Java-像素数组未从另一个类渲染另一个类

Question

I am experimenting with game development in java. As of now, I can use the screen class to render to the Canvas of an image through pixel array. However, whenever I attempt to render to the canvas through the pixel array within the other class, it reads the pixels array's content. xy numbers and all but, does not render it to the canvas at all even though the other class extends the screen class (thus inheriting the pixels array and the x, y numbers). What is causing this? How do I go about fixing it?

from the other class:

void origin(){

    if(x <= ax && y <= ay)
        pixels[ox + oy * width] = 0xff00ff;
    }

From the screen class:

void waves(){
    orga = new Organism(width, height);

    for(y = 0; y < height; y++){
        for(x = 0; x < width; x++){

            Color wacol = new Color(0, 0, u);
            int water = wacol.getRGB();

            pixels[x + y * width] = water;
            orga.origin();
        }
    }
}

Answer 1

扩展类还不够，它必须以与像素阵列相同的方式连接到屏幕。