private static void PositionVertical(BonsaiNode node)
{
BonsaiNode parent = node.Parent;
if (parent != null)
{
float ySeperation = parent.ChildCount() == 1
? FormatPositioning.yLevelSeparation / 2f
: FormatPositioning.yLevelSeparation;
float x = node.Position.x;
float y = parent.Position.y + parent.Size.y + ySeperation;
node.Position = new Vector2(x, y);
}
}
private static void PositionHorizontal(BonsaiNode node, FormatPositioning positioning)
{
float xCoord;
int childCount = node.ChildCount();
// If it is a parent of 2 or more children then center in between the children.
if (childCount > 1)
{
// Get the x-midpoint between the first and last children.
Vector2 firstChildPos = node.GetChildAt(0).Center;
Vector2 lastChildPos = node.GetChildAt(childCount - 1).Center;
float xMid = (firstChildPos.x + lastChildPos.x) / 2f;
xCoord = xMid;
positioning.xIntermediate = xMid;
}
// A node with 1 child, place directly above child.
else if (childCount == 1)
{
xCoord = positioning.xIntermediate;
}
// A leaf node
else
{
float branchWidth = MaxWidthForBranchList(node);
positioning.xLeaf += 0.5f * (positioning.lastLeafWidth + branchWidth) + FormatPositioning.xLeafSeparation;
xCoord = positioning.xLeaf;
positioning.xIntermediate = positioning.xLeaf;
positioning.lastLeafWidth = branchWidth;
}
// Set to 0 on the y-axis for this pass.
node.Center = new Vector2(xCoord, 0f);
}
public static void DrawNodeConnections(CanvasTransform t, BonsaiNode node)
{
if (node.ChildCount() == 0)
{
return;
}
var prefs = BonsaiPreferences.Instance;
Color connectionColor = prefs.defaultConnectionColor;
float connectionWidth = prefs.defaultConnectionWidth;
if (node.Behaviour.StatusEditorResult == BTNode.EStatusEditor.Running)
{
connectionColor = prefs.runningStatusColor;
connectionWidth = prefs.runningConnectionWidth;
}
// Start the Y anchor coord at the tip of the Output port.
float yoffset = node.RectPositon.yMax;
// Calculate the anchor position.
float anchorX = node.RectPositon.center.x;
float anchorY = (yoffset + node.GetNearestInputY()) / 2f;
// Anchor line, between the first and last child.
// Find the min and max X coords between the children and the parent.
node.GetBoundsX(out float anchorLineStartX, out float anchorLineEndX);
// Get start and end positions of the anchor line (The common line where the parent and children connect).
var anchorLineStart = new Vector2(anchorLineStartX, anchorY);
var anchorLineEnd = new Vector2(anchorLineEndX, anchorY);
// The tip where the parent starts its line to connect to the anchor line.
var parentAnchorTip = new Vector2(anchorX, yoffset);
// The point where the parent connects to the anchor line.
var parentAnchorLineConnection = new Vector2(anchorX, anchorY);
// Draw the lines from the calculated positions.
DrawLineCanvasSpace(
t,
parentAnchorTip,
parentAnchorLineConnection,
connectionColor,
connectionWidth);
DrawLineCanvasSpace(
t,
anchorLineStart,
anchorLineEnd,
prefs.defaultConnectionColor,
prefs.defaultConnectionWidth);
foreach (BonsaiNode child in node.Children)
{
// Get the positions to draw a line between the node and the anchor line.
Vector2 center = child.InputRect.center;
var anchorLineConnection = new Vector2(center.x, anchorY);
// The node is running, hightlight the connection.
if (child.Behaviour.StatusEditorResult == BTNode.EStatusEditor.Running)
{
DrawLineCanvasSpace(
t,
center,
anchorLineConnection,
prefs.runningStatusColor,
prefs.runningConnectionWidth);
// Hightlight the portion of the anchorline between the running child and parent node.
DrawLineCanvasSpace(
t,
anchorLineConnection,
parentAnchorLineConnection,
prefs.runningStatusColor,
prefs.runningConnectionWidth);
}
else
{
// The node is not running, draw a default connection.
DrawLineCanvasSpace(
t,
anchorLineConnection,
center,
prefs.defaultConnectionColor,
prefs.defaultConnectionWidth);
}
}
}
