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#include "stdafx.h"
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#include <stdarg.h>
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#include "ttd.h"
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#include "gfx.h"
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#include "fileio.h"
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#include "engine.h"
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/* TTDPatch extended GRF format codec
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* (c) Petr Baudis 2004 (GPL'd)
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* Contains portions of documentation by TTDPatch team.
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* Thanks especially to Josef Drexler for the documentation as well as a lot
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* of help at #tycoon. Also thanks to Michael Blunck for is GRF files which
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* served as subject to the initial testing of this codec. */
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extern int _skip_sprites;
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static const char *_cur_grffile;
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static int _cur_spriteid;
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typedef void (*SpecialSpriteHandler)(byte *buf, int len);
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static const int _vehshifts[4] = {
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0,
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ROAD_ENGINES_INDEX,
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SHIP_ENGINES_INDEX,
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AIRCRAFT_ENGINES_INDEX,
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};
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enum grfmsg_severity {
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GMS_NOTICE,
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GMS_WARN,
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GMS_ERROR,
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GMS_FATAL,
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};
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static void CDECL grfmsg(enum grfmsg_severity severity, const char *str, ...)
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{
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static const char * const severitystr[4] = { "Notice", "Warning", "Error", "Fatal" };
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va_list va;
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va_start(va, str);
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fprintf(stderr, "[%s][%s] ", _cur_grffile, severitystr[severity]);
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vfprintf(stderr, str, va);
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va_end(va);
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fprintf(stderr, "\n");
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}
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static byte INLINE grf_load_byte(byte **buf) {
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return *(*buf)++;
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}
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static uint16 grf_load_word(byte **buf)
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{
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uint16 val;
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byte *p = *buf;
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val = p[0];
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val |= p[1] << 8;
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*buf = p + 2;
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return val;
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}
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static uint16 grf_load_dword(byte **buf)
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{
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uint32 val;
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byte *p = *buf;
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val = p[0];
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val |= p[1] << 8;
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val |= p[2] << 16;
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val |= p[3] << 24;
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*buf = p + 4;
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return val;
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}
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typedef int (*VCI_Handler)(uint engine, int numinfo, int prop, byte **buf, int len);
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#define foreach_engine for (i = 0; i < numinfo; i++)
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static void dewagonize(int condition, int engine)
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{
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EngineInfo *ei = &_engine_info[engine];
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RailVehicleInfo *rvi = &_rail_vehicle_info[engine];
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if (condition) {
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ei->unk2 &= ~0x80;
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rvi->flags &= ~2;
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} else {
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ei->unk2 |= 0x80;
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rvi->flags |= 2;
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}
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}
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static int RailVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len)
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{
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EngineInfo *ei = &_engine_info[engine];
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RailVehicleInfo *rvi = &_rail_vehicle_info[engine];
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byte *buf = *bufp;
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int i;
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int ret = 0;
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switch (prop) {
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case 0x05:
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{ /* Track type */
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foreach_engine {
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uint8 tracktype = grf_load_byte(&buf);
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ei[i].railtype_climates &= 0xf;
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ei[i].railtype_climates |= tracktype << 4;
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}
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break;
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}
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case 0x08:
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{ /* AI passenger service */
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/* TODO */
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foreach_engine {
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grf_load_byte(&buf);
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}
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ret = 1;
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break;
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}
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case 0x09:
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{ /* Speed */
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foreach_engine {
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uint16 speed = grf_load_word(&buf);
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rvi[i].max_speed = speed;
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dewagonize(speed, engine + i);
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}
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break;
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}
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case 0x0b:
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{ /* Power */
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foreach_engine {
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uint16 power = grf_load_word(&buf);
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rvi[i].power = power;
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dewagonize(power, engine + i);
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}
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break;
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}
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case 0x0d:
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{ /* Running cost factor */
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foreach_engine {
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uint8 runcostfact = grf_load_byte(&buf);
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rvi[i].running_cost_base = runcostfact;
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dewagonize(runcostfact, engine + i);
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}
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break;
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}
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case 0x0e:
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{ /* Running cost base */
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foreach_engine {
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uint32 base = grf_load_dword(&buf);
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switch (base) {
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case 0x4c30:
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rvi[i].engclass = 0;
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break;
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case 0x4c36:
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rvi[i].engclass = 1;
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break;
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case 0x4c3c:
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rvi[i].engclass = 2;
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break;
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}
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dewagonize(base, engine + i);
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}
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break;
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}
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case 0x12:
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{ /* Sprite ID */
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foreach_engine {
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uint8 spriteid = grf_load_byte(&buf);
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if (spriteid == 0xfd && rvi[i].image_index != 0xfd)
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_engine_original_sprites[engine + i] = rvi[i].image_index;
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rvi[i].image_index = spriteid;
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}
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break;
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}
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case 0x13:
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{ /* Dual-headed */
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foreach_engine {
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uint8 dual = grf_load_byte(&buf);
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if (dual) {
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rvi[i].flags |= 1;
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} else {
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rvi[i].flags &= ~1;
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}
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}
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break;
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}
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case 0x14:
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{ /* Cargo capacity */
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foreach_engine {
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uint8 capacity = grf_load_byte(&buf);
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rvi[i].capacity = capacity;
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}
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break;
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}
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case 0x15:
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{ /* Cargo type */
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foreach_engine {
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uint8 ctype = grf_load_byte(&buf);
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rvi[i].cargo_type = ctype;
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}
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break;
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}
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case 0x16:
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{ /* Weight */
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foreach_engine {
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uint8 weight = grf_load_byte(&buf);
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rvi[i].weight = weight;
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}
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break;
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}
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case 0x17:
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{ /* Cost factor */
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foreach_engine {
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uint8 cfactor = grf_load_byte(&buf);
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rvi[i].base_cost = cfactor;
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}
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break;
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}
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case 0x18:
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{ /* AI rank */
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/* TODO: _railveh_score should be merged to _rail_vehicle_info. */
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foreach_engine {
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grf_load_byte(&buf);
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}
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ret = 1;
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break;
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}
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case 0x19:
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{ /* Engine traction type */
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/* TODO: What do the individual numbers mean?
