View problems

[dwmitch]

I notice in games such as the Final Fantasy series the character has to be directly in the center of the screen for the view to follow them. I have figured out to an extent how to achieve this using the following:

Problem fixed. Source code removed due to newly realized security issues.

The problem is, if I have a room with a width of 640 it will put the rightmost boundary in the center of the view before it stops.

Setting the draw event for the player to draw view_left[0] + view_width[0] shows that at the start, with a 640 x 480 viewport, the rightmost boundary is already at the room width in a 640 by x room, meaning it shouldn't move.

However, when the player walks to the right (direction 0) once he gets to the x center of the view it will keep going until the rightmost boundary is at 960, which is well beyond the boundary defined in the room settings (as confirmed by having the player object draw the room width).

I suspect that the problem lies with the first if statement, but I don't know how to fix it. I've tried just using view_width[0] alone with the same results. I've tinkered with the statement that keeps the view centered on the player (to keep from interrupting the scrolling when the player hits an object and doubles back), but that allowed the view to move infinitely.

If anyone wants to try out this code, it is a script run in the step event of the player character, with vel being declared in the create event of said character.

[IsmAvatar]

In plain english, could you briefly explain what it is you want to happen? I haven't played the final fantasy series.

[Xenithnot logged]

i didn't bother to read the whole post cuz it was so long but i know what you're talking about and you don't need any coding for it, cuz you can manually do it in the views settings here for example is one that is working

set the width of view to 256 and length to 224

set the hbor to 123 and vbor to 107

just play around with the settings to get it the way you want it

[dwmitch]

Ism: In the Final Fantasy series on the screens that scroll it only scrolls when the player is either in the x center or the y center of the viewport. In other words, assuming a 640 x 480 viewport (judging by the size of the backgrounds, I would say this is wrong, but for the sake of the post) it only scrolls vertically when the player is at position 240 on the y axis, and it only scrolls horizontally when they are at position 320 on the x axis.

Xenith: That was the original way I tried it, but with every setting I tried you either had to move a few pixels to get it to start scrolling (one of my pet peeves with homemade games) or the view bounces when it scrolls, which renders it unplayable.

The method I have now works for the most part, but it seems to extend past the right border of the room by roughly 1/2 of the width. It will stop when you're going left and the view is at the leftmost border of the room.

There's not an undocumented view_right variable, is there? I know in some programs there are some features left out.

EDIT: I fixed it. I had some of my expression reversed.

[IsmAvatar]

there is no view_right, but creating such is simple.

view_right = view_left + view_width


anywhom, to fix the problem of an uneven center, simply add 1 pixel to the width/height of the sprite/mask of the object the view follows.
to fix an extended view (where it goes off grid for the rightmost square or bottommost), simply modify the room_width or room_height.

[dwmitch]

I had it working perfectly, then I got GM 6.0. I would like to do a port of my current project, because it handles video cutscenes better and it seems to use direct sound for audio. Previous versions may have (I haven't researched it), but it seems to enhance MIDI files the same way the example programs that come with the DX8 SDK do.

The problem I'm having is that the script relied heavily on view_left and view_top, but no matter how many times I read over the documentation, I can't seem to find a command in the new version that would do the same thing. Both commands have been removed.

[IsmAvatar]

looks to me they have been replaced with more logical constants
view_xview[0..7] X position of the view in the room.
view_yview[0..7] Y position of the view in the room.