Camera::Camera( ) {
_to_pos = START_TO_POS;
_before_mouse_pos = _to_pos;
FrameworkPtr fw = Framework::getInstance( );
fw->setCameraUp( Vector( 0.0, 0.0, 1.0 ) );
fw->setCamera( _target + _to_pos, _target );
}
void Camera::update( ) {
// マウスの左右でZ軸回転をするように
FrameworkPtr fw = Framework::getInstance( );
MousePtr mouse = Mouse::getTask( );
KeyboardPtr keyboard = Keyboard::getTask( );
Vector mouse_pos = mouse->getPos( );
Vector diff = _before_mouse_pos - mouse_pos;
_before_mouse_pos = mouse_pos;
if ( diff.x != 0 ) {
double angle = ( 10 * PI / 180 ) * diff.normalize( ).x;
Matrix mat = Matrix::makeTransformRotation( Vector( 0, 0, 1 ), angle );
_to_pos = mat.multiply( _to_pos );
}
if ( diff.y != 0 ) {
Vector axis = _to_pos.cross( Vector( 0.0, 0.0, 1.0 ) );
double angle = ( 5 * PI / 180 ) * diff.normalize( ).y;
Matrix mat = Matrix::makeTransformRotation( axis, angle );
_to_pos = mat.multiply( _to_pos );
}
int wheel = mouse->getWheelRotValue( );
if ( wheel != 0 ) {
double length = _to_pos.getLength( );
length += wheel;
if ( length < 10 ) {
length = 10;
}
_to_pos = _to_pos.normalize( ) * length;
}
if ( keyboard->isPushKey( "ENTER" ) ) {
_to_pos = START_TO_POS;
}
Vector vec;
if ( keyboard->isHoldKey( "ARROW_UP" ) ) {
vec = _to_pos;
vec.z = 0;
vec *= -1;
}
if ( keyboard->isHoldKey( "ARROW_DOWN" ) ) {
vec = _to_pos;
vec.z = 0;
}
if ( keyboard->isHoldKey( "ARROW_LEFT" ) ) {
vec = _to_pos;
vec.z = 0;
vec = _to_pos.cross( Vector( 0, 0, -1 ) );
}
if ( keyboard->isHoldKey( "ARROW_RIGHT" ) ) {
vec = _to_pos;
vec.z = 0;
vec = _to_pos.cross( Vector( 0, 0, 1 ) );
}
_target += vec.normalize( ) * 0.1;
fw->setCamera( _target + _to_pos, _target );
}