Scratch Programming Playground: Learn to Program by Making Cool Games

Scratch Programming Playground: Learn to Program by Making Cool Games — page 5
The Complete Program 28 Turbo Mode 28 Version 2 0 Rainbow Triangles 29 Version 3 0 Two Rainbow Lines 30 Version 4 0 You Decide 31 Summary 32 Review Questions 33 3 Maze Runner 35 Sketch Out the Design 36 A Make the Cat Walk Around 38 Explore X and Y-Coordinates 38 1 Add Movement Code to the Player Sprite 40 2 Duplicate the Movement Code for the Cat Sprite 41 B Make the Maze Levels 43 3 Download the Maze Images 43 4 Change the Backdrop 43 5 Start at the First Maze 43 C Keep the Cat from Walking Through Walls 44 6 Check Whether the Cat Is Touching the Walls 44 D Make a Goal at the End of the Maze 46 7 Create the Apple Sprite 47 8 Detect When the Player Reaches the Apple 47 9 Add the Broadcast Handling Code to the Maze Sprite 49 The Complete Program 49 Version 2 0 Two-Player Mode 51 Duplicate the Apple Sprite 51 Modify the Apple2 Sprite’s Code 52 Duplicate the Orange Cat Sprite 52 Modify the Code for the Blue Cat Sprite 53 Go Back to the Starting Position 55 Version 3 0 Traps 56 Draw a new Sprite for the Traps 56 Create a Second Costume for the Traps 57 Add Cloning Code for the Traps 58 Modify the Orange Cat Code 59 Copy the Code from Orange Cat to Blue Cat 61 Cheat Mode Walk Through Walls 62 Add the Walk-Through-Walls Code to Orange Cat 63 Add the Walk-Through-Walls Code to Blue Cat 63 Summary 64 Review Questions 65 x COnTEnTS In DETAIL