SOLVED How can I offset an object by half a pixel?

[Zabicka]

Hello, i'm trying to offset a bullet object to the center of my player (My game is very low res, so the center of my player object is 2 pixels wide)
and I'm not sure how to do it, I tried lengthdir_x and lengthdir_y but that doesn't work,
then I tried this x+0.5, y+0.5, but that doesn't work neither, because my player object rotates, any ideas?

 

[BattleRifle BR55]

How did you implement the lengthdirs? That's going to be your solution, so post what you tried.

 

[Zabicka]

How did you implement the lengthdirs? That's going to be your solution, so post what you tried.

I tried this:

var _x = x + lengthdir_x(0.5, dir);
var _y = y + lengthdir_y(0.5, dir);

with (instance_create_layer(_x, _y, layer, obj_bullet)) {
      speed = 6;
      direction = other.dir;
      image_angle = direction;
}

Then I tried this:

with (instance_create_layer(x+0.5, y+0.5, layer, obj_bullet)) {
      speed = 6;
      direction = other.dir;
      image_angle = direction;
}

And I also tried this:

var _x = x + lengthdir_x(0.5, dir);
var _y = y + lengthdir_y(0.5, dir);

with (instance_create_layer(_x+0.5, _y+0.5, layer, obj_bullet)) {
      speed = 6;
      direction = other.dir;
      image_angle = direction;
}

 

[Sabnock]

when you say offset half a pixel do you mean actually offset a pixel so you have 1 pixel overlapping 2?

that is not physically possible.

can you make your character 3 pixels wide?

 

[Zabicka]

when you say offset half a pixel do you mean actually offset a pixel so you have 1 pixel overlapping 2?

that is not physically possible.

can you make your character 3 pixels wide?

I solved it.
Here is the code:

        var _value = 0.5;
        var _dir = point_direction(0, 0, _value, _value);
        var _dis = point_distance(0, 0, _value, _value);
    
        var _x = x - lengthdir_x(_dis, _dir + dir);
        var _y = y - lengthdir_y(_dis, _dir + dir);
    
        with (instance_create_layer(_x, _y, layer, obj_bullet)) {
            speed            = other.shot_speed;
            direction       = other.dir;
            image_angle = direction;
        }

 

[TheouAegis]

Well, other than _dir always being 45, and _dis being sqrt(.5), so you could remove that part, glad you figured out a solution.

 

[Sabnock]

I solved it.

Neat.