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// !! AI ARTIFACT !!
// This code was originally generated by Claude 3.5 Sonnet.
// I wanted to write this tooling like I want a fucking hole in the head so I
// kindly asked Claude to write it for me. It's shitty and poorly designed, but
// it works well enough for my purposes.
// It has been slightly tweaked by me, and validated on *this* codebase. It is
// provided with no warranty.
using UnityEngine;
using UnityEditor;
using System.IO;
using System.Text.RegularExpressions;
using System.Collections.Generic;
using System.Linq;
public class ShaderInliner : EditorWindow
{
private string inputShaderPath;
private string outputShaderPath;
[MenuItem("Tools/yum_food/Shader Inliner")]
public static void ShowWindow()
{
GetWindow<ShaderInliner>("Shader Inliner");
}
private void OnGUI()
{
GUILayout.Label("Shader Inliner", EditorStyles.boldLabel);
inputShaderPath = EditorGUILayout.TextField("Input Shader Path", inputShaderPath);
if (GUILayout.Button("Select Input Shader"))
{
inputShaderPath = EditorUtility.OpenFilePanel("Select Shader", "", "shader");
}
if (GUILayout.Button("Inline Shader"))
{
if (string.IsNullOrEmpty(inputShaderPath))
{
EditorUtility.DisplayDialog("Error", "Please select an input shader.", "OK");
return;
}
InlineShader();
}
}
private void InlineShader()
{
string shaderContent = File.ReadAllText(inputShaderPath);
string inlinedShader = ProcessShader(shaderContent, Path.GetDirectoryName(inputShaderPath));
string fileName = Path.GetFileNameWithoutExtension(inputShaderPath);
outputShaderPath = Path.Combine(Path.GetDirectoryName(inputShaderPath), $"{fileName}_inlined.shader");
File.WriteAllText(outputShaderPath, inlinedShader);
AssetDatabase.Refresh();
//EditorUtility.DisplayDialog("Success", $"Inlined shader saved to:\n{outputShaderPath}", "OK");
}
private string ProcessShader(string content, string basePath)
{
// Update shader name
content = Regex.Replace(content, @"Shader\s+""(.+?)""", match =>
{
string shaderName = match.Groups[1].Value;
return $"Shader \"{shaderName}_inlined\"";
});
// Process each Pass independently
content = Regex.Replace(content, @"(CGPROGRAM.*?ENDCG)", match =>
{
return ProcessPass(match.Value, basePath);
}, RegexOptions.Singleline);
// Check for mismatched preprocessor macros in the entire shader
CheckMismatchedMacros(content);
return content;
}
private string ProcessPass(string passContent, string basePath)
{
HashSet<string> includedFiles = new HashSet<string>();
string pattern = @"#include\s+""(.+?)""";
return Regex.Replace(passContent, pattern, match =>
{
string includePath = match.Groups[1].Value;
string fullPath = Path.Combine(basePath, includePath);
if (File.Exists(fullPath))
{
if (!includedFiles.Contains(fullPath))
{
includedFiles.Add(fullPath);
string includeContent = File.ReadAllText(fullPath);
return ProcessInclude(includeContent, Path.GetDirectoryName(fullPath), includedFiles);
}
else
{
return "// Already included in this pass: " + includePath;
}
}
else
{
Debug.LogWarning($"Include file not found: {fullPath}");
return match.Value;
}
});
}
private string ProcessInclude(string content, string basePath, HashSet<string> includedFiles)
{
string pattern = @"#include\s+""(.+?)""";
return Regex.Replace(content, pattern, match =>
{
string includePath = match.Groups[1].Value;
string fullPath = Path.Combine(basePath, includePath);
if (File.Exists(fullPath))
{
if (!includedFiles.Contains(fullPath))
{
includedFiles.Add(fullPath);
string includeContent = File.ReadAllText(fullPath);
return ProcessInclude(includeContent, Path.GetDirectoryName(fullPath), includedFiles);
}
else
{
return "// Already included in this pass: " + includePath;
}
}
else
{
Debug.LogWarning($"Include file not found: {fullPath}");
return match.Value;
}
});
}
private void CheckMismatchedMacros(string content)
{
var stack = new Stack<string>();
var lines = content.Split('\n');
var macroPattern = @"^\s*#(if|ifdef|ifndef|elif|else|endif|if\s+defined)";
for (int i = 0; i < lines.Length; i++)
{
var line = lines[i].Trim();
var match = Regex.Match(line, macroPattern);
if (match.Success)
{
var directive = match.Groups[1].Value;
switch (directive)
{
case "if":
case "ifdef":
case "ifndef":
case "if defined":
stack.Push(directive);
break;
case "elif":
if (stack.Count == 0 || (stack.Peek() != "if" && stack.Peek() != "elif"))
{
Debug.LogError($"Mismatched #elif at line {i + 1}");
}
else
{
stack.Pop();
stack.Push("elif");
}
break;
case "else":
if (stack.Count == 0 || (stack.Peek() != "if" && stack.Peek() != "elif"))
{
Debug.LogError($"Mismatched #else at line {i + 1}");
}
else
{
stack.Pop();
stack.Push("else");
}
break;
case "endif":
if (stack.Count == 0)
{
Debug.LogError($"Mismatched #endif at line {i + 1}");
}
else
{
stack.Pop();
}
break;
}
}
}
if (stack.Count > 0)
{
Debug.LogError($"Unclosed preprocessor directives: {string.Join(", ", stack)}");
}
}
}
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