-- mod-version:3
local core = require "core"
local config = require "core.config"
local style = require "core.style"
local common = require "core.common"
local View = require "core.view"
local command = require "core.command"
local keymap = require "core.keymap"
local TetrisView = View:extend()
config.plugins.tetris = common.merge({
tick = 0.5, -- The amount of time in seconds it takes for a piece to fall one line at 0 score.
height = 30, -- The amount of cells of height.
width = 10, -- The amount of cells of width.
cell_size = 18, -- The size in pixels of each cell.
cell_padding = 2, -- pixels between each cell
drop_shadow = true, -- Should cast a drop shadow.
lock_delay = 3, -- the multiplier for lock delay over a normal tick. set to 0 to disable
down_amount = 1 -- the amount we move a tetronimo down when you hit the down key; change to math.huge for instant.
}, config.plugins.tetris)
function TetrisView:new(options)
TetrisView.super.new(self)
self.cell_size = options.cell_size
self.cell_padding = options.cell_padding
self.grid = { x = options.width, y = options.height }
self.size.x = self.grid.x * (self.cell_size + self.cell_padding) + style.padding.x * 2
self.cells = { }
self.score = 0
self.paused = false
self.initial_tick = options.tick
self.lock_delay = options.lock_delay
self.drop_shadow = options.drop_shadow
self.tick = self:calculate_tick(self.score)
self.finished = false
self.thread = core.add_thread(function()
while not self.finished do
self:step()
core.redraw = true
coroutine.yield(self.tick)
end
end)
-- easier to specify rotations than to start doing matrix multiplication
self.tetronimos = {
{
color = { common.color "#ff0000" },
shape = { {
0,1,1,0,
0,1,1,0,
0,0,0,0,
0,0,0,0
} }
},
{
color = { common.color "#00ff00" },
shape = { {
1,1,0,0,
1,0,0,0,
1,0,0,0,
0,0,0,0
}, {
1,1,1,0,
0,0,1,0,
0,0,0,0,
0,0,0,0
}, {
0,0,1,0,
0,0,1,0,
0,1,1,0,
0,0,0,0
}, {
0,0,0,0,
1,0,0,0,
1,1,1,0,
0,0,0,0
} }
},
{
color = { common.color "#0000ff" },
shape = { {
1,0,0,0,
1,0,0,0,
1,1,0,0,
0,0,0,0
}, {
1,1,1,0,
1,0,0,0,
0,0,0,0,
0,0,0,0
}, {
0,1,1,0,
0,0,1,0,
0,0,1,0,
0,0,0,0
}, {
0,0,0,0,
0,0,1,0,
1,1,1,0,
0,0,0,0
} }
},
{
color = { common.color "#00ffff" },
shape = { {
1,1,0,0,
0,1,1,0,
0,0,0,0,
0,0,0,0
}, {
0,0,1,0,
0,1,1,0,
0,1,0,0,
0,0,0,0
}, {
0, 0,0,0,
1,1,0,0,
0,1,1,0,
0,0,0,0
}, {
0,1,0,0,
1,1,0,0,
1,0,0,0,
0,0,0,0
} }
},
{
color = { common.color "#ffff00" },
shape = { {
0,1,1,0,
1,1,0,0,
0,0,0,0,
0,0,0,0
}, {
0,1,0,0,
0,1,1,0,
0,0,1,0,
0,0,0,0
}, {
0,0,0,0,
0,1,1,0,
1,1,0,0,
0,0,0,0
}, {
1,0,0,0,
1,1,0,0,
0,1,0,0,
0,0,0,0
} }
},
{
color = { common.color "#ff00ff" },
shape = { {
0,1,0,0,
0,1,0,0,
0,1,0,0,
0,1,0,0
}, {
0,0,0,0,
1,1,1,1,
0,0,0,0,
0,0,0,0
}, {
0,0,1,0,
0,0,1,0,
0,0,1,0,
0,0,1,0
}, {
0,0,0,0,
0,0,0,0,
1,1,1,1,
0,0,0,0
} }
},
{
color = { common.color "#ffffff" },
shape = { {
1,1,1,0,
0,1,0,0,
0,0,0,0,
0,0,0,0
}, {
0,0,1,0,
0,1,1,0,
0,0,1,0,
0,0,0,0
}, {
0,0,0,0,
0,1,0,0,
1,1,1,0,
0,0,0,0
}, {
1,0,0,0,
1,1,0,0,
1,0,0,0,
0,0,0,0
} }
}
}
self.live_piece = nil
self.hold_piece = nil
end
function TetrisView:calculate_tick(score)
return self.initial_tick / (math.floor(score / 10) + 1)
end
function TetrisView:does_collide(x, y, tetronimo, rot)
local shape = tetronimo.shape[rot]
for i = 0, 3 do
for j = 0, 3 do
local ny = y + i
local nx = x + j
if (nx >= self.grid.x or ny >= self.grid.y or nx < 0 or ny < 0 or self.cells[self.grid.x * ny + nx + 1]) and shape[i * 4 + j + 1] == 1 then
return true
end
end
end
return false
end
function TetrisView:finalize_live_piece()
assert(self.live_piece)
local shape = self.live_piece.tetronimo.shape[self.live_piece.rot]
for i = 0, 3 do
for j = 0, 3 do
