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function! space_vlaze#game#Init()
let s:loop = 1
let s:start_time = localtime()
let s:ticks = 1
call space_vlaze#game#SetupWindow()
call space_vlaze#colors#Initialize()
call space_vlaze#game#InitializeBoard()
call space_vlaze#mappings#Initialize()
call space_vlaze#score#Initialize()
call space_vlaze#life#Initialize()
while s:loop ==# 1
sleep 50ms
call space_vlaze#mappings#Listen()
call space_vlaze#enemy#AddEnemiesToBoard()
call space_vlaze#game#RenderBoard()
call space_vlaze#score#RenderScore()
call space_vlaze#life#RenderLives()
let s:ticks += 1
endwhile
endfunction
function! space_vlaze#game#SetupWindow()
setlocal buftype=nofile
setlocal bufhidden=wipe
setlocal noswapfile
setlocal nonumber
setlocal nolist
setlocal nowrap
setlocal nocursorline
setlocal nocursorcolumn
setlocal nolazyredraw
endfunction
function! space_vlaze#game#InitializeBoard()
call space_vlaze#game#SetupBoard()
call space_vlaze#game#RenderBoard()
endfunction
function! space_vlaze#game#SetupBoard()
let s:board = []
let s:BOARD_HEIGHT = 20
let s:BOARD_WIDTH = 80
call space_vlaze#player#SetPlayerX(s:BOARD_WIDTH / 2 - 1)
call space_vlaze#player#SetPlayerY(s:BOARD_HEIGHT / 2)
" Create 20-row by 80-column board initialised with spaces
let i = 0
while i < s:BOARD_HEIGHT
let s:board = add(s:board, [])
let j = 0
while j < s:BOARD_WIDTH
let s:board[i] = add(s:board[i], ' ')
let j += 1
endwhile
let i += 1
endwhile
" Initialise player to the middle of the board
let s:board[space_vlaze#player#PlayerY()][space_vlaze#player#PlayerX()] = space_vlaze#player#PlayerCharacter()
endfunction
function! space_vlaze#game#RenderBoard()
let i = 1
while i <= s:BOARD_HEIGHT
call setline(i, join(s:board[i - 1], ''))
let i += 1
endwhile
redraw!
endfunction
function! space_vlaze#game#Board()
return s:board
endfunction
function! space_vlaze#game#BoardCell(y, x)
return s:board[a:y][a:x]
endfunction
function! space_vlaze#game#SetBoardCell(y, x, value)
if space_vlaze#game#IsWithinBoard(a:y, a:x)
let s:board[a:y][a:x] = a:value
endif
endfunction
function! space_vlaze#game#ClearBoardCell(y, x)
call space_vlaze#game#SetBoardCell(a:y, a:x, ' ')
endfunction
function! space_vlaze#game#IsBoardCellEmpty(y, x)
if space_vlaze#game#IsWithinBoard(a:y, a:x)
return s:board[a:y][a:x] ==# ' '
endif
endfunction
function! space_vlaze#game#IsWithinBoard(y, x)
return a:y >=# 0 && a:y <# s:BOARD_HEIGHT && a:x >=# 0 && a:x <# s:BOARD_WIDTH
endfunction
function! space_vlaze#game#BoardHeight()
return s:BOARD_HEIGHT
endfunction
function! space_vlaze#game#BoardWidth()
return s:BOARD_WIDTH
endfunction
function! space_vlaze#game#Ticks()
return s:ticks
endfunction
function! space_vlaze#game#Quit()
let s:loop = -1
endfunction
function! space_vlaze#game#Pause()
endfunction
function! space_vlaze#game#GameOver()
call space_vlaze#game#Quit()
let text = [
\ ['G', ' ', 'A', ' ', 'M', ' ', 'E'],
\ ['O', ' ', 'V', ' ', 'E', ' ', 'R'],
\ ]
" Put "Game Over" text in the middle of the board
let text_y = s:BOARD_HEIGHT / 2
let text_x = s:BOARD_WIDTH / 2 - 4
let text_x_orig = text_x
for line in text
for character in line
call space_vlaze#game#SetBoardCell(text_y, text_x, character)
let text_x += 1
endfor
let text_y += 1
let text_x = text_x_orig
endfor
call space_vlaze#game#RenderBoard()
call space_vlaze#leaderboard#SaveHighScore()
endfunction
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