[programming problem] [scratch Level 2] 2019.09 make bat Challenge Game

Make bat clearance game

1. preparation

（1） Import bat characters 、 Draw obstacles separately 、 Earth character .

2. Function realization

The effect that needs to be achieved ： Use the space bar on the keyboard to control the bat to fly up , When encountering obstacles or the earth , Game over , Otherwise score .

（1） Bat character ： When you click on the green flag , Bats fly from top to bottom , When you press the space bar , Bats fly up , When encountering obstacles or the earth , Stop all ;

（2） Obstacle role ： Obstacles keep moving from left to right , After the obstacle reaches the rightmost end , Back to the beginning , Right movement , Repeat the process ;

（3） Earth character ： Move to the top .

3. Design ideas and implementation

（1） Role analysis

• role ： Bat Bat, obstacle 、 The earth

（2） Background analysis

• background ： Default background , unchanged

（3） Introduction to the building blocks used

a. Sports

• Put the character