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- Committer: Josh C
- Date: 2013-03-02 20:40:57 UTC
- Revision ID: josh@9ix.org-20130302204057-yrra0a51zgtpq2v2
zoetrope 1.3.1
- files added:
- zoetrope/core/gamepad.lua
- files removed:
- build.sh
- data
- zoetrope/input
- files modified:
- zoetrope/core/app.lua
added
removed
zoetrope/input/keys.lua
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--
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--
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--
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-- <Sprite>
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Keys = Sprite:extend
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{
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visible = false,
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-- Property: typed
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-- This is literally what is being typed during the current frame.
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-- e.g. if the user holds the shift key and presses the 'a' key,
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-- this will be set to 'A'. Consult <allPressed()> if you
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-- want to know what specific keys are being pressed.
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typed = '',
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-- private property: _thisFrame
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-- what keys are pressed this frame
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-- if you are interested in this, use allPressed() instead
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_thisFrame = {},
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-- private property: _lastFrame
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-- what keys were pressed last frame
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_lastFrame = {},
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new = function (self, obj)
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obj = self:extend(obj)
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the.keys = obj
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love.keypressed = function (key, unicode) obj:keyPressed(key, unicode) end
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love.keyreleased = function (key, unicode) obj:keyReleased(key, unicode) end
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if obj.onNew then obj:onNew() end
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return obj
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end,
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-- Method: pressed
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-- Are *any* of the keys passed held down this frame?
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--
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-- Arguments:
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-- string key descriptions passed as individual arguments
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--
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-- Returns:
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-- boolean
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pressed = function (self, ...)
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local keys = {...}
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for _, value in pairs(keys) do
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if STRICT then
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assert(type(value) == 'string', 'all keys are strings; asked to check a ' .. type(value))
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end
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if self._thisFrame[value] then
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return true
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end
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end
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return false
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end,
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-- Method: justPressed
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-- Are *any* of the keys passed pressed for the first time this frame?
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--
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-- Arguments:
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-- string key descriptions passed as individual arguments
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--
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-- Returns:
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-- boolean
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justPressed = function (self, ...)
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local keys = {...}
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for _, value in pairs(keys) do
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if STRICT then
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assert(type(value) == 'string', 'all keys are strings; asked to check a ' .. type(value))
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end
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if self._thisFrame[value] and not self._lastFrame[value] then
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return true
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end
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end
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return false
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end,
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-- Method: released
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-- Are *all* of the keys passed not held down this frame?
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--
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-- Arguments:
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-- string key descriptions passed as individual arguments
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--
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-- Returns:
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-- boolean
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released = function (self, ...)
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local keys = {...}
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for _, value in pairs(keys) do
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if STRICT then
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assert(type(value) == 'string', 'all keys are strings; asked to check a ' .. type(value))
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end
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if self._thisFrame[value] then
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return false
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end
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end
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return true
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end,
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-- Method: justReleased
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-- Are *any* of the keys passed released after being held last frame?
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--
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-- Arguments:
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-- string key descriptions passed as individual arguments
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--
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-- Returns:
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-- boolean
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justReleased = function (self, ...)
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local keys = {...}
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for _, value in pairs(keys) do
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if STRICT then
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assert(type(value) == 'string', 'all keys are strings; asked to check a ' .. type(value))
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end
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if self._lastFrame[value] and not self._thisFrame[value] then
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return true
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end
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end
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return false
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end,
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-- Method: allPressed
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-- Returns all buttons currently pressed this frame.
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--
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-- Arguments:
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-- none
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--
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-- Returns:
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-- string key descriptions; if nothing is pressed, nil
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allPressed = function (self)
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local result = {}
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for key, value in pairs(self._thisFrame) do
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if value then table.insert(result, key) end
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end
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return unpack(result)
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end,
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-- Method: allJustPressed
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-- Returns all keys just pressed this frame.
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--
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-- Arguments:
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-- none
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--
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-- Returns:
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-- string key descriptions; if nothing is just pressed, nil
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allJustPressed = function (self)
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local result = {}
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for key, value in pairs(self._thisFrame) do
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if value and not self._lastFrame[key] then table.insert(result, key) end
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end
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return unpack(result)
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end,
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-- Method: allJustReleased
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-- Returns all keys just released this frame.
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--
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-- Arguments:
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-- none
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--
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-- Returns:
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-- string key descriptions; if nothing is just pressed, nil
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allJustReleased = function (self)
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local result = {}
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for key, value in pairs(self._thisFrame) do
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if not value and self._lastFrame[key] then table.insert(result, key) end
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end
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return unpack(result)
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end,
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-- Converts a character code to a Unicode string
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-- see http://stackoverflow.com/questions/7780179/what-is-the-way-to-represent-a-unichar-in-lua/7799843
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unicodeChar = function (self, code)
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if code == nil then return nil end
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if code < 32 then return string.format('\\x%02x', code) end
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if code < 126 then return string.char(code) end
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if code < 65539 then return string.format("\\u%04x", code) end
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if code < 1114111 then return string.format("\\u%08x", code) end
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end,
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-- Connects to the love.keypressed callback
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keyPressed = function (self, key, unicode)
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self._thisFrame[key] = true
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if unicode and unicode >= 0x20 and unicode ~= 127 and unicode < 0x3000 then
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self.typed = self.typed .. self:unicodeChar(unicode)
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end
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-- aliases for modifiers
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if key == 'rshift' or key == 'lshift' or
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key == 'rctrl' or key == 'lctrl' or
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key == 'ralt' or key == 'lalt' or
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key == 'rmeta' or key == 'lmeta' or
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key == 'rsuper' or key == 'lsuper' then
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self._thisFrame[string.sub(key, 2)] = true
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end
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end,
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-- Connects to the love.keyreleased callback
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keyReleased = function (self, key, unicode)
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self._thisFrame[key] = false
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-- aliases for modifiers
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if key == 'rshift' or key == 'lshift' or
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key == 'rctrl' or key == 'lctrl' or
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key == 'ralt' or key == 'lalt' or
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key == 'rmeta' or key == 'lmeta' or
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key == 'rsuper' or key == 'lsuper' then
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self._thisFrame[string.sub(key, 2)] = false
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end
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end,
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endFrame = function (self, elapsed)
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for key, value in pairs(self._thisFrame) do
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self._lastFrame[key] = value
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end
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self.typed = ''
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Sprite.endFrame(self, elapsed)
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end,
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update = function() end
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}
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