Martin Michelsen
651 lines
18 KiB
C++
651 lines
18 KiB
C++
#include "ItemData.hh"
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#include <array>
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#include <map>
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#include "ItemParameterTable.hh"
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#include "StaticGameData.hh"
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using namespace std;
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ItemData::ItemData() {
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this->clear();
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}
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ItemData::ItemData(const ItemData& other) {
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this->data1d = other.data1d;
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this->id = other.id;
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this->data2d = other.data2d;
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}
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ItemData& ItemData::operator=(const ItemData& other) {
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this->data1d = other.data1d;
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this->id = other.id;
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this->data2d = other.data2d;
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return *this;
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}
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bool ItemData::operator==(const ItemData& other) const {
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return ((this->data1d[0] == other.data1d[0]) &&
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(this->data1d[1] == other.data1d[1]) &&
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(this->data1d[2] == other.data1d[2]) &&
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(this->id == other.id) &&
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(this->data2d == other.data2d));
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}
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bool ItemData::operator!=(const ItemData& other) const {
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return !this->operator==(other);
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}
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void ItemData::clear() {
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this->data1d.clear(0);
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this->id = 0xFFFFFFFF;
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this->data2d = 0;
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}
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bool ItemData::empty() const {
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return (this->data1d[0] == 0) &&
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(this->data1d[1] == 0) &&
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(this->data1d[2] == 0) &&
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(this->data2d == 0);
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}
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uint32_t ItemData::primary_identifier() const {
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// The game treats any item starting with 04 as Meseta, and ignores the rest
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// of data1 (the value is in data2)
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if (this->data1[0] == 0x04) {
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return 0x040000;
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}
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if (this->data1[0] == 0x03 && this->data1[1] == 0x02) {
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return 0x030200; // Tech disk (data1[2] is level, so omit it)
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} else if (this->data1[0] == 0x02) {
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return 0x020000 | (this->data1[1] << 8); // Mag
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} else if (this->is_s_rank_weapon()) {
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return (this->data1[0] << 16) | (this->data1[1] << 8);
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} else {
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return (this->data1[0] << 16) | (this->data1[1] << 8) | this->data1[2];
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}
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}
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bool ItemData::is_wrapped() const {
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switch (this->data1[0]) {
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case 0:
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case 1:
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return this->data1[4] & 0x40;
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case 2:
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return this->data2[2] & 0x40;
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case 3:
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return !this->is_stackable() && (this->data1[3] & 0x40);
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case 4:
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return false;
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default:
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throw runtime_error("invalid item data");
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}
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}
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void ItemData::wrap() {
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switch (this->data1[0]) {
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case 0:
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case 1:
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this->data1[4] |= 0x40;
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break;
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case 2:
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this->data2[2] |= 0x40;
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break;
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case 3:
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if (!this->is_stackable()) {
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this->data1[3] |= 0x40;
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}
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break;
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case 4:
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break;
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default:
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throw runtime_error("invalid item data");
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}
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}
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void ItemData::unwrap() {
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switch (this->data1[0]) {
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case 0:
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case 1:
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this->data1[4] &= 0xBF;
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break;
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case 2:
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this->data2[2] &= 0xBF;
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break;
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case 3:
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if (!this->is_stackable()) {
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this->data1[3] &= 0xBF;
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}
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break;
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case 4:
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break;
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default:
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throw runtime_error("invalid item data");
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}
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}
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bool ItemData::is_stackable() const {
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return this->max_stack_size() > 1;
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}
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size_t ItemData::stack_size() const {
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if (max_stack_size_for_item(this->data1[0], this->data1[1]) > 1) {
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return this->data1[5];
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}
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return 1;
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}
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size_t ItemData::max_stack_size() const {
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return max_stack_size_for_item(this->data1[0], this->data1[1]);
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}
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bool ItemData::is_common_consumable(uint32_t primary_identifier) {
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if (primary_identifier == 0x030200) {
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return false;
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}
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return (primary_identifier >= 0x030000) && (primary_identifier < 0x030A00);
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}
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bool ItemData::is_common_consumable() const {
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return this->is_common_consumable(this->primary_identifier());
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}
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void ItemData::assign_mag_stats(const ItemMagStats& mag) {
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// this->data1[0] and [1] unchanged
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this->data1[2] = mag.level();
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this->data1[3] = mag.photon_blasts;
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this->data1w[2] = mag.def & 0x7FFE;
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this->data1w[3] = mag.pow & 0x7FFE;
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this->data1w[4] = mag.dex & 0x7FFE;
