212 lines
7.8 KiB
C++
212 lines
7.8 KiB
C++
#include "terrain.h"
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#include "../../ext.h"
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#include "generator.h"
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#include "region.h"
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void ext::Terrain::initialize() {
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this->m_name = "Terrain";
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this->generate();
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}
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void ext::Terrain::tick() {
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uf::Entity::tick();
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ext::World& parent = this->getRootParent<ext::World>();
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const pod::Transform<>& player = parent.getPlayer().getComponent<pod::Transform<>>();
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const uf::Serializer& metadata = this->getComponent<uf::Serializer>();
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pod::Vector3ui size = {
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metadata["region"]["size"][0].asUInt(),
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metadata["region"]["size"][1].asUInt(),
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metadata["region"]["size"][2].asUInt(),
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};
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if ( this->m_children.empty() ) return;
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for ( uf::Entity* kv : this->m_children ) {
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const pod::Transform<>& transform = kv->getComponent<pod::Transform<>>();
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pod::Vector3i location = {
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(int) (transform.position.x / size.x),
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(int) (transform.position.y / size.y),
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(int) (transform.position.z / size.z),
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};
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if ( !this->inBounds(location) ) {
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this->degenerate(location);
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continue;
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}
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// Defer generation to make sure all neighbors have their voxels generated
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std::vector<ext::Region*> queue;
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for ( uf::Entity* kv : this->m_children ) { if ( !kv ) continue;
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ext::Region& region = *((ext::Region*) kv);
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if ( !region.hasComponent<ext::TerrainGenerator>() ) {
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region.initialize();
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queue.push_back(®ion);
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}
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}
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// Defer rasterization to make sure all neighbors have their voxels generated
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for ( ext::Region* kv : queue ) { if ( !kv ) continue;
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uf::Mesh& mesh = kv->getComponent<uf::Mesh>();
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ext::TerrainGenerator& generator = kv->getComponent<ext::TerrainGenerator>();
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generator.rasterize(mesh, *kv);
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}
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}
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}
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void ext::Terrain::render() {
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if ( !this->m_parent ) return; if ( this->m_children.empty() ) return;
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uf::Entity::render();
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}
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bool ext::Terrain::exists( const pod::Vector3i& position ) const {
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const uf::Serializer& metadata = this->getComponent<uf::Serializer>();
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pod::Vector3i size = {
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metadata["region"]["size"][0].asInt(),
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metadata["region"]["size"][1].asInt(),
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metadata["region"]["size"][2].asInt(),
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};
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if ( this->m_children.empty() ) return false;
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for ( auto it = this->m_children.begin(); it != this->m_children.end(); ++it ) { uf::Entity* kv = *it;
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const pod::Transform<>& transform = kv->getComponent<pod::Transform<>>();
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pod::Vector3i location = {
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(int) (transform.position.x / size.x),
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(int) (transform.position.y / size.y),
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(int) (transform.position.z / size.z),
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};
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if ( uf::vector::equals( location, position ) ) return true;
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}
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return false;
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}
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bool ext::Terrain::inBounds( const pod::Vector3i& position ) const {
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const ext::World& parent = this->getRootParent<ext::World>();
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const pod::Transform<>& player = parent.getPlayer().getComponent<pod::Transform<>>();
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const uf::Serializer& metadata = this->getComponent<uf::Serializer>();
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pod::Vector3ui size = {
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metadata["region"]["size"][0].asUInt(),
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metadata["region"]["size"][1].asUInt(),
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metadata["region"]["size"][2].asUInt(),
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};
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pod::Vector3ui threshold = {
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metadata["terrain"]["radius"][0].asUInt(),
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metadata["terrain"]["radius"][1].asUInt(),
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metadata["terrain"]["radius"][2].asUInt(),
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};
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pod::Vector3i point = {
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(int) (player.position.x / size.x),
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(int) (player.position.y / size.y),
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(int) (player.position.z / size.z),
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};
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pod::Vector3i difference = uf::vector::subtract( point, position );
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return !(abs(difference.x) >= threshold.x || abs(difference.y) >= threshold.y || abs(difference.z) >= threshold.z);
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}
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void ext::Terrain::generate() {
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uf::Serializer& metadata = this->getComponent<uf::Serializer>();
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pod::Vector3i radius = {
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metadata["terrain"]["radius"][0].asInt(),
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metadata["terrain"]["radius"][1].asInt(),
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metadata["terrain"]["radius"][2].asInt(),
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};
