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Viewing changes to zoetrope/core/cached.lua

  • Committer: Josh C
  • Date: 2013-03-09 04:58:45 UTC
  • Revision ID: josh@9ix.org-20130309045845-wdcov53ghv2h6iwf
apply acceleration to velocity, THEN apply velocity to position (then do 
collision).  important for detecting correct velocity

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zoetrope/core/cached.lua
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        --              Love image object
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        image = function (self, path)
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                assert(type(path) == 'string', 'path must be a string')
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                if not self._library.image[path] then
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                        self._library.image[path] = love.graphics.newImage(path)
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                end
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                return self._library.image[path]
 
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                if STRICT then
 
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                        assert(type(path) == 'string', 'path must be a string')
 
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                end
 
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                local realPath = self:_absolutePath(path)
 
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                if not self._library.image[realPath] then
 
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                        self._library.image[realPath] = love.graphics.newImage(realPath)
 
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                end
 
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                return self._library.image[realPath]
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        end,
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        -- Method: text
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        --              string
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        text = function (self, path)
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                assert(type(path) == 'string', 'path must be a string')
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                if not self._library.text[path] then
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                        self._library.text[path] = love.filesystem.read(path)
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                end
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                return self._library.text[path]
 
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                if STRICT then
 
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                        assert(type(path) == 'string', 'path must be a string')
 
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                end
 
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                local realPath = self:_absolutePath(path)
 
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                if not self._library.text[realPath] then
 
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                        self._library.text[realPath] = love.filesystem.read(realPath)
 
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                end
 
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                return self._library.text[realPath]
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        end,
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        -- Method: sound
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        --              <playSound>, <sound>
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        sound = function (self, path, length)
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                assert(type(path) == 'string', 'path must be a string')
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                if not self._library.sound[path] then
 
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                if STRICT then
 
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                        assert(type(path) == 'string', 'path must be a string')
 
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                end
 
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                local realPath = self:_absolutePath(path)
 
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                if not self._library.sound[realPath] then
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                        if length == 'short' then
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                                self._library.sound[path] = love.sound.newSoundData(path)
 
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                                self._library.sound[realPath] = love.sound.newSoundData(realPath)
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                        elseif length == 'long' then
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                                self._library.sound[path] = love.sound.newDecoder(path)
 
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                                self._library.sound[realPath] = love.sound.newDecoder(realPath)
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                        else
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                                error('length must be either "short" or "long"')
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                        end
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                local arg = {...}
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                local libKey = arg[1]
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                if type(libKey) == 'string' then
 
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                        libKey = self:_absolutePath(libKey)
 
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                end
 
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                if #arg > 1 then libKey = libKey .. arg[2] end
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                if not self._library.font[libKey] then
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                self._library.binds[{func, obj, arg}] = result
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                return result
 
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        end,
 
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        -- internal function: _absolutePath
 
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        -- Replaces any .. references in a path, where possible. 
 
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        --
 
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        -- Arguments:
 
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        --              rawPath - string path to expand
 
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        --
 
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        -- Returns:
 
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        --              string
 
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        _absolutePath = function (self, rawPath)
 
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                local matches
 
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                local result = rawPath
 
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                repeat
 
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                        result, matches = string.gsub(result, '[^/]+/%.%./', '')
 
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                until matches == 0
 
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                return result
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        end
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}