local ny = self.live_piece.y + i
local nx = self.live_piece.x + j
if shape[(i * 4 + j) + 1] == 1 then
self.cells[ny * self.grid.x + nx + 1] = self.live_piece.idx
end
end
end
for y = self.live_piece.y, math.min(self.live_piece.y + 4, self.grid.y - 1) do
local all_present = true
for x = 0, self.grid.x - 1 do
if not self.cells[y * self.grid.x + x + 1] then all_present = false end
end
if all_present then
self.score = self.score + 1
self.tick = self:calculate_tick(self.score)
for ny = y, 2, -1 do
for nx = 0, self.grid.x - 1 do
self.cells[ny * self.grid.x + nx + 1] = self.cells[(ny - 1) * self.grid.x + nx + 1]
end
end
end
end
self.live_piece = nil
end
function TetrisView:step()
if not self.finished and not self.paused then
if not self.live_piece then
local idx = self.next_piece or math.floor(math.random() * #self.tetronimos) + 1
self.live_piece = { tetronimo = self.tetronimos[idx], idx = idx, x = math.floor(self.grid.x / 2), y = 0, rot = 1 }
self.next_piece = math.floor(math.random() * #self.tetronimos) + 1
if (self:does_collide(self.live_piece.x, self.live_piece.y + 1, self.live_piece.tetronimo, self.live_piece.rot)) then
self:finalize_live_piece()
self.finished = true
end
else
if (self:does_collide(self.live_piece.x, self.live_piece.y + 1, self.live_piece.tetronimo, self.live_piece.rot)) then
self.live_piece.countup = (self.live_piece.countup or 0) + 1
if self.live_piece.countup > self.lock_delay then
self:finalize_live_piece()
end
else
self.live_piece.y = self.live_piece.y + 1
self.live_piece.countup = 0
end
end
end
end
function TetrisView:draw_tetronimo(posx, posy, tetronimo, rot, color)
local shape = tetronimo.shape[rot]
for y = 0, 3 do
for x = 0, 3 do
if shape[y * 4 + x + 1] == 1 then
renderer.draw_rect(posx + x * (self.cell_size + self.cell_padding), posy + y * (self.cell_size + self.cell_padding), self.cell_size, self.cell_size, color or tetronimo.color)
end
end
end
end
function TetrisView:draw()
self:draw_background(style.background3)
local lh = style.font:get_height()
local tx = self.position.x + style.padding.x
local ty = self.position.y + style.padding.y
renderer.draw_text(style.font, "Score: " .. self.score, tx, self.position.y + style.padding.y, style.normal)
local w = renderer.draw_text(style.font, "Next Piece", tx, self.position.y + style.padding.y + lh, style.normal)
if self.next_piece then
self:draw_tetronimo(tx, self.position.y + style.padding.y + lh * 2, self.tetronimos[self.next_piece], 1)
end
if self.held_piece then
self:draw_tetronimo(w + style.padding.x, self.position.y + style.padding.y + lh * 2, self.tetronimos[self.held_piece], 1)
end
renderer.draw_text(style.font, "Held Piece", w + style.padding.x, self.position.y + style.padding.y + lh, style.normal)
ty = ty + lh * 2 + (self.cell_size + self.cell_padding) * 4 + style.padding.y
renderer.draw_rect(tx, ty, (self.cell_size + self.cell_padding) * self.grid.x, (self.cell_size + self.cell_padding) * self.grid.y, style.background)
for y = 0, self.grid.y - 1 do
for x = 0, self.grid.x - 1 do
if self.cells[y * self.grid.x + x + 1] then
local color = self.tetronimos[self.cells[y * self.grid.x + x + 1]].color
renderer.draw_rect(tx + x * (self.cell_size + self.cell_padding), ty + y * (self.cell_size + self.cell_padding), self.cell_size, self.cell_size, color)
end
end
end
if self.live_piece then
self:draw_tetronimo(tx + self.live_piece.x * (self.cell_size + self.cell_padding), ty + self.live_piece.y * (self.cell_size + self.cell_padding), self.live_piece.tetronimo, self.live_piece.rot)
if self.drop_shadow then
local y = self:get_max_drop(math.huge)
if y ~= self.live_piece.y then
