[1.1]Jumping Game

local playery, score, objects, maxx, maxy = 2, 0, {}, term.getSize()
local objects = { {maxx - 2, math.random( 1, 4 )} }

local function newObject()
    local last = objects[ #objects ]
    if last[ 2 ] <= 2 then
        objects[ #objects + 1 ] = {last[1] + math.random( 5, 10 ), math.random( 1, 4 )}
    else
        objects[ #objects + 1 ] = {last[1] + math.random( 15, 20 ), math.random( 1, 4 )}
    end
end

local function drawPlayer()
  term.setCursorPos( 2, math.floor( maxy - playery ) )
  term.setBackgroundColor( colors.blue )
  term.setTextColor( colors.lightBlue )
  term.write( "$" )
end

local function drawField()
  term.setTextColor( colors.lime )
  term.setBackgroundColor( colors.green )
  term.setCursorPos( 1, maxy - 1 )
  term.write( string.rep( "=", maxx ) )
end

local function drawScore()
  term.setTextColor( colors.black )
  term.setBackgroundColor( colors.white )
  term.setCursorPos( 1, 1 )
  term.write( score )
end

local function drawObjects()
  term.setBackgroundColor( colors.red )
  for k, v in pairs( objects ) do
    for i = 1, v[ 2 ] do
      term.setCursorPos( v[1], maxy - i - 1 )
      term.write( " " )
    end
  end
end

local function gameOver()
  local text = "GAME OVER"
  term.setCursorPos( math.ceil( (maxx-#text)/2 ), maxy/2 )
  term.write( text )
  os.pullEvent( "key" )
  term.setBackgroundColor( colors.black )
  term.clear()
  term.setCursorPos( 1, 1 )
  error()
end


local function draw()
  term.setBackgroundColor( colors.black )
  for i = 2, 9 do
    term.setCursorPos( 1, maxy - i )
    term.clearLine()
  end
  drawObjects()
  drawPlayer()
  drawScore()
end

term.setBackgroundColor( colors.black )
term.clear()
drawField()

repeat
    newObject()
until #objects == 5

draw()
sleep( 1 )
local id = os.startTimer( 0.1 )
local isJumping = false
local doubleJump = false
local jumpValue = 0

while true do
  local event = {os.pullEvent()}
  if event[ 1 ] == "timer" and event[ 2 ] == id then
    id = os.startTimer( 0.1 - (score/20000) )
    score = score + 1
    for k, v in ipairs( objects ) do
      objects[ k ][ 1 ] = v[ 1 ] - 1
      if objects[ k ][1] < 1 then
        table.remove( objects, k )
        newObject()
      elseif objects[ k ][ 1 ] == 2 then
        if math.ceil( playery - 1 ) <= objects[ k ][ 2 ] then
          draw()
          gameOver()
        end
      end
    end
    if isJumping then
      playery = playery + jumpValue
      jumpValue = jumpValue * 0.7
    end
    playery = math.max( 2, playery - 1 )
    if playery < 2.5 then
      jumpValue = 2
      isJumping = false
      doubleJump = false
    end
    draw()
  elseif event[ 1 ] == "key" and event[ 2 ] == keys.space then
    if isJumping and not doubleJump then
      doubleJump = true
      jumpValue = jumpValue + 1.5
    elseif not isJumping then
      isJumping = true
      jumpValue = 2.5
    end
  end
end