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(svn r4821) - NewGRF: simplify parameter retrieval in Action 0x0D

This commit is contained in:
peter1138 2006-05-11 09:54:11 +00:00
parent b0f096a7a5
commit 151e79231d
1 changed files with 12 additions and 20 deletions
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32
newgrf.c
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@ -1940,11 +1940,15 @@ static uint32 GetParamVal(byte param, uint32 *cond_val)
case 0x84: /* .grf loading stage, 0=initialization, 1=activation */
return _cur_stage;
case 0x85: { /* TTDPatch flags, only for bit tests */
uint32 param_val = _ttdpatch_flags[*cond_val / 0x20];
*cond_val %= 0x20;
return param_val;
}
case 0x85: /* TTDPatch flags, only for bit tests */
if (cond_val == NULL) {
/* Supported in Action 0x07 and 0x09, not 0x0D */
return 0;
} else {
uint32 param_val = _ttdpatch_flags[*cond_val / 0x20];
*cond_val %= 0x20;
return param_val;
}
case 0x86: /* road traffic side, bit 4 clear=left, set=right */
return _opt.road_side << 4;
@ -1980,7 +1984,6 @@ static uint32 GetParamVal(byte param, uint32 *cond_val)
grfmsg(GMS_WARN, "Unsupported in-game variable 0x%02X.", param);
return -1;
}
}
/* Action 0x07 */
@ -2304,7 +2307,7 @@ static void ParamSet(byte *buf, int len)
if (GB(data, 0, 8) == 0xFF) {
if (data == 0x0000FFFF) {
/* Patch variables */
grfmsg(GMS_WARN, "ParamSet: Reading Patch variables unsupport.");
grfmsg(GMS_WARN, "ParamSet: Reading Patch variables unsupported.");
return;
} else {
/* GRF Resource Management */
@ -2326,19 +2329,8 @@ static void ParamSet(byte *buf, int len)
* variables available in action 7, or they can be FF to use the value
* of <data>. If referring to parameters that are undefined, a value
* of 0 is used instead. */
if (src1 == 0xFF) {
src1 = data;
} else {
uint32 temp;
src1 = GetParamVal(src1, &temp);
}
if (src2 == 0xFF) {
src2 = data;
} else {
uint32 temp;
src2 = GetParamVal(src2, &temp);
}
src1 = (src1 == 0xFF) ? data : GetParamVal(src1, NULL);
src2 = (src2 == 0xFF) ? data : GetParamVal(src2, NULL);
}
/* TODO: You can access the parameters of another GRF file by using