implement stack-based conversation position
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parent
d990726932
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25
src/chat.rs
25
src/chat.rs
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@ -127,7 +127,16 @@ impl ChatDB {
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// returns false if the advanced pointer is out of bounds
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fn advance_pointer(&self, chat: &mut Chat) -> bool {
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chat.position[0] += 1;
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let index = chat.position.len() - 1;
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chat.position[index] += 1;
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while chat.position.len() > 0 {
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if let None = self.at(chat.id, &chat.position) {
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chat.position.pop();
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}
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let index = chat.position.len() - 1;
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chat.position[index] += 1;
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}
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return true;
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}
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@ -137,10 +146,18 @@ impl ChatDB {
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}
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fn at(&self, id: usize, position: &Vec<usize>) -> Option<&Value> {
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if let Some(Value::Sequence(seq)) = self.0.get(id) {
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return Some(&seq[position[0]]); // TODO: panic
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if position.len() == 0 {
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return None;
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}
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return None;
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let mut pointer: Option<&Value> = Some(&self.0[id]);
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for index in position {
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if let Some(Value::Sequence(seq)) = self.0.get(id) {
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pointer = Some(&seq[*index]);
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} else {
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return None;
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}
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}
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return pointer;
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}
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pub fn advance_chat(&self, chat: &mut Chat, event: &mut EventWriter<ChatEvent>) {
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