Created
April 18, 2012 14:54
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The beginnings of a tetris game made with curses
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require 'curses' | |
require 'timeout' | |
include Curses | |
PIECE1 = <<PIECE | |
111100000000 | |
111100000000 | |
111111111111 | |
111111111111 | |
PIECE | |
PIECE2 = <<PIECE | |
000000001111 | |
000000001111 | |
111111111111 | |
111111111111 | |
PIECE | |
PIECE3 = <<PIECE | |
11111111 | |
11111111 | |
11111111 | |
11111111 | |
PIECE | |
PIECE4 = <<PIECE | |
1111 | |
1111 | |
1111 | |
1111 | |
1111 | |
1111 | |
1111 | |
1111 | |
PIECE | |
PIECE5 = <<PIECE | |
000011110000 | |
000011110000 | |
111111111111 | |
111111111111 | |
PIECE | |
def write(x, y, text) | |
Curses.setpos(y, x) | |
Curses.addstr(text) | |
end | |
def draw_piece(x, y, piece, color=@color) | |
Curses.attron(color_pair(color)) | |
blocks = piece.split.map { |i| i.split(//) } | |
blocks.each_with_index do |row,i| | |
row.each_with_index do |c,j| | |
write(x+j, y+i, c) if c == "1" | |
end | |
end | |
Curses.attroff(color_pair(COLOR_RED)) | |
end | |
def move_piece(dx, dy) | |
return nil if @posX + dx < 0 | |
return nil if @posY + dy < 0 | |
max_x = @piece.split.max_by { |i| i.size }.size | |
return nil if (@posX + dx + max_x) >= @width | |
max_y = @piece.split.size | |
# Piece has reached the bottom | |
if (@posY + dy + max_y) > @height | |
@bottom_pieces << [@posX, @posY, @piece, @color] | |
@posX = @width / 2 | |
@posY = 0 | |
@piece = @pieces.sample | |
@color = @colors.sample | |
end | |
@posX += dx | |
@posY += dy | |
end | |
def init_colors | |
Curses.init_pair(COLOR_RED, COLOR_RED, COLOR_RED) | |
Curses.init_pair(COLOR_CYAN, COLOR_CYAN, COLOR_CYAN) | |
Curses.init_pair(COLOR_GREEN, COLOR_GREEN, COLOR_GREEN) | |
@colors = [COLOR_RED,COLOR_CYAN,COLOR_GREEN] | |
end | |
def init_screen | |
Curses.noecho | |
Curses.curs_set(0) | |
Curses.init_screen | |
Curses.start_color | |
init_colors | |
Curses.stdscr.keypad(true) | |
begin | |
yield | |
ensure | |
Curses.close_screen | |
end | |
end | |
init_screen do | |
@width = Curses.cols | |
@height = Curses.lines | |
@posX = @width / 2 | |
@posY = 0 | |
@pieces = [PIECE1, PIECE2, PIECE3, PIECE4, PIECE5] | |
@piece = @pieces.sample | |
@bottom_pieces = [] | |
@color = @colors.sample | |
draw_piece(@posX, @posY, @piece) | |
loop do | |
begin | |
Timeout::timeout(1) do | |
case Curses.getch | |
when Curses::Key::UP then move_piece(0,-4) | |
when Curses::Key::DOWN then move_piece(0,4) | |
when Curses::Key::LEFT then move_piece(-4,0) | |
when Curses::Key::RIGHT then move_piece(4,0) | |
end | |
end | |
rescue Timeout::Error | |
move_piece(0,4) | |
end | |
Curses.clear | |
draw_piece(@posX, @posY, @piece) | |
@bottom_pieces.each { |p| draw_piece(*p) } | |
Curses.refresh | |
end | |
end |
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