code.org for-loop not drawing lines javascript












0















Okay, so in code.org's game lab, they offer a pre-made function called "line();" which should draw a line stemming from a given x1 y1, and x2 y2 coordinate. When I attempted to create a for-loop that would allow me to draw 3 line segments on the same y pixel, the for-loop simply ran forever inside the draw loop, (but not correctly, it just moved the x2 and y2 to the right infinitely), so I moved it outside of the draw loop and now I'm getting no output at all...



var spaceXPos = 70;
var spaceXPos2 = spaceXPos + 25;

for (var i = 0; i < 4; i++){
stroke(rgb(255, 255, 255));
strokeWeight(2);
line(spaceXPos, 200, spaceXPos2, 200);
spaceXPos = spaceXPos + 20;
}

function draw() {
background("wheat");
}


This is for an independent project, I'm using code.org because it offers an easy-to-use screen for animations and drawing, and I'm also taking an AP CompSci class through it as well.



Here's a link to this code in the Game Lab
https://studio.code.org/projects/gamelab/_w391nq3oEo62S3WOOpWg6NrMrMHNvo8n20gVMDu5hg










share|improve this question




















  • 1





    Welcome to StackOverflow! Can you include the link to that specific code.org game lab? Otherwise, it would be difficult for people to try running your code

    – Andreas
    Nov 14 '18 at 3:16











  • Yeah, no problem, thanks for pointing that out

    – Despacito
    Nov 14 '18 at 3:19
















0















Okay, so in code.org's game lab, they offer a pre-made function called "line();" which should draw a line stemming from a given x1 y1, and x2 y2 coordinate. When I attempted to create a for-loop that would allow me to draw 3 line segments on the same y pixel, the for-loop simply ran forever inside the draw loop, (but not correctly, it just moved the x2 and y2 to the right infinitely), so I moved it outside of the draw loop and now I'm getting no output at all...



var spaceXPos = 70;
var spaceXPos2 = spaceXPos + 25;

for (var i = 0; i < 4; i++){
stroke(rgb(255, 255, 255));
strokeWeight(2);
line(spaceXPos, 200, spaceXPos2, 200);
spaceXPos = spaceXPos + 20;
}

function draw() {
background("wheat");
}


This is for an independent project, I'm using code.org because it offers an easy-to-use screen for animations and drawing, and I'm also taking an AP CompSci class through it as well.



Here's a link to this code in the Game Lab
https://studio.code.org/projects/gamelab/_w391nq3oEo62S3WOOpWg6NrMrMHNvo8n20gVMDu5hg










share|improve this question




















  • 1





    Welcome to StackOverflow! Can you include the link to that specific code.org game lab? Otherwise, it would be difficult for people to try running your code

    – Andreas
    Nov 14 '18 at 3:16











  • Yeah, no problem, thanks for pointing that out

    – Despacito
    Nov 14 '18 at 3:19














0












0








0








Okay, so in code.org's game lab, they offer a pre-made function called "line();" which should draw a line stemming from a given x1 y1, and x2 y2 coordinate. When I attempted to create a for-loop that would allow me to draw 3 line segments on the same y pixel, the for-loop simply ran forever inside the draw loop, (but not correctly, it just moved the x2 and y2 to the right infinitely), so I moved it outside of the draw loop and now I'm getting no output at all...



var spaceXPos = 70;
var spaceXPos2 = spaceXPos + 25;

for (var i = 0; i < 4; i++){
stroke(rgb(255, 255, 255));
strokeWeight(2);
line(spaceXPos, 200, spaceXPos2, 200);
spaceXPos = spaceXPos + 20;
}

function draw() {
background("wheat");
}


This is for an independent project, I'm using code.org because it offers an easy-to-use screen for animations and drawing, and I'm also taking an AP CompSci class through it as well.



Here's a link to this code in the Game Lab
https://studio.code.org/projects/gamelab/_w391nq3oEo62S3WOOpWg6NrMrMHNvo8n20gVMDu5hg










share|improve this question
















Okay, so in code.org's game lab, they offer a pre-made function called "line();" which should draw a line stemming from a given x1 y1, and x2 y2 coordinate. When I attempted to create a for-loop that would allow me to draw 3 line segments on the same y pixel, the for-loop simply ran forever inside the draw loop, (but not correctly, it just moved the x2 and y2 to the right infinitely), so I moved it outside of the draw loop and now I'm getting no output at all...



var spaceXPos = 70;
var spaceXPos2 = spaceXPos + 25;

for (var i = 0; i < 4; i++){
stroke(rgb(255, 255, 255));
strokeWeight(2);
line(spaceXPos, 200, spaceXPos2, 200);
spaceXPos = spaceXPos + 20;
}

function draw() {
background("wheat");
}


This is for an independent project, I'm using code.org because it offers an easy-to-use screen for animations and drawing, and I'm also taking an AP CompSci class through it as well.



Here's a link to this code in the Game Lab
https://studio.code.org/projects/gamelab/_w391nq3oEo62S3WOOpWg6NrMrMHNvo8n20gVMDu5hg







javascript code.org






share|improve this question















share|improve this question













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edited Nov 14 '18 at 3:19







Despacito

















asked Nov 14 '18 at 3:12









DespacitoDespacito

12




12








  • 1





    Welcome to StackOverflow! Can you include the link to that specific code.org game lab? Otherwise, it would be difficult for people to try running your code

    – Andreas
    Nov 14 '18 at 3:16











  • Yeah, no problem, thanks for pointing that out

    – Despacito
    Nov 14 '18 at 3:19














  • 1





    Welcome to StackOverflow! Can you include the link to that specific code.org game lab? Otherwise, it would be difficult for people to try running your code

    – Andreas
    Nov 14 '18 at 3:16











  • Yeah, no problem, thanks for pointing that out

    – Despacito
    Nov 14 '18 at 3:19








1




1





Welcome to StackOverflow! Can you include the link to that specific code.org game lab? Otherwise, it would be difficult for people to try running your code

– Andreas
Nov 14 '18 at 3:16





Welcome to StackOverflow! Can you include the link to that specific code.org game lab? Otherwise, it would be difficult for people to try running your code

– Andreas
Nov 14 '18 at 3:16













Yeah, no problem, thanks for pointing that out

– Despacito
Nov 14 '18 at 3:19





Yeah, no problem, thanks for pointing that out

– Despacito
Nov 14 '18 at 3:19












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