Update

projects/projectile/index.js

@@ -1,14 +1,17 @@
 
 let t=0;
 let v0=50
-let x0=0
+let x0=50
 let y0=50
 let g=9.81
 
 let projectile= function (node){
 
     node.setup = function() {
-        node.createCanvas(width, height);
+        c=node.createCanvas(width, height);
+        v0t=node.createElement('p', '');
+        katex.render("v_0", v0t.elt);
+        v0t.elt.style.color="#b4b4b4"
     };
     let width=800
     let height=300
@@ -25,16 +28,29 @@ let projectile= function (node){
     }
 
     node.draw = function() {
-        node.background(50);
+        node.background(70);
         node.noStroke();
         dots.forEach((elt)=>{node.ellipse(elt[0],elt[1],5,5);})
+        node.fill(255)
         node.ellipse(x(t),y(t),20,20);
+        node.fill(255)
         dots.push([x(t),y(t)])
         if(t>50 || y(t)>height){
             node.noLoop()
         }
-        t+=0.06
+        t+=0.05
+        node.push()
+        node.fill(22)
+        node.stroke(180)
+        m=draw_arrow(node,x0,height-y0,x0+v0,height-y0-v0)
+        console.log(m.y)
+        v0t.position(c.position().x+m.x,c.position().y+m.y)
+        node.pop()
     };
+    node.windowResized = function(){
+        v0t.position(c.position().x+m.x,c.position().y+m.y)
+
+    }
 };
 
 refresh=function(){