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* XXX: And in what base are they, in fact? --pasky */
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foreach_engine {
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uint8 traction = grf_load_byte(&buf);
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int engclass;
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if (traction <= 0x07)
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engclass = 0;
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else if (traction <= 0x27)
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engclass = 1;
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else if (traction <= 0x31)
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engclass = 2;
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else
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break;
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rvi[i].engclass = engclass;
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}
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break;
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}
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/* TODO */
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/* Fall-through for unimplemented four bytes long properties. */
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case 0x1d: /* Refit cargo */
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foreach_engine {
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grf_load_word(&buf);
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}
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/* Fall-through for unimplemented two bytes long properties. */
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case 0x1b: /* Powered wagons power bonus */
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foreach_engine {
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grf_load_byte(&buf);
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}
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/* Fall-through for unimplemented one byte long properties. */
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case 0x1a: /* Sort order */
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case 0x1c: /* Refit cost */
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case 0x1e: /* Callback */
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case 0x1f: /* Tractive effort */
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case 0x21: /* Shorter tenders */
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case 0x22: /* Visual */
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case 0x23: /* Powered wagons weight bonus */
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/* TODO */
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foreach_engine {
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grf_load_byte(&buf);
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}
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ret = 1;
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break;
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default:
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ret = 1;
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break;
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}
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*bufp = buf;
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return ret;
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}
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static int ShipVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len)
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{
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ShipVehicleInfo *svi = &_ship_vehicle_info[engine];
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byte *buf = *bufp;
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int i;
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int ret = 0;
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//printf("e %x prop %x?\n", engine, prop);
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switch (prop) {
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case 0x08:
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{ /* Sprite ID */
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foreach_engine {
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uint8 spriteid = grf_load_byte(&buf);
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if (spriteid == 0xff)
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spriteid = 0xfd; // ships have different custom id in the GRF file
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// This is currently not used but there's no reason
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// in not having it here for the future.
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if (spriteid == 0xfd
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&& svi[i].image_index != 0xfd)
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_engine_original_sprites[SHIP_ENGINES_INDEX
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+ engine + i]
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= svi[i].image_index;
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svi[i].image_index = spriteid;
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}
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break;
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}
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case 0x09:
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{ /* Refittable */
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foreach_engine {
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uint8 refittable = grf_load_byte(&buf);
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svi[i].refittable = refittable;
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}
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break;
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}
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case 0x0a:
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{ /* Cost factor */
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foreach_engine {
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uint8 cost_factor = grf_load_byte(&buf);
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svi[i].base_cost = cost_factor; // ?? is it base_cost?
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}
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break;
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}
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case 0x0b:
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{ /* Speed */
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foreach_engine {
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uint8 speed = grf_load_byte(&buf);
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svi[i].max_speed = speed; // ?? units
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}
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break;
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}
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case 0x0c:
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{ /* Cargo type */
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foreach_engine {
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uint8 cargo = grf_load_byte(&buf);
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// XXX: Need to consult this with patchman yet.
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#if 0
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// Documentation claims this is already the
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// per-landscape cargo type id, but newships.grf
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// assume otherwise.
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cargo = local_cargo_id_ctype[cargo];
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#endif
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svi[i].cargo_type = cargo;
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}
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break;
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}
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case 0x0d:
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{ /* Cargo capacity */
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foreach_engine {
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uint16 capacity = grf_load_word(&buf);
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svi[i].capacity = capacity;
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}
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break;
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}
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case 0x0f:
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{ /* Running cost factor */
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foreach_engine {
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uint8 runcost = grf_load_byte(&buf);
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svi[i].running_cost = runcost;
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}
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break;
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}
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case 0x10:
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{ /* SFX */
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foreach_engine {
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uint8 sfx = grf_load_byte(&buf);
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svi[i].sfx = sfx;
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}
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break;
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}
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case 0x11:
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{ /* Cargos available for refitting */
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foreach_engine {
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uint32 refit_mask = grf_load_dword(&buf);
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_engine_refit_masks[SHIP_ENGINES_INDEX + engine + i] = refit_mask;
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402 |
}
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403 |
break;
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}
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case 0x12:
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{ /* Callback */
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407 |
/* TODO */
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408 |
ret = 1;
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409 |
break;
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410 |
}
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411 |
default:
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412 |
ret = 1;
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413 |
break;
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414 |
}
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415 |
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416 |
*bufp = buf;
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417 |
return ret;
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418 |
}
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419 |
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420 |
#undef shift_buf
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421 |
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422 |
static void VehicleChangeInfo(byte *buf, int len)
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|
423 |
{
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424 |
byte *bufend = buf + len;
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425 |
int i;
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426 |
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|
427 |
/* <00> <feature> <num-props> <num-info> <id> (<property <new-info>)...
