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quicklisp quickproject and import of test code

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Dan Ballard 2011-07-13 00:50:34 -07:00
commit 74e4e3e925
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README.txt Normal file
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This is the stub README.txt for the "flight-sim" project.

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flight-sim.asd Normal file
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;;;; flight-sim.asd
(asdf:defsystem #:flight-sim
:serial t
:depends-on (#:cl-opengl
#:cl-glu
#:lispbuilder-sdl)
:components ((:file "package")
(:file "flight-sim")))

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flight-sim.lisp Normal file
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;;;; flight-sim.lisp
(in-package #:flight-sim)
;;; "flight-sim" goes here. Hacks and glory await!
(defmacro restartable (&body body)
"Helper macro since we use continue restarts a lot
(remember to hit C in slime or pick the restart so errors don't kill the app"
`(restart-case
(progn ,@body)
(continue () :report "Continue")))
(defun make-2d-array (h w contents)
(let ((arr (make-array h)))
(do ((i 0 (incf i))
(rest-list contents (rest rest-list)))
((eql i h))
(setf (aref arr i) (make-array w :initial-contents (car rest-list))))
arr))
(defparameter *n* (make-array 3 :initial-contents '(0 0 1)))
(defparameter *v* (make-2d-array 24 3 '(
(0.0 1 0) (-0.5 0 0.5) (0.5 0 0.5)
(0.0 1 0) (0.5 0 -0.5) (-0.5 0 -0.5)
(0.0 1 0) (0.5 0 0.5) (0.5 0 -0.5)
(0.0 1 0) (-0.5 0 -0.5) (-0.5 0 0.5)
(0.0 -1 0) (-0.5 0 0.5) (0.5 0 0.5)
(0.0 -1 0) (0.5 0 -0.5) (-0.5 0 -0.5)
(0.0 -1 0) (0.5 0 0.5) (0.5 0 -0.5)
(0.0 -1 0) (-0.5 0 -0.5) (-0.5 0 0.5)
)))
(defparameter *faces* (make-2d-array 8 3 '((0 1 2) (3 4 5) (6 7 8) (9 10 11)
(13 12 14) (16 15 17) (19 18 20) (22 21 23))))
(defparameter *position* (make-array 3 :initial-contents
'(0 0 -3)))
(let ((time-units (/ 1.0 internal-time-units-per-second)))
(defun wall-time (&key (offset 0))
(+ (* (get-internal-real-time) time-units)
offset)))
(defparameter *start-time* (wall-time))
(defparameter *last-time* nil)
(defparameter *num-frames* 0)
;;(defparameter *t1* '( (-0.5 -0.5 0) (0 0.5 0) (0.5 -0.5 0)))
(defun get-vertecies (faces)
(make-array (length faces) :initial-contents
(loop for i across faces collecting (aref *v* i))))
(defun shift-color (time)
(values
;;; red
(/ (+ (* (sin (+ (* 0.3 time) 0)) 127) 128) 255)
;;; green
(/ (+ (* (sin (+ (* 0.3 time) (* 2/3 PI))) 127 ) 128) 255)
;;; blue
(/ (+ (* (sin (+ (* 0.3 time) (* 4/3 PI))) 127) 128) 255)))
(defun make-rotation-matrix (xa ya za)
(let ((sxa (sin xa))
(cxa (cos xa))
(sya (sin ya))
(cya (cos ya))
(sza (sin za))
(cza (cos za)))
(make-array '(3 3) :initial-contents (list (list (* cya cza) (+ (- (* cxa sza)) (* sxa sya cza)) (+ (* sxa sza) (* cxa sya cza)))
(list (* cya sza) (+ (* cxa cza) (* sxa sya sza)) (+ (- (* sxa cza)) (* cxa sya sza)))
(list (- sya) (* sxa cya) (* cxa cya))))))
(defun rotate* (m v)
(let ((result (make-array 3 :initial-element 0)))
(dotimes (x 3)
(dotimes (y 3)
(incf (aref result x) (* (aref v y) (aref m x y)))))
result))
(defun translate-point (v1 v2 &optional (fn #'+))
(let ((result (make-array 3)))
(dotimes (i 3)
(setf (aref result i) (funcall fn (aref v1 i) (aref v2 i))))
result))
(defun translate-triangle (tri position)
(make-array (length tri) :initial-contents
(loop for v across tri collecting (translate-point position v))))
;(defun rotate-vertex-2d (v rM)
; v)
;; (let ((result (lm:* rM (lm:vector (first v) (second v)))))
