big map example

[nemezes]

I take the code from here: smd.originalvgo.com/smd/viewtopic.php?f=6&t=19 and made some adaptations to work with imagenesis and SecondBASIC (port it to BEX is easy).

I used the free program TILED to prepare my image to use. To convert using imagenesis, I use the option optimized.

-> fundo_tile.bin was made using "export tile data"
-> fundo_paleta.bin was made using "export palette data"
-> fundo_tilemap.bin was made using "export tile map"

as the background image is the same of collision map, to generate the collision map (fundo_colisao.bin) I used the same fundo_tilemap.bin

you can turn on/off gravity by pressing B.

when gravity is on, you can jump by pressing C.

later I will try to add comments in english and to make an example with the background different from collision map. 

all comments in the code are in portuguese.

here is a video preview:

Attachments:

codigo plataforma v5.zip (178.41 KB)

[Deleted]

Nice demo!

The creator of SecondBASIC made a blog entry on how to utilize collision maps efficiently using a 1D a array that's separate from a background map: www.second-dimension.com/blog/8/

You can also create a collision map if your tiles are ordered properly (my favorite way to do it as it's 1 map). For example, suppose you have 10 floor tiles (can jump through from the bottom) and 10 wall tiles (where you clonk your head). You pull the (x,y) of the camera + character to read the map data.

Now suppose your floor and wall tiles are tile numbers 1 through 20 (1-10 = floor, 11-20 = wall):


   ' maths to get your camera position in relation to the map (stored in the offset variable, generally y*MaxX+x+CharX)
   Reload MyMap, offset
   ReadInt FloorTileNum

   If FloorTileNum > 0 and FloorTileNum <= 20 Then gravity = 0 ' or walking, if this is part of your walk routine)