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428 |
*
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429 |
* B feature 0, 1, 2 or 3 for trains, road vehicles, ships or planes
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430 |
* 4 for defining new train station sets
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431 |
* B num-props how many properties to change per vehicle/station
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432 |
* B num-info how many vehicles/stations to change
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433 |
* B id ID of first vehicle/station to change, if num-info is
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434 |
* greater than one, this one and the following
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435 |
* vehicles/stations will be changed
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436 |
* B property what property to change, depends on the feature
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437 |
* V new-info new bytes of info (variable size; depends on properties) */
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438 |
/* TODO: Only trains and ships are supported for now. */
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439 |
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|
440 |
static const VCI_Handler handler[5] = {
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|
441 |
RailVehicleChangeInfo,
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442 |
NULL,
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443 |
ShipVehicleChangeInfo,
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444 |
NULL,
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|
445 |
NULL,
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446 |
};
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|
447 |
|
|
448 |
if (len > 5) {
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|
449 |
uint8 feature = buf[1];
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|
450 |
uint8 numprops = buf[2];
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|
451 |
uint8 numinfo = buf[3];
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|
452 |
byte engine = buf[4];
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|
453 |
EngineInfo *ei;
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454 |
|
|
455 |
if (feature != 0 && feature != 2) {
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|
456 |
grfmsg(GMS_WARN, "VehicleChangeInfo: Unsupported vehicle type %x, skipping.", feature);
|
|
457 |
return;
|
|
458 |
}
|
|
459 |
|
|
460 |
ei = &_engine_info[engine + _vehshifts[feature]];
|
|
461 |
|
|
462 |
buf += 5;
|
|
463 |
|
|
464 |
while (numprops-- && buf < bufend) {
|
|
465 |
uint8 prop = grf_load_byte(&buf);
|
|
466 |
|
|
467 |
switch (prop) {
|
|
468 |
case 0x00: {
|
|
469 |
/* Introduction date */
|
|
470 |
foreach_engine {
|
|
471 |
uint16 date = grf_load_word(&buf);
|
|
472 |
|
|
473 |
ei[i].base_intro = date;
|
|
474 |
}
|
|
475 |
break;
|
|
476 |
}
|
|
477 |
case 0x02: {
|
|
478 |
/* Decay speed */
|
|
479 |
foreach_engine {
|
|
480 |
uint8 decay = grf_load_byte(&buf);
|
|
481 |
|
|
482 |
ei[i].unk2 &= 0x80;
|
|
483 |
ei[i].unk2 |= decay & 0x7f;
|
|
484 |
}
|
|
485 |
break;
|
|
486 |
}
|
|
487 |
case 0x03: {
|
|
488 |
/* Vehicle life */
|
|
489 |
foreach_engine {
|
|
490 |
uint8 life = grf_load_byte(&buf);
|
|
491 |
|
|
492 |
ei[i].lifelength = life;
|
|
493 |
}
|
|
494 |
break;
|
|
495 |
}
|
|
496 |
case 0x04: {
|
|
497 |
/* Model life */
|
|
498 |
foreach_engine {
|
|
499 |
uint8 life = grf_load_byte(&buf);
|
|
500 |
|
|
501 |
ei[i].base_life = life;
|
|
502 |
}
|
|
503 |
break;
|
|
504 |
}
|
|
505 |
case 0x06: {
|
|
506 |
/* Climates available */
|
|
507 |
foreach_engine {
|
|
508 |
uint8 climates = grf_load_byte(&buf);
|
|
509 |
|
|
510 |
ei[i].railtype_climates &= 0xf0;
|
|
511 |
ei[i].railtype_climates |= climates;
|
|
512 |
}
|
|
513 |
break;
|
|
514 |
}
|
|
515 |
case 0x07: {
|
|
516 |
/* Loading speed */
|
|
517 |
/* Hyronymus explained me what does
|
|
518 |
* this mean and insists on having a
|
|
519 |
* credit ;-). --pasky */
|
|
520 |
/* TODO: This needs to be supported by
|
|
521 |
* LoadUnloadVehicle() first. */
|
|
522 |
foreach_engine {
|
|
523 |
grf_load_byte(&buf);
|
|
524 |
}
|
|
525 |
goto ignoring;
|
|
526 |
}
|
|
527 |
default:
|
|
528 |
{
|
|
529 |
if (handler[feature](engine, numinfo, prop, &buf, bufend - buf)) {
|
|
530 |
ignoring:
|
|
531 |
grfmsg(GMS_WARN, "VehicleChangeInfo: Ignoring property %x.", prop);
|
|
532 |
}
|
|
533 |
break;
|
|
534 |
}
|
|
535 |
}
|
|
536 |
}
|
|
537 |
}
|
|
538 |
#undef shift_buf
|
|
539 |
}
|
|
540 |
|
|
541 |
|
|
542 |
/* A sprite superset contains all sprites of a given vehicle (or multiple
|
|
543 |
* vehicles) when carrying given cargo. It consists of several sprite sets.
|
|
544 |
* Superset ids are refered as "cargo id"s by TTDPatch documentation,
|
|
545 |
* contributing to the global confusion.
|
|
546 |
*
|
|
547 |
* A sprite set contains all sprites of a given vehicle carrying given cargo at
|
|
548 |
* a given *stage* - that is usually its load stage. Ie. you can have a
|
|
549 |
* spriteset for an empty wagon, wagon full of coal, half-filled wagon etc.
