Greenfoot

wlau1010

2016/12/9

#

Here is my code,

1	`getBackground().drawLine(Mouse_follower.p1x, Mouse_follower.p1y, Line_point_2.p2x, Line_point_2.p2y);`

I am trying to make a line in-between 2 objects ignore the names as they don't mean anyhting as I changed what I was doing halfway through and don't know how to change the name. The 2 points move randomly. I have imported java.awt.Color so I don't know the problem. *EDIT I figured it out it was drawing a white line on a white background. I fixed it but would like to know how change the color of the line though. It would be nice if I was able to change the color of the line as it runs so it changes from white to green to black etc.

danpost

2016/12/9

#

Having a single line with multiple colors takes a bit of coding to accomplish. To create a line of a any single color is a breeze in comparison. It is just a matter of setting the drawing color of the background image and drawing the line. Here is for any random color of clear visibility on a white background:

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int r = Greenfoot.getRandomNumber(128);
int g = Greenfoot.getRandomNumber(128);
int b = Greenfoot.getRandomNumber(128);
getBackground().setColor(new Color(r, g, b));
getBackground().drawLine( // etc.

wlau1010

2016/12/12

#

Thanks so much, I am new to coding but this makes sense with the rgb values.

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Help drawing a line