/zoeplat

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  • Committer: Josh C
  • Date: 2013-03-10 21:55:44 UTC
  • Revision ID: josh@9ix.org-20130310215544-iqzp3x2l10h9247f
reorganize code - separate X and Y physics so we can collide in each 
direction separately

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main.lua
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DEBUG = true
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require 'zoetrope'
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__ = require 'underscore'
 
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_ = require 'underscore'
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--inspect = require 'inspect'
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require 'pepperprof'
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require 'getopt_alt'
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util = {
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   dim = function(dir)
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      if dir == 'x' then
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         return 'width'
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      elseif dir == 'y' then
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         return 'height'
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      else
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         if STRICT then error('dir '..dir) end
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      end
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   end
 
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Player = Animation:extend {
 
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   image = 'data/player.png',
 
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   height = 32,
 
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   width = 32,
 
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   sequences = {
 
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      stand = { frames = { 1 }, fps = 1 },
 
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      walk = { frames = { 2, 3 }, fps = 5 },
 
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      jump = { frames = { 4 }, fps = 1 }
 
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   },
 
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   onNew = function (self)
 
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              self.velocity.y = 0
 
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              self.maxVelocity.y = 400
 
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           end,
 
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   doPhysics = function (self, dir, elapsed)
 
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                  local vel = self.velocity
 
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                  local acc = self.acceleration
 
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                  local drag = self.drag
 
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                  local minVel = self.minVelocity
 
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                  local maxVel = self.maxVelocity
 
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                  -- check existence of properties
 
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                  if STRICT then
 
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                     assert(vel, 'active sprite has no velocity property')
 
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                     assert(acc, 'active sprite has no acceleration property')
 
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                     assert(drag, 'active sprite has no drag property')
 
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                     assert(minVel, 'active sprite has no minVelocity property')
 
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                     assert(maxVel, 'active sprite has no maxVelocity property')
 
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                     assert(_.include({'x','y','rotation'}, dir), 'direction should be x, y, or rotation')
 
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                  end
 
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                  vel.x = vel.x or 0
 
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                  vel.y = vel.y or 0
 
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                  vel.rotation = vel.rotation or 0
 
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                  -- physics
 
44
 
 
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                  if acc[dir] and acc[dir] ~= 0 then
 
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                     vel[dir] = vel[dir] + acc[dir] * elapsed
 
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                  else
 
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                     if drag[dir] then
 
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                        if vel[dir] > 0 then
 
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                           vel[dir] = vel[dir] - drag[dir] * elapsed
 
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                           if vel[dir] < 0 then vel[dir] = 0 end
 
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                        elseif vel[dir] < 0 then
 
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                           vel[dir] = vel[dir] + drag[dir] * elapsed
 
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                           if vel[dir] > 0 then vel[dir] = 0 end
 
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                        end
 
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                     end
 
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                  end
 
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59
                  if minVel[dir] and vel[dir] < minVel[dir] then vel[dir] = minVel[dir] end
 
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                  if maxVel[dir] and vel[dir] > maxVel[dir] then vel[dir] = maxVel[dir] end
 
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                  if vel[dir] ~= 0 then self[dir] = self[dir] + vel[dir] * elapsed end
 
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               end,
 
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   onStartFrame = function (self)
 
65
                     -- this is all in startframe so it happens before
 
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                     -- physics calc at beginning of update
 
67
 
 
68
                     -- jumping/falling updates could go in EndFrame...
 
69
                     self.falling = self.velocity.y > 0
 
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                     if self.falling then self.jumping = false end
 
71
                     --print(self.jumping, self.falling)
 
72
 
 
73
                     if not self.onGround then
 
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                        self:play('jump')
 
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                     end
 
76
 
 
77
                     self.velocity.x = 0
 
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                     self.acceleration.y = 800
 
79
 
 
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                     if the.keys:pressed('left') then
 
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                        self.velocity.x = -200
 
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                        if self.onGround then self:play('walk') end
 
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                     elseif the.keys:pressed('right') then
 
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                        self.velocity.x = 200
 
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                        if self.onGround then self:play('walk') end
 
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                     else
 
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                        if self.onGround then self:play('stand') end
 
88
                     end
 
89
 
 
90
                     if the.keys:justPressed('up') and self.onGround then
 
91
                        self.velocity.y = -400
 
92
                        self.jumping = true
 
93
                     end
 
94
                  end,
 
95
   update = function (self, elapsed)
 
96
               -- NOTE: this is an override, not a callback
 
97
 
 
98
               self:doPhysics('x', elapsed)
 
99
 
 
100
               self.onGround = false -- right before Y collision callbacks
 
101
               self:doPhysics('y', elapsed)
 
102
 
 
103
               self:collide(the.view.map)
 
104
            end,
 
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   onCollide = function (self, other, xOverlap, yOverlap)
 
106
                  -- seriously, why does this even fire?
 