|
|
550 |
* Each spriteset contains eight sprites (one per direction) or four sprites if
|
|
551 |
* the vehicle is symmetric. */
|
|
552 |
|
|
553 |
static int _spriteset_start;
|
|
554 |
static int _spriteset_numsets;
|
|
555 |
static int _spriteset_numents;
|
|
556 |
static int _spriteset_feature;
|
|
557 |
|
|
558 |
static int _spritesset_count;
|
|
559 |
static struct SpriteSuperSet *_spritesset;
|
|
560 |
|
|
561 |
static void SpriteNewSet(byte *buf, int len)
|
|
562 |
{
|
|
563 |
/* <01> <feature> <num-sets> <num-ent>
|
|
564 |
*
|
|
565 |
* B feature feature to define sprites for
|
|
566 |
* 0, 1, 2, 3: veh-type, 4: train stations
|
|
567 |
* B num-sets number of sprite sets
|
|
568 |
* B num-ent how many entries per sprite set
|
|
569 |
* For vehicles, this is the number of different
|
|
570 |
* vehicle directions in each sprite set
|
|
571 |
* Set num-dirs=8, unless your sprites are symmetric.
|
|
572 |
* In that case, use num-dirs=4.
|
|
573 |
* For stations, must be 12 (hex) for the eighteen
|
|
574 |
* different sprites that make up a station */
|
|
575 |
/* TODO: No stations support. */
|
|
576 |
|
|
577 |
if (len == 4) {
|
|
578 |
uint8 feature = buf[1];
|
|
579 |
|
|
580 |
if (feature == 4) {
|
|
581 |
_spriteset_start = 0;
|
|
582 |
grfmsg(GMS_WARN, "SpriteNewSet: Stations unsupported, skipping.");
|
|
583 |
return;
|
|
584 |
}
|
|
585 |
|
|
586 |
_spriteset_start = _cur_spriteid + 1;
|
|
587 |
_spriteset_numsets = buf[2];
|
|
588 |
_spriteset_numents = buf[3];
|
|
589 |
_spriteset_feature = feature;
|
|
590 |
}
|
|
591 |
}
|
|
592 |
|
|
593 |
static void SpriteNewSuperset(byte *buf, int len)
|
|
594 |
{
|
|
595 |
byte *bufend = buf + len;
|
|
596 |
|
|
597 |
/* <02> <feature> <set-id> <type/num-entries> <feature-specific-data...>
|
|
598 |
*
|
|
599 |
* B feature see action 1
|
|
600 |
* B set-id ID of this particular definition
|
|
601 |
* B type/num-entries
|
|
602 |
* if 80 or greater, this is a randomized or variational
|
|
603 |
* list definition, see below
|
|
604 |
* otherwise it specifies a number of entries, the exact
|
|
605 |
* meaning depends on the feature
|
|
606 |
* V feature-specific-data (huge mess, don't even look it up --pasky) */
|
|
607 |
/* TODO: Only trains supported now. No 0x80-types (ugh). */
|
|
608 |
/* TODO: Also, empty sprites aren't handled for now. Need to investigate
|
|
609 |
* the "opacity" rules for these, that is which sprite to fall back to
|
|
610 |
* when. --pasky */
|
|
611 |
|
|
612 |
if (bufend - buf > 4) {
|
|
613 |
uint8 feature = buf[1];
|
|
614 |
uint8 setid = buf[2];
|
|
615 |
uint8 numloaded = buf[3];
|
|
616 |
uint8 numloading = buf[4];
|
|
617 |
struct SpriteSuperSet *superset;
|
|
618 |
int i;
|
|
619 |
|
|
620 |
if (feature == 4) {
|
|
621 |
grfmsg(GMS_WARN, "SpriteNewSuperset: Stations unsupported, skipping.");
|
|
622 |
return;
|
|
623 |
}
|
|
624 |
|
|
625 |
if (numloaded == 0x81) {
|
|
626 |
// XXX: This is _VERY_ ad hoc just to handle Dm3. And that is
|
|
627 |
// a semi-futile ask because the great Patchman himself says
|
|
628 |
// this is just buggy. It dereferences last (first) byte of
|
|
629 |
// a schedule list pointer of the vehicle and if it's 0xff
|
|
630 |
// it uses superset 01, otherwise it uses superset 00. Now
|
|
631 |
// if _you_ understand _that_... We just assume it is never
|
|
632 |
// 0xff and therefore go for superset 00. --pasky
|
|
633 |
uint8 var = buf[4];
|
|
634 |
//uint8 shiftnum = buf[5];
|
|
635 |
//uint8 andmask = buf[6];
|
|
636 |
uint8 nvar = buf[7];
|
|
637 |
//uint32 val;
|
|
638 |
uint16 def;
|
|
639 |
|
|
640 |
grfmsg(GMS_WARN, "SpriteNewSuperset(0x81): Unsupported variable %x. Using default cid.", var);
|
|
641 |
|
|
642 |
//val = (0xff << shiftnum) & andmask;
|
|
643 |
|
|
644 |
//Go for the default.
