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;;;; the-price-of-a-cup-of-coffee.lisp
(in-package #:the-price-of-a-cup-of-coffee)
(defvar *human-fps* 3)
(def-normal-class human ()
pos
sheet
faces
(face :facing-down)
(frame 0)
(next-frame-at 0))
(defmethod initialize-instance :after ((human human) &key)
(with-slots (faces pos) human
(let ((rect (aref (getf faces :facing-down) 0)))
(setf pos
(sdl2:make-rect 0 0
(sdl2:rect-width rect)
(sdl2:rect-height rect))))))
(defgeneric render (sprite renderer))
(defgeneric update (thing time))
(defmethod update ((human human) ticks)
(with-slots (frame next-frame-at faces face) human
(when (<= next-frame-at ticks)
(incf next-frame-at (/ 1000 *human-fps*))
(setf next-frame-at (max next-frame-at ticks))
(setf frame (mod (1+ frame) (length (getf faces face)))))))
(defmethod render ((human human) renderer)
(with-slots (pos sheet faces face frame) human
(sdl2:render-copy renderer sheet
:dest-rect pos
:source-rect (aref (getf faces face) frame))))
(def-normal-class pedestrian (human)
(walk-vec (list 2 0))
(comfort-rad 60)
(react-per-sec 1)
(anger 0.1)
(kindness 0.02)
(generosity 0.25)
(vulnerability 3))
(def-normal-class hero (human)
(stress 0)
(money 0)
(coldness 0)
(sick-p nil)
(walking-speed 5)
(relax-rate 1))
(defvar *nance* nil)
(defun boot-up (renderer)
(setf *nance-tile-defs* (make-source-rects *nance-tile-defs*))
(with-surface-from-file (surf +nance-sheet-image+)
(setf *nance*
(make-instance 'hero
:sheet (sdl2:create-texture-from-surface renderer surf)
:faces (create-sprite-faces *nance-tile-defs*)))))
(defparameter +frame-delay+ (round (/ 1000 24)))
(defparameter +action-key+ :scancode-space)
(defun action-key-pressed ()
(print "Action"))
(defun walking-face (dir)
(case dir
(:left :walking-left)
(:right :walking-right)
(:up :walking-up)
(:down :walking-down)))
(defun standing-face (dir)
(case dir
(:left :facing-left)
(:right :facing-right)
(:up :facing-up)
(:down :facing-down)))
(defun facing-p (human dir)
(equal dir
(case (face human)
((:facing-down :walking-down) :down)
((:facing-up :walking-up) :up)
((:facing-left :walking-left) :left)
((:facing-right :walking-right) :right))))
(defun walk-hero (dir)
(unless (facing-p *nance* dir)
(setf (face *nance*) (walking-face dir))
(setf (frame *nance*) 0)))
(defun stop-hero (dir)
(setf (face *nance*)
(standing-face dir))
(setf (frame *nance*) 0))
(defun handle-keydown (keysym)
(let ((key (sdl2:scancode-value keysym)))
(match-key key
(:scancode-left (walk-hero :left))
(:scancode-right (walk-hero :right))
(:scancode-up (walk-hero :up))
(:scancode-down (walk-hero :down)))))
(defun handle-keyup (keysym)
(let ((key (sdl2:scancode-value keysym)))
(match-key key
(+action-key+ (action-key-pressed))
(:scancode-left (stop-hero :left))
(:scancode-right (stop-hero :right))
(:scancode-up (stop-hero :up))
(:scancode-down (stop-hero :down)))))
(defmethod render ((game (eql :game)) renderer)
(sdl2:render-clear renderer)
(render *nance* renderer)
(sdl2:render-present renderer))
(defun main ()
(sdl2:with-init (:everything)
(sdl2:with-window (win :w 800 :h 600 :title "The Price Of A Cup Of Coffee" :flags '(:shown))
(sdl2:with-renderer (renderer win :flags '(:accelerated))
(boot-up renderer)
(sdl2:with-event-loop (:method :poll)
(:keydown (:keysym keysym)
(if (sdl2:scancode= (sdl2:scancode-value keysym) :scancode-escape)
(sdl2:push-event :quit)
(handle-keydown keysym)))
(:keyup (:keysym keysym) (handle-keyup keysym))
(:idle ()
;; update sprites
(update *nance* (sdl2:get-ticks))
;; update tweens
;; render
(render :game renderer)
(sdl2:delay +frame-delay+))
(:quit ()
(free-assets)
t))))))
(defun free-assets ()
(setf (sheet *nance*) nil))
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