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common: tidy up version check in LoadBSPFile 

Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
This commit is contained in:
Kevin Shanahan 2013-09-23 12:24:31 +09:30
parent e970bea8c7
commit fbab3d4859
1 changed files with 31 additions and 4 deletions
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35
common/bspfile.c
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@ -202,6 +202,32 @@ CopyLump(const dheader_t *header, int lumpnum, void *destptr)
return length / size;
}
static const char *
BSPVersionString(int version)
{
static char buffer[20];
switch (version) {
case BSP2VERSION:
return "BSP2";
default:
snprintf(buffer, sizeof(buffer), "%d", version);
return buffer;
}
}
static qboolean
BSPVersionSupported(int version)
{
switch (version) {
case BSPVERSION:
case BSP2VERSION:
return true;
default:
return false;
}
}
/*
* =============
* LoadBSPFile
@ -217,10 +243,10 @@ LoadBSPFile(const char *filename, bspdata_t *bsp)
LoadFile(filename, &header);
/* check the file version */
bsp->version = header->version = LittleLong(header->version);
logprint("BSP is version %i\n", header->version);
if (header->version != BSPVERSION)
Error("Sorry, only bsp version %d supported.", BSPVERSION);
header->version = LittleLong(header->version);
logprint("BSP is version %s\n", BSPVersionString(header->version));
if (!BSPVersionSupported(header->version))
Error("Sorry, this bsp version is not supported.");
/* swap the lump headers */
for (i = 0; i < BSP_LUMPS; i++) {
@ -230,6 +256,7 @@ LoadBSPFile(const char *filename, bspdata_t *bsp)
/* copy the data */
memset(bsp, 0, sizeof(*bsp));
bsp->version = header->version;
bsp->nummodels = CopyLump(header, LUMP_MODELS, &bsp->dmodels);
bsp->numvertexes = CopyLump(header, LUMP_VERTEXES, &bsp->dvertexes);
bsp->numplanes = CopyLump(header, LUMP_PLANES, &bsp->dplanes);