/traderous

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Viewing changes to main.lua

  • Committer: Josh C
  • Date: 2013-06-16 04:21:01 UTC
  • Revision ID: josh@9ix.org-20130616042101-tp1rddbd3subc8lg
enemy is back

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main.lua
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require 'boom'
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require 'planet'
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require 'trade_view'
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require 'shield'
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util = {
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   signOf = function(value)
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                  return -1
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               end
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            end,
 
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   shortestVector = function(from, to)
 
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                       if STRICT then
 
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                          if from.x < the.app.width / 2 or
 
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                             from.x > the.bg.width - the.app.width / 2 or
 
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                             from.y < the.app.height / 2 or
 
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                             from.y > the.bg.height - the.app.height / 2 then
 
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                             error('"from" coordinate out of bounds: X='..from.x..' Y='..from.y)
 
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                          end
 
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                          if to.x < the.app.width / 2 or
 
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                             to.x > the.bg.width - the.app.width / 2 or
 
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                             to.y < the.app.height / 2 or
 
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                             to.y > the.bg.height - the.app.height / 2 then
 
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                             error('"to" coordinate out of bounds: X='..to.x..' Y='..to.y)
 
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                          end
 
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                       end
 
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                       -- normalize grid to account for mirror zones
 
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                       local fx = from.x - the.app.width / 2
 
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                       local fy = from.y - the.app.height / 2
 
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                       local tx = to.x - the.app.width / 2
 
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                       local ty = to.y - the.app.height / 2
 
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                       local short = {}
 
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                       -- pick shorter x
 
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                       if math.abs(tx - fx) < math.abs(tx - fx - (the.bg.width - the.app.width)) then
 
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                          -- straight path is shorter
 
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                          short.x = tx - fx
 
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                       else
 
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                          short.x = tx - fx - (the.bg.width - the.app.width)
 
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                       end
 
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                       -- pick shorter y
 
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                       if math.abs(ty - fy) < math.abs(ty - fy - (the.bg.height - the.app.height)) then
 
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                          -- straight path is shorter
 
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                          short.y = ty - fy
 
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                       else
 
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                          short.y = ty - fy - (the.bg.height - the.app.height)
 
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                       end
 
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                       return vector.new(short.x, short.y)
 
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                    end
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}
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GameView = View:extend {
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              the.interface = Group:new()
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              the.planets = Group:new()
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              the.indicators = Group:new()
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              the.enemies = Group:new()
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              the.bg = Tile:new{
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                 image = 'data/stars3.png',
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              the.player = SpacePlayer:new{x=the.bg.width / 2, y=the.bg.height / 2}
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              self:add(the.player)
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              self:add(the.player.thrust)
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              self:add(the.player.shield)
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              self:add(the.enemies)
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              for _ = 1, 5 do
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                 local e = Enemy:new{x = math.random(the.bg.width),
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                                     y = math.random(the.bg.height)}
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                 --local e = Enemy:new{x=the.bg.width / 2, y=the.bg.height / 2}
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                 the.enemies:add(e)
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                 self:add(e.thrust) -- why doesn't this work in Enemy.new?
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                 self:add(e.shield)
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              end
 
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              self:add(Enemy:new{x=400, y=300})
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              self:add(the.bullets)
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              self:add(the.indicators)
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              self:add(the.interface)
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              for _ = 1, math.random(3, 6) do
 
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              for _ = 1, math.random(6) do
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                 local planet = Planet:new{
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                    x = math.random(the.app.width / 2,
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                                    the.bg.width - the.app.width / 2),
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              the.cursor = Cursor:new()
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              self:add(the.cursor)
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              the.over = Text:new{
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                 y = the.app.height / 2,
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                 width = the.app.width,
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                 align = 'center',
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                 font = 25,
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                 text = "Game Over",
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                 visible = false
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              }
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              the.interface:add(the.over)
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              the.instructions = Text:new{
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                 y = the.app.height / 2 + 32,
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                 width = the.app.width,
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                 align = 'center',
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                 font = 12,
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                 text = "Press Enter to start a new game\nPress Q to quit",
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                 visible = false
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              }
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              the.interface:add(the.instructions)
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              love.mouse.setGrab(true)
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              love.mouse.setVisible(false)
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              love.mouse.setPosition(the.app.width / 2, the.app.height / 2)
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           end,
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   onUpdate = function(self, dt)
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                 the.bullets:collide(the.planets)
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                 the.bullets:collide(the.player)
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                 the.bullets:collide(the.enemies)
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              end,
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   onEndFrame = function(self)
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                   the.interface.translate.x = the.player.x - the.app.width / 2 + the.player.width / 2