Move heuristic comments into javadoc
Signed-off-by: Chris Cromer <chris@cromer.cl>
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@ -53,31 +53,26 @@ public interface PlayerAI extends Runnable, Constants {
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/**
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* The heuristic to get the distance between the start state and the end state
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*
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* Manhattan Distance
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* Used for 4 direction movements
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* h = abs (current_cell.x – goal.x) +
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* abs (current_cell.y – goal.y)
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*
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* Diagonal Distance
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* Used for 8 direction movements
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* h = max { abs(current_cell.x – goal.x),
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* abs(current_cell.y – goal.y) }
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*
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* Euclidean Distance
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* Used for distance between 2 points
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* h = sqrt ( (current_cell.x – goal.x)2 +
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* (current_cell.y – goal.y)2 )
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*
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* @param start The start state
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* @param goal The goal state
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* @return Returns the distance between the states
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*/
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default double heuristic(State start, State goal) {
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// Manhattan Distance
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// Used for 4 direction movements
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/*
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h = abs (current_cell.x – goal.x) +
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abs (current_cell.y – goal.y)
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*/
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// Diagonal Distance
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// Used for 8 direction movements
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/*
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h = max { abs(current_cell.x – goal.x),
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abs(current_cell.y – goal.y) }
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*/
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// Euclidean Distance
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// Used for distance between 2 points
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/*
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h = sqrt ( (current_cell.x – goal.x)2 +
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(current_cell.y – goal.y)2 )
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*/
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return Math.abs(start.getX() - goal.getX()) + Math.abs(start.getY() - goal.getY());
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}
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