Good grid based movement

[pete456]

I might just be blind, but I have looked everywhere. I need a way to create continous grid based movement, not https://love2d.org/wiki/Tutorial:Effici ... _Scrolling.
Thanks

[zorg]

Hi and welcome to the forums.

"Continuous movement" (pixel-based) and "Grid-based movement" (tile-based) are usually not implemented at the same time for the same object/entity, you're either snapped to the tiles or not (old bomberman games use a third method that's "in the middle"); if you could provide an already existing game as an example, we could guess what you actually are looking for.

[Nixola]

I think he means tweened grid-based movement, like Pokémon.

[Inny]

Pokemon works by having the next maps loaded up as the player approaches the boundary, but the functions to draw maps accepts offset values so that they can draw the next map. When the player moves outside one and onto the next, the current map and the next map switch, and then the new active map is initialized (sprites placed, etc), the player's relative position is changed, and all the bookkeeping is done.

In a sense, when the player moves from (20, 0) to (20, -1), the game quickly moves the player to (20, 63) and moves the active map from (0, 0) to (0, 64) and the other map from (0, -64) to (0, 0).

I'm pretty sure I remember the old gameboy color version would change palettes on some levels where this happened.

[Nixola]

I think the question's about something much more basic, movement itself (gridlocked with tweening/animations).

[DiegoG]

If you're asking about how to implement it, I'd suggest you take a look at a game I made (If you can decipher the ABSOLUTE MESS that is that code, mostly because of deadlines and lack of experience) called PAC-MATH; specifically check the game.lua file.

[erasio]

Someone on reddit had an issue with movement recently and posted his code. It's doing exactly that! Here's the pastebin!

The basic idea is to have two locations. The location on the grid and the location on the screen.
For gameplay you only modify the location on the grid. For rendering (drawing) you only use the screen location.
And during update you make the screen location move towards the grid location.