Better animate

examples/animate.lisp

@@ -1,9 +1,9 @@
 ;
 (clear)
 ;
-(def seg-count 20)
+(def seg-count 50)
 ; 
-(def center 
+(def frame-middle 
   (div 
     (of 
       (frame) :h) 2)) 
@@ -11,7 +11,19 @@
 (def seg-width 
   (div 
     (of 
-      (frame) :w) count)) 
+      (frame) :w) seg-count)) 
+;
+(defn elevation 
+  (i) 
+  (add 
+    (mul 
+      (sin 
+        (add 
+          (time 0.001) 
+          (div i 5))) 
+      (div 
+        (of 
+          (frame) :h) 5)) frame-middle))
 ;
 (defn draw-dash 
   (i) 
@@ -20,15 +32,19 @@
       (mul 
         (sub i 1) seg-width)) 
     (def y 
-      (add 
-        (mul 
-          (sin 
-            (add 
-              (time 0.01) i)) 15) center)) 
+      (elevation i)) 
     (stroke 
       (line 
-        (pos x y) 
+        (pos x 
+          (elevation 
+            (sub i 1))) 
         (pos 
-          (add x seg-width) y)) 4 "red")))
+          (add x seg-width) 
+          (elevation i))) 4 
+      (gradient 
+        (50 0 
+          (of 
+            (frame) :w) 0) 
+        ("rgba(255,255,255,0)" "white" "#72dec2" "red")))))
 ;
 (times seg-count draw-dash)