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                  if other == the.view.map then return end
 
108
 
 
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                  --print(string.format('col s{x=%i y=%i w=%i h=%i} %s', self.x, self.y, self.width, self.height, tostring(other)))
 
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                  --print('vel.x:'..self.velocity.x.." vel.y:"..self.velocity.y)
 
111
 
 
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                  -- assumption: any other collision is with a solid map tile
 
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                  if yOverlap > xOverlap then
 
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                     other:displace(self)
 
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                     if self.velocity.x > 0 then
 
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                        self.onWall = 'right'
 
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                     elseif self.velocity.x < 0 then
 
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                        self.onWall = 'left'
 
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                     else
 
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                        print 'x ??'
 
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                     end
 
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                  elseif xOverlap > yOverlap then
 
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                     -- check if we've moved since collisions were generated
 
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                     local xov, yov = self:overlap(other.x, other.y,
 
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                                                   other.width, other.height)
 
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                     if xov ~= 0 and yov ~= 0 then
 
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                        --print('y collision')
 
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                        if self.velocity.y > 0 then
 
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                           self.onGround = true
 
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                        end
 
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                        self.velocity.y = 0
 
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                        other:displace(self)
 
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                        self.jumping = false
 
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                     end
 
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                  else
 
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                     print('xy ??')
 
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                  end
 
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               end,
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}
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GameView = View:extend {
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              self:loadLayers('data/map.lua')
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              self.focus = the.player
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              self:clampTo(self.map)
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              the.recorder = Recorder:new{mousePosInterval = 9999}
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              the.app.meta:add(the.recorder)
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              if the.app.record then
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                 the.recorder:startRecording()
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              elseif the.app.playback then
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                 local storage = Storage:new{filename = 'record.lua'}
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                 storage:load()
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                 --print(inspect(storage.data))
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                 the.recorder.record = storage.data
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                 the.recorder:startPlaying()
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              end
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           end,
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   onUpdate = function (self)
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                 --print('drawTook: ', the.drawTook)
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                 --print('tick')
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                 --the.player:collide(self.map)
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                 --self.map:collide(the.player)
45
 
              end,
46
 
   -- draw = function (self, x, y)
47
 
   --           View.draw(self, x, y)
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49
 
   --           love.graphics.print('FPS:' .. love.timer.getFPS(), 20, 20)
50
 
   --        end
 
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              end
51
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}
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53
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the.app = App:new {
54
 
   record = true,
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158
   onRun = function (self)
56
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              self.view = GameView:new()
 
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              --print(inspect(_(the.app):keys()))
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              self.console:watch('onGround', 'the.player.onGround')
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              self.console:watch('onWall', 'the.player.onWall')
59
 
              self.console:watch('updateTook', 'the.updateTook')
60
 
              self.console:watch('drawTook', 'the.drawTook')
61
 
              self.console:watch('recorder state', 'the.recorder.state')
62
 
 
63
 
              --the.profiler = newProfiler('time', 2000)
64
 
              --the.profiler = newProfiler()
65
 
              --the.profiler:start()
66
163
           end,
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   onUpdate = function (self, dt)
68
 
                 if the.keys:justPressed('escape') then
69
 
                    if the.profiler then
70
 
                       the.profiler:stop()
71
 
                       local outfile = io.open( "profile.txt", "w+" )
72
 
                       the.profiler:report( outfile )
73
 
                       outfile:close()
74
 
                    end
75
 
 
76
 
                    if self.record then
77
 
                       if not love.filesystem.remove('record.lua') then
78
 
                          print('could not remove record.lua')
79
 
                       end
80
 
                       local storage = Storage:new{
81
 
                          data = the.recorder.record,
82
 
                          filename = 'record.lua'
83
 
                       }
84
 
                       storage:save(false)
85
 
                       --print(inspect(the.recorder.record))
86
 
                    end
87
 
 
 
165
                 if the.keys:justPressed('escape') and 
 
166
                   not self.console.visible then
88
167
                    self.quit()
89
168
                 end
90
 
              end,
91
 
   update = function (self, dt)
92
 
               the.updateStart = love.timer.getMicroTime()
93
 
               App.update(self, dt)
94
 
               if the.updateStart then
95
 
                  the.updateTook = love.timer.getMicroTime() - the.updateStart
96
 
               end
97
 
            end
98
 
}
99
 
 
100
 
function love.load (arg)
101
 
   opts = getopt(arg, '')
102
 
   if opts['p'] then
103
 
      the.app.playback = true
104
 
      the.app.record = false
105
 
   elseif opts['r'] then
106
 
      the.app.record = true
107
 
   end
108
 
 
109
 
   the.app:run()
110
 
end
 
 
b'\\ No newline at end of file'
 
169
              end
 
170
}
 
 
b'\\ No newline at end of file'