Files
OpenRA/OpenRA.Mods.Common/UpdateRules/Rules/20210321/ConvertBoundsToWDist.cs
RoosterDragon 949ba589c0 MiniYaml becomes an immutable data structure.
This changeset is motivated by a simple concept - get rid of the MiniYaml.Clone and MiniYamlNode.Clone methods to avoid deep copying yaml trees during merging. MiniYaml becoming immutable allows the merge function to reuse existing yaml trees rather than cloning them, saving on memory and improving merge performance. On initial loading the YAML for all maps is processed, so this provides a small reduction in initial loading time.

The rest of the changeset is dealing with the change in the exposed API surface. Some With* helper methods are introduced to allow creating new YAML from existing YAML. Areas of code that generated small amounts of YAML are able to transition directly to the immutable model without too much ceremony. Some use cases are far less ergonomic even with these helper methods and so a MiniYamlBuilder is introduced to retain mutable creation functionality. This allows those areas to continue to use the old mutable structures. The main users are the update rules and linting capabilities.
2023-08-07 21:57:10 +03:00

55 lines
1.8 KiB
C#

#region Copyright & License Information
/*
* Copyright (c) The OpenRA Developers and Contributors
* This file is part of OpenRA, which is free software. It is made
* available to you under the terms of the GNU General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version. For more
* information, see COPYING.
*/
#endregion
using System.Collections.Generic;
namespace OpenRA.Mods.Common.UpdateRules.Rules
{
public class ConvertBoundsToWDist : UpdateRule
{
public override string Name => "Convert Interactable and Selection bounds from pixels to WDist.";
public override string Description =>
"The Bounds and DecorationBounds fields on Interactable and Selectable have been converted from pixels to WDist.\n" +
"All bounds must be scaled by 1024 (Rectangular map grid) or 1448 (Isometric map grid) divided by your mod tile size.";
readonly string[] traits = { "Interactable", "Selectable", "IsometricSelectable" };
readonly string[] fields = { "Bounds", "DecorationBounds" };
public override IEnumerable<string> UpdateActorNode(ModData modData, MiniYamlNodeBuilder actorNode)
{
var grid = modData.Manifest.Get<MapGrid>();
var tileSize = grid.TileSize;
var tileScale = grid.TileScale;
foreach (var trait in traits)
{
foreach (var traitNode in actorNode.ChildrenMatching(trait))
{
foreach (var field in fields)
{
foreach (var fieldNode in traitNode.ChildrenMatching(field))
{
var value = fieldNode.NodeValue<int[]>();
for (var i = 0; i < value.Length; i++)
value[i] = value[i] * tileScale / (i % 2 == 1 ? tileSize.Height : tileSize.Width);
fieldNode.ReplaceValue(FieldSaver.FormatValue(value));
}
}
}
}
yield break;
}
}
}