beeworld/plane.cpp at master · ajc158/beeworld · GitHub

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#include "plane.h"
#include "scenetexture.h"

plane::plane(QVector3D location, QVector3D scaling, QVector3D rotation,QObject *parent) :
    sceneObject(parent)
{
    this->texture = NULL;
    this->location = location;
    this->scaling = scaling;
    this->invScaling.setX(1.0/scaling.x());
    this->invScaling.setY(1.0/scaling.y());
    this->invScaling.setZ(1.0/scaling.z());
    this->rotation = rotation;
}


bool plane::isHit(QVector3D ray_loc, QVector3D ray_dir, float &t) {

    QVector3D ray_loc_trans = this->vectorToObjectSpace(ray_loc);
    QVector3D ray_dir_trans = this->vectorToObjectSpaceRS(ray_dir);

    // find out if the line intersects the plane
    float NdotD = ray_dir_trans.x();

    if (NdotD == 0.0) {
        // if true then the ray is parallel to the plane
        return false;
    }

    t = -ray_loc_trans.x()/NdotD;

    if (t > 0) {
        // check for edges
        QVector3D hit = ray_loc_trans + ray_dir_trans * t;
        if (hit.y() < 0.0 || hit.y() > 1.0 || hit.z() < 0.0 || hit.z() > 1.0) {
            return false;
        }
        // store location of hit
        this->lastHit = ray_loc + ray_dir * t;
        // angle of normal to sun for use in texturing
        if (ray_dir_trans.x() > 0) {
            this->light = QVector3D::dotProduct(this->vectorFromObjectSpaceRS(QVector3D(-1,0,0)).normalized(), QVector3D(0.707,0,0.707) /* the sun */) * 0.5 + 0.5;
        } else {
            this->light = QVector3D::dotProduct(this->vectorFromObjectSpaceRS(QVector3D(1,0,0)).normalized(), QVector3D(0.707,0,0.707) /* the sun */) * 0.5 + 0.5;
        }
        return true;
    }
    // no hit found
    return false;
}

void plane::connectObject(spineMLNetworkServer * src, QString port) {
    if (port == "Location") {
        QObject::connect(src,SIGNAL(dataReceived(QVector<float>)), this, SLOT(setLocation(QVector<float>)));
    }
    if (port == "LocationX") {
        QObject::connect(src,SIGNAL(dataReceived(QVector<float>)), this, SLOT(setLocationX(QVector<float>)));
    }
    if (port == "LocationY") {
        QObject::connect(src,SIGNAL(dataReceived(QVector<float>)), this, SLOT(setLocationY(QVector<float>)));
    }
    if (port == "LocationZ") {
        QObject::connect(src,SIGNAL(dataReceived(QVector<float>)), this, SLOT(setLocationZ(QVector<float>)));
    }
    if (port == "Rotation") {
        QObject::connect(src,SIGNAL(dataReceived(QVector<float>)), this, SLOT(setRotation(QVector<float>)));
    }
    if (port == "RotationX") {
        QObject::connect(src,SIGNAL(dataReceived(QVector<float>)), this, SLOT(setRotationX(QVector<float>)));
    }
    if (port == "RotationY") {
        QObject::connect(src,SIGNAL(dataReceived(QVector<float>)), this, SLOT(setRotationY(QVector<float>)));
    }
    if (port == "RotationZ") {
        QObject::connect(src,SIGNAL(dataReceived(QVector<float>)), this, SLOT(setRotationZ(QVector<float>)));
    }
    if (port == "Scaling") {
        QObject::connect(src,SIGNAL(dataReceived(QVector<float>)), this, SLOT(setScaling(QVector<float>)));
    }
    if (port == "ScalingX") {
        QObject::connect(src,SIGNAL(dataReceived(QVector<float>)), this, SLOT(setScalingX(QVector<float>)));
    }
    if (port == "ScalingY") {
        QObject::connect(src,SIGNAL(dataReceived(QVector<float>)), this, SLOT(setScalingY(QVector<float>)));
    }
    if (port == "ScalingZ") {
        QObject::connect(src,SIGNAL(dataReceived(QVector<float>)), this, SLOT(setScalingZ(QVector<float>)));
    }
}

sceneObject * plane::copy() {
    // create a new plane and return a pointer
    plane * newObj = new plane(this->location, this->scaling, this->rotation);
    newObj->setTextureGenerator(this->texture->copy());
    return newObj;
}