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Mastering LibGDX Game Development

By : Patrick Hoey
Book Image

Mastering LibGDX Game Development

By: Patrick Hoey

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Mastering LibGDX Game Development
Patrick Hoey
Nov, 2015 | 420 pages
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Table of Contents (18 chapters)
Mastering LibGDX Game Development
Mastering LibGDX Game Development
Credits
Credits
About the Author
About the Author
Acknowledgments
Acknowledgments
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
As the Prophecy Foretold, a Hero is Born
As the Prophecy Foretold, a Hero is Born
Understanding the fundamentals of role-playing games
Technologies used when developing a role-playing game
Understanding the basics of a game architecture
Understanding the high-level component layout of LibGDX
Understanding the application lifecycle of LibGDX
Setting up your development environment
Understanding the build environment and project structure
Running the default demo project
See also
Summary
2
Welcome to the Land of BludBourne
Welcome to the Land of BludBourne
Creating and editing tile-based maps
Implementing the starter classes for BludBourne
Implementing asset management with loading textures and tile-based maps
Implementing the camera and displaying a map in the render loop
Implementing map management with spawn points and a portal system
Implementing your player character with animation
Implementing input handling for player character movement
Summary
3
It's Pretty Lonely in BludBourne…
It's Pretty Lonely in BludBourne…
The Entity Component System design pattern
Map design
Summary
4
Where Do I Put My Stuff?
Where Do I Put My Stuff?
Inventory and HUD layouts with skins
Save and load game profiles
Summary
5
Time to Breathe Some Life into This Town
Time to Breathe Some Life into This Town
Speech windows with dialog trees
Shop store UI with items and money transactions
Summary
6
So Many Quests, So Little Time…
So Many Quests, So Little Time…
The theory of dependency graphs
The dependency graph implementation
QuestUI
The steps involved in creating a quest
Summary
7
Time to Show These Monsters Who's the Boss
Time to Show These Monsters Who's the Boss
The battle system implementation
BattleState
BattleUI
LevelTable
GameOverScreen
Summary
8
Oh, No! Looks Like Drama!
Oh, No! Looks Like Drama!
Class diagram overview
Sound and music
Creating cutscenes
Summary
9
Time to Set the Mood
Time to Set the Mood
Screen transitions
Camera shake
Static lighting
Day-to-night cycle
Particle effects
Summary
10
Prophecy Fulfilled, Our Hero Awaits the Next Adventure
Prophecy Fulfilled, Our Hero Awaits the Next Adventure
Digital distribution platforms
Obfuscating the save game profiles
Creating an executable JAR
Native launchers
Obfuscating the packaged JAR
Debugging tips
Testing builds before release
Summary
Index
Index

Implementing the camera and displaying a map in the render loop

The next class to review is MainGameScreen, which can be found at core/src/com/packtpub/libgdx/bludbourne/screens/MainGameScreen.java. The MainGameScreen class is the first Screen implementation for our game and represents the main gameplay screen used to display the game map, player avatar, and any UI components.

MainGameScreen

The class diagram for MainGameScreen (Figure 8) shows all the attributes and method signatures for our first pass:

Figure 8

The import packages for MainGameScreen are as follows:

package com.packtpub.libgdx.bludbourne.screens;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Screen;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.g2d.Sprite;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.maps.MapLayer;
import com.badlogic.gdx.maps.MapObject;
import com.badlogic.gdx.maps.objects.RectangleMapObject...
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