我尝试将asteroid1
- asteroid10
发送到AsteroidField()
构造函数内的沙箱。我无法在sandbox.addBlob(asteroid1);
中简单地写generate()
,因为我现在不在构造函数中。我该如何解决这个问题?
public class AsteroidField implements BlobGUI {
private static Random random = new Random();
public AsteroidField() {
SandBox sandbox = new SandBox();
sandbox.setSandBoxMode(FLOW);
sandbox.setFrameRate(15);
sandbox.init(this);
}
public void generate() {
int z;
int i;
int[] x = new int[10];
int[] y = new int[10];
double[] r = new double[10];
for( i = 0; i < 10; i++ ) {
x[i] = 0;
while( x[i] == 0 )
x[i] = random.nextInt(7) - 3;
y[i] = 0;
while( y[i] == 0 )
y[i] = random.nextInt(7) - 3;
r[i] = 0;
while( r[i] == 0 ) {
z = random.nextInt();
if( z % 2 == 0 )
r[i] = -0.1;
else
r[i] = 0.1;
}
}
i = 0;
Asteroid asteroid1 = new Asteroid( x[i], y[i], r[i] );
i++;
Asteroid asteroid2 = new Asteroid( x[i], y[i], r[i] );
i++;
Asteroid asteroid3 = new Asteroid( x[i], y[i], r[i] );
i++;
Asteroid asteroid4 = new Asteroid( x[i], y[i], r[i] );
i++;
Asteroid asteroid5 = new Asteroid( x[i], y[i], r[i] );
i++;
Asteroid asteroid6 = new Asteroid( x[i], y[i], r[i] );
i++;
Asteroid asteroid7 = new Asteroid( x[i], y[i], r[i] );
i++;
Asteroid asteroid8 = new Asteroid( x[i], y[i], r[i] );
i++;
Asteroid asteroid9 = new Asteroid( x[i], y[i], r[i] );
i++;
Asteroid asteroid10 = new Asteroid( x[i], y[i], r[i] );
}
}
答案 0 :(得分:1)
在课堂上保留identified_by :current_user
个对象。
[NameError - undefined local variable or method `current_user' for #<MessageChannel:0x7ace398>]