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(svn r11003) -Codechange: replace Vehicle->next to Vehicle->Next() and Vehicle->SetNext() so we can trap instances that change a next pointer and (in the future) update the first/previous pointers based on that.

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This commit is contained in:
rubidium
2007-08-30 13:03:56 +00:00
parent ac5fde61fb
commit cb7eaff353
21 changed files with 164 additions and 147 deletions
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24
src/newgrf_engine.cpp
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@@ -516,14 +516,14 @@ static uint32 VehicleGetVariable(const ResolverObject *object, byte variable, by
byte chain_before = 0;
byte chain_after = 0;
for (u = GetFirstVehicleInChain(v); u != v; u = u->next) {
for (u = GetFirstVehicleInChain(v); u != v; u = u->Next()) {
chain_before++;
if (variable == 0x41 && u->engine_type != v->engine_type) chain_before = 0;
}
while (u->next != NULL && (variable == 0x40 || u->next->engine_type == v->engine_type)) {
while (u->Next() != NULL && (variable == 0x40 || u->Next()->engine_type == v->engine_type)) {
chain_after++;
u = u->next;
u = u->Next();
}
return chain_before | chain_after << 8 | (chain_before + chain_after + (variable == 0x41)) << 16;
@@ -544,7 +544,7 @@ static uint32 VehicleGetVariable(const ResolverObject *object, byte variable, by
memset(common_cargos, 0, sizeof(common_cargos));
memset(common_subtypes, 0, sizeof(common_subtypes));
for (u = v; u != NULL; u = u->next) {
for (u = v; u != NULL; u = u->Next()) {
/* Skip empty engines */
if (u->cargo_cap == 0) continue;
@@ -579,7 +579,7 @@ static uint32 VehicleGetVariable(const ResolverObject *object, byte variable, by
if (v->type != VEH_AIRCRAFT) return UINT_MAX;
{
const Vehicle *w = v->next;
const Vehicle *w = v->Next();
uint16 altitude = v->z_pos - w->z_pos; // Aircraft height - shadow height
byte airporttype;
@@ -611,7 +611,7 @@ static uint32 VehicleGetVariable(const ResolverObject *object, byte variable, by
if (v->type != VEH_TRAIN) return 0;
const Vehicle *u_p = GetPrevVehicleInChain(v);
const Vehicle *u_n = v->next;
const Vehicle *u_n = v->Next();
DirDiff f = (u_p == NULL) ? DIRDIFF_SAME : DirDifference(u_p->direction, v->direction);
DirDiff b = (u_n == NULL) ? DIRDIFF_SAME : DirDifference(v->direction, u_n->direction);
DirDiff t = ChangeDirDiff(f, b);
@@ -644,7 +644,7 @@ static uint32 VehicleGetVariable(const ResolverObject *object, byte variable, by
{
uint count = 0;
for (; v != NULL; v = v->next) {
for (; v != NULL; v = v->Next()) {
if (v->engine_type == parameter) count++;
}
return count;
@@ -735,7 +735,7 @@ static uint32 VehicleGetVariable(const ResolverObject *object, byte variable, by
case 0x57: return GB(ClampToI32(v->profit_last_year), 8, 24);
case 0x58: return GB(ClampToI32(v->profit_last_year), 16, 16);
case 0x59: return GB(ClampToI32(v->profit_last_year), 24, 8);
case 0x5A: return v->next == NULL ? INVALID_VEHICLE : v->next->index;
case 0x5A: return v->Next() == NULL ? INVALID_VEHICLE : v->Next()->index;
case 0x5C: return ClampToI32(v->value);
case 0x5D: return GB(ClampToI32(v->value), 8, 24);
case 0x5E: return GB(ClampToI32(v->value), 16, 16);
@@ -914,7 +914,7 @@ SpriteID GetRotorOverrideSprite(EngineID engine, const Vehicle *v, bool info_vie
if (v == NULL) return group->g.result.sprite;
return group->g.result.sprite + (info_view ? 0 : (v->next->next->u.air.state % group->g.result.num_sprites));
return group->g.result.sprite + (info_view ? 0 : (v->Next()->Next()->u.air.state % group->g.result.num_sprites));
}
@@ -1040,7 +1040,7 @@ static void DoTriggerVehicle(Vehicle *v, VehicleTrigger trigger, byte base_rando
/* We now trigger the next vehicle in chain recursively.
* The random bits portions may be different for each
* vehicle in chain. */
if (v->next != NULL) DoTriggerVehicle(v->next, trigger, 0, true);
if (v->Next() != NULL) DoTriggerVehicle(v->Next(), trigger, 0, true);
break;
case VEHICLE_TRIGGER_EMPTY:
@@ -1048,14 +1048,14 @@ static void DoTriggerVehicle(Vehicle *v, VehicleTrigger trigger, byte base_rando
* recursively. The random bits portions must be same
* for each vehicle in chain, so we give them all
* first chained vehicle's portion of random bits. */
if (v->next != NULL) DoTriggerVehicle(v->next, trigger, first ? new_random_bits : base_random_bits, false);
if (v->Next() != NULL) DoTriggerVehicle(v->Next(), trigger, first ? new_random_bits : base_random_bits, false);
break;
case VEHICLE_TRIGGER_ANY_NEW_CARGO:
/* Now pass the trigger recursively to the next vehicle
* in chain. */
assert(!first);
if (v->next != NULL) DoTriggerVehicle(v->next, VEHICLE_TRIGGER_ANY_NEW_CARGO, base_random_bits, false);
if (v->Next() != NULL) DoTriggerVehicle(v->Next(), VEHICLE_TRIGGER_ANY_NEW_CARGO, base_random_bits, false);
break;
}
}