77 lines
2.0 KiB
C++
77 lines
2.0 KiB
C++
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//
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// Created by Иван Ильин on 04.11.2021.
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//
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#include "HitBox.h"
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#include "../Consts.h"
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HitBox::HitBox(const Mesh &mesh) {
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for(const auto& t : mesh.triangles()) {
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for(int i = 0; i < 3; i++) {
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// we dont need to add the same points in hit box
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_addIfUnique(Vec3D(t[i]));
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}
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}
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}
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void HitBox::_addIfUnique(const Vec3D &point) {
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bool addPoint = true;
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for(const auto& p : _hitBox) {
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if((p - point).sqrAbs() < Consts::EPS) {
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addPoint = false;
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}
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}
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if(addPoint) {
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_hitBox.push_back(point);
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}
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}
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HitBox HitBox::Box(const Mesh &mesh) {
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HitBox result;
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double maxX = -std::numeric_limits<double>::max();
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double maxY = -std::numeric_limits<double>::max();
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double maxZ = -std::numeric_limits<double>::max();
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double minX = std::numeric_limits<double>::max();
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double minY = std::numeric_limits<double>::max();
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double minZ = std::numeric_limits<double>::max();
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for(const auto& t : mesh.triangles()) {
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for(int i = 0; i < 3; i++) {
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Vec3D point = Vec3D(t[i]);
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if(point.x() > maxX) {
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maxX = point.x();
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}
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if(point.y() > maxY) {
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maxY = point.y();
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}
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if(point.z() > maxZ) {
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maxZ = point.z();
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}
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if(point.x() < minX) {
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minX = point.x();
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}
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if(point.y() < minY) {
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minY = point.y();
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}
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if(point.z() < minZ) {
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minZ = point.z();
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}
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}
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}
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result._hitBox.emplace_back(minX, minY, minZ);
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result._hitBox.emplace_back(minX, maxY, minZ);
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result._hitBox.emplace_back(maxX, minY, minZ);
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result._hitBox.emplace_back(maxX, maxY, minZ);
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result._hitBox.emplace_back(minX, minY, maxZ);
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result._hitBox.emplace_back(minX, maxY, maxZ);
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result._hitBox.emplace_back(maxX, minY, maxZ);
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result._hitBox.emplace_back(maxX, maxY, maxZ);
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return result;
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}
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