feat: extend Portal
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dualfroz committed
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81d5504932
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a919a0bfe6
1 file changed
+161
@@ -154,3 +154,164 @@ int PortalScan::light(World& world, const PortalFrame& frame) {
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return lit;
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return lit;
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}
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}
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int PortalScan::douse(World& world, const PortalFrame& frame) {
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int cleared = 0;
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for (int across = 0; across < frame.width; ++across) {
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for (int up = 0; up < frame.height; ++up) {
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Vec3i cell = frame.interiorBlock(across, up);
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if (world.blockAt(cell.x, cell.y, cell.z) != Block::NetherPortal) continue;
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world.setBlock(cell.x, cell.y, cell.z, Block::Air);
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++cleared;
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}
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}
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return cleared;
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}
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bool PortalScan::siteUsable(const World& world, const PortalFrame& frame) {
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for (int across = -1; across <= frame.width; ++across) {
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for (int up = -1; up <= frame.height; ++up) {
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Vec3i cell = frame.interiorBlock(across, up);
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if (world.blockAt(cell.x, cell.y, cell.z) == Block::Bedrock) return false;
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}
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}
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return true;
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}
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void PortalScan::buildFrame(World& world, const PortalFrame& frame) {
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for (int across = -1; across <= frame.width; ++across) {
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for (int up = -1; up <= frame.height; ++up) {
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Vec3i cell = frame.interiorBlock(across, up);
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bool ring = across == -1 || across == frame.width || up == -1 || up == frame.height;
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world.setBlock(cell.x, cell.y, cell.z, ring ? Block::Obsidian : Block::Air);
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}
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}
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int stepX = frame.alongX ? 0 : 1;
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int stepZ = frame.alongX ? 1 : 0;
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for (int side = -1; side <= 1; side += 2) {
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for (int across = 0; across < frame.width; ++across) {
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Vec3i deck = frame.interiorBlock(across, -1);
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world.setBlock(deck.x + stepX * side, deck.y, deck.z + stepZ * side, Block::Obsidian);
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for (int up = 0; up < frame.height; ++up) {
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Vec3i cell = frame.interiorBlock(across, up);
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world.setBlock(cell.x + stepX * side, cell.y, cell.z + stepZ * side, Block::Air);
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}
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}
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}
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}
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PortalNetwork::PortalNetwork(DimensionSet& set) : transit(set) {
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eyes.resize(static_cast<std::size_t>(DimensionSet::dimensionCount));
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}
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int PortalNetwork::registerPortal(DimensionId dimension, const PortalFrame& frame) {
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PortalLink link;
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link.id = static_cast<int>(portals.size());
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link.dimension = dimension;
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link.frame = frame;
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link.frame.dimension = dimension;
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portals.push_back(link);
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return link.id;
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}
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int PortalNetwork::ignite(DimensionId dimension, const Vec3i& probe) {
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World& world = dimensions().dimension(dimension).world();
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PortalScan scan = PortalScan::detect(world, probe, dimension);
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if (!scan.found) return -1;
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PortalScan::light(world, scan.frame);
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for (PortalLink& link : portals) {
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if (link.dimension != dimension || link.frame != scan.frame) continue;
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link.active = true;
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return link.id;
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}
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return registerPortal(dimension, scan.frame);
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}
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const PortalLink* PortalNetwork::portal(int id) const {
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if (id < 0 || id >= static_cast<int>(portals.size())) return nullptr;
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return &portals[static_cast<std::size_t>(id)];
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}
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int PortalNetwork::activeCountIn(DimensionId dimension) const {
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int total = 0;
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for (const PortalLink& link : portals)
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if (link.active && link.dimension == dimension) ++total;
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return total;
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}
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void PortalNetwork::unlink(int id) {
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const PortalLink* link = portal(id);
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if (!link || link->linkedId < 0) return;
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int partner = link->linkedId;
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portals[static_cast<std::size_t>(id)].linkedId = -1;
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if (partner >= 0 && partner < static_cast<int>(portals.size()))
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portals[static_cast<std::size_t>(partner)].linkedId = -1;
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}
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void PortalNetwork::linkPortals(int firstId, int secondId) {
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if (!portal(firstId) || !portal(secondId)) return;
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unlink(firstId);
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unlink(secondId);
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portals[static_cast<std::size_t>(firstId)].linkedId = secondId;
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portals[static_cast<std::size_t>(secondId)].linkedId = firstId;
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}
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int PortalNetwork::validate(DimensionId dimension) {
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World& world = dimensions().dimension(dimension).world();
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int destroyed = 0;
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for (std::size_t index = 0; index < portals.size(); ++index) {
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PortalLink& link = portals[index];
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if (!link.active || link.dimension != dimension) continue;
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if (PortalScan::intact(world, link.frame)) continue;
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PortalScan::douse(world, link.frame);
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link.active = false;
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unlink(link.id);
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++destroyed;
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}
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return destroyed;
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}
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PortalSearch PortalNetwork::findNearest(DimensionId dimension, const Vec3i& position,
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int radius) const {
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PortalSearch search;
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long long best = -1;
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for (const PortalLink& link : portals) {
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if (!link.active || link.dimension != dimension) continue;
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Vec3i entry = link.frame.entry();
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long long dx = entry.x - position.x;
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long long dy = entry.y - position.y;
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long long dz = entry.z - position.z;
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if (std::llabs(dx) > radius || std::llabs(dz) > radius) continue;
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long long distance = dx * dx + dy * dy + dz * dz;
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if (best >= 0 && distance >= best) continue;
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best = distance;
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search.found = true;
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search.portalId = link.id;
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search.position = entry;
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}
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if (search.found) search.distanceSquared = static_cast<int>(best);
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return search;
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}
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int PortalNetwork::buildPortalNear(DimensionId dimension, const Vec3i& target) {
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Dimension& destination = dimensions().dimension(dimension);
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destination.generateArea(floorDiv(target.x, chunkSize), floorDiv(target.z, chunkSize), 1);
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PortalFrame frame;
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frame.dimension = dimension;
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frame.alongX = true;
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frame.width = 2;
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frame.height = 3;
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const DimensionConfig& cfg = destination.config();
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int radius = DimensionTravel::buildRadiusFor(dimension);
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Vec3i spot;
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bool natural = transit.findSafeSpot(dimension, target, radius, frame.height + 1, spot);
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if (!natural) spot = {target.x, cfg.clampY(target.y), target.z};
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