/zoeplat

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  • Committer: Josh C
  • Date: 2013-03-16 19:31:02 UTC
  • Revision ID: josh@9ix.org-20130316193102-68imraus0srbj653
don't go off the edge

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main.lua
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DEBUG = true
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require 'zoetrope'
 
5
__ = require 'underscore'
5
6
--inspect = require 'inspect'
6
 
--_ = require 'underscore'
 
7
require 'pepperprof'
 
8
 
 
9
util = {
 
10
   dim = function(dir)
 
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      if dir == 'x' then
 
12
         return 'width'
 
13
      elseif dir == 'y' then
 
14
         return 'height'
 
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      else
 
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         print 'dir ??'
 
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      end
 
18
   end
 
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}
7
20
 
8
21
Player = Animation:extend {
9
22
   image = 'data/player.png',
12
25
   sequences = {
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26
      stand = { frames = { 1 }, fps = 1 },
14
27
      walk = { frames = { 2, 3 }, fps = 5 },
15
 
      jump = { frames = { 4 }, fps = 1 }
 
28
      jump = { frames = { 4 }, fps = 1 },
 
29
      climbLeft = { frames = { 5, 6 }, fps = 5 },
 
30
      climbRight = { frames = { 7, 8 }, fps = 5 }
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31
   },
 
32
   collisions = {},
 
33
   onWall = false,
 
34
   leftWallAt = 0,
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35
   onNew = function (self)
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36
              self.velocity.y = 0
19
37
              self.maxVelocity.y = 400
20
38
           end,
 
39
   doPhysics = function (self, dir, elapsed)
 
40
                  local vel = self.velocity
 
41
                  local acc = self.acceleration
 
42
                  local drag = self.drag
 
43
                  local minVel = self.minVelocity
 
44
                  local maxVel = self.maxVelocity
 
45
 
 
46
                  -- check existence of properties
 
47
 
 
48
                  if STRICT then
 
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                     assert(vel, 'active sprite has no velocity property')
 
50
                     assert(acc, 'active sprite has no acceleration property')
 
51
                     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')
 
54
                     assert(__.include({'x','y','rotation'}, dir), 'direction should be x, y, or rotation')
 
55
                  end
 
56
 
 
57
                  vel.x = vel.x or 0
 
58
                  vel.y = vel.y or 0
 
59
                  vel.rotation = vel.rotation or 0
 
60
 
 
61
                  -- physics
 
62
 
 
63
                  if acc[dir] and acc[dir] ~= 0 then
 
64
                     vel[dir] = vel[dir] + acc[dir] * elapsed
 
65
                  else
 
66
                     if drag[dir] then
 
67
                        if vel[dir] > 0 then
 
68
                           vel[dir] = vel[dir] - drag[dir] * elapsed
 
69
                           if vel[dir] < 0 then vel[dir] = 0 end
 
70
                        elseif vel[dir] < 0 then
 
71
                           vel[dir] = vel[dir] + drag[dir] * elapsed
 
72
                           if vel[dir] > 0 then vel[dir] = 0 end
 
73
                        end
 
74
                     end
 
75
                  end
 
76
 
 
77
                  if minVel[dir] and vel[dir] < minVel[dir] then vel[dir] = minVel[dir] end
 
78
                  if maxVel[dir] and vel[dir] > maxVel[dir] then vel[dir] = maxVel[dir] end
 
79
 
 
80
                  if vel[dir] ~= 0 then self[dir] = self[dir] + vel[dir] * elapsed end
 
81
 
 
82
                  if self[dir] < 0 then self[dir] = 0 end
 
83
                  local edge = the.view.map[util.dim(dir)] -
 
84
                               the.player[util.dim(dir)]
 
85
                  -- TODO: take map position into account
 
86
                  if self[dir] > edge then self[dir] = edge end
 
87
               end,
21
88
   onStartFrame = function (self)
22
89
                     -- this is all in startframe so it happens before
23
90
                     -- physics calc at beginning of update
27
94
                     if self.falling then self.jumping = false end
28
95
                     --print(self.jumping, self.falling)
29
96
 
30
 
                     self.velocity.x = 0
 
97
                     if (not self.onGround) and (not self.onWall) then
 
98
                        self:play('jump')
 