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this->data1w[5] = mag.mind & 0x7FFE;
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// this->id unchanged
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this->data2[0] = mag.synchro;
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this->data2[1] = mag.iq;
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this->data2[2] = mag.flags;
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this->data2[3] = mag.color;
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}
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void ItemData::clear_mag_stats() {
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if (this->data1[0] == 2) {
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this->data1[1] = '\0';
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this->assign_mag_stats(ItemMagStats());
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}
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}
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uint16_t ItemData::compute_mag_level() const {
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return (this->data1w[2] / 100) +
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(this->data1w[3] / 100) +
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(this->data1w[4] / 100) +
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(this->data1w[5] / 100);
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}
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uint16_t ItemData::compute_mag_strength_flags() const {
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uint16_t pow = this->data1w[3] / 100;
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uint16_t dex = this->data1w[4] / 100;
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uint16_t mind = this->data1w[5] / 100;
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uint16_t ret = 0;
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if ((dex < pow) && (mind < pow)) {
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ret = 0x008;
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}
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if ((pow < dex) && (mind < dex)) {
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ret |= 0x010;
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}
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if ((dex < mind) && (pow < mind)) {
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ret |= 0x020;
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}
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uint16_t highest = max<uint16_t>(dex, max<uint16_t>(pow, mind));
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if ((pow == highest) + (dex == highest) + (mind == highest) > 1) {
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ret |= 0x100;
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}
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return ret;
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}
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uint8_t ItemData::mag_photon_blast_for_slot(uint8_t slot) const {
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uint8_t flags = this->data2[2];
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uint8_t pb_nums = this->data1[3];
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if (slot == 0) { // Center
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return (flags & 1) ? (pb_nums & 0x07) : 0xFF;
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} else if (slot == 1) { // Right
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return (flags & 2) ? ((pb_nums & 0x38) >> 3) : 0xFF;
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} else if (slot == 2) { // Left
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if (!(flags & 4)) {
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return 0xFF;
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}
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uint8_t used_pbs[6] = {0, 0, 0, 0, 0, 0};
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used_pbs[pb_nums & 0x07] = '\x01';
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used_pbs[(pb_nums & 0x38) >> 3] = '\x01';
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uint8_t left_pb_num = (pb_nums & 0xC0) >> 6;
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for (size_t z = 0; z < 6; z++) {
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if (!used_pbs[z]) {
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if (!left_pb_num) {
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return z;
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}
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left_pb_num--;
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}
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}
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throw logic_error("failed to find unused photon blast number");
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} else {
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throw logic_error("invalid slot index");
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}
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}
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bool ItemData::mag_has_photon_blast_in_any_slot(uint8_t pb_num) const {
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if (pb_num < 6) {
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for (size_t slot = 0; slot < 3; slot++) {
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if (this->mag_photon_blast_for_slot(slot) == pb_num) {
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return true;
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}
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}
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}
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return false;
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}
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void ItemData::add_mag_photon_blast(uint8_t pb_num) {
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if (pb_num >= 6) {
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return;
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}
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if (this->mag_has_photon_blast_in_any_slot(pb_num)) {
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return;
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}
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uint8_t& flags = this->data2[2];
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uint8_t& pb_nums = this->data1[3];
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if (!(flags & 1)) { // Center
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pb_nums |= pb_num;
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flags |= 1;
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} else if (!(flags & 2)) { // Right
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pb_nums |= (pb_num << 3);
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flags |= 2;
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} else if (!(flags & 4)) {
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uint8_t orig_pb_num = pb_num;
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if (this->mag_photon_blast_for_slot(0) < orig_pb_num) {
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pb_num--;
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}
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if (this->mag_photon_blast_for_slot(1) < orig_pb_num) {
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pb_num--;
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}
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if (pb_num >= 4) {
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throw runtime_error("left photon blast number is too high");
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pb_nums |= (pb_num << 6);
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}
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flags |= 4;
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}
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}
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void ItemData::decode_for_version(GameVersion from_version) {
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bool is_v2 = (from_version == GameVersion::DC) || (from_version == GameVersion::PC);
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uint8_t encoded_v2_data = this->get_encoded_v2_data();
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bool should_decode_v2_data = is_v2 && (encoded_v2_data != 0x00) && this->has_encoded_v2_data();
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switch (this->data1[0]) {
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case 0x00:
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if (should_decode_v2_data) {
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this->data1[5] = ((encoded_v2_data < 0x89) || (this->data1[1] == 0x0F)) ? 0x00 : this->data1[1];
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this->data1[1] = encoded_v2_data;
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}
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break;
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case 0x01:
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if (should_decode_v2_data) {
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this->data1[3] = 0x00;
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this->data1[2] = encoded_v2_data;
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}
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break;
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case 0x02:
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if (should_decode_v2_data) {
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this->data1[2] = 0xC8;
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this->data1[1] = encoded_v2_data + 0x2B;
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}
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if (from_version == GameVersion::GC) {
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// PSO GC erroneously byteswaps the data2d field, even though it's actually
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// just four individual bytes, so we correct for that here.
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this->data2d = bswap32(this->data2d);
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} else if (from_version == GameVersion::DC || from_version == GameVersion::PC) {
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// PSO PC encodes mags in a tediously annoying manner. The first four bytes are the same, but then...
