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rewrite DeckState::draw_card_by_ref

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This commit is contained in:
Martin Michelsen
2024-03-23 21:01:11 -07:00
parent 53b36d7074
commit cd008ab0ba
1 changed files with 30 additions and 28 deletions
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src/Episode3/DeckState.cc
+30 -28
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@@ -84,43 +84,45 @@ bool DeckState::draw_card_by_ref(uint16_t card_ref) {
}
uint8_t index = index_for_card_ref(card_ref);
if (index > this->entries.size()) {
if (index >= this->entries.size()) {
return false;
}
if (this->entries[index].state == CardState::DISCARDED) {
auto& entry = this->entries[index];
if (entry.state == CardState::DISCARDED) {
// If the card is discarded, then it should be before the draw index, and we
// can just change its state.
this->entries[index].state = CardState::IN_HAND;
entry.state = CardState::IN_HAND;
return true;
}
} else if (this->entries[index].state == CardState::DRAWABLE) {
// If the card is still drawable, we need to move it so it's just in front
// of the draw index, then immediately draw it. Ep3 NTE does not handle this
// case, but we do even when playing NTE.
ssize_t ref_index;
for (ref_index = this->card_refs.size(); ref_index >= 0; ref_index--) {
if (this->card_refs[ref_index] == card_ref) {
break;
}
}
if (ref_index < 0) {
return false;
}
size_t ref_uindex = ref_index;
for (; ref_uindex > this->draw_index; ref_uindex--) {
// Note: draw_index is also unsigned, so ref_uindex cannot be zero here
this->card_refs[ref_uindex] = this->card_refs[ref_uindex - 1];
}
this->card_refs[this->draw_index] = card_ref;
this->entries[index].state = CardState::IN_HAND;
this->draw_index++;
return true;
} else {
if (entry.state != CardState::DRAWABLE) {
return false;
}
// If the card is still drawable, we need to move it so it's just in front of
// the draw index, then immediately draw it. Ep3 NTE does not handle this
// case, but we do even when playing NTE.
size_t ref_index;
for (ref_index = 0; ref_index < this->card_refs.size(); ref_index++) {
if (this->card_refs[ref_index] == card_ref) {
break;
}
}
if (ref_index >= this->card_refs.size()) {
return false;
}
for (; ref_index > this->draw_index; ref_index--) {
// this->draw_index is also unsigned, so ref_index cannot be zero here
this->card_refs[ref_index] = this->card_refs[ref_index - 1];
}
this->card_refs[this->draw_index] = card_ref;
// Draw the card
entry.state = CardState::IN_HAND;
this->draw_index++;
return true;
}
uint16_t DeckState::card_id_for_card_ref(uint16_t card_ref) const {