99
                     end
 
100
 
31
101
                     self.acceleration.y = 800
32
102
 
 
103
                     if self.onWall then
 
104
                        self.acceleration.y = 0
 
105
 
 
106
                        if self.onWall == 'right' then
 
107
                           self:play('climbRight')
 
108
                        elseif self.onWall == 'left' then
 
109
                           self:play('climbLeft')
 
110
                        end
 
111
 
 
112
                        if the.keys:pressed('up') then
 
113
                           self.velocity.y = -200
 
114
                        elseif the.keys:pressed('down') then
 
115
                           self.velocity.y = 200
 
116
                        else
 
117
                           self.velocity.y = 0
 
118
                           self:freeze(self.sequences[self.currentName].frames[1])
 
119
                        end
 
120
                     end
 
121
 
33
122
                     if the.keys:pressed('left') then
34
123
                        self.velocity.x = -200
35
 
                        if self:onGround() then self:play('walk') end
 
124
                        if self.onGround then self:play('walk') end
 
125
                        if self.onWall == 'right' then
 
126
                           self.onWall = false
 
127
                           self.leftWallAt = love.timer.getTime()
 
128
                        end
36
129
                     elseif the.keys:pressed('right') then
37
130
                        self.velocity.x = 200
38
 
                        if self:onGround() then self:play('walk') end
 
131
                        if self.onGround then self:play('walk') end
 
132
                        if self.onWall == 'left' then
 
133
                           self.onWall = false
 
134
                           self.leftWallAt = love.timer.getTime()
 
135
                        end
39
136
                     else
40
 
                        if self:onGround() then self:play('stand') end
 
137
                        if not self.onWall then
 
138
                           if self.onGround then self:play('stand') end
 
139
                           self.velocity.x = 0
 
140
                        end
41
141
                     end
42
142
 
43
 
                     if the.keys:justPressed('up') and self:onGround() then
 
143
                     if the.keys:justPressed('up') and
 
144
                      (self.onGround or the.console.visible or
 
145
                       (love.timer.getTime() - self.leftWallAt < .1) ) then
44
146
                        self.velocity.y = -400
45
147
                        self.jumping = true
46
 
                        self:play('jump')
47
148
                     end
48
149
                  end,
49
 
   onEndFrame = function (self)
50
 
                   --print(self.velocity.y)
51
 
                end,
 
150
   update = function (self, elapsed)
 
151
               -- NOTE: this is an override, not a callback
 
152
 
 
153
               self:doPhysics('x', elapsed)
 
154
               self:collide(the.view.map)
 
155
 
 
156
               -- handle X collisions
 
157
               self.onWall = false
 
158
               for _, col in ipairs(self.collisions) do
 
159
                  col.other:displaceDir(self, 'x')
 
160
                  if self.velocity.x > 0 then
 
161
                     self.onWall = 'right'
 
162
                  elseif self.velocity.x < 0 then
 
163
                     self.onWall = 'left'
 
164
                  else
 
165
                     print 'x ??'
 
166
                  end
 
167
               end
 
168
 
 
169
               self.onGround = false -- right before Y collision callbacks
 
170
               self:doPhysics('y', elapsed)
 
171
               self:collide(the.view.map)
 
172
 
 
173
               -- handle Y collisions
 
174
               for _, col in ipairs(self.collisions) do
 
175
                  if self.velocity.y > 0 then
 
176
                     self.onGround = true
 
177
                  end
 
178
 
 
179
                  col.other:displaceDir(self, 'y')
 
180
                  self.velocity.y = 0
 
181
                  self.jumping = false
 
182
               end
 
183
 
 
184
               Animation.update(self, elapsed)
 
185
            end,
 
186
   collide = function (self, ...)
 
187
                self.collisions = {}
 
188
                Animation.collide(self, ...)
 
189
                -- I could return a true/false value here if I wanted to...
 
