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# Problem with shooting bullets in both directions (Platformer)

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2 replies to this topic

### #1coderNull  Members

Posted 03 July 2013 - 07:36 PM

I have a question about shooting bullets on to the left side of the screen. I tried implementing a bullet class and the bullets would always change direction mid air depending on which direction the player was going. For example: if i were to shoot to the right the bullets would move to the right until i move the player to the left in which case all the bullet arrays start moving left. Is there a﻿ way to make all of my bullets keep going a certain direction? I know there's an easy way to do this and it's just going above my head. Thanks in advance. Here is my Bullet class..

#include "Bullet.h"

Bullet::Bullet(void)
{
}

Bullet::~Bullet(void)
{
}

void Bullet::Init()
{
bulletSpeed = 10;
canShoot = 1;
counter = 1;
}

void Bullet::Shoot(BITMAP *buffer, Player player)
{
if(key[KEY_SPACE] && canShoot == 1)
{
for(int i = counter; i < maxBullets; ++i)
{
bulletX[i] = player.getX();
bulletY[i] = player.getY();
}

++counter;
canShoot = 0;
}

if(!key[KEY_SPACE])
{
if(canShoot == 0)
{
canShoot = 1;
}
}

for(int i = 1; i <= counter; ++i)
{
if(player.getHDir() == 1) // '1' means the player is facing to the right
{
bulletX[i] += bulletSpeed;
}
else
{
bulletX[i] -= bulletSpeed;
}
circlefill(buffer, bulletX[i], bulletY[i], 5, makecol(15, 50, 255));
}
}

### #2SimonForsman  Members

Posted 03 July 2013 - 07:45 PM

just store the direction for each bullet as well as the position, set the direction when the bullet is fired.

I don't suffer from insanity, I'm enjoying every minute of it.
The voices in my head may not be real, but they have some good ideas!

### #3coderNull  Members

Posted 03 July 2013 - 08:08 PM

just store the direction for each bullet as well as the position, set the direction when the bullet is fired.

Thanks alot, worked like a charm.

Old topic!

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