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113 lines
4.1 KiB
C#
113 lines
4.1 KiB
C#
using System;
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using UnityEngine;
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namespace ConformalDecals.MaterialModifiers {
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public class MaterialTextureProperty : MaterialProperty {
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[SerializeField] public Texture2D texture;
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[SerializeField] public bool isNormal;
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[SerializeField] public bool isMain;
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[SerializeField] public bool autoScale;
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[SerializeField] public bool autoTile;
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[SerializeField] private bool _hasTile;
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[SerializeField] private Rect _tileRect;
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[SerializeField] private Vector2 _baseTextureScale = Vector2.one;
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[SerializeField] private Vector2 _textureOffset = Vector2.zero;
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[SerializeField] private Vector2 _textureScale = Vector2.one;
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public float AspectRatio {
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get {
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if (texture == null) return 1;
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if (!_hasTile) return ((float) texture.height) / texture.width;
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return _tileRect.height / _tileRect.width;
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}
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}
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public Rect TileRect {
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get => _tileRect;
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set {
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if (autoTile) return;
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_hasTile = !(Mathf.Abs(value.width) < 0.1) || !(Mathf.Abs(value.height) < 0.1);
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_tileRect = value;
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UpdateTiling();
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}
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}
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public override void ParseNode(ConfigNode node) {
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base.ParseNode(node);
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isNormal = ParsePropertyBool(node, "isNormalMap", true, (PropertyName == "_BumpMap") || (PropertyName == "_DecalBumpMap") || isNormal);
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isMain = ParsePropertyBool(node, "isMain", true, isMain);
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autoScale = ParsePropertyBool(node, "autoScale", true, autoScale);
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autoTile = ParsePropertyBool(node, "autoTile", true, autoTile);
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SetTexture(node.GetValue("textureUrl"));
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if (node.HasValue("tileRect") && !autoTile) {
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TileRect = ParsePropertyRect(node, "tileRect", true, _tileRect);
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}
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}
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public void SetTexture(string textureUrl) {
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if ((textureUrl == null && isNormal) || textureUrl == "Bump") {
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texture = Texture2D.normalTexture;
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}
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else if ((textureUrl == null && !isNormal) || textureUrl == "White") {
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texture = Texture2D.whiteTexture;
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}
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else if (textureUrl == "Black") {
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texture = Texture2D.blackTexture;
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}
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else {
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var textureInfo = GameDatabase.Instance.GetTextureInfo(textureUrl);
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if (textureInfo == null) throw new Exception($"Cannot find texture: '{textureUrl}'");
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texture = isNormal ? textureInfo.normalMap : textureInfo.texture;
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}
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if (texture == null) throw new Exception($"Cannot get texture from texture info '{textureUrl}', isNormalMap = {isNormal}");
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UpdateTiling();
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}
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public override void Modify(Material material) {
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if (material == null) throw new ArgumentNullException(nameof(material));
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if (texture == null) {
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texture = Texture2D.whiteTexture;
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throw new NullReferenceException("texture is null, but should not be");
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}
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material.SetTexture(_propertyID, texture);
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material.SetTextureOffset(_propertyID, _textureOffset);
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material.SetTextureScale(_propertyID, _textureScale);
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}
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public void UpdateScale(Vector2 scale) {
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if (autoScale) {
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_textureScale = _baseTextureScale * scale;
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}
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}
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public void UpdateTiling(Vector2 textureScale, Vector2 textureOffset) {
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if (autoTile) {
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_textureScale = textureScale;
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_textureOffset = textureOffset;
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}
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}
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private void UpdateTiling() {
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if (_hasTile) {
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_baseTextureScale.x = Mathf.Approximately(0, _tileRect.width) ? 1 : _tileRect.width / texture.width;
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_baseTextureScale.y = Mathf.Approximately(0, _tileRect.height) ? 1 : _tileRect.height / texture.height;
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}
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else {
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_baseTextureScale = Vector2.one;
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}
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}
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}
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} |