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Improve node layout algorithm

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This commit is contained in:
stefnotch
2021-01-15 20:23:40 +01:00
parent c112274666
commit 8003055ba6
1 changed files with 20 additions and 4 deletions
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24
Source/Editor/Surface/VisjectSurface.Formatting.cs
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@@ -103,6 +103,8 @@ namespace FlaxEditor.Surface
// Set the vertical offsets
int maxOffset = SetOffsets(nodeData, endNodes, maxLayer);
// Layout the nodes
// Get the largest nodes in the Y and X direction
float[] widths = new float[maxLayer + 1];
float[] heights = new float[maxOffset + 1];
@@ -121,17 +123,31 @@ namespace FlaxEditor.Surface
}
}
// Layout the nodes
Vector2 minSize = new Vector2(180, 180);
Vector2 minDistanceBetweenNodes = new Vector2(20, 20);
// Figure out the node positions (aligned to a grid)
float[] nodeXPositions = new float[widths.Length];
for (int i = 1; i < widths.Length; i++)
{
// Go from right to left (backwards) through the nodes
nodeXPositions[i] = nodeXPositions[i - 1] + minDistanceBetweenNodes.X + widths[i];
}
float[] nodeYPositions = new float[heights.Length];
for (int i = 1; i < heights.Length; i++)
{
// Go from top to bottom through the nodes
nodeYPositions[i] = nodeYPositions[i - 1] + heights[i - 1] + minDistanceBetweenNodes.Y;
}
// Set the node positions
var undoActions = new List<MoveNodesAction>();
var topRightPosition = endNodes[0].Location;
for (int i = 0; i < nodes.Count; i++)
{
if (nodeData.TryGetValue(nodes[i], out var data))
{
Vector2 size = Vector2.Max(minSize, new Vector2(widths[data.Layer], heights[data.Offset]));
Vector2 newLocation = (new Vector2(-data.Layer, data.Offset) * size) + topRightPosition;
Vector2 newLocation = new Vector2(-nodeXPositions[data.Layer], nodeYPositions[data.Offset]) + topRightPosition;
Vector2 locationDelta = newLocation - nodes[i].Location;
nodes[i].Location = newLocation;