[DBPro]-[Blitzterrain] - Saving and loading terrain

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Kezzla

16

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Joined: 21st Aug 2008

Location: Where beer does flow and men chunder

Posted: 25th Jun 2011 10:17

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Hi,
I've been trying to write a subroutine for saving and loading a terrain using blitzterrain

It works fine saving the terrain, but I can't seem to able to load it, the program just freezes. (exits immediately on esc key, so its not chunking)

here's the code i'm using.

+ Code Snippet

if KEYSTATE(59) = 1
                                input name$
                                name$ = name$ + ".blt"
                                bt saveterrain 1,name$
                                filename$ = name$
               endif
                if keystate(60) = 1
                    
                    bt deleteterrain g_terrainID
                    g_TerrainID=BT LoadTerrain(filename$,g_TerrainObjectID,1)
                    
                    BT SetTerrainTexture g_TerrainID,g_TextureImgID
                    BT SetTerrainDetail g_TerrainID,g_DetailmapImgID
                    BT BuildTerrain g_TerrainID,g_TerrainObjectID,1
                endif

At the start of the project I load a flat terrain which loads fine.

my debugger is on strike so I'm unable to see what its hanging on.

any suggestions or advice would be greatly appreciated.
thanks
kezzla

Sometimes I like to use words out of contents

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Cybermind

Valued Member

21

Years of Service

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Joined: 28th Nov 2002

Location: Denmark

Posted: 25th Jun 2011 22:20 Edited at: 25th Jun 2011 22:44

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I have no experience with blitz terrain, but here is a few pointers:
if keystate(60) = 1 <- This will produce several rapid executions of the routine if nothing stops it.

if keystate(60) = 1 and key_60_stop = 0 (all variables are set to zero if nothing else is stated, so the first time the code hits this line, key_60_stop will be = 0)
key_60_stop = 1
code code code
endif

if keystate(60) = 0 then key_60_stop = 0

Cheers

EDIT: I can see you start by deleting a terrain, what happens if there is no terrain to delete?

The byte chrunchers are coming...
DIVIDING BY ZERO/BECAUSE WE SUCK...

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Kezzla

16

Years of Service

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Joined: 21st Aug 2008

Location: Where beer does flow and men chunder

Posted: 26th Jun 2011 03:25

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Thankyou for your help cybermind.

I added the upkey condition into the statement and it still hangs.

i was hoping it was a double delete issue but it doesn't seem to be.
if there was no terrain that would hang, or crash the program.

I might ask in the blitz terrain thread and then post the solution here.

thanks again

kezzla

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