February 2014
Intermediate to advanced
330 pages
7h 11m
English
Content preview from Scratch 2.0 Game Development Hotshot
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Adding scripts to Spaceship Ammo and Enemy Ammo
The Spaceship sprite fights enemy sprites with Spaceship Ammo, and enemy sprites attack with the Enemy Ammo sprites.
Prepare for lift off
Spaceship Ammo has one local variable, speed. The speed variable is how fast this sprite moves. Upon creation, it flies out of the Spaceship sprite and moves straight up until it hits an enemy or the top edge of the Stage.
The Enemy Ammo sprite is very similar to the Spaceship Ammo sprite and is different only in direction, hit target (the sprites it can hurt), and costumes.
Enemy Ammo moves down, but Spaceship Ammo moves up. Also, Enemy Ammo can hit the Spaceship and ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.