X-Git-Url: https://code.consxy.com/gitweb/gitweb.cgi?p=clnl;a=blobdiff_plain;f=src%2Fmain%2Finterface.lisp;h=88dfac51c42b16b38a3120714a80435dc9a31076;hp=27d5eed3ebec4e1b33a25fc5c2e9c2cc4e41850a;hb=v0.1.0;hpb=e4737223ae0336868aecd6af14ac09947655fde6

diff --git a/src/main/interface.lisp b/src/main/interface.lisp
index 27d5eed..88dfac5 100644
--- a/src/main/interface.lisp
+++ b/src/main/interface.lisp
@@ -1,12 +1,192 @@
 (in-package #:clnl-interface)
 
-(defvar *patch-size* 13d0)
-(defvar *world-dims* '(:xmin -5 :xmax 5 :ymin -5 :ymax 5))
+(defvar *turtle-lists* nil)
+(defvar *patch-list* nil)
 
-(defvar *turtle-list* nil)
-
-; It may be useful to keep windows around
 (defvar *glut-window-opened* nil)
+(defvar *dimensions* nil)
+
+(defvar *default-shapes* nil)
+
+; For now, shapes can live in here
+; header is
+; * name <like default>
+; * rotatable (equal to "true" if yes)
+;
+; then after, the elements are like so:
+;
+; filled == filled in (always for now, ha)
+; marked == use the turtle color instead of a color
+; polygon -> Polygon <color> <filled> <marked> <alternating x y coords>
+; circle -> Circle <color> <filled> <marked> <left> <top> <diameter> ; here, the left and top are NOT the center
+; rectangle -> Rectangle <color> <filled> <marked> <left> <top> <right> <bottom>
+;
+; then ends with an empty string
+
+(defun parse-circle (sections)
+ (list :circle
+  :color (parse-integer (car sections))
+  :filled (string= (nth 1 sections) "true")
+  :marked (string= (nth 2 sections) "true")
+  :left (parse-integer (nth 3 sections))
+  :top (parse-integer (nth 4 sections))
+  :diameter (parse-integer (nth 5 sections))))
+
+(defun parse-rectangle (sections)
+ (list
+  :rectangle
+  :color (parse-integer (car sections))
+  :filled (string= (nth 1 sections) "true")
+  :marked (string= (nth 2 sections) "true")
+  :left (parse-integer (nth 3 sections))
+  :top (parse-integer (nth 4 sections))
+  :right (parse-integer (nth 5 sections))
+  :bottom (parse-integer (nth 6 sections))))
+
+(defun parse-polygon (sections)
+ (labels
+  ((parse-points (sections)
+    (when sections
+     (cons
+      (list (- 300 (parse-integer (car sections))) (parse-integer (cadr sections)))
+      (parse-points (cddr sections))))))
+  (list
+   :polygon
+   :color (parse-integer (car sections))
+   :filled (string= (nth 1 sections) "true")
+   :marked (string= (nth 2 sections) "true")
+   :coords (parse-points (nthcdr 3 sections)))))
+
+(defun parse-shape (str)
+ (labels
+  ((parse-element (line)
+    (let
+     ((sections (cl-ppcre:split " " line)))
+     (cond
+      ((string= (car sections) "Circle") (parse-circle (cdr sections)))
+      ((string= (car sections) "Rectangle") (parse-rectangle (cdr sections)))
+      ((string= (car sections) "Polygon") (parse-polygon (cdr sections))))))
+   (parse-elements ()
+    (let
+     ((line (read-line str nil)))
+     (when (and line (string/= line ""))
+      (cons
+       (parse-element line)
+       (parse-elements))))))
+  (let
+   ((next-line (read-line str nil)))
+   (when next-line
+    (list
+     :name next-line
+     :rotatable (string= "true" (read-line str))
+     :rgb (read-line str) ; this is ignored for now, I think
+     :elements (parse-elements))))))
+
+; Clipping ears algorithm.  This can be slow due to the fact that it will only be run once.
+(defun triangulate (points &optional (ccw :unknown))
+ (labels
+  ((tri-is-ccw (x y z)
+    (< 0 (- (* (- (car y) (car x)) (- (cadr z) (cadr x))) (* (- (car z) (car x)) (- (cadr y) (cadr x))))))
+   (tri-is-concave (x y z) (if (tri-is-ccw x y z) (not ccw) ccw))
+   (poly-is-ccw (points &optional cur-tri)
+    (cond
+     ((not cur-tri)
+      (poly-is-ccw (append points (list (car points))) (list (car (last points)) (car points) (cadr points))))
+     ((eql (length points) 2)
+      (apply #'tri-is-ccw cur-tri))
+     ((or
+       (< (car (cadr points)) (car (cadr cur-tri)))
