Set the `turtles`

' `heading`

towards `agents2`

.

```
face(turtles, agents2, world, torus = FALSE)
# S4 method for agentMatrix,matrix
face(turtles, agents2, world, torus = FALSE)
```

## Arguments

- turtles
`AgentMatrix`

object representing the moving `agents`

.

- agents2
Matrix (`ncol`

= 2) with the first column `pxcor`

and the second
column `pycor`

representing the `patches`

coordinates, or

```
`AgentMatrix` object representing the moving `agents`, or
Matrix (`ncol` = 2) with the first column `x` and the second column
`y` representing locations coordinates.
```

- world
`WorldMatrix`

or `worldArray`

object.

- torus
Logical to determine if the `world`

is wrapped. Default is
`torus = FALSE`

.

## Value

`AgentMatrix`

representing the `turtles`

with updated `headings`

.

## Details

The number of agents/locations in `agents2`

must be equal to 1 or
to the length of `turtles`

.

```
If `torus = FALSE`, `world` does not need to be provided.
If `torus = TRUE` and the distance from one `turtles` to
its corresponding agent/location `agents2` is smaller around the
sides of the `world` than across it, then the direction to the agent/location
`agents2` going around the sides of the `world` is given to the `turtle`.
If a turtle is facing its own location, its heading does not change.
```

## References

Wilensky, U. 1999. NetLogo. http://ccl.northwestern.edu/netlogo/.
Center for Connected Learning and Computer-Based Modeling,
Northwestern University. Evanston, IL.

## Examples

```
w1 <- createWorld(
minPxcor = 0, maxPxcor = 4, minPycor = 0, maxPycor = 4,
data = runif(25)
)
t1 <- createTurtles(n = 10, coords = randomXYcor(w1, n = 10))
plot(w1)
points(t1, col = of(agents = t1, var = "color"), pch = 16)
t1 <- face(turtles = t1, agents2 = cbind(x = 0, y = 0))
t1 <- fd(turtles = t1, dist = 0.5)
points(t1, col = of(agents = t1, var = "color"), pch = 16)
```