--Average speed real-time calculator by ThunderAxe31 for GBA Crash Bandicoot - The Huge Adventure
--This scripts show the overall movement speed of Crash, making an average value based from script launch

player_x_addr = 0x010A14
player_y_addr = 0x010A18
frames_amount = 0
player_x = 0
player_x_old = 0
speed_x_average = 0
player_y = 0
player_y_old = 0
speed_y_average = 0
x = {}
y = {}

if memory.usememorydomain("EWRAM") then

  player_x = memory.read_u32_le(player_x_addr)
  player_y = memory.read_u32_le(player_y_addr)
  console.log("Starting script at frame: " .. emu.framecount() .. " with X: " .. player_x .. ", Y: " .. player_y)
  emu.frameadvance()

  while true do
    player_x_old = player_x
    player_x = memory.read_u32_le(player_x_addr)
    player_y_old = player_y
    player_y = memory.read_u32_le(player_y_addr)

    frames_amount = frames_amount + 1

    speed_x_average = ( ( speed_x_average * ( frames_amount - 1 ) ) +player_x -player_x_old ) / frames_amount
    speed_y_average = ( ( speed_y_average * ( frames_amount - 1 ) ) +player_y -player_y_old ) / frames_amount

    for i=25, 1, -1 do
      x[i]=x[i-1]
      y[i]=y[i-1]
      gui.pixelText(0, 0+i*6, x[i])
      gui.pixelText(175, 0+i*6, y[i])
    end

    x[0] = speed_x_average
    y[0] = speed_y_average

    gui.pixelText(0, 0, x[0])
    gui.pixelText(175, 0, y[0])

    emu.frameadvance()
  end
else
  console.log("Error: failed to set EWRAM memory domain")
end