56 lines
1.3 KiB
Lua
56 lines
1.3 KiB
Lua
|
local Randomizer = require 'tetris.randomizers.randomizer'
|
||
|
|
|
||
|
|
local MirrorRandomizer = Randomizer:extend()
|
||
|
|
|
||
|
|
function MirrorRandomizer:initialize()
|
||
|
|
self.mirror_state = false
|
||
|
|
self.total_pieces = 0
|
||
|
|
self.piece_stack = {}
|
||
|
|
self.history = {"S", "Z"}
|
||
|
|
self.shapes = {"I", "J", "L", "O", "S", "T", "Z"}
|
||
|
|
self.mirrors = {
|
||
|
|
["I"] = "O",
|
||
|
|
["J"] = "L",
|
||
|
|
["L"] = "J",
|
||
|
|
["O"] = "I",
|
||
|
|
["S"] = "Z",
|
||
|
|
["T"] = "T",
|
||
|
|
["Z"] = "S"
|
||
|
|
}
|
||
|
|
end
|
||
|
|
|
||
|
|
function inHistory(piece, history)
|
||
|
|
for idx, entry in pairs(history) do
|
||
|
|
if entry == piece then
|
||
|
|
return true
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return false
|
||
|
|
end
|
||
|
|
|
||
|
|
function MirrorRandomizer:generatePiece()
|
||
|
|
local generated
|
||
|
|
|
||
|
|
if self.mirror_state then
|
||
|
|
generated = table.remove(self.piece_stack)
|
||
|
|
else
|
||
|
|
repeat
|
||
|
|
generated = self.shapes[math.random(7)]
|
||
|
|
until not inHistory(generated, self.history)
|
||
|
|
table.remove(self.history, 1)
|
||
|
|
table.insert(self.history, generated)
|
||
|
|
table.insert(self.piece_stack, self.mirrors[generated])
|
||
|
|
end
|
||
|
|
|
||
|
|
self.total_pieces = self.total_pieces + 1
|
||
|
|
|
||
|
|
if self.total_pieces % 14 == 0 then
|
||
|
|
self.mirror_state = false
|
||
|
|
elseif self.total_pieces % 14 == 7 then
|
||
|
|
self.mirror_state = true
|
||
|
|
end
|
||
|
|
|
||
|
|
return generated
|
||
|
|
end
|
||
|
|
|
||
|
|
return MirrorRandomizer
|