Fix endpoint for sliders

Author: drewyoungren

media/src/objects/Curve.svelte

@@ -171,7 +171,7 @@
         } else {
             tau += dt / (B - A);
         }
-        tau %= 1;
+        if (tau > 1) tau %= 1;
         // const T = A + (B - A) * tau;
 
         // uncomment this if we want aVal to be animated:

media/src/objects/Function.svelte

@@ -609,7 +609,7 @@
 
     const update = function (dt) {
         tau += dt / (t1 - t0);
-        tau %= 1;
+        if (tau > 1) tau %= 1;
 
         evolveSurface(tVal);
 
@@ -799,26 +799,25 @@
     boxMesh.add(boxMeshEdges);
 
     const updateBoxes = function () {
-        const { a, b, c, d} = params;
+        const { a, b, c, d } = params;
         try {
-         [
+            [
                 math.evaluate(a),
                 math.evaluate(b),
                 math.evaluate(c),
                 math.evaluate(d),
             ];
         } catch (e) {
-            console.error("Can't show integral boxes on nonconstant bounds",e);
+            console.error("Can't show integral boxes on nonconstant bounds", e);
             return;
         }
 
         const [A, B, C, D] = [
-                math.evaluate(a),
-                math.evaluate(b),
-                math.evaluate(c),
-                math.evaluate(d),
-            ];
-
+            math.evaluate(a),
+            math.evaluate(b),
+            math.evaluate(c),
+            math.evaluate(d),
+        ];
 
         // const t = T0 + tau * (T1 - T0);
 

media/src/objects/Point.svelte

@@ -215,7 +215,7 @@
 
     const update = (dt = 0) => {
         tau += dt / (t1 - t0);
-        tau %= 1;
+        if (tau > 1) tau %= 1;
         updatePoint(tVal);
     };
     // Start animating if animation changes (e.g. animating scene published)

media/src/objects/Surface.svelte

@@ -590,7 +590,7 @@
 
     const update = function (dt = 0) {
         tau += dt / (t1 - t0);
-        tau %= 1;
+        if (tau > 1) tau %= 1;
 
         if (isDynamic) evolveSurface(tVal);
         if (isRhoDynamic) {

media/src/objects/Vector.svelte

@@ -256,7 +256,7 @@
         const B = math.parse(t1).evaluate();
 
         tau += dt / (B - A);
-        tau %= 1;
+        if (tau > 1) tau %= 1;
 
         updateVector(tVal);
     };

media/src/stories/FluxIntegral.svelte

@@ -46,7 +46,7 @@
                 // const currentTime = $tickTock;
                 last = last || $tickTock;
                 tau += $tickTock - last;
-                tau %= 1;
+                if (tau > 1) tau %= 1;
                 updateTau(tau);
                 last = $tickTock;
             }