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@ -6,6 +6,7 @@
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#include "openttd.h"
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#include "debug.h"
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#include "sprite.h"
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#include "station.h"
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#include "newgrf_station.h"
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static StationClass station_classes[STAT_CLASS_MAX];
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@ -113,3 +114,85 @@ const StationSpec *GetCustomStation(StationClassID sclass, uint station)
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// probably was not loaded.
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return NULL;
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}
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static const RealSpriteGroup *ResolveStationSpriteGroup(const SpriteGroup *spg, const Station *st)
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{
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switch (spg->type) {
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case SGT_REAL:
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return &spg->g.real;
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case SGT_DETERMINISTIC: {
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const DeterministicSpriteGroup *dsg = &spg->g.determ;
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SpriteGroup *target;
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int value = -1;
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if ((dsg->variable >> 6) == 0) {
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/* General property */
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value = GetDeterministicSpriteValue(dsg->variable);
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} else {
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if (st == NULL) {
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/* We are in a build dialog of something,
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* and we are checking for something undefined.
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* That means we should get the first target
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* (NOT the default one). */
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if (dsg->num_ranges > 0) {
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target = dsg->ranges[0].group;
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} else {
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target = dsg->default_group;
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}
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return ResolveStationSpriteGroup(target, NULL);
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}
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/* Station-specific property. */
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if (dsg->var_scope == VSG_SCOPE_PARENT) {
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/* TODO: Town structure. */
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} else /* VSG_SELF */ {
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if (dsg->variable == 0x40 || dsg->variable == 0x41) {
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/* FIXME: This is ad hoc only
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* for waypoints. */
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value = 0x01010000;
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} else {
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/* TODO: Only small fraction done. */
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// TTDPatch runs on little-endian arch;
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// Variable is 0x70 + offset in the TTD's station structure
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switch (dsg->variable - 0x70) {
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case 0x80: value = st->facilities; break;
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case 0x81: value = st->airport_type; break;
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case 0x82: value = st->truck_stops->status; break;
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case 0x83: value = st->bus_stops->status; break;
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case 0x86: value = st->airport_flags & 0xFFFF; break;
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case 0x87: value = st->airport_flags & 0xFF; break;
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case 0x8A: value = st->build_date; break;
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}
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}
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}
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}
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target = value != -1 ? EvalDeterministicSpriteGroup(dsg, value) : dsg->default_group;
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return ResolveStationSpriteGroup(target, st);
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}
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default:
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case SGT_RANDOMIZED:
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DEBUG(grf, 6)("I don't know how to handle random spritegroups yet!");
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return NULL;
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}
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}
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uint32 GetCustomStationRelocation(const StationSpec *spec, const Station *st, byte ctype)
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{
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const RealSpriteGroup *rsg = ResolveStationSpriteGroup(spec->spritegroup[ctype], st);
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if (rsg->sprites_per_set != 0) {
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if (rsg->loading_count != 0) return rsg->loading[0]->g.result.result;
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if (rsg->loaded_count != 0) return rsg->loaded[0]->g.result.result;
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}
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DEBUG(grf, 6)("Custom station 0x%08x::0x%02x has no sprites associated.",
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spec->grfid, spec->localidx);
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/* This is what gets subscribed of dtss->image in newgrf.c,
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* so it's probably kinda "default offset". Try to use it as
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* emergency measure. */
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return 0;
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}
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