mirror of
https://github.com/vrld/hump.git
synced 2024-11-23 12:24:19 +00:00
103 lines
2.8 KiB
Lua
103 lines
2.8 KiB
Lua
--[[
|
|
Copyright (c) 2010 Matthias Richter
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
Except as contained in this notice, the name(s) of the above copyright holders
|
|
shall not be used in advertising or otherwise to promote the sale, use or
|
|
other dealings in this Software without prior written authorization.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
]]--
|
|
|
|
require 'ringbuffer'
|
|
|
|
local sequence = {}
|
|
sequence.__index = sequence
|
|
|
|
function Sequence(...)
|
|
local seq = {}
|
|
seq.scenes = Ringbuffer(...)
|
|
return setmetatable(seq, sequence)
|
|
end
|
|
|
|
function sequence:add(...)
|
|
self.scenes:append(...)
|
|
end
|
|
|
|
function sequence:select(k)
|
|
local scene = assert(self.scenes:get(), "No scene in sequence")
|
|
scene:leave()
|
|
|
|
self.scenes.current = k % self.scenes:size()
|
|
scene = assert(self.scenes:get(), "No scene in sequence")
|
|
scene:enter()
|
|
scene.time = 0
|
|
end
|
|
|
|
function sequence:rewind()
|
|
self:select(1)
|
|
end
|
|
|
|
function sequence:prevScene()
|
|
local scene = assert(self.scenes:get(), "No scene in sequence")
|
|
scene:leave()
|
|
|
|
scene = assert(self.scenes:prev(), "No scene in sequence")
|
|
scene:enter()
|
|
scene.time = 0
|
|
end
|
|
|
|
function sequence:nextScene()
|
|
local scene = assert(self.scenes:get(), "No scene in sequence")
|
|
scene:leave()
|
|
|
|
scene = assert(self.scenes:next(), "No scene in sequence")
|
|
scene:enter()
|
|
scene.time = 0
|
|
end
|
|
|
|
function sequence:draw()
|
|
local scene = assert(self.scenes:get(), "No scene in sequence")
|
|
scene:draw()
|
|
end
|
|
|
|
function sequence:update(dt)
|
|
local scene = assert(self.scenes:get(), "No scene in sequence")
|
|
scene:update(dt)
|
|
scene.time = scene.time + dt
|
|
if scene:isFinished() then
|
|
self:nextScene()
|
|
end
|
|
end
|
|
|
|
local scene = {}
|
|
scene.__index = scene
|
|
|
|
local function __NULL__() end
|
|
function Scene(length)
|
|
local sc = {time = 0, length = length or -1}
|
|
sc.update = __NULL__
|
|
sc.enter = __NULL__
|
|
sc.leave = __NULL__
|
|
return setmetatable(sc, scene)
|
|
end
|
|
|
|
function scene:isFinished()
|
|
return self.length > 0 and self.time >= self.length
|
|
end
|