RevealMap();
// Merge two buffer to one
MergeBuffer();
//ready to update the texture , multi chunk experimental only
changeStates[chunkID] = 2;
}
protected void UpdateRevealers(int deltaMS)
{
// Add all items scheduled to be added
if (revealersAdded.size > 0)
{
lock (revealersAdded)
{
while (revealersAdded.size > 0)
{
int index = revealersAdded.size - 1;
revealers.Add(revealersAdded.buffer[index]);
revealersAdded.RemoveAt(index);
}
}
}
// Remove all items scheduled for removal
if (revealersRemoved.size > 0)
{
lock (revealersRemoved)
{
while (revealersRemoved.size > 0)
{
int index = revealersRemoved.size - 1;
revealers.Remove(revealersRemoved.buffer[index]);
revealersRemoved.RemoveAt(index);
}
}
}
for (int i = revealers.size - 1; i >= 0; i--)
{
IMangoFogRevealer revealer = revealers[i];
revealer.Update(deltaMS);
if (!revealer.IsValid())
{
revealer.Release();
}
}
}