// Defines spawn position based on prefab type and chosen lane
private Vector3 SpawnPosition(GameObject prefab, StreetLane lane)
{
float yPosition;
switch (prefab.tag)
{
case "Cone":
yPosition = -0.5f;
break;
default:
yPosition = 0f;
break;
}
switch (lane)
{
case StreetLane.Left:
return(new Vector3(-6f, yPosition, zPosition));
case StreetLane.Middle:
return(new Vector3(0f, yPosition, zPosition));
case StreetLane.Right:
return(new Vector3(6f, yPosition, zPosition));
default:
return(new Vector3(0f, 0f, 0f));
}
}
public GameObject PlaceVehicle(GameObject vehiclePrefab, Vector3 buildingCoordinates)
{
StreetLane lane = transform.InverseTransformPoint(buildingCoordinates).x > 0 ? StreetLane.Right : StreetLane.Left;
_laneStep = transform.localScale.x / 8;
_vehicleInstance = Instantiate(vehiclePrefab, transform.TransformPoint(new Vector3((int)lane * _laneStep, 3)), transform.localRotation);
if (Math.Abs(transform.rotation.y) > 0.1f)
{
_vehicleInstance.transform.position = new Vector3(buildingCoordinates.x, _vehicleInstance.transform.position.y, _vehicleInstance.transform.position.z);
_vehicleInstance.transform.rotation = Quaternion.Euler(new Vector3(0, -_vehicleInstance.transform.eulerAngles.y, 0));
}
else
{
_vehicleInstance.transform.position = new Vector3(_vehicleInstance.transform.position.x, _vehicleInstance.transform.position.y, buildingCoordinates.z);
}
return(_vehicleInstance);
}
// Thread for spwaning obstacles
private IEnumerator Spawn()
{
yield return(new WaitForSeconds(2f));
System.Random random = new System.Random();
System.Array lanes = System.Enum.GetValues(typeof(StreetLane));
while (true)
{
GameObject prefab = obstaclePrefabs[random.Next(obstaclePrefabs.Length)];
StreetLane lane = (StreetLane)lanes.GetValue(random.Next(lanes.Length));
Vector3 position = SpawnPosition(prefab, lane);
Quaternion rotation = SpawnRotation(prefab);
Instantiate(prefab, position, rotation, transform);
yield return(new WaitForSeconds(spawnInterval));
spawnInterval = System.Math.Max(spawnInterval - 1f, 5f);
}
}
// Update is called once per frame
void Update()
{
// Updates speed
speed += Input.GetAxis("Vertical") * acceleration * Time.deltaTime;
speed -= friction * Time.deltaTime;
speed = Mathf.Clamp(speed, 0, 20);
speedText.text = "Speed: " + (int)(speed * 18 / 5) + " km/h";
if (Time.deltaTime > 0f)
{
// Moves according to user input
Vector3 position = transform.position;
if (Input.GetKeyUp("left") || Input.GetKeyUp("a"))
{
if (CameraWithinRange(270f, 360f) || CameraWithinRange(0f, 1.5f))
{
position.x -= 6f;
if (_lane == StreetLane.Middle)
{
_lane = StreetLane.Left;
}
else if (_lane == StreetLane.Right)
{
_lane = StreetLane.Middle;
}
}
else if (position.x >= 0f)
{
gameController.GameOver("You must always check the rearview before making a turn!");
}
}
else if (Input.GetKeyUp("right") || Input.GetKeyUp("d"))
{
if (CameraWithinRange(19f, 90f))
{
position.x += 6f;
if (_lane == StreetLane.Middle)
{
_lane = StreetLane.Right;
}
else if (_lane == StreetLane.Left)
{
_lane = StreetLane.Middle;
}
}
else if (position.x <= 0f)
{
gameController.GameOver("You must always check the rearview before making a turn!");
}
}
position.x = Mathf.Clamp(position.x, -6f, 6f);
transform.position = position;
}
// Checks game over
if (speed < 5f)
{
gameController.GameOver("You shouldn't move that slow on a highway!");
}
}
// Start is called before the first frame update
void Start()
{
gameController = FindObjectOfType(typeof(GameController)) as GameController;
_lane = StreetLane.Middle;
}