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(svn r6960) - Feature: NewGRF: Implement some support for GRF Resource Management (GRM)

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peter1138 2006-10-27 13:15:21 +00:00
parent eb45bf6340
commit 940acf4e4d
1 changed files with 98 additions and 4 deletions
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102
newgrf.c
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@ -90,14 +90,14 @@ typedef enum grfspec_feature {
typedef void (*SpecialSpriteHandler)(byte *buf, int len);
static const int _vehcounts[4] = {
static const uint _vehcounts[4] = {
/* GSF_TRAIN */ NUM_TRAIN_ENGINES,
/* GSF_ROAD */ NUM_ROAD_ENGINES,
/* GSF_SHIP */ NUM_SHIP_ENGINES,
/* GSF_AIRCRAFT */ NUM_AIRCRAFT_ENGINES
};
static const int _vehshifts[4] = {
static const uint _vehshifts[4] = {
/* GSF_TRAIN */ 0,
/* GSF_ROAD */ ROAD_ENGINES_INDEX,
/* GSF_SHIP */ SHIP_ENGINES_INDEX,
@ -111,6 +111,9 @@ enum {
static uint16 cargo_allowed[TOTAL_NUM_ENGINES];
static uint16 cargo_disallowed[TOTAL_NUM_ENGINES];
/* Contains the GRF ID of the owner of a vehicle if it has been reserved */
static uint32 _grm_engines[TOTAL_NUM_ENGINES];
/* Debugging messages policy:
*
* These should be the severities used for direct DEBUG() calls
@ -2595,8 +2598,91 @@ static void ParamSet(byte *buf, int len)
return;
} else {
/* GRF Resource Management */
grfmsg(GMS_NOTICE, "ParamSet: GRF Resource Management unsupported.");
return;
if (_cur_stage != 2) {
/* Ignore GRM during initialization */
src1 = 0;
} else {
uint8 op = src1;
uint8 feature = GB(data, 8, 8);
uint16 count = GB(data, 16, 16);
switch (feature) {
case 0x00: /* Trains */
case 0x01: /* Road Vehicles */
case 0x02: /* Ships */
case 0x03: /* Aircraft */
{
uint start = 0;
uint size = 0;
uint shift = _vehshifts[feature];
uint i;
if (op == 6) {
/* Return GRFID of set that reserved ID */
src1 = _grm_engines[shift + _cur_grffile->param[target]];
break;
}
/* With an operation of 2 or 3, we want to reserve a specific block of IDs */
if (op == 2 || op == 3) start = _cur_grffile->param[target];
for (i = start; i < _vehcounts[feature]; i++) {
if (_grm_engines[shift + i] == 0) {
size++;
} else {
if (op == 2 || op == 3) break;
start = i + 1;
size = 0;
}
if (size == count) break;
}
if (size == count) {
/* Got the slot... */
if (op == 0 || op == 3) {
grfmsg(GMS_NOTICE, "GRM: Reserving %d vehicles at %d", count, start);
for (i = 0; i < count; i++) _grm_engines[shift + start + i] = _cur_grffile->grfid;
}
src1 = start;
} else {
/* Unable to allocate */
if (op != 4 && op != 5) {
/* Deactivate GRF */
grfmsg(GMS_FATAL, "GRM: Unable to allocate %d vehicles, deactivating", count);
SETBIT(_cur_grffile->flags, 2);
return;
}
grfmsg(GMS_WARN, "GRM: Unable to allocate %d vehicles", count);
src1 = -1;
}
break;
}
case 0x08: /* General sprites */
switch (op) {
case 0:
/* 'Reserve' space at the current sprite ID */
src1 = _cur_spriteid;
_cur_spriteid += count;
break;
case 1:
src1 = _cur_spriteid;
break;
default:
grfmsg(GMS_WARN, "GRM: Unsupported operation %d for general sprites", op);
return;
}
break;
default:
grfmsg(GMS_WARN, "GRM: Unsupported feature 0x%X", feature);
return;
}
}
}
} else {
/* Read another GRF File's parameter */
@ -3116,6 +3202,9 @@ static void ResetNewGRFData(void)
memset(&cargo_allowed, 0, sizeof(cargo_allowed));
memset(&cargo_disallowed, 0, sizeof(cargo_disallowed));
// Reset GRM reservations
memset(&_grm_engines, 0, sizeof(_grm_engines));
// Unload sprite group data
UnloadWagonOverrides();
UnloadRotorOverrideSprites();
@ -3361,6 +3450,11 @@ static void LoadNewGRFFile(const char* filename, uint file_index, uint stage)
if (type == 0xFF) {
if (_skip_sprites == 0) {
DecodeSpecialSprite(num, stage);
if (HASBIT(_cur_grffile->flags, 2)) {
/* GRF has been deactivated... */
CLRBIT(_cur_grffile->flags, 1);
return;
}
continue;
} else {
FioSkipBytes(num);