|
|
645 |
if (setid >= _spritesset_count) {
|
|
646 |
_spritesset_count = setid + 1;
|
|
647 |
_spritesset = realloc(_spritesset, _spritesset_count * sizeof(struct SpriteSuperSet));
|
|
648 |
}
|
|
649 |
buf += 8 + nvar * 4;
|
|
650 |
def = grf_load_word(&buf);
|
|
651 |
_spritesset[setid] = _spritesset[def];
|
|
652 |
return;
|
|
653 |
|
|
654 |
} else if (numloaded & 0x80) {
|
|
655 |
grfmsg(GMS_WARN, "SpriteNewSuperset(0x%x): Unsupported special superset.", numloaded);
|
|
656 |
return;
|
|
657 |
}
|
|
658 |
|
|
659 |
if (!_spriteset_start) {
|
|
660 |
grfmsg(GMS_WARN, "SpriteNewSuperset: No sprite set to work on! Skipping.");
|
|
661 |
return;
|
|
662 |
}
|
|
663 |
|
|
664 |
if (_spriteset_feature != feature) {
|
|
665 |
grfmsg(GMS_WARN, "SpriteNewSuperset: Superset feature %x doesn't match set feature %x! Skipping.", feature, _spriteset_feature);
|
|
666 |
return;
|
|
667 |
}
|
|
668 |
|
|
669 |
if (setid >= _spritesset_count) {
|
|
670 |
_spritesset_count = setid + 1;
|
|
671 |
_spritesset = realloc(_spritesset, _spritesset_count * sizeof(struct SpriteSuperSet));
|
|
672 |
}
|
|
673 |
superset = &_spritesset[setid];
|
|
674 |
memset(superset, 0, sizeof(struct SpriteSuperSet));
|
|
675 |
superset->sprites_per_set = _spriteset_numents;
|
|
676 |
|
|
677 |
buf += 5;
|
|
678 |
|
|
679 |
for (i = 0; buf < bufend && i < numloaded; i++) {
|
|
680 |
uint16 spriteset_id = grf_load_word(&buf);
|
|
681 |
|
|
682 |
if (_spritesset[setid].loaded_count > 16) {
|
|
683 |
grfmsg(GMS_WARN, "SpriteNewSuperset: More than 16 sprites in superset %x, skipping.", setid);
|
|
684 |
return;
|
|
685 |
}
|
|
686 |
superset->loaded[superset->loaded_count++]
|
|
687 |
= _spriteset_start + spriteset_id * _spriteset_numents;
|
|
688 |
}
|
|
689 |
|
|
690 |
for (i = 0; buf < bufend && i < numloading; i++) {
|
|
691 |
uint16 spriteset_id = grf_load_word(&buf);
|
|
692 |
|
|
693 |
if (_spritesset[setid].loading_count > 16) {
|
|
694 |
grfmsg(GMS_WARN, "SpriteNewSuperset: More than 16 sprites in superset %x, skipping.", setid);
|
|
695 |
return;
|
|
696 |
}
|
|
697 |
superset->loading[superset->loading_count++] = _spriteset_start + spriteset_id * _spriteset_numents;
|
|
698 |
}
|
|
699 |
}
|
|
700 |
}
|
|
701 |
|
|
702 |
static void VehicleMapSpriteSuperset(byte *buf, int len)
|
|
703 |
{
|
|
704 |
byte *bufend = buf + len;
|
|
705 |
/* <03> <feature> <n-id> <ids>... <num-cid> [<cargo-type> <cid>]... <def-cid>
|
|
706 |
*
|
|
707 |
* B feature see action 0
|
|
708 |
* B n-id bits 0-6: how many IDs this definition applies to
|
|
709 |
* bit 7: if set, this is a wagon override definition (see below)
|
|
710 |
* B ids the IDs for which this definition applies
|
|
711 |
* B num-cid number of cargo IDs in this definition
|
|
712 |
* can be zero, in that case the def-cid is used always
|
|
713 |
* B cargo-type type of this cargo type (e.g. mail=2, wood=7, see below)
|
|
714 |
* W cid cargo ID for this type of cargo
|
|
715 |
* W def-cid default cargo ID */
|
|
716 |
/* TODO: Only trains supported now. */
|
|
717 |
/* TODO: Multiple cargo support could be useful even for trains/cars -
|
|
718 |
* cargo id 0xff is used for showing images in the build train list. */
|
|
719 |
|
|
720 |
static byte *last_engines;
|
|
721 |
static int last_engines_count;
|
|
722 |
|
|
723 |
if (bufend - buf > 6) {
|
|
724 |
uint8 feature = buf[1];
|
|
725 |
uint8 idcount = buf[2] & 0x7f;
|
|
726 |
int wagover = buf[2] & 0x80;
|
|
727 |
uint8 cidcount = buf[3 + idcount];
|
|
728 |
int c, i;
|
|
729 |
|
|
730 |
if (feature == 4) {
|
|
731 |
grfmsg(GMS_WARN, "VehicleMapSpriteSuperset: Stations unsupported, skipping.");
|
|
732 |
return;
|
|
733 |
}
|
|
734 |
|
|
735 |
// FIXME: Tropicset contains things like:
|
|
736 |
// 03 00 01 19 01 00 00 00 00 - this is missing one 00 at the end,
|
|
737 |
// what should we exactly do with that? --pasky
|
|
738 |
|
|
739 |
if (!_spriteset_start || !_spritesset) {
|
|
740 |
grfmsg(GMS_WARN, "VehicleMapSpriteSuperset: No sprite set to work on! Skipping.");
|
|
741 |
return;
|
|
742 |
}
|
|
743 |
|
|
744 |
if (!wagover && last_engines_count != idcount) {
|
|
745 |
last_engines = realloc(last_engines, idcount);
|
|
746 |
last_engines_count = idcount;
|
|
747 |
}
|
|
748 |
|
|
749 |
for (i = 0; i < idcount; i++) {
|
|
750 |
uint8 engine = buf[3 + i] + _vehshifts[feature];
|
|
751 |
byte *bp = &buf[4 + idcount];
|
|
752 |
|
|
753 |
for (c = 0; c < cidcount; c++) {
|
|
754 |
uint8 ctype = grf_load_byte(&bp);
|
|
755 |
uint16 supersetid = grf_load_word(&bp);
|
|
756 |
|
|
757 |
if (supersetid >= _spritesset_count) {
|
|
758 |
grfmsg(GMS_WARN, "VehicleMapSpriteSuperset: Spriteset %x out of range %x, skipping.", supersetid, _spritesset_count);
|
|
759 |
return;
|
|
760 |
}
|
|
761 |
|
|
762 |
if (ctype == 0xff)
|
|
763 |
ctype = CID_PURCHASE;
|
|
764 |
|
|
765 |
if (wagover) {
|
|
766 |
// TODO: No multiple cargo types per vehicle yet. --pasky
|
|
767 |
SetWagonOverrideSprites(engine, &_spritesset[supersetid], last_engines, last_engines_count);
|
|
768 |
} else {
|
|
769 |
SetCustomEngineSprites(engine, ctype, &_spritesset[supersetid]);
|
|
770 |
last_engines[i] = engine;
|
|
771 |
}
|
|
772 |
}
|
|
773 |
}
|
|
774 |
|
|
775 |
{
|
|
776 |
byte *bp = buf + 4 + idcount + cidcount * 3;
|
|
777 |
uint16 supersetid = grf_load_word(&bp);
|
|
778 |
|
|
779 |
for (i = 0; i < idcount; i++) {
|
|
780 |
uint8 engine = buf[3 + i] + _vehshifts[feature];
|
|
781 |
|
|
782 |
// Don't tell me you don't love duplicated code!
