public void Move(Island island, float movementProbability)
{
if (island.RandFloat(0f, 1f) < movementProbability) {
var direction = island.RandInt(0, 4);
switch (direction) {
case 0:
if (island.IsWalkableAndAvailable(row, column - 1))
column -= 1;
break;
case 1:
if (island.IsWalkableAndAvailable(row, column + 1))
column += 1;
break;
case 2:
if (island.IsWalkableAndAvailable(row + 1, column))
row += 1;
break;
case 3:
if (island.IsWalkableAndAvailable(row - 1, column))
row -= 1;
break;
}
}
}
