Projectile Movement C++

Pelayo M · 2013-01-20T11:19:16

Hi, I am using C++ and trying to make my player shoot projectiles. I have done OK so far, but the problem is that what I have done to move them is just use: bulletX += xOffset( betwen player and mouse ) /100 bulletY += yOffset / 100 This gave me the right direction although there was an issue, the closer the mouse was to the player, the slower the bullet went ( as you can probably tell from the code above ). I have tried: Dlen = sqrt(Dx*Dx + Dy*Dy) Dx/=Dlen; Dy/=Dlen Bx=Bx+Dx*Bs; By=By+Dy*Bs; *Dlen = normalised value, Dx = xOffset, Dy = yOffset, Bx= bulletX, By= bulletY, Bs = bullet Speed. but I was unsuccesful.... the bullet went in completely random directions very different to where I was aiming. I also tried to find a ratio : yOffset / xOffset and then always move X by 1 or -1 and y by 1 or -1 multiplied by the ratio. Again unscuccesful. Is there any way to achieve a constant speed when shooting projectiles from a player in the direction of the mouse cursor that will work? Please put an explained example.

For Beginners

Started by mypel16000 January 09, 2013 10:36 PM

9 comments, last by mypel16000 11 years, 2 months ago

mypel16000

Author

January 20, 2013 11:19 AM

I am sorry for this, I was just having a bad day and was very frustrated. Thank you for all your help, I have checked all tutorials and comments and its helped me to move on.

To anyone looking for a solution, the best solution was:

Dlen = sqrt(Dx*Dx + Dy*Dy) //Finding a ratio

Dx/=Dlen; //Creating a velocity figure

Dy/=Dlen //( two )

Bx=Bx+Dx*Bs; // Using the BulletX += Dx(the velocity figure)

By=By+Dy*Bs;

@Madhead, sorry for criticising your tutorial. What was wrong with it was that the closer you got to the plane, the slower the projectile went. This was my problem originally, but I didn't realise it was an intended function of the tutorial.

@Aardvajk. Believe me, two minutes on google did not solve this, but it is true that the advise was correct.

@BeerNutts. Again, was having a bad day. Sorry everyone

Projectile Movement C++

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Projectile Movement C++

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