public override void Execute(RobotController target, InstructionExecutor executor)
{
instructionExecutor = executor;
robot = target;
executeNext = false;
var currentX = robot.X;
var currentZ = robot.Z;
switch (moveDirection)
{
case Directions.Up:
currentX++;
break;
case Directions.Down:
currentX--;
break;
case Directions.Left:
currentZ++;
break;
case Directions.Right:
currentZ--;
break;
}
// Find object at the given direction
var obj = softwareLevelGenerator.GetObject(currentX, currentZ);
if (obj == null)
{
throw new InstructionException("Could not find object " + moveDirection.ToString());
return;
}
var arrayElement = obj.GetComponent <IndexElement>();
if (arrayElement == null)
{
throw new InstructionException("Could not find object " + moveDirection.ToString());
return;
}
// Jump to the index of the object adjacent
targetPos = softwareLevelGenerator.IndexLocation("a" + arrayElement.Value);
var didMove = robot.MoveTo(Vector3.zero, "a" + arrayElement.Value);
if (!didMove)
{
throw new InstructionException("Could not move to " + arrayElement.Value);
}
// Increment index element
arrayElement.Value++;
}
// Move to the specified coordinate or index of the an array in the scene
// If it is coordinate, it will use the destination vector3
// If destination is Vector3.zero, it will use the array concatenate with index as identifier for accessing the array
// e.g "a" + 0 will access index 0 of array a
public bool MoveTo(Vector3 destination, string index)
{
try
{
// Check if is index or coordinate access
var dest = destination;
if (destination == Vector3.zero)
{
dest = generator.IndexLocation(index);
if (dest == Vector3.zero)
{
return(false);
}
}
// Calculate the required distance to translate for x and z
var currentPos = isoTransform.Position;
int x = (int)(dest.x - currentPos.x);
int z = (int)(dest.z - currentPos.z);
// This is for storing ths sequence of paths to traverse through
Vector3[] path = new Vector3[Mathf.Abs(x) + Mathf.Abs(z) + 1];
path[0] = currentPos;
int count = 1;
// temp variables are used as a ghost for collision detection
int tempX = X;
int tempZ = Z;
bool moveX = true;
bool moveZ = true;
// Check z then x by default
Debug.Log("Trying z then x");
for (int i = 0; i < Mathf.Abs(z); i++)
{
tempZ = z < 0 ? --tempZ : ++tempZ;
if (generator.GetMapLayout(tempX, tempZ) == SoftwareLevelGenerator.Layout.EMPTY)
{
path[count] = new Vector3(tempX - 1, Y, tempZ - 1);
count++;
}
else
{
moveZ = false;
}
}
// Traverse through x
for (int i = 0; i < Mathf.Abs(x); i++)
{
tempX = x < 0 ? --tempX : ++tempX;
// Check for collision and add to path
if (generator.GetMapLayout(tempX, tempZ) == SoftwareLevelGenerator.Layout.EMPTY)
{
path[count] = new Vector3(tempX - 1, Y, tempZ - 1);
count++;
}
else
{
moveX = false;
}
}
// Check if collision exist in z then x path, if it does the reset the path and try path x then z
if (!moveZ || !moveX)
{
moveZ = true;
moveX = true;
Debug.Log("No z then x path, trying x then z");
path = new Vector3[Mathf.Abs(x) + Mathf.Abs(z) + 1];
path[0] = currentPos;
count = 1;
// temp variables are used as a ghost for collision detection
tempX = X;
tempZ = Z;
// Traverse through x
for (int i = 0; i < Mathf.Abs(x); i++)
{
tempX = x < 0 ? --tempX : ++tempX;
// Check for collision and add to path
if (generator.GetMapLayout(tempX, tempZ) == SoftwareLevelGenerator.Layout.EMPTY)
{
path[count] = new Vector3(tempX - 1, Y, tempZ - 1);
count++;
}
else
{
moveX = false;
}
}
for (int i = 0; i < Mathf.Abs(z); i++)
{
tempZ = z < 0 ? --tempZ : ++tempZ;
if (generator.GetMapLayout(tempX, tempZ) == SoftwareLevelGenerator.Layout.EMPTY)
{
path[count] = new Vector3(tempX - 1, Y, tempZ - 1);
count++;
}
else
{
moveZ = false;
}
}
}
// If no collision then run it as a co-routine
if (moveX && moveZ)
{
StartCoroutine(Shift(path));
return(true);
}
}
catch (NullReferenceException e)
{
return(false);
}
catch (IndexOutOfRangeException e)
{
return(false);
}
Debug.Log("COLLIDE");
return(false);
}