/spacey

To get this branch, use:
bzr branch http://9ix.org/bzr/spacey
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STRICT = true
DEBUG = true

require 'zoetrope'
vector = require 'vector'

require 'group'

require 'version'
require 'wrap_tile'
require 'mirror'
require 'player'
require 'enemy'
require 'cursor'
require 'bullet'
require 'rock'
require 'boom'

util = {
   signOf = function(value)
               if value >= 0 then
                  return 1
               else
                  return -1
               end
            end,
   shortestVector = function(from, to)
                       if STRICT then
                          if from.x < the.app.width / 2 or
                             from.x > the.bg.width - the.app.width / 2 or
                             from.y < the.app.height / 2 or
                             from.y > the.bg.height - the.app.height / 2 then
                             error('"from" coordinate out of bounds: X='..from.x..' Y='..from.y)
                          end

                          if to.x < the.app.width / 2 or
                             to.x > the.bg.width - the.app.width / 2 or
                             to.y < the.app.height / 2 or
                             to.y > the.bg.height - the.app.height / 2 then
                             error('"to" coordinate out of bounds: X='..to.x..' Y='..to.y)
                          end
                       end

                       -- normalize grid to account for mirror zones
                       local fx = from.x - the.app.width / 2
                       local fy = from.y - the.app.height / 2
                       local tx = to.x - the.app.width / 2
                       local ty = to.y - the.app.height / 2

                       local short = {}

                       -- pick shorter x
                       if math.abs(tx - fx) < math.abs(tx - fx - (the.bg.width - the.app.width)) then
                          -- straight path is shorter
                          short.x = tx - fx
                       else
                          short.x = tx - fx - (the.bg.width - the.app.width)
                       end

                       -- pick shorter y
                       if math.abs(ty - fy) < math.abs(ty - fy - (the.bg.height - the.app.height)) then
                          -- straight path is shorter
                          short.y = ty - fy
                       else
                          short.y = ty - fy - (the.bg.height - the.app.height)
                       end

                       return vector.new(short.x, short.y)
                    end
}

GameView = View:extend {
   lastRock = 0,
   rockInterval = 1,
   gameStart = 0,
   onNew = function (self)
              -- for x = 1,30 do
              --    for y = 1,30 do
              --       self:add(Fill:new{x=x*400, y=y*400,
              --                         width = 32, height = 32,
              --                         fill = {0,0,255}
              --                      })
              --    end
              -- end

              the.rockColliders = Group:new()
              the.bullets = Group:new()
              the.mirrors = Group:new()
              the.rocks = Group:new()

              the.bg = Tile:new{
                 image = 'data/stars3.png',
                 -- 1366x768 * 3
                 width = 4098,
                 height = 2304
              }
              self:add(the.bg)

              --the.player = CrystalPlayer:new{x=400,y=300}
              the.player = SpacePlayer:new{x=1366,y=768}
              self:add(the.player)

              --self:add(Enemy:new{x=400, y=300})

              self:add(the.bullets)
              self:add(the.rockColliders)
              self:add(the.mirrors)
              self:add(the.rocks)

              the.cursor = Cursor:new()
              self:add(the.cursor)

              the.score = Text:new{
                 width = the.app.width,
                 align = 'center',
                 font = 25}
              self:add(the.score)

              love.mouse.setGrab(true)
              love.mouse.setVisible(false)
              love.mouse.setPosition(the.app.width / 2, the.app.height / 2)

              --self:loadLayers('data/map.lua')
              self.focus = the.player
              --self:clampTo(self.map)

              self.gameStart = love.timer.getTime()
           end,
   onUpdate = function(self, dt)
                 if love.timer.getTime() > self.lastRock + self.rockInterval then
                    local unseenRock = nil
                    while not unseenRock do
                       local rock = Rock:new{
                          x = math.random(the.app.width / 2,
                                          the.bg.width - the.app.width / 2),
                          y = math.random(the.app.height / 2,
                                          the.bg.height - the.app.height / 2),
                          velocity = {
                             x = math.random(-300, 300),
                             y = math.random(-300, 300),
                             rotation = math.random(-7, 7)
                          },
                          scale = math.random() + 0.5
                       }

                       local rockToPlayer = util.shortestVector(rock, the.player)
                       if math.abs(rockToPlayer.x) > the.app.width / 2 + rock.width * rock.scale and
                           math.abs(rockToPlayer.y) > the.app.height / 2 + rock.height * rock.scale then
                         unseenRock = rock
                        end
                    end

                    the.rocks:add(unseenRock)

                    self.lastRock = love.timer.getTime()
                 end

                 the.bullets:collide(the.rockColliders)
              end,
   onEndFrame = function(self)
                   if the.player.active then
                      local t = love.timer.getTime() - self.gameStart
                      local m = t / 60
                      local s = t % 60

                      the.score.text = string.format('Score: %d:%02d', m, s)
                      the.score.y = the.player.y - the.app.height / 2 + the.player.height
                      the.score.x = the.player.x - the.app.width / 2
                   end
                end,
   draw = function (self, x, y)
             View.draw(self, x, y)
             love.graphics.print('FPS:' .. love.timer.getFPS(), 20, 20)
          end
}

MenuScreen = View:extend {
   title = Text:new{text = "Press a key to start", font = 48, wordWrap = false},
   --title = Tile:new{image = 'data/title.png', x = 0, y = 0},
   onNew = function(self)
              self:add(self.title)
              self.title:centerAround(400, 200)
           end,
   onUpdate = function(self, elapsed)
                 if the.keys:allJustPressed() then
                    the.app.view = GameView:new()
                 end
              end
}

the.app = App:new {
   onRun = function (self)
              print('Version: ' .. VERSION)

              math.randomseed(os.time())

              self.view = GameView:new()
              if DEBUG then
                 self.console:watch('VERSION', 'VERSION')
                 self.console:watch('updateTook', 'the.updateTook')
                 self.console:watch('the.player.x', 'the.player.x')
                 self.console:watch('the.player.y', 'the.player.y')
                 self.console:watch('the.app.width', 'the.app.width')
                 self.console:watch('the.app.height', 'the.app.height')
                 --self.console:watch('drawTook', 'the.drawTook')

                 -- back off that dark overlay a bit
                 self.console.fill.fill[4] = 75
              end
           end,
   onUpdate = function (self, dt)
                 if the.keys:justPressed('escape') then
                    self.quit()
                 end
              end,
   update = function (self, dt)
               the.updateStart = love.timer.getMicroTime()
               App.update(self, dt)
               if the.updateStart then
                  the.updateTook = love.timer.getMicroTime() - the.updateStart
               end
            end
}