1 files changed, 0 insertions, 205 deletions

@@ -1,205 +0,0 @@
-#!/bin/sh
-#| -*- scheme -*-
-exec csi -R r7rs -ss "$0" "$@"
-game
-|#
-
-(import (scheme base)
-        (scheme write)
-        (chicken io)
-        (chicken port)
-        (yolk common)
-        (yolk xterm)
-        (yolk erase)
-        (yolk cursor)
-        (matchable)
-        (stty))
-
-(define (log . xs)
-  (with-output-to-port (current-error-port)
-    (lambda ()
-      (for-each (lambda (x) (display x) (display " ") x)
-                xs)
-      (newline))))
-
-(define (main args)
-  (parameterize ((world (make-world 80 25)))
-    (dynamic-wind game-setup
-                  game-loop
-                  game-cleanup))
-  #t)
-
-(define (game-setup)
-  ;; Prepare terminal
-  (stty '(raw (not echo)))
-  (set-buffering-mode! (current-input-port) #:none 1)
-  (set-buffering-mode! (current-output-port) #:none 1)
-  (draw alt-buffer-enable
-        erase-screen
-        (cursor-save)
-        invisible-cursor)
-  ;; Set up world
-  (world-init (world))
-  (world-draw (world)))
-
-(define (game-cleanup)
-  ;; Restore terminal
-  (stty '(cooked echo))
-  (draw cursor-home
-        (cursor-restore)
-        alt-buffer-disable
-        visible-cursor))
-
-(define (game-loop)
-  (let loop ((c (readch)))
-    (if (eq? c 'done)
-        #t
-        (let ((done? #f))
-          (match c
-            ((or #\q #\)
-             (set! done? #t))
-            ;; Escape characters
-            (#\escape
-             (match (readch)
-               (#\[ (match (readch)
-                      (#\A (up!))
-                      (#\B (down!))
-                      (#\C (right!))
-                      (#\D (left!))
-                      (else)))
-               (else)))
-            (else))
-          (world-draw (world))
-          (loop (if done? 'done (readch)))))))
-
-(define (readch)
-  (let ((c (integer->char (read-byte))))
-    c))
-
-(define (draw . instructions)
-  (for-each (lambda (i)
-              (cond
-               ((string? i) (display i))
-               ((list? i) (apply draw i))
-               (else (error "Don't know how to draw" i))))
-            instructions))
-
-(define-record-type world
-  (%make-world width height map)
-  world?
-  (width world-width world-width-set!)
-  (height world-height world-height-set!)
-  (map world-map world-map-set!))
-
-(define (in-bounds? world x y)
-  (or (< x (world-width world))
-      (> x 0)
-      (< y (world-height world))
-      (> y 0)))
-
-(define (coords->index world x y)
-  (if (in-bounds? world x y)
-      (+ x (* (world-width world) y))
-      (error "Out of bounds"
-             (list (world-width world) (world-height world))
-             (list x y))))
-
-(define (world-get world x y)
-  (vector-ref (world-map world) (coords->index world x y)))
-
-(define (world-set! world x y obj)
-  (vector-set! (world-map world)
-               (coords->index world x y)
-               obj))
-
-(define (make-world width height)
-  (%make-world width height (make-vector (* width height) #f)))
-
-(define world (make-parameter #f))
-
-(define (for-world proc world)
-  (do ((y 1 (+ y 1)))
-      ((= y (world-height world)) #t)
-    (do ((x 1 (+ x 1)))
-        ((= x (world-width world)) #t)
-      (proc world x y))))
-
-(define (world-draw world)
-  (draw cursor-home)
-  (for-world (lambda (w x y)
-               (cond
-                ((thing? (world-get w x y))
-                 (draw (cursor-move x y)
-                       (thing-look (world-get w x y))))
-                (else
-                 (draw (cursor-move x y)
-                       " "))))
-             world))
-
-(define (world-init world)
-  (for-world (lambda (w x y)
-               (cond
-                ((or (= x 1)
-                     (= y 1)
-                     (= x (- (world-width world) 1))
-                     (= y (- (world-height world) 1)))
-                 (thing-place! w (wall x y)))
-                (else)))
-             world)
-  (thing-place! world (me)))
-
-(define-record-type thing
-  (make-thing name look x y z attrs)
-  thing?
-  (name thing-name)
-  (look thing-look thing-look-set!)
-  (x thing-x thing-x-set!)
-  (y thing-y thing-y-set!)
-  (z thing-z thing-z-set!)
-  (attrs thing-attrs thing-attrs-set!))
-
-(define (thing-place! world thing)
-  (world-set! world (thing-x thing) (thing-y thing) thing))
-
-(define (thing-move! world thing x y)
-  (world-set! world (thing-x thing) (thing-y thing) #f)
-  (thing-x-set! thing x)
-  (thing-y-set! thing y)
-  (world-set! world x y thing))
-
-(define (thing-move-relative! world thing dx dy)
-  (let* ((new-x (+ (thing-x thing) dx))
-         (new-y (+ (thing-y thing) dy))
-         (other (world-get world new-x new-y)))
-    (cond
-     ((and (thing? other)
-           (> (thing-z other) (thing-z thing))))
-     (else
-      (cond ((< new-x 1)
-             (set! new-x 1))
-            ((> new-x (- (world-width world) 1))
-             (set! new-x (- (world-width world) 1))))
-      (cond ((< new-y 1)
-             (set! new-y 1))
-            ((> new-y (- (world-height world) 1))
-             (set! new-y (- (world-height world) 1))))
-      (thing-move! world thing new-x new-y)))))
-
-(define (wall x y)
-  (make-thing 'wall "#" x y 100 '()))
-
-(define me
-  (make-parameter
-   (make-thing 'me "@" 40 10 2 '())))
-
-(define (up!)
-  (thing-move-relative! (world) (me) 0 -1))
-
-(define (down!)
-  (thing-move-relative! (world) (me) 0 1))
-
-(define (right!)
-  (thing-move-relative! (world) (me) 1 0))
-
-(define (left!)
-  (thing-move-relative! (world) (me) -1 0))