This site requires JavaScript, please enable it in your browser!
Greenfoot back
Twitter Twitter.hover
Merten
Merten wrote ...

2023/4/2

need help with transferring the score counter to a new level

Merten Merten

2023/4/2

#
so i am trying to have a score counter on Level_1 and Level_2 but when you go to the next level the counter resets. it does work here but it just doesn't copy the amount from the past level. i dont know how to fix this so i would really like some help. Level_1
?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
 
/**
 * Write a description of class Level_1 here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class Level_1 extends World
{
    public static int AantalPuntenLevel1;
    Teller teller = new Teller();
    Harry harry = new Harry();
    Barry barry = new Barry();
    Groen groen = new Groen();
    Level_2 level_2 = new Level_2();
    private int Ronde_1Punten = 8;
    public static boolean ronde_1;
    public static int welke_avatar;
    public static int xposSpeler;
    public static int yposSpeler;
    public static int Welk_Level;
    Gezondheid gezondheid = new Gezondheid();
     
    public static int TotGezondheid;
    /**
     * Constructor for objects of class MyWorld.
     *
     */
    public Level_1()
    {   
        super(1366, 768, 1);
        prepare();
        teller = new Teller();
        addObject(teller, 40, 340);
        addObject(gezondheid, 555, 10); 
    }
 
    public void act()
    {
        barry();
        ronde_1();
        ronde_1Klaar();
    }
 
    public Teller krijgTeller()
    {
        return teller;
    }
 
    public Gezondheid krijgGezondheid()
    {
        return gezondheid;
    }
 
    /**
     * Prepare the world for the start of the program.
     * That is: create the initial objects and add them to the world.
     */
    private void prepare()
    {      
        addObject(barry,115,302);
        addObject(harry, 781, 702);
        barry_start();
         
    }
 
    public void fighter_avatar()
    {
        addObject(new Speler_Fighter(), 1000, 600);
        welke_avatar = 1;
    }
 
    public void hunter_avatar()
    {
        addObject(new Speler_Hunter(), 1000, 600);
        welke_avatar = 2;
    }
 
    public void tank_avatar()
    {
        addObject(new Speler_Tank(), 1000, 600);
        welke_avatar = 3;
    }
 
    public void barry_start()
    {
        ronde_1 = false;
    }
 
    public void barry()
    {
        if (Greenfoot.mouseClicked(barry)) {
            ronde_1 = true;
        }
    }
 
    //alles wat er gebeurd tijdens ronde 1
    public void ronde_1()
    {
        if (ronde_1 == true) {
            if (Greenfoot.getRandomNumber(350) < 4) {
                addObject(new Groen(), Greenfoot.getRandomNumber(1020) + 180 ,Greenfoot.getRandomNumber(410) + 160);
            }
        }
    }
 
    public void ronde_1Klaar()
    {
        if (teller.totaalAantalPunten >= Ronde_1Punten) {
            ronde_1 = false;
            ronde_1Einde();
            /*if (getObjects(Groen.class) == null){
            ronde_1Einde();
            test1 = true;
            }*/
        }
    }
 
    //einde ronde
    public void ronde_1Einde()
    {
        Welk_Level = 1;
        Greenfoot.setWorld(level_2);
        if (welke_avatar == 1){
            level_2.fighter_avatar(xposSpeler, yposSpeler);
        }
        else if (welke_avatar == 2){
            level_2.hunter_avatar(xposSpeler, yposSpeler);
        }
        else if (welke_avatar == 3){
            level_2.tank_avatar(xposSpeler, yposSpeler);
        }
    }
}
Level_2
?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
 
/**
 * Write a description of class Level_2 here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class Level_2 extends World
{
 
    Teller teller = new Teller();
    Barry barry = new Barry();
    Harry harry = new Harry();
    Groen groen = new Groen();
    private int Ronde_2Punten = 8;
    public static boolean ronde_2;
    Slime_Koning slime_koning = new Slime_Koning();
    public static int xposSpeler;
    public static int yposSpeler;
    Level_3 level_3 = new Level_3();
    Gezondheid gezondheid = new Gezondheid();
    /**
     * Constructor for objects of class Level_2.
     *
     */
    public Level_2()
    {   
 
        super(1366, 768, 1);
        prepare();
        teller = new Teller();
        addObject(teller, 40, 340);
        addObject(gezondheid, 555, 10);  
    }
 
    public void act()
    {
        ronde_2();
        barry();
        ronde_2Klaar();
    }
 
    public Teller krijgTeller()
    {
        return teller;
    }
     
    public Gezondheid krijgGezondheid()
    {
        return gezondheid;
    }
 
    private void prepare()
    {
        addObject(barry,115,302);
        addObject(harry, 781, 702);
        barry_start();
         
    }
 
    public void fighter_avatar(int x, int y)
    {
        addObject(new Speler_Fighter(), x, y);
 
    }
 
    public void hunter_avatar(int x, int y)
    {
        addObject(new Speler_Hunter(), x, y);
 
    }
 
    public void tank_avatar(int x, int y)
    {
        addObject(new Speler_Tank(), x, y);
 
    }
 
    public void barry_start()
    {
        ronde_2 = false;
    }
     
    public void barry()
    {
        if (Greenfoot.mouseClicked(barry)) {
            ronde_2 = true;
        }
    }
 
