nach Tut 6

CMakeLists.txt

@@ -22,7 +22,10 @@ set(PROJECT_SOURCES
         bullet.cpp
         enemy.h
         enemy.cpp
-
+        game.h
+        game.cpp
+        score.h score.cpp
+        health.h health.cpp
 )
 
 if(${QT_VERSION_MAJOR} GREATER_EQUAL 6)

bullet.cpp

@@ -3,7 +3,9 @@
 #include <QGraphicsScene>
 #include <QList>
 #include "enemy.h"
+#include "game.h"
 
+extern Game* game;
 
 Bullet::Bullet()
 {
@@ -18,6 +20,7 @@ void Bullet::move(){
     QList<QGraphicsItem *> colliding_items = collidingItems();
     for (int i = 0, n = colliding_items.size(); i < n; i++) {
         if (typeid(*(colliding_items[i])) == typeid(Enemy)) {
+            game->score->increase();
             scene()->removeItem(colliding_items[i]);
             scene()->removeItem(this);
             delete colliding_items[i];

enemy.cpp

@@ -2,6 +2,10 @@
 #include <QTimer>
 #include <QGraphicsScene>
 #include <stdlib.h>
+#include "game.h"
+#include "health.h"
+
+extern Game* game;
 
 Enemy::Enemy()
 {
@@ -17,7 +21,8 @@ Enemy::Enemy()
 void Enemy::move()
 {
     this->setPos(x(), y()+5);
-    if(pos().y() + rect().height() < 0) {
+    if(pos().y()  > 600) {
+        game->health->decrease();
         scene()->removeItem(this);
         delete this;
         qDebug() << "bullet deleted";

game.cpp

@@ -0,0 +1,37 @@
+#include "game.h"
+#include <QGraphicsView>
+#include <QGraphicsScene>
+#include "MyRect.h"
+#include <QTimer>
+
+
+Game::Game(QWidget *parent)
+    : QGraphicsView{parent}
+{
+    MyRect* player = new MyRect();
+    player->setRect(0,0,100,100);
+    player->setFlag(QGraphicsItem::ItemIsFocusable);
+    player->setFocus();
+    QGraphicsScene* scene = new QGraphicsScene();
+    scene->addItem(player);
+    score = new Score();
+    scene->addItem(score);
+    health = new Health();
+    health->setPos(health->x(), health->y()+25);
+    scene->addItem(health);
+    //scene->addWidget(this);
+    this->setScene(scene);
+    this->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    this->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    this->setFixedSize(800,600);
+    //view->show();
+    //view->setFixedSize(800,600);
+    scene->setSceneRect(0,0,800,600);
+    player->setPos(this->width()/2, this->height() - player->rect().height());
+
+    // spawn enemies
+    QTimer* timer = new QTimer();
+    QObject::connect(timer, SIGNAL(timeout()), player, SLOT(spawn()));
+    timer->start(2000);
+
+}

game.h

@@ -0,0 +1,24 @@
+#ifndef GAME_H
+#define GAME_H
+
+#include <QGraphicsView>
+#include <QWidget>
+#include <QGraphicsScene>
+#include "MyRect.h"
+#include "score.h"
+#include "health.h"
+
+class Game : public QGraphicsView
+{
+public:
+    Game(QWidget *parent = nullptr);
+    QGraphicsScene* scene;
+    MyRect* player;
+    Score* score;
+    Health* health;
+
+signals:
+
+};
+
+#endif // GAME_H

health.cpp

@@ -0,0 +1,22 @@
+#include "health.h"
+#include <QFont>
+#include <QGraphicsTextItem>
+
+
+Health::Health(QGraphicsItem *parent): QGraphicsTextItem(parent){
+    health = 3;
+
+    setPlainText(QString("Health: ") + QString::number(health));
+    setDefaultTextColor(Qt::red);
+    setFont(QFont("times",16));
+}
+
+void Health::decrease(){
+    health--;
+    setPlainText(QString("Health: ") + QString::number(health));
+}
+
+int Health::getHealth(){
+    return health;
+}
+

health.h

@@ -0,0 +1,15 @@
+#ifndef HEALTH_H
+#define HEALTH_H
+#include <QGraphicsTextItem>
+
+class Health: public QGraphicsTextItem {
+public:
+    Health(QGraphicsItem* parent=0);
+    void decrease();
+    int getHealth();
+private:
+    int health;
+
+};
+
+#endif // HEALTH_H

main.cpp

@@ -1,31 +1,13 @@
 #include <QApplication>
-#include <QGraphicsView>
+#include "game.h"
-#include <QGraphicsScene>
-#include "MyRect.h"
-#include <QTimer>
 
+Game* game;
 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);
 
-    MyRect* player = new MyRect();
+    game = new Game();
-    player->setRect(0,0,100,100);
+    game->show();
-    player->setFlag(QGraphicsItem::ItemIsFocusable);
-    player->setFocus();
-    QGraphicsScene* scene = new QGraphicsScene();
-    scene->addItem(player);
-
-    QGraphicsView* view = new QGraphicsView(scene);
-
-    view->show();
-    view->setFixedSize(800,600);
-    scene->setSceneRect(0,0,800,600);
-    player->setPos(view->width()/2, view->height() - player->rect().height());
-
-    // spawn enemies
-    QTimer* timer = new QTimer();
-    QObject::connect(timer, SIGNAL(timeout()), player, SLOT(spawn()));
-    timer->start(2000);
 
     return a.exec();
 }

score.cpp

@@ -0,0 +1,22 @@
+#include "score.h"
+#include <QFont>
+#include <QGraphicsTextItem>
+
+
+Score::Score(QGraphicsItem *parent): QGraphicsTextItem(parent){
+    score = 0;
+
+    setPlainText(QString("Score: ") + QString::number(score));
+    setDefaultTextColor(Qt::blue);
+    setFont(QFont("times",16));
+}
+
+void Score::increase(){
+    score++;
+    setPlainText(QString("Score: ") + QString::number(score));
+}
+
+int Score::getScore(){
+    return score;
+}
+

score.h

@@ -0,0 +1,16 @@
+#ifndef SCORE_H
+#define SCORE_H
+
+#include <QGraphicsTextItem>
+
+class Score: public QGraphicsTextItem {
+public:
+    Score(QGraphicsItem* parent=0);
+    void increase();
+    int getScore();
+private:
+    int score;
+
+};
+
+#endif // SCORE_H