# Reflecting Walls

When ocean waves hit a break wall or the side of a stationary ship, they reflect. In this example, the wall is at an angle of 15 degrees (slightly west of north) and passes through x=0, y=0 relative to the ocean origin (shown below is the portion of the ocean file relevant for this disturbance). Any waves hitting this infinitely long vertical wall will be reflected back. This is an effect which may be best seen in a time sequence, as the effect isn't always obvious in a still frame.

  `number_disturbances` `1`
  `render_disturbances black`
  `grid_type r` `eflect_wall`
  `x` `0`
  `y` `0`
  `angle` `15`
  `end`

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