    //alles wat er gebeurd tijdens ronde 2
    public void ronde_2()
    {
        if (ronde_2 == true) {
            if (Greenfoot.getRandomNumber(300) < 4) {
                addObject(new Groen(), Greenfoot.getRandomNumber(1020) + 180 ,Greenfoot.getRandomNumber(410) + 160);
                addObject(new Blauw(), Greenfoot.getRandomNumber(1020) + 180 ,Greenfoot.getRandomNumber(410) + 160);
            }
        }
    }
 
    public void ronde_2Klaar()
    {
        if (teller.totaalAantalPunten >= Ronde_2Punten) {
            ronde_2 = false;
            ronde_2Einde();
            /*if (getObjects(Groen.class) == null){
            ronde_1Einde();
            }*/
        }
 
    }
 
    //einde ronde (alles wordt klaargezet voor de volgende ronde)
    public void ronde_2Einde()
    {
        Greenfoot.setWorld(level_3);
        if (Level_1.welke_avatar == 1){
            level_3.fighter_avatar(xposSpeler, yposSpeler);
        }
        else if (Level_1.welke_avatar == 2){
            level_3.hunter_avatar(xposSpeler, yposSpeler);
        }
        else if (Level_1.welke_avatar == 3){
            level_3.tank_avatar(xposSpeler, yposSpeler);
        }
        Level_1.Welk_Level = 2;
    }
}
Kogel
?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
 
/**
 * Write a description of class Kogel here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class Kogel extends beweeg
{
    private Speler speler;
    private int kogelSnelheid = 5;
    private int richting;
    boolean aanraak = false;
    private int punten_groen = 2;
    private int punten_blauw = 5;
    /**
     * Act - do whatever the Kogel wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act()
    {
        geschoten();
        move(kogelSnelheid);
 
    }
 
    public void geschoten()
    {
        int ypos = getY();
        int xpos = getX();
 
        if (ypos < 5 || xpos < 5 || ypos > 763 || xpos > 1361){
            getWorld().removeObject(this);
        }
        else  {
            Actor groen = getOneIntersectingObject(Groen.class);
            Actor blauw = getOneIntersectingObject(Blauw.class);
            if (groen != null) {
                updateScore(punten_groen);
                getWorld().removeObject(groen);
                getWorld().removeObject(this);
            }
            if (blauw != null) {
                updateScore(punten_blauw);
                getWorld().removeObject(blauw);
                getWorld().removeObject(this);
            }
        }
    }
 
    public Kogel(int rot)
    {
        setRotation(rot);
        if (rot > 0 && rot < 90) {
            setRotation(0);
        }
        if (rot > 90 && rot < 180) {
            setRotation(90);
        }
        if (rot > 180 && rot < 270) {
            setRotation(180);
        }
        if (rot > 270 && rot < 360) {
            setRotation(270);
        }
    }
 
    public void updateScore(int aantal)
    {
        if (Level_1.Welk_Level == 0){
            Level_1 level_1 = (Level_1) getWorld();
            Teller teller = level_1.krijgTeller();
            teller.bumpCount(aantal);
        }
        if (Level_1.Welk_Level == 1){
            Level_2 level_2 = (Level_2) getWorld();
            Teller teller = level_2.krijgTeller();
            teller.bumpCount(aantal);
        }
        if (Level_1.Welk_Level == 2){
            Level_3 level_3 = (Level_3) getWorld();
            Teller teller = level_3.krijgTeller();
            teller.bumpCount(aantal);
        }
    }
 
}
Teller
?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
 
/**
 * Write a description of class Teller here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class Teller extends Actor
{
    public int totaalAantalPunten;
 
    public Teller()
    {
        setImage(new GreenfootImage("0", 20, Color.WHITE, Color.BLUE));
    }
    public void bumpCount(int aantal)
    {
        totaalAantalPunten += aantal;
        setImage(new GreenfootImage("" + totaalAantalPunten, 20, Color.WHITE, Color.BLACK));
    }
}
danpost danpost

2023/4/2

#
Merten wrote...
so i am trying to have a score counter on Level_1 and Level_2 but when you go to the next level the counter resets. it does work here but it just doesn't copy the amount from the past level. i dont know how to fix this so i would really like some help. << Codes Omitted >>
When changing levels, do not create a new counter. Just take the counter that is in the current world and put it in the next world. For example, when going from level 1 to level 2, change line 12 in the Level_2 class to:
?
1
Teller teller;
and also,remove lines 32 and 33 from the Level_2 class. Then, insert the following at line 124 in the Level_1 class:
?
1
level_2.addObject(teller, 40, 340);
Do similarly when going to higher levels.
Merten Merten

2023/4/4

#
i have done that but now at the end of level 2 the game crashes when i hit an enemy. error: java.lang.NullPointerException. this is at class Kogel, line 80
danpost danpost

2023/4/4

#
Merten wrote...
i have done that but now at the end of level 2 the game crashes when i hit an enemy. error: java.lang.NullPointerException. this is at class Kogel, line 80
Along with the addObject line you inserted above, also add the following line:
?
1
Level_2.teller = teller;
(and similiarly with other level changes)
You need to login to post a reply.