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Flappy Bird: is there a way to find the spawn - rate of the poles?

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0

I have made a working Flappy Bird game, but the green poles are spawning in a weird way. I have done it like this:

• frameCount is a p5.js variable counting the frames


• draw is a p5.js function that will be done every frame

 let game_speed = 1;
 let max_speed = 1000;
 let spawn_rate = Math.round(max_speed / game_speed);
 function draw()
 if(frameCount % spawn_rate === 0)
 generateNewPole();
 game_speed += (game_speed < max_speed / 10)? 0.001 : 0;
 spawn_rate = Math.round(max_speed / game_speed);
 

I have tried the following formulas for the spawn_rate :

• 
  

  Math.round(max_speed - game_speed)

  
  
  
  • This didn't work even close to good
  
  


• 
  

  Math.round(max_speed / game_speed)

  
  
  
  • This worked ok, but I have random big gaps everywhere
  
  


• 
  

  Math.round((max_speed - game_speed) / game_speed)

  
  
  
  • This worked also quite well, except for random gaps here too
  
  


• 
  

  Math.round((max_speed - game_speed) / (max.speed / game.speed))

  
  
  
  • The poles spawned at a god-speed rate
  
  


• 
  

  Math.round(max_speed / Math.round(game_speed))

  
  
  
  • Also random gaps
  
  


• 
  

  if(Math.round(frameCount * game.speed) % max_speed === 0)

  
  
  
  • Yeah... not a single pole spawned at all
  
  

For the second and third things I tried (see above), I expected them to work, but there are still spaces. This might be because of JavaScript's way of handling decimal numbers (It sucks at it) or I am just dumb and doing something completely wrong

edit: here is a link to my code

javascript

share|improve this question

edited Mar 24 at 21:20

FreeRun Life

asked Mar 24 at 20:42

FreeRun LifeFreeRun Life

11

add a comment | 

0

I have made a working Flappy Bird game, but the green poles are spawning in a weird way. I have done it like this:

• frameCount is a p5.js variable counting the frames


• draw is a p5.js function that will be done every frame

 let game_speed = 1;
 let max_speed = 1000;
 let spawn_rate = Math.round(max_speed / game_speed);
 function draw()
 if(frameCount % spawn_rate === 0)
 generateNewPole();
 game_speed += (game_speed < max_speed / 10)? 0.001 : 0;
 spawn_rate = Math.round(max_speed / game_speed);
 

I have tried the following formulas for the spawn_rate :

• 
  

  Math.round(max_speed - game_speed)

  
  
  
  • This didn't work even close to good
  
  


• 
  

  Math.round(max_speed / game_speed)

  
  
  
  • This worked ok, but I have random big gaps everywhere
  
  


• 
  

  Math.round((max_speed - game_speed) / game_speed)

  
  
  
  • This worked also quite well, except for random gaps here too
  
  


• 
  

  Math.round((max_speed - game_speed) / (max.speed / game.speed))

  
  
  
  • The poles spawned at a god-speed rate
  
  


• 
  

  Math.round(max_speed / Math.round(game_speed))

  
  
  
  • Also random gaps
  
  


• 
  

  if(Math.round(frameCount * game.speed) % max_speed === 0)

  
  
  
  • Yeah... not a single pole spawned at all
  
  

For the second and third things I tried (see above), I expected them to work, but there are still spaces. This might be because of JavaScript's way of handling decimal numbers (It sucks at it) or I am just dumb and doing something completely wrong

edit: here is a link to my code

javascript

share|improve this question

edited Mar 24 at 21:20

FreeRun Life

asked Mar 24 at 20:42

FreeRun LifeFreeRun Life

11

add a comment | 

I have made a working Flappy Bird game, but the green poles are spawning in a weird way. I have done it like this:

