Review: Baseball Catching

Whether a baseball is thrown or hit, one thing is certain: someone is trying to catch it. To represent this, build a simple game where the goal is to catch the baseballs that fly across the screen.

Student Task #1: Build a Mitt

Start the project, and create a mitt for the player to control.

1. Create a new project in Arcade
2. Create a new sprite representing a mitt
3. Change the variable name from ||variables:mySprite|| to ||variables:mitt||, and the ||sprites:kind|| from Player to Mitt
4. Make ||variables:mitt|| move based off the direction keys using ||controller:move sprite with buttons||
5. Make ||variables:mitt|| stay in screen using ||sprites:set mySprite stay in screen on||

Student Task #2: Throwing Balls

Add balls for the player to attempt to collect.

1. Get an ||game:on game update every 500 ms|| event
2. Create a ||sprites:projectile from side|| representing a baseball inside the ||game:on game update every|| event and change the variable name from ||variables:projectile|| to ||variables:baseball||
3. Make ||variables:baseball|| move randomly in the x and y directions using ||math:pick random 0 to 10|| for the initial ||sprites:vx|| and ||sprites:vy||: make the range from -50 and 50
4. Set ||variables:baseball|| to ||sprites:kind|| Baseball

Student Task #3: Gameplay

Add gameplay elements that make the game interesting to play.

1. Add a ||info:countdown|| of 20 seconds in the ||loops:on start||
2. Create an ||sprites:on overlap|| event between sprites of ||sprites:kind|| Mitt and sprites of ||sprites:kind|| Baseball
3. Inside the ||sprites:on overlap|| event, ||sprites:destroy|| the Baseball, and add 1 to the score
4. Make the Mitt ‘bounce’ when in the overlap event, by
   • changing Mitt‘s y by -5
   • ||loops:pause|| for 100 ms
   • changing Mitt‘s y by 5