/// The minimal preparation for use. If these are not set ShowChildLayer() can't work.
public void Initialize(ConstellationMenuRoot root, AssetTree.Node asset, float scale)
{
menuRoot = root;
menuRoot.MarkGraphDirty();
menuNode = asset;
menuScale = scale;
menuOrientation = transform.rotation;
menuCenter = transform.position;
startPosition = transform.position;
savedCameraPosition = Camera.main.transform.position;
savedCameraRotation = Camera.main.transform.rotation;
state = IconState.Shown;
}
/// Creates and shows a layer of icons below this one.
/// Returns true if a fade needs to occur.
public static bool ShowMenu(ConstellationMenuRoot root, AssetTree.Node treeNode, ConstellationMenuIcon parent,
Quaternion orientation, float scale,
IconState initialState = IconState.Shown)
{
// Determine how many children are in the sub-menu
List <AssetTree.Node> childItems = treeNode.children;
// If this is the end of a menu, invoke the action and return early
if (childItems.Count == 0)
{
root.MakeSelection(parent.menuItem);
root.CloseAll();
return(false);
}
if (parent.childMenus.Count == childItems.Count)
{
// children already exist. just fade them in.
bool stateChanged = false;
foreach (ConstellationMenuIcon child in parent.childMenus)
{
if (child.StartFade(initialState))
{
stateChanged = true;
}
// Close any children.
child.FadeChildren(IconState.Closed);
}
return(stateChanged);
}
List <Vector3> childPositions;
float radius;
if (parent.parentMenu != null)
{
radius = (parent.menuCenter - parent.startPosition).magnitude + ITEM_SPACING;
childPositions = ArrangeInCircle(childItems.Count, radius,
parent.angleToRoot - Mathf.PI * .5f,
parent.angleToRoot + Mathf.PI * .5f,
ITEM_SPACING);
}
else
{
// Radius needs to expand when there are more icons
radius = ITEM_SPACING * Mathf.Max(childItems.Count, MIN_ITEM_SPACE) / (2.0f * Mathf.PI);
// add one unused position to item positions
childPositions = ArrangeInCircle(childItems.Count + 1, radius);
}
for (int i = 0; i < childItems.Count; ++i)
{
Vector3 posOffset = childPositions[i];
ConstellationMenuIcon childMenu = (ConstellationMenuIcon)Instantiate(root.menuIconPrefab, root.transform);
childMenu.transform.position = parent.menuCenter + (orientation * posOffset);
childMenu.transform.rotation = orientation;
childMenu.transform.localScale = Vector3.one * scale;
childMenu.Initialize(root, parent, childItems[i], parent.menuCenter, scale, initialState);
childMenu.angleToRoot = Mathf.Atan2(posOffset[1], posOffset[0]);
}
return(true);
}
/// Called to make this icon visible and interactable
public void Initialize(ConstellationMenuRoot root, ConstellationMenuIcon _parentMenu, AssetTree.Node node,
Vector3 _menuCenter, float scale, IconState initialState)
{
parentMenu = _parentMenu;
startPosition = transform.position;
startScale = transform.localScale;
menuRoot = root;
menuNode = node;
menuCenter = _menuCenter;
savedCameraPosition = _parentMenu.savedCameraPosition;
savedCameraRotation = _parentMenu.savedCameraRotation;
menuOrientation = transform.rotation;
// Icons are oriented up in world space.
Vector3 iconToCamera = savedCameraPosition - transform.position;
Quaternion rotationToCamera = Quaternion.FromToRotation(-transform.forward, iconToCamera.normalized);
transform.localRotation = rotationToCamera * transform.localRotation;
menuScale = scale;
background = null;
state = IconState.Closed;
if (node != null)
{
// Set foreground icon
menuItem = (ConstellationMenuItem)node.value;
spriteRenderer.sprite = menuItem.icon;
gameObject.name = menuItem.name;
// Set background icon
background = new GameObject(name + " Item Background");
background.transform.parent = transform.parent;
background.transform.localPosition = transform.localPosition + transform.forward * BACKGROUND_ICON_ZOFFSET;
background.transform.localRotation = transform.localRotation;
background.transform.localScale = transform.localScale;
backgroundSpriteRenderer = background.AddComponent <SpriteRenderer>();
backgroundSpriteRenderer.sprite = menuRoot.iconBackground;
if (menuNode.children.Count != 0 &&
decorationLabelPrefab != null &&
menuRoot.expandableIconDecoration)
{
decorationLabel = Instantiate(decorationLabelPrefab, background.transform);
decorationLabelRenderer = decorationLabel.GetComponent <SpriteRenderer>();
decorationLabelRenderer.sprite = menuRoot.expandableIconDecoration;
decorationLabel.SetActive(false);
}
menuRoot.MarkGraphDirty();
float tooltipOffset;
if (menuItem.tooltipSprite)
{
tooltip = new GameObject(name + " Tooltip Sprite");
SpriteRenderer tooltipSpriteRenderer = tooltip.AddComponent <SpriteRenderer>();
tooltipSpriteRenderer.sprite = menuItem.tooltipSprite;
tooltipRenderer = tooltipSpriteRenderer;
tooltip.transform.localScale *= TOOLTIP_SPRITE_SCALE;
tooltipOffset = TOOLTIP_SPRITE_OFFSET;
}
else
{
tooltip = Instantiate(tooltipPrefab);
tooltip.name = name + " Tooltip Text";
tooltip.GetComponent <TextMesh>().text = menuItem.toolTip.Replace('\\', '\n');
tooltipRenderer = tooltip.GetComponent <MeshRenderer>();
tooltip.transform.localScale = Vector3.one * TOOLTIP_TEXT_SCALE;
tooltipOffset = TOOLTIP_TEXT_OFFSET;
}
tooltip.transform.SetParent(transform, false);
tooltip.transform.localPosition = Vector3.up * tooltipOffset;
tooltip.transform.rotation = transform.rotation;
SetRendererAlpha(tooltipRenderer, DEFAULT_TOOLTIP_ALPHA);
}
parentMenu.childMenus.Add(this);
lineToParent = GetComponent <LineRenderer>();
lineToParent.startColor = Color.clear;
lineToParent.endColor = Color.clear;
UpdateLines();
SetDecorationLabelAlpha(decorationLabelAlpha.ValueAtTime(Time.time));
SetBackgroundTransparency(iconBgAlpha.ValueAtTime(Time.time));
SetRendererAlpha(spriteRenderer, iconAlpha.ValueAtTime(Time.time));
StartFade(initialState);
SetColliderSize(0.0f);
}