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(svn r635) Fix choosing a spritegroup from deterministic variational spritegroups if there is no structure to search (i.e. in purchase lists) (pasky)

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tron
2004-11-15 20:52:11 +00:00
parent 61103119fb
commit b65bda506c
2 changed files with 39 additions and 12 deletions
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24
engine.c
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@@ -255,22 +255,36 @@ ResolveVehicleSpriteGroup(struct SpriteGroup *spritegroup, struct Vehicle *veh)
struct SpriteGroup *target;
int value = -1;
//debug("[%p] Having fun resolving variable %x", dsg->variable);
//debug("[%p] Having fun resolving variable %x", veh, dsg->variable);
if ((dsg->variable >> 6) == 0) {
/* General property */
value = GetDeterministicSpriteValue(dsg->variable);
} else {
/* Station-specific property. */
/* Vehicle-specific property. */
if (veh == NULL) {
/* We are in a purchase list of something,
* and we are checking for something undefined.
* That means we should get the first target
* (NOT the default one). */
if (dsg->num_ranges > 0) {
target = &dsg->ranges[0].group;
} else {
target = dsg->default_group;
}
return ResolveVehicleSpriteGroup(target, NULL);
}
if (dsg->var_scope == VSG_SCOPE_PARENT) {
/* First engine in the vehicle chain */
if (veh != NULL && veh->type == VEH_Train)
if (veh->type == VEH_Train)
veh = GetFirstVehicleInChain(veh);
}
if (dsg->variable == 0x40) {
if (veh && veh->type == VEH_Train) {
if (veh->type == VEH_Train) {
Vehicle *u = GetFirstVehicleInChain(veh);
byte chain_before = 0, chain_after = 0;
@@ -293,7 +307,7 @@ ResolveVehicleSpriteGroup(struct SpriteGroup *spritegroup, struct Vehicle *veh)
// TTDPatch runs on little-endian arch;
// Variable is 0x80 + offset in TTD's vehicle structure
switch (dsg->variable - 0x80) {
#define veh_prop(id_, value_) case id_: if (veh != NULL) value = value_; break /* XXX factorise "if" */
#define veh_prop(id_, value_) case id_: value = value_; break
veh_prop(0x00, veh->type);
veh_prop(0x01, veh->subtype);
veh_prop(0x04, veh->index);