private bool IsPointInsideControlBounds(float2 worldPoint, Entity control)
{
var toWorldMatrix = TransformHelpers.ComputeWorldMatrix(this, control);
var matrixInverted = math.inverse(toWorldMatrix);
var bounds = GetControlBounds(control);
var worldPointInverted = math.mul(matrixInverted, new float4(worldPoint.x, worldPoint.y, 0, 1));
return(bounds.Contains(worldPointInverted.xy));
}
private void AlignCanvasWithCamera(UICanvas canvas, ref RectTransform rectTransform,
ref Rotation localRotation)
{
// I can't use LocalToWorld here, cos it's one frame behind. I need a up-to-date world matrix.
var toWorldMatrix = TransformHelpers.ComputeWorldMatrix(this, canvas.camera);
var cameraWorldPos = toWorldMatrix[3].xy;
// We are assuming here that uicanvas is always a root, that's why we can assign camera's world position
// to uicanvas' local position.
rectTransform.anchoredPosition = cameraWorldPos;
localRotation.Value = new quaternion(toWorldMatrix);
}