private void positionNode(
BehaviourNode node,
Dictionary <BehaviourNode, Vector2> positions,
Dictionary <BehaviourNode, int> levels,
PositioningParameters posParams
)
{
// Obtained from level order of tree.
float yLevel = levels[node] * posParams.yLevelOffset;
int childCount = node.ChildCount();
// If it is a parent of 2 or more children then center in between the children.
if (childCount > 1)
{
BehaviourNode firstChild = node.GetChildAt(0);
BehaviourNode lastChild = node.GetChildAt(childCount - 1);
// Get the x-midpoint between the first and last children.
Vector2 firstChildPos = positions[firstChild];
Vector2 lastChildPos = positions[lastChild];
float xMid = (firstChildPos.x + lastChildPos.x) / 2f;
posParams.xIntermediate = xMid;
positions.Add(node, new Vector2(xMid, yLevel));
}
// A node with 1 child
else if (childCount == 1)
{
positions.Add(node, new Vector2(posParams.xIntermediate, yLevel));
}
// A leaf node
else
{
Vector2 position = new Vector2(posParams.xLeaf, yLevel);
posParams.xIntermediate = posParams.xLeaf;
float width = calculateNameWidth(node);
// Offset the x leaf position for the next leaf node.
if (width > BonsaiNode.kDefaultSize.x)
{
posParams.xLeaf += width + PositioningParameters.xPadding;
}
else
{
posParams.xLeaf += posParams.xDeltaLeaf;
}
positions.Add(node, position);
}
}