190
             end,
52
191
   onCollide = function (self, other, xOverlap, yOverlap)
53
 
                  -- seriously, why does this even fire?
54
192
                  if other == the.view.map then return end
55
193
 
56
 
                  --print(string.format('col s{x=%i y=%i w=%i h=%i} %s', self.x, self.y, self.width, self.height, tostring(other)))
57
 
                  --print('vel.x:'..self.velocity.x.." vel.y:"..self.velocity.y)
58
 
 
59
 
                  -- assumption: any other collision is with a solid map tile
60
 
                  if yOverlap > xOverlap then
61
 
                     other:displace(self)
62
 
                  elseif xOverlap > yOverlap then
63
 
                     -- check if we've moved since collisions were generated
64
 
                     local xov, yov = self:overlap(other.x, other.y,
65
 
                                                   other.width, other.height)
66
 
                     if xov ~= 0 and yov ~= 0 then
67
 
                        self.velocity.y = 0
68
 
                        other:displace(self)
69
 
                        self.jumping = false
70
 
                     end
71
 
                  else
72
 
                     print('??')
73
 
                  end
74
 
 
75
 
               end,
76
 
   onGround = function (self)
77
 
                 return (not self.jumping) and (not self.falling)
78
 
              end
 
194
                  table.insert(self.collisions, {other = other,
 
195
                                                 xOverlap = xOverlap,
 
196
                                                 yOverlap = yOverlap })
 
197
               end
79
198
}
80
199
 
 
200
-- displace on a specific axis (monkey patch Sprite)
 
201
function Sprite:displaceDir(other, dir)
 
202
   if not self.solid or self == other or not other.solid then return end
 
203
   if STRICT then assert(other:instanceOf(Sprite), 'asked to displace a non-sprite') end
 
204
 
 
205
   if other.sprites then
 
206
      -- handle groups
 
207
 
 
208
      for _, spr in pairs(other.sprites) do
 
209
         self:displace(spr, dir)
 
210
      end
 
211
   else
 
212
      -- handle sprites
 
213
      local dim = util.dim(dir)
 
214
 
 
215
      local negMove = (other[dir] - self[dir]) + other[dim]
 
216
      local posMove = (self[dir] + self[dim]) - other[dir]
 
217
 
 
218
      -- TODO: re-add hinting?
 
219
      if negMove < posMove then
 
220
         chg = - negMove
 
221
      else
 
222
         chg = posMove
 
223
      end
 
224
   end
 
225
 
 
226
   other[dir] = other[dir] + chg
 
227
end
 
228
 
81
229
GameView = View:extend {
82
230
   onNew = function (self)
83
231
              self:loadLayers('data/map.lua')
86
234
           end,
87
235
   onUpdate = function (self)
88
236
                 --print('tick')
89
 
                 the.player:collide(self.map)
 
237
                 --the.player:collide(self.map)
90
238
                 --self.map:collide(the.player)
91
239
              end
92
240
}
94
242
the.app = App:new {
95
243
   onRun = function (self)
96
244
              self.view = GameView:new()
97
 
              --print(inspect(_(the.app):keys()))
 
245
              self.console:watch('onGround', 'the.player.onGround')
 
246
              self.console:watch('onWall', 'the.player.onWall')
 
247
              self.console:watch('updateTook', 'the.updateTook')
 
248
              self.console:watch('drawTook', 'the.drawTook')
 
249
 
 
250
              --the.profiler = newProfiler('time', 2000)
 
251
              --the.profiler = newProfiler()
 
252
              --the.profiler:start()
98
253
           end,
99
254
   onUpdate = function (self, dt)
100
 
                 -- TODO: make this not work if debug console is active
101
255
                 if the.keys:justPressed('escape') then
102
 
                    love.event.quit()
 
256
                    if the.profiler then
 
257
                       the.profiler:stop()
 
258
                       local outfile = io.open( "profile.txt", "w+" )
 
259
                       the.profiler:report( outfile )
 
260
                       outfile:close()
 
261
                    end
 
262
 
 
263
                    self.quit()
103
264
                 end
104
 
              end
105
 
}
 
 
b'\\ No newline at end of file'
 
265
              end,
 
266
   update = function (self, dt)
 
267
               the.updateStart = love.timer.getMicroTime()
 
268
               App.update(self, dt)
 
269
               if the.updateStart then
 
270
                  the.updateTook = love.timer.getMicroTime() - the.updateStart
 
271
               end
 
272
            end
 
273
}