/// <summary>
/// Locates the transform element in the screen according the layout value.
/// It depends on the way the transform originally was z-located and xy-scaled to act as a GUI element.
/// </summary>
/// <param name='tr'>
/// Transform
/// </param>
/// <param name='guiElem'>
/// Is the GUI element containing the info about size in pixels or as a proportion
/// </param>
/// <param name='offsetInPixels'>
/// Offset measured in pixels.
/// </param>
/// <param name='layout'>
/// Layout. Base screen positions
/// </param>
public static void adjustPos(Transform tr, GUICustomElement guiElem, Vector2 offsetInPixels, EnumScreenLayout layout)
{
Vector3 p = tr.localPosition;
// assume the GUI element has its size as pixels
Vector2 size = guiElem.virtualSize.x != 0 ? guiElem.virtualSize : guiElem.size;
// convert to pixels if GUI element's size is set as a proportion
if (!guiElem.sizeAsPixels)
{
size.x *= Screen.width;
size.y *= Screen.height;
}
switch (layout)
{
case EnumScreenLayout.NONE: {
Vector2 temp = screenToGUI(offsetInPixels.x, offsetInPixels.y);
p.x = temp.x;
p.y = temp.y;
break;
}
case EnumScreenLayout.TOP_LEFT: {
Vector2 temp = screenToGUI(offsetInPixels.x + size.x / 2f, Screen.height - size.y / 2f + offsetInPixels.y);
p.x = temp.x;
p.y = temp.y;
break;
}
case EnumScreenLayout.TOP: {
Vector2 temp = screenToGUI(Screen.width / 2 + offsetInPixels.x, Screen.height - size.y / 2f + offsetInPixels.y);
p.x = temp.x;
p.y = temp.y;
break;
}
case EnumScreenLayout.TOP_RIGHT: {
Vector2 temp = screenToGUI(Screen.width + offsetInPixels.x - size.x / 2f, Screen.height - size.y / 2f + offsetInPixels.y);
p.x = temp.x;
p.y = temp.y;
break;
}
case EnumScreenLayout.CENTER_LEFT: {
Vector2 temp = screenToGUI(offsetInPixels.x + size.x / 2f, Screen.height / 2 + offsetInPixels.y);
p.x = temp.x;
p.y = temp.y;
break;
}
case EnumScreenLayout.CENTER: {
p.x = Screen.width / 2 - size.x / 2 + offsetInPixels.x;
p.y = Screen.height / 2 - size.y / 2 + offsetInPixels.y;
Vector2 temp = screenToGUI(Screen.width / 2 + offsetInPixels.x, Screen.height / 2 + offsetInPixels.y);
p.x = temp.x;
p.y = temp.y;
break;
}
case EnumScreenLayout.CENTER_RIGHT: {
Vector2 temp = screenToGUI(Screen.width + offsetInPixels.x - size.x / 2f, Screen.height / 2 + offsetInPixels.y);
p.x = temp.x;
p.y = temp.y;
break;
}
case EnumScreenLayout.BOTTOM_LEFT: {
Vector2 temp = screenToGUI(offsetInPixels.x + size.x / 2f, size.y / 2f + offsetInPixels.y);
p.x = temp.x;
p.y = temp.y;
break;
}
case EnumScreenLayout.BOTTOM: {
Vector2 temp = screenToGUI(Screen.width / 2 + offsetInPixels.x, size.y / 2f + offsetInPixels.y);
p.x = temp.x;
p.y = temp.y;
break;
}
case EnumScreenLayout.BOTTOM_RIGHT: {
Vector2 temp = screenToGUI(Screen.width + offsetInPixels.x - size.x / 2f, size.y / 2f + offsetInPixels.y);
p.x = temp.x;
p.y = temp.y;
break;
}
default: break;
}
#if UNITY_EDITOR
if (float.IsNegativeInfinity(p.x) || float.IsInfinity(p.x) || float.IsNaN(p.x))
{
p.x = 0f;
}
if (float.IsNegativeInfinity(p.y) || float.IsInfinity(p.y) || float.IsNaN(p.y))
{
p.y = 0f;
}
#endif
tr.localPosition = p;
}
/// <summary>
/// Locates the GUITexture element in the screen according the layout value.
/// It modifies the GUITexture's pixel inset.
/// </summary>
/// <param name='gt'>
/// Gt. Unity'sGUITexture
/// </param>
/// <param name='offset'>
/// Offset
/// </param>
/// <param name='layout'>
/// Layout
/// </param>
public static void adjustPos(GUITexture gt, Vector2 offset, EnumScreenLayout layout)
{
Rect p = gt.pixelInset;
switch (layout)
{
case EnumScreenLayout.TOP_LEFT: {
p.x = offset.x;
p.y = Screen.height - p.height + offset.y;
break;
}
case EnumScreenLayout.TOP: {
p.x = Screen.width / 2 - p.width / 2 + offset.x;
p.y = Screen.height - p.height + offset.y;
break;
}
case EnumScreenLayout.TOP_RIGHT: {
p.x = Screen.width - p.width + offset.x;
p.y = Screen.height - p.height + offset.y;
break;
}
case EnumScreenLayout.CENTER_LEFT: {
p.x = offset.x;
p.y = Screen.height / 2 - p.height / 2 + offset.y;
break;
}
case EnumScreenLayout.CENTER: {
p.x = Screen.width / 2 - p.width / 2 + offset.x;
p.y = Screen.height / 2 - p.height / 2 + offset.y;
break;
}
case EnumScreenLayout.CENTER_RIGHT: {
p.x = Screen.width - p.width + offset.x;
p.y = Screen.height / 2 - p.height / 2 + offset.y;
break;
}
case EnumScreenLayout.BOTTOM_LEFT: {
p.x = offset.x;
p.y = offset.y;
break;
}
case EnumScreenLayout.BOTTOM: {
p.x = Screen.width / 2 - p.width + offset.x;
p.y = offset.y;
break;
}
case EnumScreenLayout.BOTTOM_RIGHT: {
p.x = Screen.width - p.width + offset.x;
p.y = offset.y;
break;
}
default: break;
}
#if UNITY_EDITOR
if (float.IsNegativeInfinity(p.x) || float.IsInfinity(p.x) || float.IsNaN(p.x))
{
p.x = 0f;
}
if (float.IsNegativeInfinity(p.y) || float.IsInfinity(p.y) || float.IsNaN(p.y))
{
p.y = 0f;
}
#endif
gt.pixelInset = p;
}
