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GameMaker Cookbook

GameMaker Cookbook

By : Gardiner
5 (1)
Buy this Book
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GameMaker Cookbook

GameMaker Cookbook

5 (1)
By: Gardiner
Buy this Book

Overview of this book

GameMaker: Studio started off as a tool capable of creating simple games using a drag-and-drop interface. Since then, it has grown to become a powerful instrument to make release-ready games for PC, Mac, mobile devices, and even current-gen consoles. GameMaker is designed to allow its users to develop games without having to learn any of the complex programming languages such as C++ or Java. It also allows redistribution across multiple platforms. This book teaches you to harness GameMaker: Studio’s full potential and take your game development to new heights. It begins by covering the basics and lays a solid foundation for advanced GameMaker concepts. Moving on, it covers topics such as controls, physics, and advanced movement, employing a strategic approach to the learning curve. The book concludes by providing insights into complex concepts such as the GUI, menus, save system, lighting, particles, and VFX. By the end of the book, you will be able to design games using GameMaker: Studio and implement the same techniques in other games you intend to design.
Table of Contents (12 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Sections
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Conventions
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Reader feedback
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Customer support
Free Chapter
1
1. Game Plan – Creating Basic Gameplay
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1. Game Plan – Creating Basic Gameplay
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Introduction
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Animating a sprite
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Moving your player
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Adding projectiles
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Creating hazards
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Programming basic enemies
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Setting up player health and lives
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Creating scoring mechanism
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Creating win/lose scenarios
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2. It's Under Control – Exploring Various Control Schemes
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2. It's Under Control – Exploring Various Control Schemes
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Introduction
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Creating 2D movement
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Adding a Run button
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Making your character jump
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Using a point-and-click interface
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Following the cursor
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Setting up a controller
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Utilizing analogue joystick acceleration
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Adding tap control
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Using swipes
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Moving characters or objects by tilting a device
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3. Let's Move It – Advanced Movement and Layout
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3. Let's Move It – Advanced Movement and Layout
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Introduction
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Dragging onscreen objects
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Dragging objects on a grid
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Moving a character on a grid
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Setting a path
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Creating enemy pathfinding
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Controlling a character with a mouse and keyboard
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4. Let's Get Physical – Using GameMaker's Physics System
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4. Let's Get Physical – Using GameMaker's Physics System
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Introduction
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Creating objects that use physics
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Alternating gravity
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Applying force via magnets
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Creating a moving platform
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Making a rope
5
5. Now Hear This! – Music and Sound Effects
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5. Now Hear This! – Music and Sound Effects
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Introduction
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Importing and playing background music
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Implementing situational sound effects
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Adding sound emitters and listeners
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Adjusting the listener orientation
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Replicating the Doppler effect with emitters
6
6. It's All GUI! - Creating Graphical User Interface and Menus
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6. It's All GUI! - Creating Graphical User Interface and Menus
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Introduction
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Setting up a basic HUD with code
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Making your HUD scalable
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Using the GUI layer in full screen mode with views
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Adding a title screen
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Creating splash pages
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Adding a game over screen
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7. Saving the Day – Saving Game Data
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7. Saving the Day – Saving Game Data
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Introduction
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Creating game settings
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Making a pause screen
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Saving player selection and score
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Encrypting and decrypting save data
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8. Light 'em up! – Enhancing Your Game with Lighting Techniques
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8. Light 'em up! – Enhancing Your Game with Lighting Techniques
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Introduction
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Creating a room with a light switch
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Lighting objects with a spot light
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Changing day to night
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Creating a flashlight
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Making a flickering torch
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9. Particle Man, Particle Man – Adding Polish to Your Game with Visual Effects and Particles
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9. Particle Man, Particle Man – Adding Polish to Your Game with Visual Effects and Particles
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Introduction
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Using particles to simulate kicking up dust
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Simulating rainfall
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Creating an explosion
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Adding screen-shake
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Using slow motion
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10. Hello, World – Creating New Dimensions of Play Through Networking
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10. Hello, World – Creating New Dimensions of Play Through Networking
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Introduction
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Basic networking
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Online play
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Connecting a client to a server
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Setting up asynchronous play for a turn-based game
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Index
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Index

Making your HUD scalable

Have you ever played a game that didn't quite fit your screen? It's frustrating, isn't it? In a perfect world, your game would work perfectly on any device. Since that's not the case, however, you'll need to make some adjustments if you want to create a game that will fit at least most devices. Let's see what it takes to scale your game to fit screens of different sizes and ratios.

Getting ready

For this recipe, we'll use the game that we created previously. Open the project file and follow the given steps, but make sure Allow the player to resize the game window is activated and Keep aspect ratio is selected under Global Game Settings.

How to do it

  1. Open obj_display.

  2. Under the DrawGUI event, open the code block.

  3. Enter the following code above the existing code:

    display_w = 1024;
display_h = 768;
ratio = display_get_width()/display_get_height();
if ratio > 1
{
    adjust_w = display_h * ratio;
    adjust_h = display_h;
    display_set_gui_size(display_h * ratio, display_h...

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