public Vector3 FlowDirectionToVector(CellFlowDirection direction)
{
if (direction == CellFlowDirection.Up)
return new Vector3(0, 1);
if (direction == CellFlowDirection.Down)
return new Vector3(0, -1);
if (direction == CellFlowDirection.Left)
return new Vector3(-1, 0);
if (direction == CellFlowDirection.Right)
return new Vector3(1, 0);
return Vector3.zero;
}
public Cell getCellNeighbour(int x, int y, CellFlowDirection direction)
{
Vector3 dirVec = FlowDirectionToVector(direction);
if (isInBounds(new Vector2(x + (int)dirVec.x, y + (int)dirVec.y)))
return getCell(x + (int)dirVec.x, y + (int)dirVec.y);
return null;
}
public void UpdateMovement()
{
float dt = Time.deltaTime;
movement.cursor += dt * movement.speed;
movement.jitterPhase += dt / movement.jitterPeriod * Mathf.PI;
if (movement.cursor >= 1)
{
movement.cursor = 1;
int x = (int)movement.nextCell.x;
int y = (int)movement.nextCell.y;
Cell nextCell = worldGrid.getCell(x, y);
//Move in a random direction
CellFlowDirection[] dirs = new CellFlowDirection[] { };
int random = UnityEngine.Random.Range(0, 4);
if (random == 0)
dirs = new CellFlowDirection[] { CellFlowDirection.Up, CellFlowDirection.Right, CellFlowDirection.Down, CellFlowDirection.Left };
if (random == 1)
dirs = new CellFlowDirection[] { CellFlowDirection.Left, CellFlowDirection.Down, CellFlowDirection.Up, CellFlowDirection.Right };
if (random == 2)
dirs = new CellFlowDirection[] { CellFlowDirection.Down, CellFlowDirection.Left, CellFlowDirection.Right, CellFlowDirection.Up };
if (random == 3)
dirs = new CellFlowDirection[] { CellFlowDirection.Right, CellFlowDirection.Up, CellFlowDirection.Left, CellFlowDirection.Down };
for (int i = 0; i < 4; i++)
{
CellFlowDirection direction = dirs[i];
if ((nextCell.flow & direction) == direction)
{
Vector3 dirVec = worldGrid.FlowDirectionToVector(direction);
movement.cursor = 0;
movement.curCell = movement.nextCell;
movement.nextCell = new Vector2(x + dirVec.x, y + dirVec.y);
OnChangeCell(nextCell, x, y);
break;
}
}
}
}