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L÷VE for Lua Game Programming

You're reading from   L÷VE for Lua Game Programming If you want to create 2D games for Windows, Linux, and OS X, this guide to the L?ñVE framework is a must. Written for hobbyists and professionals, it will help you leverage Lua for fast and easy game development.

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Product type Paperback
Published in Sep 2013
Publisher Packt
ISBN-13 9781782161608
Length 106 pages
Edition 1st Edition
Languages
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Author (1):
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AKINLAJA DAMILARE JOSHUA AKINLAJA DAMILARE JOSHUA
Author Profile Icon AKINLAJA DAMILARE JOSHUA
AKINLAJA DAMILARE JOSHUA
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Toc

Updating the enemy position and animation


The enemy's position and animation need constant update. First, we have to know the enemy's current state (dead or alive). If the enemy is alive, update the position and play animation; if not, don't.

First of all, add the enemy information to the list of solid tiles in FindSolidTiles(map):

function LoadTileMap(levelFile)
  map = loader.load(levelFile)
---set gravity to 1000
  gravity = 1000


  FindSolidTiles(map)
  ---list all solid tiles
  for i, obj in pairs( map("Characters").objects ) do

    if obj.type == "player" then PlayerSpawn(obj.x,obj.y-8) end
    if obj.type == "enemy" then EnemySpawn(obj.x,obj.y-16, obj.properties.dir ) end

  end
  
  map.drawObjects = false
  
end

Then update the enemy's current state and movement, as shown in the following code:

function EnemyUpdate(dt)

  if EnemyDied then

    EnemyDied = false
    --remove the enemy from scene when player kills enemy, scan through the table and check if dead == true remove enemy...
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