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abstractmovableitem.cpp
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abstractmovableitem.cpp
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#include "abstractmovableitem.h"
#include <QDebug>
AbstractMovableItem::AbstractMovableItem(qreal w, qreal h, const QPointF &pos,
const QPixmaps2 &pixs2, QGraphicsScene *scene,
QGraphicsItem *parent)
: AbstractGameItem(w, h, scene, parent),
m_pixStateIndex(0), m_hasTarget(false), m_target(nullptr),
m_left(false), m_right(false), m_turning(false), m_eatenExp(0)
{
for (int j = 0; j < pixs2.size(); ++j) {
QPixmaps tempPixs;
for (int i = 0; i < pixs2[0].size(); ++i) {
QPixmap temp(pixs2.at(j).at(i));
QPixmap t = temp.scaled(m_w, m_h, Qt::KeepAspectRatioByExpanding);
tempPixs.append(t);
}
m_pixs2.append(tempPixs);
}
setPos(pos);
}
QRectF AbstractMovableItem::boundingRect() const
{
QRectF outerRect = m_pixs2.at(0).at(0).rect();
qreal outerX = outerRect.x();
qreal outerY = outerRect.y();
qreal outerWidth = outerRect.width();
qreal outerHeight = outerRect.height();
qreal innerX = outerX + outerWidth / 2 - paintWidth() / 2;
qreal innerY = outerY + outerHeight / 2 - paintHeight() / 2;
return QRectF(innerX, innerY, paintWidth(), paintHeight());
}
QPainterPath AbstractMovableItem::shape() const
{
QPainterPath path;
path.addRect(boundingRect());
return path;
}
void AbstractMovableItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
painter->drawPixmap(0, 0, m_pixs2.at(m_pixStateIndex).at(m_pixIndex));
}
EDGE AbstractMovableItem::checkPos()
{
if (!isVisible()) return INSIDE;
if (scenePos().rx() + (width() - paintWidth()) / 2 <= 0) return LEFTEDGE;
if (scenePos().ry() + (height() - paintHeight()) / 2 <= Config::POOL_UPPER_BOUND) return UPEDGE;
if (scenePos().rx() + (width() + paintWidth()) / 2 >= Config::SCREEN_WIDTH) return RIGHTEDGE;
if (scenePos().ry() + (height() + paintHeight()) / 2 >= Config::POOL_LOWER_BOUND) return DOWNEDGE;
return INSIDE;
}
void AbstractMovableItem::advance(int)
{
doCollide();
m_step++;
if (m_step == 999999){
m_step = 0;
}
}
void AbstractMovableItem::aimAt(AbstractMovableItem *target)
{
if (target == Q_NULLPTR){ // target doesn't exist
m_hasTarget = false;
} else {
qreal tx = target->centrePos().x();
qreal ty = target->centrePos().y();
qreal mx = centrePos().x();
qreal my = centrePos().y();
qreal dir = atan2(ty - my, tx - mx);
if (dir < 0){
dir += Config::PI * 2;
}
setDirection(dir);
}
}
void AbstractMovableItem::move()
{
QPointF pos = scenePos();
pos.rx() += m_speed * cos(m_direction);
pos.ry() += m_speed * sin(m_direction);
setPos(pos);
}
qreal AbstractMovableItem::speed() const
{
return m_speed;
}
qreal AbstractMovableItem::direction() const
{
return m_direction;
}
void AbstractMovableItem::setSpeed(const qreal speed)
{
m_speed = speed;
}
void AbstractMovableItem::setDirection(const qreal dir)
{
m_direction = dir;
}
bool AbstractMovableItem::left() const
{
return m_left;
}
bool AbstractMovableItem::right() const
{
return m_right;
}
bool AbstractMovableItem::turning() const
{
return m_turning;
}
void AbstractMovableItem::toLeft()
{
m_left = true;
m_right = false;
}
void AbstractMovableItem::toRight()
{
m_left = false;
m_right = true;
}
void AbstractMovableItem::turning(const bool turn)
{
m_turning = turn;
}
void AbstractMovableItem::setPaintWidth(const qreal w)
{
m_paintWidth = w;
}
void AbstractMovableItem::setPaintHeight(const qreal h)
{
m_paintHeight = h;
}
void AbstractMovableItem::setState(const int state)
{
m_pixStateIndex = state;
}
qreal AbstractMovableItem::paintWidth() const
{
return m_paintWidth;
}
qreal AbstractMovableItem::paintHeight() const
{
return m_paintHeight;
}
void AbstractMovableItem::setEatenExp(const int e)
{
m_eatenExp = e;
}
int AbstractMovableItem::eatenExp() const
{
return m_eatenExp;
}
void AbstractMovableItem::slt_lostAim()
{
m_hasTarget = false;
m_target = Q_NULLPTR;
}
void AbstractMovableItem::updateDirection()
{
if (direction() < 0){
setDirection(direction() + Config::PI * 2);
}
if (direction() > Config::PI * 2){
setDirection(direction() - Config::PI * 2);
}
qreal dir = direction();
if (dir <= Config::PI / 2 || dir > Config::PI * 3 / 2){
if (!right()){
toRight();
turning(true);
m_pixIndex = 0;
}
}
else if (dir > Config::PI / 2 && dir <= Config::PI * 3 / 2){
if (!left()){
toLeft();
turning(true);
m_pixIndex = 0;
}
}
}
void AbstractMovableItem::vanish()
{
setVisible(false);
emit sgn_deleting();
setPos(Config::SCREEN_WIDTH, Config::SCREEN_HEIGHT);
setFlag(QGraphicsItem::ItemIsMovable, false);
}
QPointF AbstractMovableItem::centrePos()
{
QPointF leftTop = scenePos();
QPointF center;
center.rx() = leftTop.rx() + width() / 2;
center.ry() = leftTop.ry() + height() / 2;
return center;
}
void AbstractMovableItem::keepInScene()
{
QPointF pos = scenePos();
// restrict in the scene
switch (checkPos()) {
case INSIDE:
break;
case UPEDGE:
setDirection( 2 * Config::PI - direction());
pos.ry() = Config::POOL_UPPER_BOUND - (height() - paintHeight()) / 2;
break;
case DOWNEDGE:
setDirection( 2 * Config::PI - direction());
pos.ry() = Config::POOL_LOWER_BOUND - (height() + paintHeight()) / 2;
break;
case LEFTEDGE:
setDirection(Config::PI - direction());
pos.rx() = - (width() - paintWidth()) / 2;
m_pixIndex = 0;
break;
case RIGHTEDGE:
setDirection(Config::PI - direction());
pos.rx() = Config::SCREEN_WIDTH - (width() + paintWidth()) / 2;
m_pixIndex = 0;
break;
default:
break;
}
setPos(pos);
}