84 lines
2.4 KiB
Scheme
84 lines
2.4 KiB
Scheme
(define-macro (time expr)
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`(let ((start (*s7* 'cpu-time)))
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(let ((res (list ,expr)))
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(list (car res)
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(- (*s7* 'cpu-time) start)))))
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(define-macro (funcinfo func info)
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`(*function* (funclet ,func) ,info))
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(define-macro (funcloc func)
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`(format #f "~A:~A" (funcinfo ,func 'file) (funcinfo ,func 'line)))
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(define-macro (funcsrc func)
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`(funcinfo ,func 'source))
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(define (objects->string . objs)
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(apply string-append (map (lambda (obj) (object->string obj #t)) objs)))
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(define-macro (glog data lvl)
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(let ((file (*function* (outlet (curlet)) 'file))
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(line (*function* (outlet (curlet)) 'line)))
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`(log ,lvl ,data ,file ,line)))
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(define-macro (flog data lvl)
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`(log ,lvl ,data (funcinfo (*function*) 'file) (funcinfo (*function*) 'line)))
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(define (loginfo . data) (glog (objects->string data) 0))
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(define (logwarn . data) (glog (objects->string data) 1))
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(define (logerr . data) (glog (objects->string data) 2))
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(define (logcrit . data) (glog (objects->string data) 3))
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(define (set_fps fps) (settings_cmd 0 (/ 1 fps)))
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(define (set_update fps) (settings_cmd 1 (/ 1 fps)))
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(define (set_phys fps) (settings_cmd 2 (/ 1 fps)))
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(define (win_fulltoggle w) (win_cmd w 0))
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(define (win_fullscreen w) (win_cmd w 1))
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(define (win_unfullscreen w) (win_cmd w 2))
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(define (win_title s) (win_cmd 0 3 s))
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(define (load_level s) (gen_cmd 0 s))
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(define (load_prefab s) (gen_cmd 1 s))
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(define (quit) (sys_cmd 0))
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(define (exit) (quit))
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(define (sound_play sound) (sound_cmd sound 0))
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(define (sound_pause sound) (sound_cmd sound 1))
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(define (sound_stop sound) (sound_cmd sound 2))
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(define (sound_restart sound) (sound_cmd sound 3))
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(define-macro (update . expr)
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(let ((f (gensym)))
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`(begin
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(define (,f) (begin . ,expr))
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(register 0 ,f))))
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(define-macro (while condition . body)
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(let ((loop (gensym)))
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`(let ,loop ()
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(cond (,condition
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(begin . ,body)
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(,loop))))))
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(define (clamp val min max)
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(cond ((< val min) min)
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((> val max) max)
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(else val)))
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(define (lerp s f dt)
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(+ s (* (clamp dt 0 1) (- f s))))
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(define (deg2rad deg)
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(* deg 0.01745329252))
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(define (body_angle! body angle) (set_body body 0 angle))
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(define (body_pos! body x y) (set_body_pos body 0 x y))
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(define (body_move! body x y) (set_body_pos body 1 x y))
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(define-macro (collide . expr)
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(let ((f (gensym)))
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`(begin
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(define (,f) (begin . ,expr))
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(phys_cmd 0 ,f))))
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