self:draw_tetronimo(tx + self.live_piece.x * (self.cell_size + self.cell_padding), ty + y * (self.cell_size + self.cell_padding), self.live_piece.tetronimo, self.live_piece.rot, { self.live_piece.tetronimo.color[1], self.live_piece.tetronimo.color[2], self.live_piece.tetronimo.color[3], 50 })
end
end
end
if self.finished or self.paused then renderer.draw_rect(tx, ty, self.grid.x * (self.cell_size + self.cell_padding), self.grid.y * (self.cell_size + self.cell_padding), { common.color "rgba(255, 255, 255, 0.5)" }) end
if self.finished then common.draw_text(style.font, style.error, "GAME OVER", "center", tx, ty, self.grid.x * (self.cell_size + self.cell_padding), self.grid.y * (self.cell_size + self.cell_padding)) end
if self.paused then common.draw_text(style.font, style.warn, "PAUSED", "center", tx, ty, self.grid.x * (self.cell_size + self.cell_padding), self.grid.y * (self.cell_size + self.cell_padding)) end
end
function TetrisView:rotate()
if self.live_piece and not self.paused then
local new_rot = (self.live_piece.rot % #self.live_piece.tetronimo.shape) + 1
if not self:does_collide(self.live_piece.x, self.live_piece.y, self.live_piece.tetronimo, new_rot) then
self.live_piece.rot = new_rot
end
end
end
function TetrisView:hold()
if self.live_piece and not self.paused then
if self.held_piece then
if not self:does_collide(self.live_piece.x, self.live_piece.y, self.tetronimos[self.held_piece], 1) then
local live_piece = self.live_piece.idx
self.live_piece = { x = self.live_piece.x, y = self.live_piece.y, rot = 1, idx = self.held_piece, tetronimo = self.tetronimos[self.held_piece] }
self.held_piece = live_piece
end
else
self.held_piece = self.live_piece.idx
self.live_piece = nil
end
end
end
function TetrisView:get_max_drop(amount)
if self.live_piece then
for y = self.live_piece.y, math.min(self.grid.y, self.live_piece.y + amount) do
if self:does_collide(self.live_piece.x, y + 1, self.live_piece.tetronimo, self.live_piece.rot) then
return y, true
end
end
end
return self.live_piece.y + amount, false
end
function TetrisView:drop(amount)
if self.live_piece and not self.paused then
local y, collides = self:get_max_drop(amount)
self.live_piece.y = y
if collides then
self:finalize_live_piece()
end
end
end
function TetrisView:shift(delta)
if self.live_piece and not self.paused and not self:does_collide(self.live_piece.x + delta, self.live_piece.y, self.live_piece.tetronimo, self.live_piece.rot) then
self.live_piece.x = self.live_piece.x + delta
end
end
command.add(TetrisView, {
["tetris:rotate"] = function() core.active_view:rotate() end,
["tetris:shift-left"] = function() core.active_view:shift(-1) end,
["tetris:shift-right"] = function() core.active_view:shift(1) end,
["tetris:drop"] = function() core.active_view:drop(config.plugins.tetris.down_amount) end,
["tetris:hard-drop"] = function() core.active_view:drop(math.huge) end,
["tetris:hold"] = function() core.active_view:hold() end,
["tetris:toggle-pause"] = function() core.active_view.paused = not core.active_view.paused end,
["tetris:quit"] = function()
core.active_view.finished = true
core.active_view.node:close_view(core.root_view.root_node, core.active_view)
end
})
command.add(nil, {
["tetris:start"] = function()
local view = TetrisView(config.plugins.tetris)
local node = core.root_view:get_active_node()
view.node = node:split("right", view, { x = true }, false)
core.set_active_view(view)
end
})
keymap.add {
["up"] = "tetris:rotate",
["left"] = "tetris:shift-left",
["right"] = "tetris:shift-right",
["down"] = "tetris:drop",
["space"] = "tetris:hard-drop",
["tab"] = "tetris:hold",
["escape"] = "tetris:quit",
["ctrl+e"] = { "tetris:quit", "tetris:start" },
["p"] = "tetris:toggle-pause"
}
return { view = TetrisView }
