First draft of Love puzzle game
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function make_board(size) | |
local board = { size = size } | |
setmetatable(board, { __tostring = board_tostring }) | |
for n = 0, size * size - 1 do | |
board[n] = 0 | |
end | |
return board | |
end | |
function populate_board(board, filled, seed) | |
local size = board.size | |
if seed then math.randomseed(seed) end | |
filled = filled or size * size * 3 / 4 | |
local function rand() | |
local c | |
repeat c = math.random(size * size) - 1 until board[c] == 0 | |
return c | |
end | |
if filled > 0 then | |
for _,v in ipairs{'a','b','c','d'} do board[rand()] = v end | |
for n = 1, filled-4 do | |
board[rand()] = math.random(4) | |
end | |
return fall(board) | |
end | |
end | |
function board_tostring(board) | |
local lines = {} | |
local size = board.size | |
for y = 0, size - 1 do | |
local line = "|" | |
for x = 0, size - 1 do | |
line = line .. " " .. board[x+y*size] | |
end | |
table.insert(lines, line .. " |") | |
end | |
return table.concat(lines,"\n") | |
end | |
function fall(board) | |
local size = board.size | |
local new_board = make_board(size, 0) | |
local function fall_column(col) | |
local dest = size - 1 | |
for y = size-1, 0, -1 do | |
if board[y*size + col] ~= 0 then | |
new_board[dest*size + col] = board[y*size + col] | |
dest = dest - 1 | |
end | |
end | |
end | |
for x=0, size-1 do | |
fall_column(x) | |
end | |
return new_board | |
end | |
function rotate(board) | |
local size = board.size | |
local new_board = make_board(size, 0) | |
for y = 0, size-1 do | |
local dest_col = size - 1 - y | |
for n = 0, size-1 do | |
new_board[n*size + dest_col] = board[y*size + n] | |
end | |
end | |
return new_board | |
end | |
function crush(board) | |
local size = board.size | |
local new_board = make_board(size, 0) | |
local crushers = {'a','b','c','d'} | |
for n=0, size-1 do | |
new_board[n] = board[n] | |
end | |
for n = size, size*size - 1 do | |
if board[n-size] == crushers[board[n]] then | |
new_board[n] = 0 | |
else | |
new_board[n] = board[n] | |
end | |
end | |
return new_board | |
end | |
function game() | |
local board = populate_board(make_board(8)) | |
local line = nil | |
repeat | |
print(board) | |
line = io.read() | |
local valid = false | |
if line == 'r' then | |
valid, board = true, rotate(board) | |
elseif line == 'l' then | |
valid, board = true, rotate(rotate(rotate(board))) | |
elseif line == 'exit' then | |
valid = true | |
end | |
if valid then | |
board = fall(crush(fall(board))) | |
else | |
print "Didn't understand that. Type 'l', 'r', or 'exit'." | |
end | |
until line == 'exit' | |
end |
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require 'fall' | |
rotation_speed = 0 | |
angle = 0 | |
function love.load() | |
love.graphics.setBackgroundColor(82,82,128) | |
math.randomseed(love.timer.getMicroTime()) | |
board = populate_board(make_board(8)) | |
img = love.graphics.newImage("arrow_blocks.png") | |
tiles = {} | |
local tile_dims = {48, 48, 48*4, 48*2} -- width, height, image dimensions | |
for k,v in pairs{'a','b','c','d'} do | |
tiles[k] = love.graphics.newQuad(48*(k-1), 0, unpack(tile_dims)) | |
tiles[v] = love.graphics.newQuad(48*(k-1), 48, unpack(tile_dims)) | |
end | |
end | |
function love.draw() | |
local g = love.graphics | |
local w, h = g.getWidth(), g.getHeight() | |
local left, top = w/2 - 48*board.size/2, h/2 - 48*board.size/2 | |
g.translate(w/2, h/2) | |
g.rotate(angle) | |
g.translate(-w/2,-h/2) | |
for n=0, board.size * board.size - 1 do | |
local x, y = n % board.size, math.floor(n / board.size) | |
if board[n] ~= 0 then | |
g.drawq(img, tiles[board[n]], | |
left + x*48, | |
top + y*48) | |
end | |
end | |
end | |
function love.mousepressed(x, y, btn) | |
if rotation_speed ~= 0 then return | |
elseif btn == 'l' then rotation_speed = -2 | |
elseif btn == 'r' then rotation_speed = 2 | |
end | |
end | |
function love.update(dt) | |
angle = angle + rotation_speed * dt | |
if rotation_speed > 0 and angle >= math.pi/2 then | |
board, rotation_speed, angle = rotate(board), 0, 0 | |
elseif rotation_speed < 0 and angle <= -math.pi/2 then | |
board, rotation_speed, angle = rotate(rotate(rotate(board))), 0, 0 | |
end | |
end |
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