func TestFov(t *testing.T) {
mf := space.NewManifold()
mf.SetPortal(space.Loc(10, 11, 1), space.Port(20, 20, 20))
seen := map[image.Point]space.Location{}
// Impassable barrier on every zone at x == 11
blockFn := func(loc space.Location) bool { return loc.X == 11 }
markFn := func(pt image.Point, loc space.Location) {
seen[pt] = loc
}
fov := New(blockFn, markFn, mf)
fov.Run(space.Loc(10, 10, 1), 4)
if _, ok := seen[image.Pt(-2, 0)]; !ok {
t.Fail()
}
if _, ok := seen[image.Pt(2, 0)]; ok {
// Should be stopped by blockFn barrier
t.Fail()
}
if loc, ok := seen[image.Pt(0, 2)]; ok {
// This one should be through the portal.
if loc.Zone != 20 {
t.Fail()
}
} else {
t.Fail()
}
}
func New() (world *World) {
world = new(World)
world.Manifold = space.NewManifold()
world.terrain = make(map[space.Location]Terrain)
world.Spatial = space.NewIndex()
world.actors = []entity.Entity{}
world.nextActors = []entity.Entity{}
return
}