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pod::Vector3i size = {
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metadata["region"]["size"][0].asInt(),
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metadata["region"]["size"][1].asInt(),
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metadata["region"]["size"][2].asInt(),
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};
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ext::World& parent = this->getRootParent<ext::World>();
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const pod::Transform<>& player = parent.getPlayer().getComponent<pod::Transform<>>();
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pod::Vector3i location = {
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(int) player.position.x / size.x,
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(int) player.position.y / size.y,
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(int) player.position.z / size.z,
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};
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// uf::iostream << "Generating Regions @ ( " << location.x << ", " << location.y << ", " << location.z << ")" << "\n";
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for ( int x = 0; x < radius.x; ++x ) {
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for ( int y = 0; y < radius.y; ++y ) {
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for ( int z = 0; z < radius.z; ++z ) {
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this->generate( {location.x + x, location.y + y, location.z + z} );
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this->generate( {location.x - x, location.y - y, location.z - z} );
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this->generate( {location.x + x, location.y + y, location.z - z} );
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this->generate( {location.x - x, location.y + y, location.z + z} );
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this->generate( {location.x - x, location.y + y, location.z - z} );
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this->generate( {location.x + x, location.y - y, location.z + z} );
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this->generate( {location.x + x, location.y - y, location.z - z} );
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this->generate( {location.x - x, location.y - y, location.z + z} );
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}
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}
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}
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}
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ext::Region* ext::Terrain::at( const pod::Vector3i& position ) const {
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const uf::Serializer& metadata = this->getComponent<uf::Serializer>();
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pod::Vector3i size = {
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metadata["region"]["size"][0].asInt(),
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metadata["region"]["size"][1].asInt(),
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metadata["region"]["size"][2].asInt(),
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};
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if ( this->m_children.empty() ) return NULL;
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for ( auto it = this->m_children.begin(); it != this->m_children.end(); ++it ) { uf::Entity* kv = *it;
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const pod::Transform<>& transform = kv->getComponent<pod::Transform<>>();
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pod::Vector3i location = {
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(int) (transform.position.x / size.x),
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(int) (transform.position.y / size.y),
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(int) (transform.position.z / size.z),
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};
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if ( uf::vector::equals( location, position ) ) return (ext::Region*) kv;
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}
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return NULL;
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}
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void ext::Terrain::generate( const pod::Vector3i& position ) {
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uf::Serializer& metadata = this->getComponent<uf::Serializer>();
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pod::Vector3i size = {
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metadata["region"]["size"][0].asInt(),
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metadata["region"]["size"][1].asInt(),
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metadata["region"]["size"][2].asInt(),
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};
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if ( this->exists(position) ) return;
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if ( !this->inBounds(position) ) return;
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// uf::iostream << "Generating Region @ ( " << position.x << ", " << position.y << ", " << position.z << ")" << "\n";
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uf::Entity* base = new ext::Region; this->addChild(*base); {
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ext::Region& region = *((ext::Region*)base);
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uf::Serializer& m = region.getComponent<uf::Serializer>() = metadata;
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pod::Transform<>& transform = region.getComponent<pod::Transform<>>();
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transform.position.x = position.x * size.x;
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transform.position.y = position.y * size.y;
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transform.position.z = position.z * size.z;
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m["region"]["location"][0] = position.x;
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m["region"]["location"][1] = position.y;
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m["region"]["location"][2] = position.z;
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// region.initialize();
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}
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}
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void ext::Terrain::degenerate( const pod::Vector3i& position ) {
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uf::Serializer& metadata = this->getComponent<uf::Serializer>();
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pod::Vector3i size = {
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metadata["region"]["size"][0].asInt(),
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metadata["region"]["size"][1].asInt(),
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metadata["region"]["size"][2].asInt(),
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};
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if ( this->m_children.empty() ) return;
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for ( auto it = this->m_children.begin(); it != this->m_children.end(); ++it ) { uf::Entity* kv = *it;
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const pod::Transform<>& transform = kv->getComponent<pod::Transform<>>();
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pod::Vector3i location = {
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(int) (transform.position.x / size.x),
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(int) (transform.position.y / size.y),
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(int) (transform.position.z / size.z),
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};
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if ( uf::vector::equals( location, position ) ) {
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delete kv; *it = NULL;
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this->m_children.erase(it);
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// uf::iostream << "Degenerating Region @ ( " << position.x << ", " << position.y << ", " << position.z << ")" << "\n";
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this->generate();
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break;
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}
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}
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} |