217 lines
7.1 KiB
Scheme
217 lines
7.1 KiB
Scheme
|
;;; tree.scm - twentyseven tree, extended octree
|
||
|
|
;;;
|
||
|
|
;;; Copyright (c) 2011-2012 Johan Ceuppens
|
||
|
|
;;;
|
||
|
|
;;; All rights reserved.
|
||
|
|
;;;
|
||
|
|
;;; Redistribution and use in source and binary forms, with or without
|
||
|
|
;;; modification, are permitted provided that the following conditions
|
||
|
|
;;; are met:
|
||
|
|
;;; 1. Redistributions of source code must retain the above copyright
|
||
|
|
;;; notice, this list of conditions and the following disclaimer.
|
||
|
|
;;; 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
;;; notice, this list of conditions and the following disclaimer in the
|
||
|
|
;;; documentation and/or other materials provided with the distribution.
|
||
|
|
;;; 3. The name of the authors may not be used to endorse or promote products
|
||
|
|
;;; derived from this software without specific prior written permission.
|
||
|
|
;;;
|
||
|
|
;;; THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
|
||
|
|
;;; IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||
|
|
;;; OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||
|
|
;;; IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||
|
|
;;; INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||
|
|
;;; NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||
|
|
;;; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||
|
|
;;; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
;;; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||
|
|
;;; THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
|
||
|
|
(define (aspecterror)
|
||
|
|
(display "message not understood"))
|
||
|
|
|
||
|
|
(define (make-leaf x y z w h depth)
|
||
|
|
(let ((*collide 0))
|
||
|
|
|
||
|
|
(define (get-x)
|
||
|
|
x)
|
||
|
|
|
||
|
|
(define (get-y)
|
||
|
|
y)
|
||
|
|
|
||
|
|
(define (get-z)
|
||
|
|
z)
|
||
|
|
|
||
|
|
(define (get-w)
|
||
|
|
w)
|
||
|
|
|
||
|
|
(define (get-h)
|
||
|
|
h)
|
||
|
|
|
||
|
|
(define (get-d)
|
||
|
|
depth)
|
||
|
|
|
||
|
|
|
||
|
|
(define (set-collide value)
|
||
|
|
(set! *collide value))
|
||
|
|
|
||
|
|
(lambda (msg)
|
||
|
|
(cond ((eq? msg 'x)get-x)
|
||
|
|
((eq? msg 'y)get-y)
|
||
|
|
((eq? msg 'z)get-z)
|
||
|
|
((eq? msg 'w)get-w)
|
||
|
|
((eq? msg 'h)get-h)
|
||
|
|
((eq? msg 'depth)get-d)
|
||
|
|
((eq? msg 'isleaf)#t)
|
||
|
|
((eq? msg 'set-collide)set-collide)
|
||
|
|
(else (display "leaf : ")(aspecterror))
|
||
|
|
))))
|
||
|
|
|
||
|
|
|
||
|
|
(define (make-node x y z w h depth)
|
||
|
|
(let ((*leafcode (make-leaf x y z w h depth))
|
||
|
|
(*nodes '()))
|
||
|
|
|
||
|
|
(define (add n)
|
||
|
|
(set! *nodes (append *nodes (list n))))
|
||
|
|
|
||
|
|
;; get node with index
|
||
|
|
(define (get idx)
|
||
|
|
(list-ref *nodes idx))
|
||
|
|
|
||
|
|
(lambda (msg)
|
||
|
|
(cond
|
||
|
|
((eq? msg 'isleaf) #f)
|
||
|
|
((eq? msg 'get) get)
|
||
|
|
((eq? msg 'add) add)
|
||
|
|
(else (*leafcode msg))
|
||
|
|
))
|
||
|
|
))
|
||
|
|
|
||
|
|
(define (make-twentyseventree x y z w h depth)
|
||
|
|
(let ((*tree (make-node x y z w h depth)))
|
||
|
|
|
||
|
|
(define (generate! border)
|
||
|
|
(generaterec *tree x y z w h depth border))
|
||
|
|
|
||
|
|
(define (generaterec node x y z w h d border)
|
||
|
|
(if (and ;;(procedure? node)
|
||
|
|
(<= d 0))
|
||
|
|
(begin
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-leaf (/ (* i x)4) (/ y 4) (/ z 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-leaf (/ (* i x)4) (/ (* i y) 4) (/ z 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-leaf (/ (* i x)4) (/ (* i y) 4) (/ (*i z) 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-leaf (/ x 4) (/ (* i y) 4) (/ z 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-leaf (/ x 4) (/ (* i y) 4) (/ (* i z) 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-leaf (/ (* i x)4) (/ y 4) (/ (*i z) 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-leaf (/ x 4) (/ y 4) (/ (*i z) 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
