Book Image

L÷VE for Lua Game Programming

By : AKINLAJA DAMILARE JOSHUA
1 (1)
Book Image

L÷VE for Lua Game Programming

1 (1)
By: AKINLAJA DAMILARE JOSHUA

Overview of this book

L?ñVE is a game development framework for making 2D games using the Lua programming language. L?ñVE is totally free, and can be used in anything from friendly open-source hobby projects, to closed-source commercial ones. Using the Lua programming framework, one can use L?ñVE2D to make any sort of interesting games. L?ñVE for Lua Game Programming will quickly and efficiently guide you through how to develop a video game from idea to prototype. Even if you are new to game programming, with this book, you will soon be able to create as many game titles as you wish without stress. The L?ñVE framework is the quickest and easiest way to build fully-functional 2D video games. It leverages the Lua programming language, which is known to be one of the easiest game development languages to learn and use. With this book, you will master how to develop multi-platform games for Windows, Linux, and Mac OS X. After downloading and installing L?ñVE, you will learn by example how to draw 2D objects, animate characters using sprites, and how to create game physics and game world maps. L?ñVE for Lua Game Programming makes it easier and quicker for you to learn everything you need to know about game programming. If you're interested in game programming, then this book is exactly what you've been looking for.
Table of Contents (15 chapters)

Head-Up Display (HUD)


The HUD can be described as the graphical interface for displaying the game information such as life stat, player score, and so on.

Menu HUD

Here we'll simply create a "Start Game" and "Quit Game" button with text, but before we do that we have to set up game states— a type of state machine that tells the various modes of a game whether the game is at the menu mode or is currently playing (game-play mode).

In the love.load() function, set a game state as menu, so whenever the game loads its first state is the menu.

function love.load()
gamestate = "menu"
love.graphics.setBackgroundColor(225, 153, 0)
-- load the level and bind the variable map
  LoadTileMap("tilemap.tmx")
end

Next, we are setting another gamestate condition; game should update and draw only when game state is "playing":

--Update them
function love.update(dt)
  if gamestate == "playing" then
    bump.collide()
    PlayerMovement(dt)
    EnemyUpdate(dt)
    CoinUpdate(dt)
    DiamondUpdate(dt)
    LifeUpdate...