01 Fragment

# A keyframe list is a recipe read top to bottom. Each delta says "change
# the transform THIS much, over THIS long." Deltas stack: the entity ends
# each step where the last one left it, then the next step begins from there.
Leg1 := keyframed_movement_delta:
    Duration := 2.0
    Transform := transform:
        Translation := vector3{ Forward := 400.0, Left := 0.0, Up := 0.0 }
Leg2 := keyframed_movement_delta:
    Duration := 2.0
    Transform := transform:
        Translation := vector3{ Forward := 0.0, Left := 400.0, Up := 0.0 }