[SOLVED] Precise Collision Check (x,y)

[Turkish Coffee]

Greetings,

I'm making a boss for my game and that boss launches a fireball and this fireball moves towards the coords thats given when fireball is created and the coords gets determined by creating an object on top of the player. (It just gets it )

The problem is,
I want to get a return when the fireball collides with the explosion marker object's middle, or we can say x and y's of it right?

 

[jo-thijs]

I case you're familiar with how to use code, you can use the function position_meeting(x, y, object) for this.

 

[Turkish Coffee]

I case you're familiar with how to use code, you can use the function position_meeting(x, y, object) for this.

I've tried many ways but here is what I've got

//STEP EVENT of Fireball 
var hit = position_meeting(objBossMageLaserBeam.closestenemy.x,objBossMageLaserBeam.closestenemy.y,objBossMageIonBallHitMarker) //These x and y coords are the coords of objBossMageIonBallHitMarker

if (hit)
 {
  objBossMageIonBallHitMarker.image_speed=1;
  instance_destroy();
 }

this code teleports the fireball to the hit marker and I don't want it to teleport

 

[jo-thijs]

You don't want to check if the marker collides with the middle of the marker,
you want to check if the fireball collides with the middle of the marker.

Change the third argument of position_meeting to the variable: id

 

[Turkish Coffee]

Fireball just passes through the marker

//Step Event of Fireball
var hit = position_meeting(objBossMageLaserBeam.closestenemy.x,objBossMageLaserBeam.closestenemy.y,id)

if (hit) {
  objBossMageIonBallHitMarker.image_speed=1; //IonBall = Fireball :P
  instance_destroy();
 }

 

[jo-thijs]

Are you sure you're using the correct x and y coordinates?
Are you also sure the fireball goes slow enough to not teleport over the spot?
Is there any other relevant code?

 

[Turkish Coffee]

Fireball is moving with a speed of 1 and I use the same coords that I create the hit marker.

 

[jo-thijs]

Sounds to me like you actually want to use this:

//Step Event of Fireball
var hit = position_meeting(objBossMageIonBallHitMarker.x,objBossMageIonBallHitMarker.y,id)

if (hit) {
  objBossMageIonBallHitMarker.image_speed=1; //IonBall = Fireball :P
  instance_destroy();
 }

Do you destroy the generated hit markers when they're no longer necessary?

 

[Turkish Coffee]

Yep, that worked as I wanted and..yes I do destroy them within the animation end function. I kinda know thats not good to do but I just do it like that. You have any idea for it?

 

[jo-thijs]

I'm glad the issue got solved!

For recommending best practices, I would need more information about your project though.

 

[Turkish Coffee]

I'm glad the issue got solved!

For recommending best practices, I would need more information about your project though.

Thanks for your help and I'll probably open a new thread called "lagging, fps drop" or something like that after I finish my game