• frameCount is a p5.js variable counting the frames


• draw is a p5.js function that will be done every frame

 let game_speed = 1;
 let max_speed = 1000;
 let spawn_rate = Math.round(max_speed / game_speed);
 function draw()
 if(frameCount % spawn_rate === 0)
 generateNewPole();
 game_speed += (game_speed < max_speed / 10)? 0.001 : 0;
 spawn_rate = Math.round(max_speed / game_speed);
 

I have tried the following formulas for the spawn_rate :

• 
  

  Math.round(max_speed - game_speed)

  
  
  
  • This didn't work even close to good
  
  


• 
  

  Math.round(max_speed / game_speed)

  
  
  
  • This worked ok, but I have random big gaps everywhere
  
  


• 
  

  Math.round((max_speed - game_speed) / game_speed)

  
  
  
  • This worked also quite well, except for random gaps here too
  
  


• 
  

  Math.round((max_speed - game_speed) / (max.speed / game.speed))

  
  
  
  • The poles spawned at a god-speed rate
  
  


• 
  

  Math.round(max_speed / Math.round(game_speed))

  
  
  
  • Also random gaps
  
  


• 
  

  if(Math.round(frameCount * game.speed) % max_speed === 0)

  
  
  
  • Yeah... not a single pole spawned at all
  
  

For the second and third things I tried (see above), I expected them to work, but there are still spaces. This might be because of JavaScript's way of handling decimal numbers (It sucks at it) or I am just dumb and doing something completely wrong

edit: here is a link to my code

javascript

share|improve this question

edited Mar 24 at 21:20

FreeRun Life

asked Mar 24 at 20:42

FreeRun LifeFreeRun Life

11

 let game_speed = 1;
 let max_speed = 1000;
 let spawn_rate = Math.round(max_speed / game_speed);
 function draw()
 if(frameCount % spawn_rate === 0)
 generateNewPole();
 game_speed += (game_speed < max_speed / 10)? 0.001 : 0;
 spawn_rate = Math.round(max_speed / game_speed);
 

share|improve this question

edited Mar 24 at 21:20

FreeRun Life

asked Mar 24 at 20:42

FreeRun LifeFreeRun Life

11

share|improve this question

edited Mar 24 at 21:20

FreeRun Life

asked Mar 24 at 20:42

FreeRun LifeFreeRun Life

11

asked Mar 24 at 20:42

FreeRun LifeFreeRun Life

11

asked Mar 24 at 20:42

FreeRun LifeFreeRun Life

11

1 Answer
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Math.round(max_speed / game_speed)

I can hazard a guess that the big gaps you describe are caused by Math.round when it switches from rounding down to rounding up (and vice versa). I suspect you'd get more consistant behaviour if you switched to Math.floor or Math.ceil.

share|improve this answer

answered Mar 24 at 21:00

ScootsScoots

2,20711428

add a comment | 

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0

Math.round(max_speed / game_speed)

I can hazard a guess that the big gaps you describe are caused by Math.round when it switches from rounding down to rounding up (and vice versa). I suspect you'd get more consistant behaviour if you switched to Math.floor or Math.ceil.

share|improve this answer

answered Mar 24 at 21:00

ScootsScoots

2,20711428

add a comment | 

0

Math.round(max_speed / game_speed)

I can hazard a guess that the big gaps you describe are caused by Math.round when it switches from rounding down to rounding up (and vice versa). I suspect you'd get more consistant behaviour if you switched to Math.floor or Math.ceil.

share|improve this answer

answered Mar 24 at 21:00

ScootsScoots

2,20711428

add a comment | 

Math.round(max_speed / game_speed)

I can hazard a guess that the big gaps you describe are caused by Math.round when it switches from rounding down to rounding up (and vice versa). I suspect you'd get more consistant behaviour if you switched to Math.floor or Math.ceil.

share|improve this answer

answered Mar 24 at 21:00

ScootsScoots

2,20711428

Math.round(max_speed / game_speed)

share|improve this answer

answered Mar 24 at 21:00

ScootsScoots

2,20711428

answered Mar 24 at 21:00

ScootsScoots

2,20711428

answered Mar 24 at 21:00

ScootsScoots

2,20711428