Add format_check.py and adjust gitignore to new zig cache location.

.github/workflows/ci.yml

@@ -0,0 +1,22 @@
+# This is a basic workflow that is manually triggered
+
+name: Format Check
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  format_check:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v3
+      with:
+        python-version: "3.10"
+    - name: Check Format
+      run: python3 "format_check.py"

.gitignore

@@ -1,4 +1,5 @@
 zig-out
 zig-cache
+.zig-cache
 .vscode
-zig-out.tar.gz
+zig-out.tar.gz

format_check.py

@@ -0,0 +1,44 @@
+import os
+
+import sys
+
+directory = os.fsencode(".")
+
+fails = 0
+
+for subdir, dirs, files in os.walk("."):
+	for file in files:
+		#print os.path.join(subdir, file)
+		filepath = subdir + os.sep + file
+		if filepath.startswith("./compiler"): continue
+		if filepath.startswith("./saves"): continue
+		if filepath.startswith("./serverAssets"): continue
+		if filepath.startswith("./zig-cache"): continue
+		if filepath.startswith("./.zig-cache"): continue
+
+		if filepath.endswith(".json") or filepath.endswith(".zig") or filepath.endswith(".py") or filepath.endswith(".zon") or filepath.endswith(".vs") or filepath.endswith(".fs") or filepath.endswith(".glsl"):
+			with open(filepath, "r", newline = '') as f:
+				string = f.read()
+				line = 1
+				lineStart = True
+				for i, c in enumerate(string):
+					if(c == '\r'):
+						print("Incorrect line ending \\r in file ", filepath, " in line ", line, ". Please configure your editor to use LF instead of CRLF.")
+						fails += 1
+					elif(c == '\n'):
+						line += 1
+						lineStart = True
+					elif(c == ' '):
+						if(lineStart):
+							print("Incorrect indentation in file ", filepath, " in line ", line, ". Please use tabs instead of spaces.")
+							fails += 1
+							lineStart = False # avoid repeating this error multiple times
+					elif(c == '\t'):
+						continue
+					elif(lineStart):
+						lineStart = False
+					else:
+						continue
+if(fails != 0):
+	sys.exit(1)
+sys.exit(0)