|
|
783 |
if (supersetid >= _spritesset_count) {
|
|
784 |
grfmsg(GMS_WARN, "VehicleMapSpriteSuperset: Spriteset %x out of range %x, skipping.", supersetid, _spritesset_count);
|
|
785 |
return;
|
|
786 |
}
|
|
787 |
|
|
788 |
if (wagover) {
|
|
789 |
// TODO: No multiple cargo types per vehicle yet. --pasky
|
|
790 |
SetWagonOverrideSprites(engine, &_spritesset[supersetid], last_engines, last_engines_count);
|
|
791 |
} else {
|
|
792 |
SetCustomEngineSprites(engine, CID_DEFAULT, &_spritesset[supersetid]);
|
|
793 |
last_engines[i] = engine;
|
|
794 |
}
|
|
795 |
}
|
|
796 |
}
|
|
797 |
}
|
|
798 |
}
|
|
799 |
|
|
800 |
static void VehicleNewName(byte *buf, int len)
|
|
801 |
{
|
|
802 |
/* <04> <veh-type> <language-id> <num-veh> <offset> <data...>
|
|
803 |
*
|
|
804 |
* B veh-type see action 0
|
|
805 |
* B language-id language ID with bit 7 cleared (see below)
|
|
806 |
* B num-veh number of vehicles which are getting a new name
|
|
807 |
* B offset number of the first vehicle that gets a new name
|
|
808 |
* S data new texts, each of them zero-terminated, after
|
|
809 |
* which the next name begins. */
|
|
810 |
/* TODO: No support for changing non-vehicle text. Perhaps we shouldn't
|
|
811 |
* implement it at all, but it could be useful for some "modpacks"
|
|
812 |
* (completely new scenarios changing all graphics and logically also
|
|
813 |
* factory names etc). We should then also support all languages (by
|
|
814 |
* name), not only the original four ones. --pasky */
|
|
815 |
|
|
816 |
if (len > 5) {
|
|
817 |
uint8 feature = buf[1];
|
|
818 |
uint8 lang = buf[2];
|
|
819 |
uint8 id = buf[4] + _vehshifts[feature];
|
|
820 |
uint8 endid = id + buf[3];
|
|
821 |
|
|
822 |
if (lang & 0x80) {
|
|
823 |
grfmsg(GMS_WARN, "VehicleNewName: No support for changing in-game texts. Skipping.");
|
|
824 |
return;
|
|
825 |
}
|
|
826 |
|
|
827 |
if (!(lang & 3)) {
|
|
828 |
/* XXX: If non-English name, silently skip it. */
|
|
829 |
return;
|
|
830 |
}
|
|
831 |
|
|
832 |
buf += 5, len -= 5;
|
|
833 |
for (; id < endid && len > 0; id++) {
|
|
834 |
int ofs = strlen(buf) + 1;
|
|
835 |
|
|
836 |
if (ofs < 128)
|
|
837 |
SetCustomEngineName(id, buf);
|
|
838 |
buf += ofs, len -= ofs;
|
|
839 |
}
|
|
840 |
}
|
|
841 |
}
|
|
842 |
|
|
843 |
static void GraphicsNew(byte *buf, int len)
|
|
844 |
{
|
|
845 |
/* <05> <graphics-type> <num-sprites> <other data...>
|
|
846 |
*
|
|
847 |
* B graphics-type What set of graphics the sprites define.
|
|
848 |
* B num-sprites How many sprites are in this set?
|
|
849 |
* V other data Graphics type specific data. Currently unused. */
|
|
850 |
/* TODO */
|
|
851 |
}
|
|
852 |
|
|
853 |
static void CfgApply(byte *buf, int len)
|
|
854 |
{
|
|
855 |
/* <06> <param-num> <param-size> <offset> ... <FF>
|
|
856 |
*
|
|
857 |
* B param-num Number of parameter to substitute (First = "zero")
|
|
858 |
* Ignored if that parameter was not specified in newgrf.cfg
|
|
859 |
* B param-size How many bytes to replace. If larger than 4, the
|
|
860 |
* bytes of the following parameter are used. In that
|
|
861 |
* case, nothing is applied unless *all* parameters
|
|
862 |
* were specified.
