thank buts not realy wat i want.

i want to give the heigth lets say z = 5 my entity wil always be my.z == 5 but then on the mouse_position

btw you reinvented the wheel there you could simple do this

Code:
vec_set(kreis_pos,vector(mouse_pos.x,mouse_pos.y,10000));
vec_for_screen(kreis_pos,camera);

my.skill1=c_trace(camera.x,kreis_pos.x,IGNORE_SPRITES + IGNORE_MODELS);

vec_set(kreis_pos,vector(mouse_pos.x,mouse_pos.y,my.skill1));
vec_for_screen(kreis_pos,camera);
vec_set(my.x,kreis_pos);