moving out outdated js docs

olddocs/js/lessons/pong/activity.md

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+# pong activity
+
+Building a game of pong with sprites.
+
+### ~avatar avatar
+
+### @video td/videos/pong-0
+
+Welcome! This tutorial will teach you how to build a simple pong game using sprites.
+
+### ~
+
+The game works as follow: the user moves a paddle on the left of the screen and a ball bounces on the other side. Let's start by creating the 2 sprites.
+
+```
+let paddle = game.createSprite(0, 2)
+let ball = game.createSprite(4, 2)
+```
+
+Let's make the ball start with an angle.
+
+```
+ball.setDirection(-45)
+```
+
+The user will control the paddle by pressing ``A`` to go up and ``B`` to go down. Let's add ``on button pressed`` event handlers to do that.
+
+```
+input.onButtonPressed(Button.A, () => {
+    paddle.changeYBy(-1)
+})
+input.onButtonPressed(Button.B, () => {
+    paddle.changeYBy(1)
+})
+```
+
+Let's add a ``forever`` loop to start the main game logic.
+
+```
+basic.forever(() => {
+    // Leave the sprite on screen for a little while.
+    basic.pause(400)
+    // Let's move the ball in whatever direction it is currently going.
+    ball.move(1)
+    // The ball might be on the left side of the screen (``x = 0``), let's test for that.
+    if (ball.x() == 0) {
+        // Let's add a little pause to let the user know that the ball is on the side.
+        basic.pause(400)
+        // If the paddle is not at the same ``y`` coordinate, it missed the ball and we can trigger a game over. If not, we add a point to the score.
+        if (paddle.y() != ball.y()) {
+            game.gameOver()
+        } else {
+            game.addScore(1)
+            basic.pause(500)
+        }
+    }
+    // The ball moved and might be on a side, let's make sure it bounces.
+    ball.ifOnEdge_Bounce()
+    // If the ball is on the left side, slide it forward to change slightly the bouncing mechanics.
+    if (ball.x() == 0) {
+        ball.changeXBy(1)
+    }
+})
+```
+

olddocs/js/lessons/pong/quiz-answers.md

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+# pong quiz answers
+
+create the game Pong.
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [pong tutorial](/lessons/pong/tutorial)
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. Create two variables that will keep track of the x-position and y-position of the ball, and assign the variables to their initial values.
+
+<br/>
+
+```
+ballX = 2
+ballY = 1
+```
+
+## 2. Create two variables that keeps track of the velocity (or the speed and direction) of the ball, and assign the variables to their initial values.
+
+<br/>
+
+```
+ballXVelocity = 1
+ballYVelocity = 1
+```
+
+## 3. Write the code that plots the initial position of the paddle and the ball.
+
+<br/>
+
+```
+led.plot(0, paddleY)
+led.plot(ballX, ballY)
+```
+
+## 4. Write the code that moves the paddle up when Button A is pressed. (Don't worry about setting 'game running' to true.)
+
+<br/>
+
+```
+input.onButtonPressed(Button.A, () => {
+    if (paddleNotUp()) {
+        led.unplot(0, paddleY)
+        paddleY = paddleY - 1
+        led.plot(0, paddleY)
+    }
+})
+```
+
+## 5. Write the code that moves the paddle up when Button B is pressed. (Don't worry about setting 'game running' to true.)
+
+<br/>
+
+```
+input.onButtonPressed(Button.A, () => {
+    if (paddleNotDown()) {
+        led.unplot(0, paddleY)
+        paddleY = paddleY + 1
+        led.plot(0, paddleY)
+    }
+})
+```
+
+## 6. Write the code to update the y-velocity. (Hint: look at the function "update y velocity".)
+
+<br/>
+
+```
+if (ballY == 4 || ballY == 0) {
+    ballYVelocity = (-1) * ballYVelocity
+}
+```
+
+## 7. Write the code to move the ball. (Hint: look at the function "move ball".)
+
+<br/>
+
+```
+led.unplot(ballX, ballY)
+ballX = ballX + ballXVelocity
+ballY = ballY + ballYVelocity
+```
+

olddocs/js/lessons/pong/quiz.md

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+# pong quiz
+
+create the game Pong.
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [pong tutorial](/lessons/pong/tutorial)
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. Create two variables that will keep track of the x-position and y-position of the ball, and assign the variables to their initial values.
+
+<br/>
+
+## 2. Create two variables that keeps track of the velocity (or the speed and direction) of the ball, and assign the variables to their initial values.
+
+<br/>
+
+## 3. Write the code that plots the initial position of the paddle and the ball.
+
+<br/>
+
+## 4. Write the code that moves the paddle up when Button A is pressed. (Don't worry about setting 'game running' to true.)
+
+<br/>
+
+## 5. Write the code that moves the paddle up when Button B is pressed. (Don't worry about setting 'game running' to true.)
+
+<br/>
+
+## 6. Write the code to update the y-velocity. (Hint: look at the function "update y velocity".)
+
+<br/>
+
+## 7. Write the code to move the ball. (Hint: look at the function "move ball".)
+
+<br/>
+