|
|
863 |
* B offset Offset into data from beginning of next sprite
|
|
864 |
* to place where parameter is to be stored. */
|
|
865 |
/* TODO */
|
|
866 |
}
|
|
867 |
|
|
868 |
static void SkipIf(byte *buf, int len)
|
|
869 |
{
|
|
870 |
/* <07/09> <param-num> <param-size> <condition-type> <value> <num-sprites>
|
|
871 |
*
|
|
872 |
* B param-num
|
|
873 |
* B param-size
|
|
874 |
* B condition-type
|
|
875 |
* V value
|
|
876 |
* B num-sprites */
|
|
877 |
/* TODO: We only support few tests. */
|
|
878 |
/* TODO: More params. More condition types. */
|
|
879 |
|
|
880 |
if (len > 5) {
|
|
881 |
uint8 param = buf[1];
|
|
882 |
uint8 paramsize = buf[2];
|
|
883 |
uint8 condtype = buf[3];
|
|
884 |
uint8 numsprites = buf[4 + paramsize];
|
|
885 |
int val, result;
|
|
886 |
|
|
887 |
if (param == 0x83) {
|
|
888 |
val = _opt.landscape;
|
|
889 |
} else {
|
|
890 |
grfmsg(GMS_WARN, "Unsupported param %x. Ignoring test.", param);
|
|
891 |
return;
|
|
892 |
}
|
|
893 |
|
|
894 |
switch (condtype) {
|
|
895 |
case 2: result = (buf[4] == val);
|
|
896 |
break;
|
|
897 |
case 3: result = (buf[4] != val);
|
|
898 |
break;
|
|
899 |
default:
|
|
900 |
grfmsg(GMS_WARN, "Unsupported test %d. Ignoring.", condtype);
|
|
901 |
return;
|
|
902 |
}
|
|
903 |
|
|
904 |
if (!result)
|
|
905 |
return;
|
|
906 |
|
|
907 |
_skip_sprites = numsprites;
|
|
908 |
if (_skip_sprites == 0) {
|
|
909 |
/* Zero means there are no sprites to skip, so
|
|
910 |
* we use -1 to indicate that all further
|
|
911 |
* sprites should be skipped. */
|
|
912 |
_skip_sprites = -1;
|
|
913 |
}
|
|
914 |
}
|
|
915 |
}
|
|
916 |
|
|
917 |
static void GRFInfo(byte *buf, int len)
|
|
918 |
{
|
|
919 |
/* <08> <version> <grf-id> <name> <info>
|
|
920 |
*
|
|
921 |
* B version newgrf version, currently 06
|
|
922 |
* 4*B grf-id globally unique ID of this .grf file
|
|
923 |
* S name name of this .grf set
|
|
924 |
* S info string describing the set, and e.g. author and copyright */
|
|
925 |
/* TODO: Check version. (We should have own versioning done somehow.) */
|
|
926 |
|
|
927 |
if (len > 8) {
|
|
928 |
uint8 version = buf[1];
|
|
929 |
// this is de facto big endian - grf_load_dword() unsuitable
|
|
930 |
uint32 grfid = buf[2] << 24 | buf[3] << 16 | buf[4] << 8 | buf[5];
|
|
931 |
printf("[%s] Loaded GRFv%d set %08lx - %s:\n%s\n", _cur_grffile, version, grfid, buf+6, buf+6+strlen(buf+6)+1);
|
|
932 |
}
|
|
933 |
}
|
|
934 |
|
|
935 |
static void SpriteReplace(byte *buf, int len)
|
|
936 |
{
|
|
937 |
/* <0A> <num-sets> <set1> [<set2> ...]
|
|
938 |
* <set>: <num-sprites> <first-sprite>
|
|
939 |
*
|
|
940 |
* B num-sets How many sets of sprites to replace.
|
|
941 |
* Each set:
|
|
942 |
* B num-sprites How many sprites are in this set
|
|
943 |
* W first-sprite First sprite number to replace */
|
|
944 |
/* TODO */
|
|
945 |
}
|
|
946 |
|
|
947 |
static void GRFError(byte *buf, int len)
|
|
948 |
{
|
|
949 |
/* <0B> <severity> <language-id> <message-id> [<message...> 00] [<data...>] 00 [<parnum>]
|
|
950 |
*
|
|
951 |
* B severity 00: notice, contine loading grf file
|
|
952 |
* 01: warning, continue loading grf file
|
|
953 |
* 02: error, but continue loading grf file, and attempt
|
|
954 |
* loading grf again when loading or starting next game
|
|
955 |
* 03: error, abort loading and prevent loading again in
|
|
956 |
* the future (only when restarting the patch)
|
|
957 |
* B language-id see action 4, use 1F for built-in error messages
|
|
958 |
* B message-id message to show, see below
|
|
959 |
* S message for custom messages (message-id FF), text of the message
|
|
960 |
* not present for built-in messages.
