/// <summary>
/// Creates the matcher for a background actor with the provided metadata and renderer.
/// Will return null in case matcher is not required based on the actor configuration.
/// </summary>
public static BackgroundMatcher CreateFor(BackgroundMetadata metadata, TransitionalRenderer renderer)
{
if (renderer is TransitionalSpriteRenderer spriteRenderer && metadata.MatchMode != CameraMatchMode.Disable)
{
var cameraManager = Engine.GetService <ICameraManager>();
var matcher = new BackgroundMatcher(cameraManager, spriteRenderer, metadata);
matcher.Start();
return(matcher);
}
return(null);
}
private void PrepareRenderTexture(Vector2 drawDimensions, TransitionalRenderer renderer)
{
var requiredSize = new Vector2Int(Mathf.RoundToInt(drawDimensions.x), Mathf.RoundToInt(drawDimensions.y));
if (CurrentTextureValid())
{
return;
}
if (renderTexture)
{
RenderTexture.ReleaseTemporary(renderTexture);
}
renderTexture = RenderTexture.GetTemporary(requiredSize.x, requiredSize.y);
renderer.MainTexture = renderTexture;
bool CurrentTextureValid() => renderTexture && renderTexture.width == requiredSize.x && renderTexture.height == requiredSize.y;
}
public void DrawTo(TransitionalRenderer renderer, int pixelsPerUnit)
{
if (!meshRenderer.enabled)
{
return;
}
var drawDimensions = (Vector3)renderCanvas.Size * pixelsPerUnit;
var drawPosition = transform.position + (Vector3)renderCanvas.Offset;
var orthoMin = -drawDimensions / 2f + drawPosition * pixelsPerUnit;
var orthoMax = drawDimensions / 2f + drawPosition * pixelsPerUnit;
var orthoMatrix = Matrix4x4.Ortho(orthoMin.x, orthoMax.x, orthoMin.y, orthoMax.y, float.MinValue, float.MaxValue);
var rotationMatrix = Matrix4x4.Rotate(Quaternion.Inverse(renderer.transform.localRotation));
PrepareRenderTexture(drawDimensions, renderer);
PrepareCommandBuffer(orthoMatrix);
Draw(rotationMatrix, pixelsPerUnit);
Graphics.ExecuteCommandBuffer(commandBuffer);
}
