Refactor(Structure): Move ADTs into adt/ folder, rename spel.rkt to main.rkt

New structure groups all ADT modules under adt/ directory, removing
redundant adt- prefix from filenames. Library names now read as
(pacman-project adt position) etc. All imports updated accordingly.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

pacman-project/adt/draw.rkt

@@ -8,7 +8,7 @@
 ;; pixels, windows, or sprites. Grid-to-pixel conversion happens exclusively
 ;; here.
 
-(define-library (pacman-project adt-draw)
+(define-library (pacman-project adt draw)
   (import (scheme base)
           (pp1 graphics)
           (pacman-project constants))
@@ -194,12 +194,6 @@
               ((pause-tile 'draw-rectangle!) 0 90 670 height "black")
               ((pause-tile 'draw-text!) "Game Paused" 40 200 400 "red"))))
 
-        ;; redraw-maze! :: maze -> /
-        ;; Redraws the maze (after door removal).
-        (define (redraw-maze! maze)
-          ((maze-tile 'clear!))
-          (draw-maze! maze))
-
         ;;
         ;; Main draw function
         ;;

pacman-project/adt/game.rkt

@@ -7,11 +7,11 @@
 ;; Top-level game object that connects the level (logic) with the draw ADT
 ;; (graphics). Registers callbacks for the game loop, keys, and drawing.
 
-(define-library (pacman-project adt-game)
+(define-library (pacman-project adt game)
   (import (scheme base)
           (pacman-project constants)
-          (pacman-project adt-level)
+          (pacman-project adt level)
-          (pacman-project adt-draw))
+          (pacman-project adt draw))
   (export make-game)
 
   (begin

pacman-project/adt/key.rkt

@@ -9,10 +9,10 @@
 ;; The key is placed at a random coin position in the maze. When Pac-Man
 ;; picks it up, doors can be opened. Contains NO graphics code.
 
-(define-library (pacman-project adt-key)
+(define-library (pacman-project adt key)
   (import (scheme base)
           (pacman-project constants)
-          (pacman-project adt-position))
+          (pacman-project adt position))
   (export make-key)
 
   (begin

pacman-project/adt/level.rkt

@@ -8,15 +8,15 @@
 ;; pickup, door opening, teleportation, pause, and time management.
 ;; Contains NO graphics code.
 
-(define-library (pacman-project adt-level)
+(define-library (pacman-project adt level)
   (import (scheme base)
           (pacman-project constants)
-          (pacman-project adt-position)
+          (pacman-project adt position)
-          (pacman-project adt-maze)
+          (pacman-project adt maze)
-          (pacman-project adt-pacman)
+          (pacman-project adt pacman)
-          (pacman-project adt-key)
+          (pacman-project adt key)
-          (pacman-project adt-score)
+          (pacman-project adt score)
-          (pacman-project adt-timer))
+          (pacman-project adt timer))
   (export make-level)
 
   (begin

pacman-project/adt/maze.rkt

@@ -7,7 +7,7 @@
 ;; The maze contains the logical grid with cells. Each cell has a type
 ;; (wall, coin, empty, key, door). This ADT contains NO graphics code.
 
-(define-library (pacman-project adt-maze)
+(define-library (pacman-project adt maze)
   (import (scheme base)
           (pacman-project constants))
   (export make-maze)

pacman-project/adt/pacman.rkt

@@ -7,9 +7,9 @@
 ;; Manages the logical state of the player: grid position and current
 ;; direction. Contains NO graphics code.
 
-(define-library (pacman-project adt-pacman)
+(define-library (pacman-project adt pacman)
   (import (scheme base)
-          (pacman-project adt-position))
+          (pacman-project adt position))
   (export make-pacman)
 
   (begin

pacman-project/adt/position.rkt

@@ -7,7 +7,7 @@
 ;; A position represents a location on the logical maze grid.
 ;; Coordinates are in grid units (row, col), NOT pixels.
 
-(define-library (pacman-project adt-position)
+(define-library (pacman-project adt position)
   (import (scheme base))
   (export make-position)
 

pacman-project/adt/score.rkt

@@ -6,7 +6,7 @@
 
 ;; Tracks the player's score. Contains NO graphics code.
 
-(define-library (pacman-project adt-score)
+(define-library (pacman-project adt score)
   (import (scheme base)
           (pacman-project constants))
   (export make-score)

pacman-project/adt/timer.rkt

@@ -6,7 +6,7 @@
 
 ;; Manages the countdown time limit. Contains NO graphics code.
 
-(define-library (pacman-project adt-timer)
+(define-library (pacman-project adt timer)
   (import (scheme base)
           (pacman-project constants))
   (export make-timer)

pacman-project/main.rkt

@@ -5,7 +5,7 @@
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 (import (scheme base)
-        (pacman-project adt-game))
+        (pacman-project adt game))
 
 (define game (make-game))
 ((game 'start!))

pacman-project/tests/test-maze.rkt

@@ -8,7 +8,7 @@
   (import (scheme base)
           (pp1 tests)
           (pacman-project constants)
-          (pacman-project adt-maze))
+          (pacman-project adt maze))
   (export test)
 
   (begin

pacman-project/tests/test-pacman.rkt

@@ -7,8 +7,8 @@
 (define-library (pacman-project tests test-pacman)
   (import (scheme base)
           (pp1 tests)
-          (pacman-project adt-position)
+          (pacman-project adt position)
-          (pacman-project adt-pacman))
+          (pacman-project adt pacman))
   (export test)
 
   (begin

pacman-project/tests/test-position.rkt

@@ -7,7 +7,7 @@
 (define-library (pacman-project tests test-position)
   (import (scheme base)
           (pp1 tests)
-          (pacman-project adt-position))
+          (pacman-project adt position))
   (export test)
 
   (begin

pacman-project/tests/test-score.rkt

@@ -0,0 +1,30 @@
+#lang r7rs
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;                            Tests: Score ADT                               ;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(define-library (pacman-project tests test-score)
+  (import (scheme base)
+          (pp1 tests)
+          (pacman-project adt score))
+  (export test)
+
+  (begin
+
+    ;; Test initial score
+    (define (test-initial)
+      (define s (make-score))
+      (check-eq? (s 'points) 0 "Initial score should be 0"))
+
+    ;; Test score increase
+    (define (test-increase)
+      (define s (make-score))
+      ((s 'increase!))
+      (check-eq? (s 'points) 10 "Score should be 10 after 1 coin")
+      ((s 'increase!))
+      (check-eq? (s 'points) 20 "Score should be 20 after 2 coins"))
+
+    (define (test)
+      (run-test test-initial "Score: initial score")
+      (run-test test-increase "Score: increase"))))

pacman-project/tests/test-timer.rkt

@@ -7,7 +7,7 @@
 (define-library (pacman-project tests test-timer)
   (import (scheme base)
           (pp1 tests)
-          (pacman-project adt-timer))
+          (pacman-project adt timer))
   (export test)
 
   (begin