+       (and
+        (= (car (cadr points)) (car (cadr cur-tri)))
+        (< (cadr (cadr points)) (cadr (cadr cur-tri)))))
+      (poly-is-ccw (cdr points) (subseq points 0 3)))
+     (t (poly-is-ccw (cdr points) cur-tri))))
+   (point-in-tri (x y z p)
+    ; Barycentric system test
+    (let*
+     ((denom (+ (* (- (cadr y) (cadr z)) (- (car x) (car z))) (* (- (car z) (car y)) (- (cadr x) (cadr z)))))
+      (a (/ (+ (* (- (cadr y) (cadr z)) (- (car p) (car z))) (* (- (car z) (car y)) (- (cadr p) (cadr z)))) denom))
+      (b (/ (+ (* (- (cadr z) (cadr x)) (- (car p) (car z))) (* (- (car x) (car z)) (- (cadr p) (cadr z)))) denom))
+      (c (- 1 a b)))
+     (and (<= 0 a 1) (<= 0 b 1) (<= 0 c 1))))
+   (no-points-in-tri (tri points)
+    (every (lambda (point) (not (point-in-tri (car tri) (cadr tri) (caddr tri) point))) points))
+   (tri-is-actually-line (x y z)
+    (zerop (+ (* (- (cadr y) (cadr z)) (- (car x) (car z))) (* (- (car z) (car y)) (- (cadr x) (cadr z)))))))
+  (cond
+   ((not (find :end points)) (triangulate (append points (list :end)) ccw))
+   ((< (length points) 4) (error "Must have at least 3 points..."))
+   ((= (length points) 4) (list (remove :end points)))
+   ((eql ccw :unknown) (triangulate points (poly-is-ccw (remove :end points))))
+   ((eql :end (car points)) (error "This polygon may not be triangulateable"))
+   (t
+    (let*
+     ((endless (remove :end points))
+      (tri (subseq endless 0 3)))
+     (cond
+      ((apply #'tri-is-actually-line tri)
+       (triangulate (cons (car endless) (cddr endless)) ccw))
+      ((apply #'tri-is-concave tri)
+       (triangulate (append (cdr points) (list (car points))) ccw))
+      ((no-points-in-tri tri (nthcdr 3 endless))
+       (cons tri (triangulate (cons (car endless) (cddr endless)) ccw)))
+      (t (triangulate (append (cdr points) (list (car points))) ccw))))))))
+
+(defun element->gl-list (shape)
+ (progn
+  (when (not (getf (cdr shape) :marked))
+   (gl:push-attrib :all-attrib-bits)
+   (gl:color
+    (/ (ash (ldb (byte 24 0) (getf (cdr shape) :color)) -16) 255)
+    (/ (ash (ldb (byte 16 0) (getf (cdr shape) :color)) -8) 255)
+    (/ (ldb (byte 8 0) (getf (cdr shape) :color)) 255)))
+  (gl:begin :triangles)
+  (case (car shape)
+   (:polygon
+    (mapcar
+     (lambda (point) (gl:vertex (car point) (cadr point) 0))
+     (apply #'append (triangulate (getf (cdr shape) :coords)))))
+   (:rectangle
+    (mapcar
+     (lambda (point) (gl:vertex (car point) (cadr point) 0))
+     (apply #'append
+      (triangulate
+       (list
+        (list (- 300 (getf (cdr shape) :left)) (getf (cdr shape) :top))
+        (list (- 300 (getf (cdr shape) :right)) (getf (cdr shape) :top))
+        (list (- 300 (getf (cdr shape) :right)) (getf (cdr shape) :bottom))
+        (list (- 300 (getf (cdr shape) :left)) (getf (cdr shape) :bottom)))))))
+   (:circle
+    (mapcar
+     (lambda (point) (gl:vertex (car point) (cadr point) 0))
+     (apply #'append
+      (triangulate
+       (loop
+        :repeat 360
+        :with c := (strictmath:cos (strictmath:to-radians 1))
+        :with s := (strictmath:sin (strictmath:to-radians 1))
+        :with r := (/ (getf (cdr shape) :diameter) 2)
+        :with left := (getf (cdr shape) :left)
+        :with top := (getf (cdr shape) :top)
+        :for n := 0 :then x
+        :for x := r :then (- (* c x) (* s y))
+        :for y := 0 :then (+ (* s n) (* c y))
+        :collect (list (- 300 (+ (+ x left) r)) (+ (+ y top) r))))))))
+  (gl:end)
+  (when (not (getf (cdr shape) :marked))
+   (gl:pop-attrib))))
+
+(defun parse-shapes (str)
+ (let
+  ((shape (parse-shape str)))
+  (when shape (cons shape (parse-shapes str)))))
+
+(defun default-shapes ()
+ (with-open-file (str "resources/defaultshapes") (parse-shapes str)))
+
+(eval-when (:load-toplevel)
+ (when (probe-file "resources/defaultshapes")
+  (setf *default-shapes* (default-shapes))))
 
