Relocate executable to be in kitty dir

This also means all our runtime paths can be relative to kitty dir,
which should make things easier.

.gitignore

@@ -60,4 +60,6 @@ test/data/Models/*.skeleton.xml
 test/data/Models/*.skeleton
 test/data/Materials/Textures/*.dds
 
-test/data/Models/*
+test/data/Models/*
+
+kitty-gridlock

src/Main.cake

@@ -14,8 +14,7 @@
 (var g-window-width int 1080)
 (var g-window-height int 2340)
 
-;; TODO: Paths are relative to gamelib, including when running, unless we change our working dir
-(define-constant DATA_DIR "../../data/")
+(define-constant DATA_DIR "data/")
 
 (defmacro in-data-dir (path-in-data string)
     (tokenize-push output
@@ -110,11 +109,11 @@ Rush Hour database from Michael Fogleman.\n\n")
   (when exit-reason
     (printf "Exiting. Reason: %s\n" exit-reason))
 
+  (SDL_DestroyTexture background-texture)
+  (set background-texture null)
   (sdl-shutdown window)
   (return 0))
 
-(module-use-sdl-build-options)
-
 (defgenerator define-constant (define-name symbol value any)
   (var define-statement (const ([] CStatementOperation))
        (array
@@ -137,3 +136,12 @@ Rush Hour database from Michael Fogleman.\n\n")
   (return (CStatementOutput environment context tokens startTokenIndex
                             statement (array-size statement)
                             output)))
+
+;;
+;; Building
+;;
+
+(module-use-sdl-build-options)
+
+;; Note that this executable still pulls .so files from Dependencies
+(set-cakelisp-option executable-output "../../kitty-gridlock")