/spacey

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  • Committer: Josh C
  • Date: 2013-05-14 16:39:54 UTC
  • Revision ID: josh@9ix.org-20130514163954-tpi9djio3pm6vswf
prepare a collision box for the rocks

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main.lua
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require 'version'
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require 'wrap_tile'
 
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require 'mirror'
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require 'player'
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require 'enemy'
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require 'cursor'
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               else
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                  return -1
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               end
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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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              --    end
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              -- end
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              the.rockColliders = {}
 
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              the.bullets = {}
 
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              the.bg = Tile:new{
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                 image = 'data/stars3.png',
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                 -- 1366x768 * 3
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              the.player = SpacePlayer:new{x=1366,y=768}
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              self:add(the.player)
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              self:add(Enemy:new{x=400, y=300})
 
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              --self:add(Enemy:new{x=400, y=300})
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              the.cursor = Cursor:new()
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              self:add(the.cursor)
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           end,
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   onUpdate = function(self, dt)
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                 if love.timer.getTime() > self.lastRock + self.rockInterval then
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                    local rock = Rock:new{
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                       x = math.random(the.bg.width),
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                       y = math.random(the.bg.height),
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                       velocity = {
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                          x = math.random(-300, 300),
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                          y = math.random(-300, 300),
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                          rotation = math.random(-7, 7)
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                       },
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                       scale = math.random() + 0.5
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                    }
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                    self:add(rock)
 
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                    local unseenRock = nil
 
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                    while not unseenRock do
 
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                       local rock = Rock: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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                          y = math.random(the.app.height / 2,
 
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                                          the.bg.height - the.app.height / 2),
 
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                          velocity = {
 
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                             x = math.random(-300, 300),
 
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                             y = math.random(-300, 300),
 
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                             rotation = math.random(-7, 7)
 
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                          },
 
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                          scale = math.random() + 0.5
 
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                       }
 
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                       local rockToPlayer = util.shortestVector(rock, the.player)
 
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                       if math.abs(rockToPlayer.x) > the.app.width / 2 + rock.width * rock.scale and
 
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                           math.abs(rockToPlayer.y) > the.app.height / 2 + rock.height * rock.scale then
 
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                         unseenRock = rock
 
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                        end
 
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                    end
 
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                    self:add(unseenRock)
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                    self.lastRock = love.timer.getTime()
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                 end