41 lines
919 B
Lua
41 lines
919 B
Lua
local Randomizer = require 'tetris.randomizers.randomizer'
|
|
|
|
local History4RollsRandomizer = Randomizer:extend()
|
|
|
|
function History4RollsRandomizer:initialize()
|
|
self.history = {"Z", "Z", "Z", "Z"}
|
|
self.first = true
|
|
end
|
|
|
|
function History4RollsRandomizer:generatePiece()
|
|
if self.first then
|
|
self.first = false
|
|
return self:updateHistory(({"L", "J", "I", "T"})[math.random(4)])
|
|
else
|
|
local shapes = {"I", "J", "L", "O", "S", "T", "Z"}
|
|
for i = 1, 4 do
|
|
local x = math.random(7)
|
|
if not inHistory(shapes[x], self.history) or i == 4 then
|
|
return self:updateHistory(shapes[x])
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
function History4RollsRandomizer:updateHistory(shape)
|
|
table.remove(self.history, 1)
|
|
table.insert(self.history, shape)
|
|
return shape
|
|
end
|
|
|
|
function inHistory(piece, history)
|
|
for idx, entry in pairs(history) do
|
|
if entry == piece then
|
|
return true
|
|
end
|
|
end
|
|
return false
|
|
end
|
|
|
|
return History4RollsRandomizer
|