|
||
|
|
;; center node
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 21)#t)
|
||
|
|
(let ((tempn ((node 'get) i)))
|
||
|
|
(if (< border (+ ((tempn 'x) ((tempn 'w))))
|
||
|
|
;; borders set for depth see
|
||
|
|
(set! border (+ border border)))
|
||
|
|
((((node 'get) i)'set-collide) 1)
|
||
|
|
)))
|
||
|
|
);;begin
|
||
|
|
(if (> depth 0)
|
||
|
|
(begin
|
||
|
|
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-node (/ (* i x)4) (/ y 4) (/ z 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-node (/ (* i x)4) (/ (* i y) 4) (/ z 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-node (/ (* i x)4) (/ (* i y) 4) (/ (*i z) 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-node (/ x 4) (/ (* i y) 4) (/ z 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-node (/ x 4) (/ (* i y) 4) (/ (* i z) 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-node (/ (* i x)4) (/ y 4) (/ (*i z) 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
((node 'add)(make-node (/ x 4) (/ y 4) (/ (*i z) 4) (/ w 3) (/ h 3) (/ d 3) depth)))
|
||
|
|
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
(generaterec (- depth 1) ((node 'get)i) (* i (/ x 4)) (/ y 4) (/ z 4) (/ w 3) (/ h 3) (/ d 3) border))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
(generaterec (- depth 1) ((node 'get)(+ i 2)) (/ (* i x) 4) (/ (* i y) 4) (/ z 4) (/ w 3) (/ h 3) (/ d 3) border))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
(generaterec (- depth 1) ((node 'get)(+ i 5)) (/ (* i x) 4) (/ (* i y) 4) (/ (* i z) 4) (/ w 3) (/ h 3) (/ d 3) border))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
(generaterec (- depth 1) ((node 'get)(+ i 8)) (/ x 4) (/(* i y) 4) (/ z 4) (/ w 3) (/ h 3) (/ d 3) border))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
(generaterec (- depth 1) ((node 'get)(+ i 11)) (/ x 4) (/(* i y) 4) (/ z 4) (/ w 3) (/ h 3) (/ d 3) border))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
(generaterec (- depth 1) ((node 'get)(+ i 14)) (/ (* i x) 4) (/ y 4) (/ (* i z) 4) (/ w 3) (/ h 3) (/ d 3) border))
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
((< i 4)#t)
|
||
|
|
(generaterec (- depth 1) ((node 'get)(+ i 17)) (/ x 4) (/ y 4) (/ (* i z) 4) (/ w 3) (/ h 3) (/ d 3) border))
|
||
|
|
)))
|
||
|
|
)
|
||
|
|
;; px = Player's x coordinate in the treeworld,
|
||
|
|
;; pdepth = Player's depth in the world tree map
|
||
|
|
(define (collision depth px py pz pdepth)
|
||
|
|
(collisionrec depth *tree px py pz pdepth)
|
||
|
|
)
|
||
|
|
|
||
|
|
(define (collisionrec depth node px py pz pdepth)
|
||
|
|
(if (and ;;(procedure? node)
|
||
|
|
(< px (+ ((node 'x)) (* ((node 'w)) (+ 1 (- depth)))))
|
||
|
|
(> (+ px ((node 'w))) ((node 'x)))
|
||
|
|
(< py (+ ((node 'y)) (* ((node 'h))) (+ (- depth) 1)))
|
||
|
|
(> y ((node 'y)))
|
||
|
|
)
|
||
|
|
|
||
|
|
(cond ((<= depth pdepth)
|
||
|
|
1)
|
||
|
|
((< pdepth depth)
|
||
|
|
2)
|
||
|
|
((> pdepth depth)
|
||
|
|
3)
|
||
|
|
(else
|
||
|
|
(begin
|
||
|
|
(do ((i 0 (+ i 1)))
|
||
|
|
(< i 21)
|
||
|
|
(let ((n ((node 'get)i)))
|
||
|
|
(if (and n (not ((n 'isleaf))
|
||
|
|
))
|
||
|
|
(collisionrec (- depth 1) n px py pz pdepth))))
|
||
|
|
)))))
|
||
|
|
|
||
|
|
|
||
|
|
(lambda (msg)
|
||
|
|
(cond
|
||
|
|
((eq? msg 'generate!)generate!)
|
||
|
|
((eq? msg 'collide) collision)
|
||
|
|
(else (display "twentyseventree : ")(aspecterror)))
|
||
|
|
)))
|