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Verdreht135
Verdreht135 wrote ...

2023/12/2

Change the color of a pixel

Verdreht135 Verdreht135

2023/12/2

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How do i hange the rgb value of a specific pixel?
danpost danpost

2023/12/4

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Verdreht135 wrote...
How do i hange the rgb value of a specific pixel?
Create the new color and set it to the specified pixel. The general process is shown below:
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GreenfootImage image = getImage(); // get image
Color color = image.getColorAt(0, 0); // get color at some location
int red= color.getRed();; // get red of color
int green = color.getGreen();; // get green of color
int blue = color.getBlue(); // get bue of color
// adjust red/blue/green values here
/**  example -- removing red */
red = 0;
/** **************** */
color = new Color(red, green, blue); // create new color using adjusted rgb values
image.setColorAt(0, 0, color); // set adjusted color to same location
Verdreht135 Verdreht135

2023/12/5

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danpost wrote...
Verdreht135 wrote...
How do i hange the rgb value of a specific pixel?
Create the new color and set it to the specified pixel. The general process is shown below:
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GreenfootImage image = getImage(); // get image
Color color = image.getColorAt(0, 0); // get color at some location
int red= color.getRed();; // get red of color
int green = color.getGreen();; // get green of color
int blue = color.getBlue(); // get bue of color
// adjust red/blue/green values here
/**  example -- removing red */
red = 0;
/** **************** */
color = new Color(red, green, blue); // create new color using adjusted rgb values
image.setColorAt(0, 0, color); // set adjusted color to same location
When i try to put "GreenfootImage image= getImage () into Myworld it says i have to declar a new method.
danpost danpost

2023/12/6

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Verdreht135 wrote...
When i try to put "GreenfootImage image= getImage () into Myworld it says i have to declar a new method.
In a World subclass, you would use:
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GreenfootImage image = getBackground();
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