Constanly Scrolling View

[SmallyBiggs]

I'm experimenting with views, and I'm wondering if its possible to have a constantly vertically scrolling view that the player must outrun. (Or more specifically, "out climb" using platforms). I haven't been able to find any info on this subject, so any ideas or links to more info are greatly appreciated!

 

[jackhigh24]

you keep the view still and move the backgrounds and everything else past the player, that way you can keep a tiny room that looks like its goes on forever.

 

[jo-thijs]

Don't let the view follow any object and use this code in a step event:

view_yview[0] -= 1;

and let the player object execute this in its end step event:

if bbox_top >= view_yview[0] + view_hview[0]
    // kill the player here, because he fell to low

 

[SmallyBiggs]

doublepost

 

[SmallyBiggs]

Don't let the view follow any object and use this code in a step event:

view_yview[0] -= 1;

and let the player object execute this in its end step event:

if bbox_top >= view_yview[0] + view_hview[0]
    // kill the player here, because he fell to low

New Ah this seems to make sense. Thank You! However I'd like to know, what does the variable "bbox_top refer to?

 

[jo-thijs]

You're welcome!

bbox_top is the y coordinate of the topmost pixel colliding with the non-precise hitbox of the executing instance.

If your object doesn't have a mask and you let GameMaker automatically take care of hitboxes for sprites
and you use the default (no) draw event for your object and then change then put this code in the draw event:

draw_self();
draw_set_colour(c_red);
draw_set_alpha(1);
draw_rectangle(bbox_left, bbox_top, bbox_right + 1, bbox_bottom + 1, true);

then you should see a red rectangle that surrounds the instance's sprite perfectly (maybe 1 pixel off, because of the thickness of the rectangle).
This maintains its effect when playing around with image_xscale, image_yscale and image_angle.