initial

t.lisp

@@ -0,0 +1,45 @@
+(load "snek/src/load")
+
+(setf *random-state* (make-random-state t))
+
+(defvar *file* "out.png")
+(defvar *size* 1000)
+
+(defmacro rand () `(random 1.0))
+
+(defun rand-rgba ()
+  (list (rand) (rand) (rand) (rand)))
+
+(defun main ()
+  (let ((mid (* *size* .5))
+        (repeat (random 100))
+        (grains (random 10))
+        (itt    (random 5000))
+        (sand   (sandpaint* *size* :active (rand-rgba) :bg (rand-rgba))))
+    (loop for i in (linspace 100 900 repeat)
+          for j from 1 to repeat do
+      (print j)
+      (let ((snk (snek*))
+            (va (list 0 0))
+            (vb (list 0 0))
+            (p1 (list 100 i))
+            (p2 (list 900 i)))
+
+        (loop for k from 1 to itt do
+          (let ((v1 (insert-vert (l-on-line k itt p1 p2) into snk))
+                (v2 (insert-vert (ladd va (l-on-line k itt p1 p2)) into snk)))
+
+            (setf va (ladd va (l-rand-in-circle (* 0.7 j))))
+            (setf vb (ladd vb (l-rand-in-circle (* 0.001 j))))
+
+            (with-snek (snk)
+              (with-all-verts (snk v)
+                (move-vert v (ladd (l-rand-in-circle 0.1) vb)))
+              (join-verts v1 v2))
+
+            (sandpaint-edges sand snk grains)
+            (sandpaint-verts sand snk)))))
+
+        (sandpaint-save sand *file*)))
+
+(main)