 (defvar *colors*
  '((140 140 140) ; gray       (5)
@@ -37,19 +217,47 @@
  (gl:clear :color-buffer-bit :depth-buffer-bit)
  (gl:matrix-mode :projection)
  (gl:load-identity)
- (gl:ortho -71 71 -71 71 1 5000)
+ (gl:ortho
+  (floor (* (- (getf *dimensions* :xmin) 0.5) (patch-size)))
+  (floor (* (+ (getf *dimensions* :xmax) 0.5) (patch-size)))
+  (floor (* (- (getf *dimensions* :ymin) 0.5) (patch-size)))
+  (floor (* (+ (getf *dimensions* :ymax) 0.5) (patch-size)))
+  0 5000)
  (gl:matrix-mode :modelview)
  (gl:load-identity)
- (mapcar
-  (lambda (turtle)
-   (let
-    ((color (nl-color->rgb (getf turtle :color))))
-    (gl:color (car color) (cadr color) (caddr color)))
-   (gl:with-pushed-matrix
-    (gl:translate (* (getf turtle :xcor) *patch-size*) (* (getf turtle :ycor) *patch-size*) 0)
-    (gl:rotate (getf turtle :heading) 0 0 -1)
-    (gl:call-list *turtle-list*)))
-  (clnl-nvm:current-state))
+ (destructuring-bind (turtles patches) (clnl-nvm:current-state)
+  (mapcar
+   (lambda (patch)
+    (let
+     ((color (nl-color->rgb (getf patch :color))))
+     (gl:color (car color) (cadr color) (caddr color)))
+    (gl:with-pushed-matrix
+     (gl:translate (* (getf patch :xcor) (patch-size)) (* (getf patch :ycor) (patch-size)) 0)
+     (gl:translate (floor (* -.5d0 (patch-size))) (floor (* -.5d0 (patch-size))) 0)
+     (gl:scale (patch-size) (patch-size) 1)
+     (gl:call-list *patch-list*)))
+   patches)
+  (mapcar
+   (lambda (turtle)
+    (let
+     ((color (nl-color->rgb (getf turtle :color))))
+     (gl:color (car color) (cadr color) (caddr color)))
+    (mapcar
+     (lambda (x-modification y-modification)
+      (gl:with-pushed-matrix
+       (gl:translate (* (getf turtle :xcor) (patch-size)) (* (getf turtle :ycor) (patch-size)) 0)
+       (gl:translate x-modification y-modification 0)
+       (let
+        ((turtle-list (find (getf turtle :shape) *turtle-lists* :test #'string= :key #'car)))
+        (when turtle-list
+         (when (second turtle-list)
+          (gl:rotate (getf turtle :heading) 0 0 -1))
+         (gl:scale (patch-size) (patch-size) 1)
+         (gl:scale (getf turtle :size) (getf turtle :size) 1)
+         (gl:call-list (third turtle-list))))))
+     (list 0 (1- (world-width-in-pixels)) (- (1- (world-width-in-pixels))) 0 0)
+     (list 0 0 0 (1- (world-height-in-pixels)) (- (1- (world-height-in-pixels))))))
+   turtles))
  (gl:flush))
 
