/// <summary>
/// Creates a "selector" -- left/right arrow buttons with the currently-selected option displayed in between.
/// Returns the new selected object based on player input.
/// </summary>
public static int Selector(GUIContent leftArrow, GUIContent rightArrow, GUIContent[] options, int currentOption,
SelectorLayout layout, bool wrapAroundBeginning, bool wrapAroundEnd, bool scaleToScreen,
GUIStyle arrowStyle = null, GUIStyle selectionStyle = null)
{
if (scaleToScreen)
{
layout = new SelectorLayout(layout);
layout.CenterLeftPos = new Vector2(layout.CenterLeftPos.x * Screen.width, layout.CenterLeftPos.y * Screen.height);
layout.SpaceBetweenElements *= Screen.width;
layout.ArrowWidth *= Screen.width;
layout.ArrowHeight *= Screen.height;
layout.SelectedWidth *= Screen.width;
layout.SelectedHeight *= Screen.height;
}
//The button/label areas.
Rect leftArea = new Rect(layout.CenterLeftPos.x,
layout.CenterLeftPos.y - (0.5f * layout.ArrowHeight),
layout.ArrowWidth, layout.ArrowHeight);
Rect centerArea = new Rect(leftArea.xMax + layout.SpaceBetweenElements,
layout.CenterLeftPos.y - (0.5f * layout.SelectedHeight),
layout.SelectedWidth, layout.SelectedHeight);
Rect rightArea = new Rect(centerArea.xMax + layout.SpaceBetweenElements,
leftArea.yMin,
layout.ArrowWidth, layout.ArrowHeight);
//Draw the current option.
if (selectionStyle == null)
{
GUI.Box(centerArea, options[currentOption]);
}
else
{
GUI.Box(centerArea, options[currentOption], selectionStyle);
}
//Left arrow button.
if ((arrowStyle == null && GUI.Button(leftArea, leftArrow)) ||
(arrowStyle != null && GUI.Button(leftArea, leftArrow, arrowStyle)))
{
currentOption -= 1;
if (currentOption < 0)
{
if (wrapAroundBeginning)
{
currentOption += options.Length;
}
else
{
currentOption = 0;
}
}
}
//Right arrow button.
if ((arrowStyle == null && GUI.Button(rightArea, rightArrow)) ||
(arrowStyle != null && GUI.Button(rightArea, rightArrow, arrowStyle)))
{
currentOption += 1;
if (currentOption >= options.Length)
{
if (wrapAroundEnd)
{
currentOption -= options.Length;
}
else
{
currentOption = options.Length - 1;
}
}
}
return(currentOption);
}
public SelectorLayout(SelectorLayout copy)
: this(copy.CenterLeftPos, copy.SpaceBetweenElements, copy.ArrowWidth, copy.ArrowHeight, copy.SelectedWidth, copy.SelectedHeight)
{
}