|
|
961 |
* V data additional data for built-in (or custom) messages
|
|
962 |
* B parnum see action 6, only used with built-in message 03 */
|
|
963 |
/* TODO: For now we just show the message, sometimes incomplete and never translated. */
|
|
964 |
|
|
965 |
static const char * const msgstr[4] = {
|
|
966 |
"Requires at least pseudo-TTDPatch version %s.",
|
|
967 |
"This file is for %s version of TTD.",
|
|
968 |
"Designed to be used with %s.",
|
|
969 |
"Invalid parameter %s.",
|
|
970 |
};
|
|
971 |
|
|
972 |
if (len > 5) {
|
|
973 |
uint8 severity = buf[1];
|
|
974 |
uint8 msgid = buf[3];
|
|
975 |
|
|
976 |
if (msgid == 0xff) {
|
|
977 |
grfmsg(severity, "%s", buf+4);
|
|
978 |
} else {
|
|
979 |
grfmsg(severity, msgstr[msgid], buf+4);
|
|
980 |
}
|
|
981 |
}
|
|
982 |
}
|
|
983 |
|
|
984 |
static void GRFComment(byte *buf, int len)
|
|
985 |
{
|
|
986 |
/* <0C> [<ignored...>]
|
|
987 |
*
|
|
988 |
* V ignored Anything following the 0C is ignored */
|
|
989 |
}
|
|
990 |
|
|
991 |
static void ParamSet(byte *buf, int len)
|
|
992 |
{
|
|
993 |
/* <0D> <target> <operation> <source1> <source2> [<data>]
|
|
994 |
*
|
|
995 |
* B target parameter number where result is stored
|
|
996 |
* B operation operation to perform, see below
|
|
997 |
* B source1 first source operand
|
|
998 |
* B source2 second source operand
|
|
999 |
* D data data to use in the calculation, not necessary
|
|
1000 |
* if both source1 and source2 refer to actual parameters
|
|
1001 |
*
|
|
1002 |
* Operations
|
|
1003 |
* 00 Set parameter equal to source1
|
|
1004 |
* 01 Addition, source1 + source2
|
|
1005 |
* 02 Subtraction, source1 - source2
|
|
1006 |
* 03 Unsigned multiplication, source1 * source2 (both unsigned)
|
|
1007 |
* 04 Signed multiplication, source1 * source2 (both signed)
|
|
1008 |
* 05 Unsigned bit shift, source1 by source2 (source2 taken to be a
|
|
1009 |
* signed quantity; left shift if positive and right shift if
|
|
1010 |
* negative, source1 is unsigned)
|
|
1011 |
* 06 Signed bit shift, source1 by source2
|
|
1012 |
* (source2 like in 05, and source1 as well)
|
|
1013 |
*/
|
|
1014 |
/* TODO */
|
|
1015 |
}
|
|
1016 |
|
|
1017 |
static void GRFInhibit(byte *buf, int len)
|
|
1018 |
{
|
|
1019 |
/* <0E> <num> <grfids...>
|
|
1020 |
*
|
|
1021 |
* B num Number of GRFIDs that follow
|
|
1022 |
* D grfids GRFIDs of the files to deactivate */
|
|
1023 |
/* TODO */
|
|
1024 |
}
|
|
1025 |
|
|
1026 |
/* Here we perform initial decoding of some special sprites (as are they
|
|
1027 |
* described at http://www.ttdpatch.net/src/newgrf.txt, but this is only a very
|
|
1028 |
* partial implementation yet; also, we ignore the stages stuff). */
|
|
1029 |
/* XXX: We consider GRF files trusted. It would be trivial to exploit OTTD by
|
|
1030 |
* a crafted invalid GRF file. We should tell that to the user somehow, or
|
|
1031 |
* better make this more robust in the future. */
|
|
1032 |
|
|
1033 |
void DecodeSpecialSprite(const char *filename, int num, int spriteid)
|
|
1034 |
{
|
|
1035 |
#define NUM_ACTIONS 0xf
|
|
1036 |
static const SpecialSpriteHandler handlers[NUM_ACTIONS] = {
|
|
1037 |
/* 0x0 */ VehicleChangeInfo,
|
|
1038 |
/* 0x1 */ SpriteNewSet,
|
|
1039 |
/* 0x2 */ SpriteNewSuperset,
|
|
1040 |
/* 0x3 */ VehicleMapSpriteSuperset,
|
|
1041 |
/* 0x4 */ VehicleNewName,
|
|
1042 |
/* 0x5 */ GraphicsNew,
|
|
1043 |
/* 0x6 */ CfgApply,
|
|
1044 |
/* 0x7 */ SkipIf,
|
|
1045 |
/* 0x8 */ GRFInfo,
|
|
1046 |
/* 0x9 */ SkipIf,
|
|
1047 |
/* 0xa */ SpriteReplace,
|
|
1048 |
/* 0xb */ GRFError,
|
|
1049 |
/* 0xc */ GRFComment,
|
|
1050 |
/* 0xd */ ParamSet,
|
|
1051 |
/* 0xe */ GRFInhibit,
|
|
1052 |
};
|
|
1053 |
byte action;
|
|
1054 |
byte *buf = malloc(num);
|
|
1055 |
int i;
|
|
1056 |
|
|
1057 |
_cur_grffile = filename;
|
|
1058 |
_cur_spriteid = spriteid;
|
|
1059 |
|
|
1060 |
for (i = 0; i != num; i++)
|
|
1061 |
buf[i] = FioReadByte();
|
|
1062 |
|
|
1063 |
action = buf[0];
|
|
1064 |
if (action < NUM_ACTIONS) {
|
|
1065 |
handlers[action](buf, num);
|
|
1066 |
} else {
|
|
1067 |
grfmsg(GMS_WARN, "Unknown special sprite action %x, skipping.", action);
|
|
1068 |
}
|
|
1069 |
|
|
1070 |
free(buf);
|
|
1071 |
#undef NUM_ACTIONS
|
|
1072 |
}
|