 (defun display ()
@@ -71,19 +279,59 @@
 (cffi:defcallback close-func :void () (close-func))
 (cffi:defcallback reshape :void ((width :int) (height :int)) (reshape width height))
 
-(defun set-turtle-list ()
- (setf *turtle-list* (gl:gen-lists 1))
- (gl:with-new-list (*turtle-list* :compile)
-  (gl:rotate 180 0 0 -1)
-  (gl:scale (* (/ 1d0 300d0) 13) (* (/ 1d0 300d0) 13) 1)
-  (gl:translate -150 -150 -4.0)
+(defun set-turtle-lists ()
+ (setf
+  *turtle-lists*
+  (mapcar
+   (lambda (shape)
+    (let
+     ((turtle-list
+       (list
+        (getf shape :name)
+        (getf shape :rotatable)
+        (gl:gen-lists 1))))
+     (gl:with-new-list ((third turtle-list) :compile)
+      (gl:rotate 180d0 0d0 0d0 -1d0)
+      (gl:scale (/ 1d0 300d0) (/ 1d0 300d0) 1)
+      (gl:translate -150d0 -150d0 -0.0d0)
+      (mapcar #'element->gl-list (getf shape :elements)))
+     turtle-list))
+   (or *default-shapes* (default-shapes)))))
+
+(defun set-patch-list ()
+ (setf *patch-list* (gl:gen-lists 1))
+ (gl:with-new-list (*patch-list* :compile)
   (gl:begin :polygon)
-  (gl:vertex 150 5 0)
-  (gl:vertex 40 250 0)
-  (gl:vertex 150 205 0)
-  (gl:vertex 260 250 0)
+  (gl:vertex 0 0 0)
+  (gl:vertex 0 1 0)
+  (gl:vertex 1 1 0)
+  (gl:vertex 1 0 0)
   (gl:end)))
 
+(defun initialize (&key dims)
+ "INITIALIZE &key DIMS => RESULT
+
+  DIMS: (:xmin XMIN :xmax XMAX :ymin YMIN :ymax YMAX :patch-size PATCH-SIZE)
+
+ARGUMENTS AND VALUES:
+
+  RESULT: undefined
+  XMIN: An integer representing the minimum patch coord in X
+  XMAX: An integer representing the maximum patch coord in X
+  YMIN: An integer representing the minimum patch coord in Y
+  YMAX: An integer representing the maximum patch coord in Y
+  PATCH-SIZE: A double representing the size of the patches in pixels
+
+DESCRIPTION:
+
+  This is where the initialization of the interface that sits behind
+  the interface lives.  From here, one can go into headless or running
+  mode, but for certain things this interface will still need to act,
+  and also allows for bringing up and taking down of visual elements."
+ (setf *dimensions* dims)
+ (when *glut-window-opened*
+  (cl-glut:reshape-window (world-width-in-pixels) (world-height-in-pixels))))
+
 (defun run ()
  "RUN => RESULT
 
