-- Create the trigger
trigger = ScriptTrigger()
trigger:setName("spaceship_flight_trigger")
trigger:setScript("spaceship_flight.lua")
trigger:setFunction("tick")
trigger:setAbsCoor(2500, 0, -1695)
trigger:setTarget("SPACE_CRAFT")
trigger:setRadius(150)

-- Add Objects
thisscript:addObject("GameWorld", "Ambush_at_Uranus")
thisscript:addObject("Spacecraft2D", "SPACE_CRAFT")
thisscript:addObject("Gate", "Hypergate")
thisscript:addObject("SpaceShip", "TerranCruizer")
-- Global Variables
horizontalmode = false
gateReached = false
terrancriuseratgate = false


function dist( x1,x2,x3, y1,y2,y3 )
  return math.sqrt( (x1-y1)^2 + (x2-y2)^2 + (x3-y3)^2 )
end


function observeSpaceCraft()
  SPACE_CRAFTX = SPACE_CRAFT:getAbsCoorX()
  SPACE_CRAFTY = SPACE_CRAFT:getAbsCoorY()
  SPACE_CRAFTZ = SPACE_CRAFT:getAbsCoorZ()

  distance = dist(SPACE_CRAFTX,SPACE_CRAFTY,SPACE_CRAFTZ,6053.186035, -2.306574, -1704.989624)

  if distance < 100 then
    Hypergate:destroy()
  end

end

function tick(timestep)
  observeSpaceCraft()

  if not horizontalmode then
    Ambush_at_Uranus:setPlaymode("Horizontal")
    Ambush_at_Uranus:setSoundtrack("sound/music/00-luke_grey_-_hypermode.ogg")
    SPACE_CRAFT:setAirFriction(3.0)
    horizontalmode = true
  end

  if not terrancriuseratgate then
    dx = 70 * timestep
    dy = 0 * timestep
    dz = 0 * timestep

    TerranCruizerX = TerranCruizer:getAbsCoorX()
    TerranCruizerY = TerranCruizer:getAbsCoorY()
    TerranCruizerZ = TerranCruizer:getAbsCoorZ()

    distance = dist(TerranCruizerX,TerranCruizerY,TerranCruizerZ,6053.186035, -2.306574, -1704.989624)

    if distance < 100  then
      TerranCruizer:hide()
      dx = 5000
      terrancriuseratgate = true
    end

    TerranCruizer:setAbsCoor(TerranCruizerX + dx, TerranCruizerY + dy, TerranCruizerZ + dz)

  end

 return false
end