entities.lua

   1 require 'inheritance'
   2 require 'physics'
   3
   4 entity = {}
   5
   6 --[[
   7 entity object constructor
   8 properties: xPos, yPos, speed, density
   9 ]]--
  10 function entity:new(o)
  11         setmetatable(o,self)
  12         self.__index=self
  13         return o
  14 end
  15
  16 --[[
  17 Stub
  18 ]]--
  19 function entity:init(xPos,yPos)
  20 end
  21
  22 -- TODO stub
  23 function entity:setSprite(sprite)
  24 end
  25
  26 --TODO stub
  27 function entity:draw(x,y)
  28 end
  29
  30 -- method to set horizontal speed
  31 function entity:setSpeed(speed)
  32         self.speed = speed
  33 end
  34
  35 -- method to set density, makes entities 'dive' (NOT density of love.physics)
  36 function entity:setDensity(density)
  37         self.density = density
  38 end
  39
  40 -- TODO or remove
  41 function entity:setPosition(xPos, yPos)
  42 end
  43
  44 -- SHIP:
  45 Ship ={}
  46 --ship object inherits methods from entity
  47 Ship = inherits(entity)
  48
  49 function Ship:init(xPos,yPos)
  50         local shipShape = {-5,0,0,5,5,0,0,-5} -- the shape of a ship
  51         self.test = true
  52         self.body,self.shape,self.fixture = physics_createBodyWithShape(xPos,yPos,shipShape)
  53 end
  54
  55 --[[
  56 draws a ship TODO new..
  57 ]]--
  58 function Ship:draw(camX,camY)
  59         love.graphics.push()
  60         love.graphics.setColor(255,255,255)
  61         local sx = self.body:getX()-camX
  62         local sy = self.body:getY()-camY
  63         love.graphics.polygon('fill',sx-5,sy,sx,sy+5,sx+5,sy,sx,sy-5)
  64         love.graphics.pop()
  65 end
  66
  67 -- TORPEDO:
  68 Torpedo = {}
  69 --torpedo object inherits methods from entity
  70 Torpedo = inherits(entity)
  71