@@ -100,11 +348,11 @@ DESCRIPTION:
  ; I do this because I don't know who or what in the many layers
  ; is causing the floating point errors, but I definitely don't
  ; want to investigate until simply ignoring them becomes a problem.
- (sb-int:with-float-traps-masked (:invalid)
+ (sb-int:with-float-traps-masked (:invalid :inexact :divide-by-zero :overflow :underflow)
   (cl-glut:init)
   (cl-glut:init-window-size
-   (floor (* *patch-size* (1+ (- (getf *world-dims* :xmax) (getf *world-dims* :xmin)))))
-   (floor (* *patch-size* (1+ (- (getf *world-dims* :ymax) (getf *world-dims* :ymin))))))
+   (world-width-in-pixels)
+   (world-height-in-pixels))
   (cl-glut:init-display-mode :double :rgba)
   (cl-glut:create-window "CLNL Test Window")
   (setf *glut-window-opened* t)
@@ -113,9 +361,18 @@ DESCRIPTION:
   (glut:reshape-func (cffi:callback reshape))
   (cl-glut:idle-func (cffi:get-callback 'idle))
   (cl-glut:close-func (cffi:get-callback 'close-func))
-  (set-turtle-list)
+  (set-turtle-lists)
+  (set-patch-list)
   (cl-glut:main-loop)))
 
+(defun patch-size () (getf *dimensions* :patch-size))
+
+(defun world-width-in-pixels ()
+ (floor (* (patch-size) (1+ (- (getf *dimensions* :xmax) (getf *dimensions* :xmin))))))
+
+(defun world-height-in-pixels ()
+ (floor (* (patch-size) (1+ (- (getf *dimensions* :ymax) (getf *dimensions* :ymin))))))
+
 (defun export-view ()
  "EXPORT-VIEW => IMAGE-DATA
 
@@ -139,15 +396,23 @@ DESCRIPTION:
    (cl-glut:init-window-size 1 1)
    (cl-glut:create-window "CLNL Test Window")
    (gl:clear-color 0 0 0 1)
-   (set-turtle-list)
+   (set-turtle-lists)
+   (set-patch-list)
    (setf *glut-window-opened* t))
   (let
    ((fbo (first (gl:gen-framebuffers 1)))
     (render-buf (first (gl:gen-renderbuffers 1)))
-   ;(width (floor (* *patch-size* (1+ (- (getf *world-dims* :xmax) (getf *world-dims* :xmin))))))
-   ;(height (floor (* *patch-size* (1+ (- (getf *world-dims* :ymax) (getf *world-dims* :ymin))))))
-    (width 143)  ; Hard coded for now, yay v1 (if you see this comment in a year, please cry for me)
-    (height 143))
+   ;(width
+   ; (floor (* (patch-size) (1+ (-
+   ;                             (getf *dimensions* :ymax)
+   ;                             (getf *dimensions* :ymin))))))
+   ;(height
+   ; (floor (* (patch-size) (1+ (- (getf *world-dims* :xmax) (getf *world-dims* :xmin))))))
+   ; (floor (* (patch-size) (1+ (-
+   ;                            (getf *dimensions* :xmax)
+   ;                            (getf *dimensions* :xmin)))))
+    (width (world-width-in-pixels))  ; Hard coded for now, yay v1 (if you see this comment in a year, please cry for me)
+    (height (world-height-in-pixels)))
    (gl:bind-framebuffer :framebuffer fbo)
    (gl:bind-renderbuffer :renderbuffer render-buf)
    (gl:renderbuffer-storage :renderbuffer :rgba8 width height)