انباشتن سیلابی

Flood-fill (node, target-color, replacement-color):
 1. If the color of node is not equal to target-color, return.
 2. Set the color of node to replacement-color.
 3. Perform Flood-fill (one step to the west of node, target-color, replacement-color).
    Perform Flood-fill (one step to the east of node, target-color, replacement-color).
    Perform Flood-fill (one step to the north of node, target-color, replacement-color).
    Perform Flood-fill (one step to the south of node, target-color, replacement-color).
 4. Return.

Flood-fill (node, target-color, replacement-color):
 1. Set Q to the empty queue.
 2. Add node to the end of Q.
 4. While Q is not empty:
 5.     Set n equal to the last element of Q.
 6.     Remove last element from Q.
 7.     If the color of n is equal to target-color:
 8.         Set the color of n to replacement-color.
 9.         Add west node to end of Q.
 10.        Add east node to end of Q.
 11.        Add north node to end of Q.
 12.        Add south node to end of Q.
 13. Return.

Flood-fill (node, target-color, replacement-color):
 1. Set Q to the empty queue.
 2. If the color of node is not equal to target-color, return.
 3. Add node to Q.
 4. For each element N of Q:
 5.     If the color of N is equal to target-color:
 6.         Set w and e equal to N.
 7.         Move w to the west until the color of the node to the west of w no longer matches target-color.
 8.         Move e to the east until the color of the node to the east of e no longer matches target-color.
 9.         For each node n between w and e:
10.             Set the color of n to replacement-color.
11.             If the color of the node to the north of n is target-color, add that node to Q.
12.             If the color of the node to the south of n is target-color, add that node to Q.
13. Continue looping until Q is exhausted.
14. Return.