player.lua

   1 Player = {}
   2 Player.name = 'player'
   3 Player.color = {255, 0, 0}
   4 Player.width = 5
   5 Player.height = 5
   6 Player.acceleration = 100
   7 Player.position = {x=0, y=0}
   8 Player.vector = {x=0, y=0}
   9 Player.path = {}
  10
  11 function Player:new(o)
  12     o = o or {}
  13     setmetatable(o, self)
  14     self.__index = self
  15     o:recordPosition()
  16     o.vector = {x=o.acceleration, y=0}
  17     return o
  18 end
  19
  20 function Player:drawPath()
  21     if #self.path >= 4 then
  22         love.graphics.setColor(self.color)
  23         love.graphics.line(self.path)
  24     end
  25 end
  26
  27 function Player:draw()
  28     love.graphics.setColor(self.color)
  29     love.graphics.rectangle('fill', self.position.x, self.position.y, self.width, self.height)
  30
  31     -- add current position
  32     self:recordPosition()
  33     self:drawPath()
  34     table.remove(self.path)
  35     table.remove(self.path)
  36 end
  37
  38 function Player:recordPosition()
  39     print(self.position.x .. ', ' .. self.position.y)
  40     table.insert(self.path, self.position.x + self.width/2)
  41     table.insert(self.path, self.position.y + self.height/2)
  42 end
  43
  44 function Player:update(dt)
  45     if love.keyboard.isDown("w") then
  46         self.vector = {x=0, y=-self.acceleration}
  47         self:recordPosition()
  48     elseif love.keyboard.isDown("s") then
  49         self.vector = {x=0, y=self.acceleration}
  50         self:recordPosition()
  51     elseif love.keyboard.isDown("a") then
  52         self.vector = {x=-self.acceleration, y=0}
  53         self:recordPosition()
  54     elseif love.keyboard.isDown("d") then
  55         self.vector = {x=self.acceleration, y=0}
  56         self:recordPosition()
  57     end
  58
  59     self.position.x = self.position.x + self.vector.x * dt
  60     self.position.y = self.position.y + self.vector.y * dt
  61 end