;; (list (lm:elt result 0) (lm:elt result 1))))
;; (let* ((x (first v))
;; (y (second v))
;; (theta (atan (if (eql 0 x) 1000000 (/ y x))))
;; (hyp (sqrt (+ (* x x) (* y y)))))
;; (list (/ (cos (+ theta time)) hyp) (/ (sin (+ theta time)) hyp) (third v))))
; (list (+ (first v) (/ (sin time) 2)) (+ (second v) (/ (cos time) 2)) (third v)))
(defun rotate-triangle (tri m)
(make-array (length tri) :initial-contents
(loop for v across tri collecting (rotate* m v))))
; (let* ((angle (/ time 1000))
; (cos-a (cos angle))
; (sin-a (sin angle))
; (rM nil)) ;lm:make-matrix 2 2 :initial-elements
; ; '(cos-a sin-a
; ; (- sin-a) cos-a))))
; (list (append (rotate-vertex-2d (first tri) rM) '((third (firt tri))))
; (append (rotate-vertex-2d (second tri) rM) '((third (second tri))))
; (append (rotate-vertex-2d (third tri) rM) (third (third tri))))))
;
(defun draw-triangle (tri time)
(gl:with-primitive :triangles
(multiple-value-bind (red green blue) (shift-color time)
(gl:color red green blue))
(let ((v (aref tri 0)))
(gl:vertex (aref v 0) (aref v 1) (aref v 2)))
(multiple-value-bind (green blue red) (shift-color time)
(gl:color red green blue))
(let ((v (aref tri 1)))
(gl:vertex (aref v 0) (aref v 1) (aref v 2)))
(multiple-value-bind (blue green red) (shift-color time)
(gl:color red green blue))
(let ((v (aref tri 2)))
(gl:vertex (aref v 0) (aref v 1) (aref v 2)))))
(defun draw ()
"draw a frame"
(let* ((time (- (wall-time) *start-time*)))
(gl:clear :color-buffer-bit)
;;; draw a triangle
(loop for face-list across *faces* do
(let ((rt (translate-triangle (rotate-triangle (get-vertecies face-list) (make-rotation-matrix 0 (* 2 time) 0)) (rotate* (make-rotation-matrix 0 time 0) *position*))))
(draw-triangle rt time)))
;; finish the frame
(gl:flush)
(sdl:update-display)
(incf *num-frames*)
(if (not (eql (floor *last-time*) (floor time)))
(let* ((short-interval (- time *last-time* ))
(long-interval time)
(short-fps (floor (if (zerop short-interval) 0 (/ 1 short-interval))))
(long-fps (floor (if (zerop long-interval) 0 (/ *num-frames* long-interval)))))
(format t "FPS since last:~a since start:~a~%" short-fps long-fps)))
(setf *last-time* time)))
(defun reshape ()
(gl:shade-model :smooth)
(gl:clear-color 0 0 0 0)
(gl:clear-depth 1)
; (gl:enable :depth-test)
; (gl:depth-func :lequal)
(gl:enable :cull-face)
(gl:hint :perspective-correction-hint :nicest)
(gl:matrix-mode :projection)
(gl:load-identity)
(glu:perspective 50; 45 ;; FOV
1.0 ;; aspect ratio(/ width (max height 1))
1/10 ;; z near
100 ;; z far
)
(gl:matrix-mode :modelview)
(gl:load-identity)
(glu:look-at 0 2 7 ;; eye
0 0 0 ;; center
0 1 0 ;; up in y pos
)
)
(defun init ()
(setf *start-time* (wall-time))
(setf *num-frames* 0)
(setf *last-time* 0)
; (reshape)
)
(defun main-loop ()
(init)
(sdl:with-init ()
(sdl:window 320 240 :flags sdl:sdl-opengl)
;; cl-opengl needs platform specific support to be able to load GL
;; extensions, so we need to tell it how to do so in lispbuilder-sdl
(reshape)
(setf cl-opengl-bindings:*gl-get-proc-address* #'sdl-cffi::sdl-gl-get-proc-address)
(sdl:with-events ()
(:quit-event () t)
(:idle ()
;; this lets slime keep working while the main loop is running
;; in sbcl using the :fd-handler swank:*communication-style*
;; (something similar might help in some other lisps, not sure which though)
#+(and sbcl (not sb-thread)) (restartable
(sb-sys:serve-all-events 0))
(restartable (draw))))))

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package.lisp Normal file
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;;;; package.lisp
(defpackage #:flight-sim
(:use #:cl)
(:export #:main-loop))