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(svn r7711) -Fix (r7354): NewGRF Action 7, GRF check condition 10 didn't ignore unknown GRF IDs. Also separate GRF ID conditions

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from parameter conditions to remove code duplication in GRF checking code.
This commit is contained in:
peter1138 2007-01-01 01:40:56 +00:00
parent 71c89cf8ee
commit 3ba932e30f
1 changed files with 47 additions and 49 deletions
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76
newgrf.c
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@ -2351,14 +2351,47 @@ static void SkipIf(byte *buf, int len)
return;
}
if (param == 0x88 && GetFileByGRFID(cond_val) == NULL) {
param_val = GetParamVal(param, &cond_val);
grfmsg(7, "Test condtype %d, param 0x%08X, condval 0x%08X", condtype, param_val, cond_val);
if (param == 0x88) {
/* GRF ID checks */
const GRFConfig *c = GetGRFConfig(cond_val);
if (condtype != 10 && c == NULL) {
grfmsg(7, "GRFID 0x%08X unknown, skipping test", BSWAP32(cond_val));
return;
}
param_val = GetParamVal(param, &cond_val);
switch (condtype) {
/* Tests 6 to 10 are only for param 0x88, GRFID checks */
case 6: /* Is GRFID active? */
result = HASBIT(c->flags, GCF_ACTIVATED);
break;
grfmsg(7, "Test condtype %d, param 0x%08X, condval 0x%08X", condtype, param_val, cond_val);
case 7: /* Is GRFID non-active? */
result = !HASBIT(c->flags, GCF_ACTIVATED);
break;
case 8: /* GRFID is not but will be active? */
result = !HASBIT(c->flags, GCF_ACTIVATED) && !HASBIT(c->flags, GCF_DISABLED);
break;
case 9: /* GRFID is or will be active? */
result = !HASBIT(c->flags, GCF_NOT_FOUND) && !HASBIT(c->flags, GCF_DISABLED);
break;
case 10: /* GRFID is not nor will be active */
/* This is the only condtype that doesn't get ignored if the GRFID is not found */
result = c == NULL || HASBIT(c->flags, GCF_DISABLED) || HASBIT(c->flags, GCF_NOT_FOUND);
break;
default: grfmsg(1, "Unsupported GRF test %d. Ignoring", condtype); return;
}
} else {
/* Parameter or variable tests */
switch (condtype) {
case 0: result = !!(param_val & (1 << cond_val));
break;
@ -2373,44 +2406,9 @@ static void SkipIf(byte *buf, int len)
case 5: result = (param_val & mask) > cond_val;
break;
/* Tests 6 to 10 are only for param 0x88, GRFID checks */
case 6: { /* Is GRFID active? */
const GRFConfig *c = GetGRFConfig(cond_val);
if (c == NULL) return;
result = HASBIT(c->flags, GCF_ACTIVATED);
break;
}
case 7: { /* Is GRFID non-active? */
const GRFConfig *c = GetGRFConfig(cond_val);
if (c == NULL) return;
result = !HASBIT(c->flags, GCF_ACTIVATED);
break;
}
case 8: { /* GRFID is not but will be active? */
const GRFConfig *c = GetGRFConfig(cond_val);
if (c == NULL) return;
result = !HASBIT(c->flags, GCF_ACTIVATED) && !HASBIT(c->flags, GCF_DISABLED);
break;
}
case 9: { /* GRFID is or will be active? */
const GRFConfig *c = GetGRFConfig(cond_val);
if (c == NULL) return;
result = !HASBIT(c->flags, GCF_NOT_FOUND) && !HASBIT(c->flags, GCF_DISABLED);
break;
}
case 10: { /* GRFID is not nor will be active */
const GRFConfig *c = GetGRFConfig(cond_val);
/* This is the only condtype that doesn't get ignored if the GRFID is not found */
result = c == NULL || HASBIT(c->flags, GCF_DISABLED) || HASBIT(c->flags, GCF_NOT_FOUND);
break;
}
default: grfmsg(1, "Unsupported test %d. Ignoring", condtype); return;
}
}
if (!result) {
grfmsg(2, "Not skipping sprites, test was false");