View difference between Paste ID: QdaKrBEH and bzEK3sre

 /* Creator (and original version at): https://pastebin.com/u/ShaunJS */
 
 //decimal fractions of hsp are stored in hsp_f
 //every frame this fraction is added back in and the new fraction removed again
 //this moves us in whole integers each frame that are still representative of decimal movement
 //for example, at a hsp of 0.1 you would move 1 pixel every 10 frames.
 //this resolves any issues of not detecting a collision at a fractional target (ie: no collision at 3.8, when there is at 4.0)
 //which sometimes caused the player after rounding, to be drawn overlapping walls by 1 pixel.
 
 hsp_final = hsp + hsp_f;
 hsp_f = hsp_final - floor(abs(hsp_final))*sign(hsp_final);
 hsp_final -= hsp_f;
 
 vsp_final = vsp + vsp_f;
 vsp_f = vsp_final - floor(abs(vsp_final))*sign(vsp_final);
 vsp_final -= vsp_f;
 
 //same old place_meeting collision code.
 if (place_meeting(x+hsp_final,y,par_collide))
 {
     var inc = sign(hsp_final);
     while (!place_meeting(x+inc,y,par_collide)) x+= inc;
     hsp_final = 0;
     hsp = 0;
 }
 x+=hsp_final;
 
 if (place_meeting(x,y+vsp_final,par_collide))
 {
     var inc = sign(vsp_final);
     while (!place_meeting(x,y+inc,par_collide)) y+= inc;
     vsp_final = 0;
     vsp = 0;
 }
 y+=vsp_final;