/*
* Get the perpective camera that includes the triangle in 3D.
*
* equi_image: original equirectangular image
* vertices: 3D coordinates on unit sphere
*
* coordinate system: x: depth, y:left-right, z:bottom-top
*/
PersCamera Triangle::getPersCamParams(Mat equi_image, Vec9f vertices){
// store in Point3d;
vector<Point3d> points = convVec9fToPoint3d(vertices);
// get the center of vertices in 3D.
Point3d center = triangleCenter3d(points);
center = normalizePoint(center);
EquiTrans tran;
double pan = 0.0, tilt = 0.0;
tran.convSpherePointToAngles(center, &pan, &tilt);
ViewDirection vd;
vd.pan = pan;
vd.tilt = tilt;
// Obtained the initial field of view.
double h_fov = -1.0, v_fov = -1.0;
getFOV(points, vd, center, h_fov, v_fov);
// set the intial camera.
PersCamera cam;
cam.setCamera(equi_image, h_fov, v_fov, vd);
// adjust the camera.
//PersCamera n_cam = adjustPersCam(equi_image, cam, points);
return cam;
}
sf::Vector2f Zombie::think(MainCharacter& main)
{
if (m_state == charState::Dead)
return sf::Vector2f(0, 0);
//if (!getFOV().getGlobalBounds().intersects(main.getSprite().getGlobalBounds()))
if (!getFOV().getGlobalBounds().contains(main.getPosition()))
{
if (m_targetChange > m_targetNext)
{
m_target.y = position.y - 250.0f + (rand() % 500);
m_target.x = position.x - 250.0f + (rand() % 500);
//target = sf::Vector2f(500.0f, 500.0f);
m_targetChange = 0;
m_targetNext = 1000 + (rand() % 2000);
}
m_targetChange += 1.0f;
//return normalize(target);
sf::Vector2f diff = m_target - position;
if (diff.x > -5 && diff.y > -5 && diff.x < 5 && diff.y < 5)
return sf::Vector2f(0, 0);
m_hasTracked = false;
}
else
{
sf::Vector2f distvec = position - main.getPosition();
float dist = sqrtf(powf(distvec.x, 2.0f) + powf(distvec.y, 2.0f));
if (main.getFlashlightSwitch() || m_hasTracked || dist < 100.0f)
{
if (m_hasTracked == false)
{
scream.setPosition(position.x, position.y, 0);
scream.play();
}
m_hasTracked = true;
m_target = main.getPosition();
}
}
sf::Vector2f tmp = normalize(m_target - this->getPosition());
//this->setRotation((atan2f(tmp.y, tmp.x) * 180 / 3.1415f) - 90.0f);
return tmp;
}
void FirstPersonCamera::draw(int winWidth, int winHeight, MatrixStack &proj)
{
proj.loadIdentity();
proj.perspective(getFOV(),
(GLfloat)winWidth / (GLfloat)winHeight,
getNearClippingPlaneDist(),
getFarClippingPlaneDist());
proj.rotateZ(m_attitude.roll);
proj.rotateX(-m_attitude.pitch);
proj.rotateY(-m_attitude.yaw);
proj.translate(-m_pos.x, -m_pos.y, -m_pos.z);
m_lookVector = glm::vec3(proj.getCurrent() * glm::vec4(0.f, 0.f, -1.f, 1.f));
m_upVector = glm::vec3(proj.getCurrent() * glm::vec4(0.f, 1.f, 0.f, 1.f));
//Update the GL stack, for now (will need until switch completely to
//shader-based rendering)
proj.syncToGlStack(GL_PROJECTION);
}
void Frustum::generateFrustumPlanes( Camera* camera, Plane* frustum ) {
// Generate planes
float nearHeight = 2 * tan( getFOV() / 2 ) * getNear();
float nearWidth = nearHeight * getAspect();
//float farHeight = 2 * tan( getFOV() / 2 ) * getFar();
//float farWidth = farHeight * getAspect();
Vector3 fc, nc, tmp;
Vector3 ynh, xnw, X, Y, Z;
Z = Vector3( camera->getCenterOfProjection() );
Z.sub( Z, camera->getLookAtPoint() );
Z.normalize();
X.cross( camera->getUp(), Z );
X.normalize();
Y.cross( Z, X );
ynh = Vector3( Y );
ynh.scale( nearHeight / 2 );
xnw = Vector3( X );
xnw.scale( nearWidth / 2 );
tmp = Vector3( Z );
tmp.scale( getNear() );
nc = Vector3( camera->getCenterOfProjection() );
nc.sub( nc, tmp );
tmp = Vector3( Z );
tmp.scale( getFar() );
fc = Vector3( camera->getCenterOfProjection() );
fc.sub( fc, tmp );
Vector3 aux, normal;
frustum[ NEAR ].setNormal( Z.getX(), Z.getY(), Z.getZ() );
frustum[ NEAR ].setPoint( nc );
frustum[ FAR ].setNormal( -Z.getX(), -Z.getY(), -Z.getZ() );
frustum[ FAR ].setPoint( fc );
aux = Vector3( nc );
aux.add( aux, ynh );
frustum[ TOP ].setPoint( aux );
aux.sub( aux, camera->getCenterOfProjection() );
aux.normalize();
normal.cross( aux, X );
frustum[ TOP ].setNormal( normal.getX(), normal.getY(), normal.getZ() );
aux = Vector3( nc );
aux.sub( aux, ynh );
frustum[ BOTTOM ].setPoint( aux );
aux.sub( aux, camera->getCenterOfProjection() );
aux.normalize();
normal.cross( X, aux );
frustum[ BOTTOM ].setNormal( normal.getX(), normal.getY(), normal.getZ() );
aux = Vector3( nc );
aux.sub( aux, xnw );
frustum[ LEFT ].setPoint( aux );
aux.sub( aux, camera->getCenterOfProjection() );
aux.normalize();
normal.cross( aux, Y );
frustum[ LEFT ].setNormal( normal.getX(), normal.getY(), normal.getZ() );
aux = Vector3( nc );
aux.add( aux, xnw );
frustum[ RIGHT ].setPoint( aux );
aux.sub( aux, camera->getCenterOfProjection() );
aux.normalize();
normal.cross( Y, aux );
frustum[ RIGHT ].setNormal( normal.getX(), normal.getY(), normal.getZ() );
}