Face something

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.

Author

Sarah Bauduin

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)