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Implement game tree navigation #237

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savanni merged 6 commits from savanni/tree-navigation into main 2024-05-23 13:04:25 +00:00
Conversation 0 Commits 6 Files Changed 15 +37 -139
2 changed files with 37 additions and 139 deletions
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41
otg/core/src/types.rs
View File

@ -243,6 +243,39 @@ pub struct Tree<T> {
} }
*/ */
// https://llimllib.github.io/pymag-trees/
// I want to take advantage of the Wetherell Shannon algorithm, but I want some variations. In
// their diagram, they got a tree that looks like this.
//
// O
// |\
// O O
// |\ \ \
// O O O O
// |\ |\
// O O O O
//
// In the same circumstance, what I want is this:
//
// O--
// | \
// O O
// |\ |\
// O O O O
// |\
// O O
//
// In order to keep things from being overly smooshed, I want to ensure that if a branch overlaps
// with another branch, there is some extra drawing space. This might actually be similar to adding
// the principal that "A parent should be centered over its children".
//
// So, given a tree, I need to know how many children exist at each level. Then I build parents
// atop the children. At level 3, I have four children, and that happens to be the maximum width of
// the graph.
//
// A bottom-up traversal:
// - Figure out the number of nodes at each depth
pub struct DepthTree(nary_tree::Tree<SizeNode>); pub struct DepthTree(nary_tree::Tree<SizeNode>);
impl Deref for DepthTree { impl Deref for DepthTree {
@ -621,7 +654,7 @@ mod test {
))) )))
.node_id(); .node_id();
let node_d = game_tree let _node_d = game_tree
.get_mut(node_c) .get_mut(node_c)
.unwrap() .unwrap()
.append(GameNode::MoveNode(MoveNode::new( .append(GameNode::MoveNode(MoveNode::new(
@ -630,7 +663,7 @@ mod test {
))) )))
.node_id(); .node_id();
let node_e = game_tree let _node_e = game_tree
.get_mut(node_c) .get_mut(node_c)
.unwrap() .unwrap()
.append(GameNode::MoveNode(MoveNode::new( .append(GameNode::MoveNode(MoveNode::new(
@ -639,7 +672,7 @@ mod test {
))) )))
.node_id(); .node_id();
let node_f = game_tree let _node_f = game_tree
.get_mut(node_c) .get_mut(node_c)
.unwrap() .unwrap()
.append(GameNode::MoveNode(MoveNode::new( .append(GameNode::MoveNode(MoveNode::new(
@ -648,7 +681,7 @@ mod test {
))) )))
.node_id(); .node_id();
let node_g = game_tree let _node_g = game_tree
.get_mut(node_a) .get_mut(node_a)
.unwrap() .unwrap()
.append(GameNode::MoveNode(MoveNode::new( .append(GameNode::MoveNode(MoveNode::new(

135
otg/gtk/src/components/review_tree.rs
View File

@ -118,138 +118,3 @@ impl ReviewTree {
} }
} }
// https://llimllib.github.io/pymag-trees/
// I want to take advantage of the Wetherell Shannon algorithm, but I want some variations. In
// their diagram, they got a tree that looks like this.
//
// O
// |\
// O O
// |\ \ \
// O O O O
// |\ |\
// O O O O
//
// In the same circumstance, what I want is this:
//
// O--
// | \
// O O
// |\ |\
// O O O O
// |\
// O O
//
// In order to keep things from being overly smooshed, I want to ensure that if a branch overlaps
// with another branch, there is some extra drawing space. This might actually be similar to adding
// the principal that "A parent should be centered over its children".
//
// So, given a tree, I need to know how many children exist at each level. Then I build parents
// atop the children. At level 3, I have four children, and that happens to be the maximum width of
// the graph.
//
// A bottom-up traversal:
// - Figure out the number of nodes at each depth
#[cfg(test)]
mod test {
use super::*;
use sgf::{Color, GameNode, Move, MoveNode};
#[test]
fn it_calculates_width_for_single_node() {
let node = GameNode::MoveNode(MoveNode::new(Color::Black, Move::Move("dp".to_owned())));
assert_eq!(node_width(&node), 1);
}
#[test]
fn it_calculates_width_for_node_with_children() {
let mut node_a = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let node_b = GameNode::MoveNode(MoveNode::new(Color::Black, Move::Move("dp".to_owned())));
let node_c = GameNode::MoveNode(MoveNode::new(Color::Black, Move::Move("dp".to_owned())));
let node_d = GameNode::MoveNode(MoveNode::new(Color::Black, Move::Move("dp".to_owned())));
node_a.children.push(node_b);
node_a.children.push(node_c);
node_a.children.push(node_d);
assert_eq!(node_width(&GameNode::MoveNode(node_a)), 3);
}
// A
// B E
// C D
#[test]
fn it_calculates_width_with_one_deep_child() {
let mut node_a = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let mut node_b = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let node_c = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let node_d = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let node_e = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
node_b.children.push(GameNode::MoveNode(node_c));
node_b.children.push(GameNode::MoveNode(node_d));
assert_eq!(node_width(&GameNode::MoveNode(node_b.clone())), 2);
node_a.children.push(GameNode::MoveNode(node_b));
node_a.children.push(GameNode::MoveNode(node_e));
assert_eq!(node_width(&GameNode::MoveNode(node_a)), 3);
}
// A
// B G H
// C I
// D E F
#[test]
fn it_calculates_a_complex_tree() {
let mut node_a = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let mut node_b = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let mut node_c = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let node_d = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let node_e = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let node_f = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let node_g = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let mut node_h = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let node_i = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
node_c.children.push(GameNode::MoveNode(node_d));
node_c.children.push(GameNode::MoveNode(node_e));
node_c.children.push(GameNode::MoveNode(node_f));
assert_eq!(node_width(&GameNode::MoveNode(node_c.clone())), 3);
node_b.children.push(GameNode::MoveNode(node_c));
assert_eq!(node_width(&GameNode::MoveNode(node_b.clone())), 3);
node_h.children.push(GameNode::MoveNode(node_i));
node_a.children.push(GameNode::MoveNode(node_b));
node_a.children.push(GameNode::MoveNode(node_g));
node_a.children.push(GameNode::MoveNode(node_h));
// This should be 4 if I were collapsing levels correctly, but it is 5 until I return to
// figure that step out.
assert_eq!(node_width(&GameNode::MoveNode(node_a.clone())), 5);
}
#[test]
fn a_nodes_children_get_separate_columns() {
let mut node_a = MoveNode::new(Color::Black, Move::Move("dp".to_owned()));
let node_b = GameNode::MoveNode(MoveNode::new(Color::Black, Move::Move("dp".to_owned())));
let node_c = GameNode::MoveNode(MoveNode::new(Color::Black, Move::Move("dp".to_owned())));
let node_d = GameNode::MoveNode(MoveNode::new(Color::Black, Move::Move("dp".to_owned())));
node_a.children.push(node_b.clone());
node_a.children.push(node_c.clone());
node_a.children.push(node_d.clone());
assert_eq!(
node_children_columns(&GameNode::MoveNode(node_a)),
vec![0, 1, 2]
);
}
#[test]
fn text_renderer() {
assert!(false);
}
}