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// V2: pHHHHHHHHHHHHHHc pIIIIIIIIIIIIIIc JJJJJJJJJJJJJJJc KKKKKKKKKKKKKKKc QQQQQQQQ QQQQQQQQ YYYYYYYY pYYYYYYY
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// V3: HHHHHHHHHHHHHHHH IIIIIIIIIIIIIIII JJJJJJJJJJJJJJJJ KKKKKKKKKKKKKKKK YYYYYYYY QQQQQQQQ PPPPPPPP CCCCCCCC
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// c = color in V2 (4 bits; low bit first)
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// C = color in V3
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// p = PB flag bits in V2 (3 bits; ordered 1, 2, 0)
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// P = PB flag bits in V3
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// H, I, J, K = DEF, POW, DEX, MIND
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// Q = IQ (little-endian in V2)
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// Y = synchro (little-endian in V2)
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// Order is important; data2[0] must not be written before data2w[0] is read
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this->data2[1] = this->data2w[0]; // IQ
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this->data2[0] = this->data2w[1] & 0x7FFF; // Synchro
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this->data2[2] = ((this->data2[3] >> 7) & 1) | ((this->data1w[2] >> 14) & 2) | ((this->data1w[3] >> 13) & 4); // PB flags
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this->data2[3] = (this->data1w[2] & 1) | ((this->data1w[3] & 1) << 1) | ((this->data1w[4] & 1) << 2) | ((this->data1w[5] & 1) << 3); // Color
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this->data1w[2] &= 0x7FFE;
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this->data1w[3] &= 0x7FFE;
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this->data1w[4] &= 0xFFFE;
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this->data1w[5] &= 0xFFFE;
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}
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break;
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case 0x03:
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if (should_decode_v2_data) {
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this->data1[3] = 0x00;
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if (this->data1[1] == 0x02) {
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this->data1[2] = encoded_v2_data + 0x0E;
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} else if (this->data1[1] == 0x0D) {
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if (this->data1[2] == 0x06) {
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this->data1[1] = 0x0E;
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this->data1[2] = encoded_v2_data + -1;
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} else if (this->data1[2] == 0x07) {
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this->data1[1] = this->data1[6];
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this->data1[2] = encoded_v2_data + -1;
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this->data1[6] = 0x00;
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}
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}
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}
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break;
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case 0x04:
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break;
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default:
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throw runtime_error("invalid item class");
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}
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}
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void ItemData::encode_for_version(GameVersion to_version, shared_ptr<const ItemParameterTable> item_parameter_table) {
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bool is_v2 = (to_version == GameVersion::DC) || (to_version == GameVersion::PC);
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bool should_encode_v2_data = is_v2 && !this->has_encoded_v2_data();
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switch (this->data1[0]) {
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case 0x00:
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if (should_encode_v2_data && (this->data1[1] > 0x26)) {
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if (this->data1[1] < 0x89) {
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this->data1[5] = this->data1[1];
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this->data1[1] = item_parameter_table->get_weapon_v1_replacement(this->data1[1]);
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if (this->data1[1] == 0x00) {
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this->data1[1] = 0x0F;
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}
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} else {
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uint8_t data1_5 = this->data1[5];
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if (this->data1[1] > data1_5) {
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this->data1[5] = this->data1[1];
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this->data1[1] = (data1_5 != 0) ? data1_5 : 0x0F;
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}
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}
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}
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break;
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case 0x01: {
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static const array<uint8_t, 4> armor_limits = {0x00, 0x29, 0x27, 0x44};
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if (should_encode_v2_data && (this->data1[2] >= armor_limits[this->data1[1]])) {
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this->data1[3] = this->data1[2];
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this->data1[2] = 0x00;
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}
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break;
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}
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case 0x02:
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if (should_encode_v2_data && (this->data1[1] > 0x2B)) {
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this->data1[2] = this->data1[1] - 0x2B - 0x38;
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this->data1[1] = 0x00;
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}
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// This logic is the inverse of the corresponding logic in
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// decode_for_version; see that function for a description of what's
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// going on here.
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if (to_version == GameVersion::GC) {
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this->data2d = bswap32(this->data2d);
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} else if (to_version == GameVersion::DC || to_version == GameVersion::PC) {
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this->data1w[2] = (this->data1w[2] & 0x7FFE) | ((this->data2[2] << 14) & 0x8000) | (this->data2[3] & 1);
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this->data1w[3] = (this->data1w[3] & 0x7FFE) | ((this->data2[2] << 13) & 0x8000) | ((this->data2[3] >> 1) & 1);
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this->data1w[4] = (this->data1w[4] & 0xFFFE) | ((this->data2[3] >> 2) & 1);
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this->data1w[5] = (this->data1w[5] & 0xFFFE) | ((this->data2[3] >> 3) & 1);
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// Order is important; data2w[0] must not be written before data2[0] is read
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this->data2w[1] = this->data2[0] | ((this->data2[2] << 15) & 0x8000);
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this->data2w[0] = this->data2[1];
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}
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break;
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case 0x03:
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if (should_encode_v2_data) {
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if (this->data1[1] == 2) {
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if (this->data1[2] > 0x0E) {
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this->data1[3] = this->data1[2] - 0x0E;
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this->data1[2] %= 0x0F;
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}
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} else if (this->data1[1] == 0x0E) {
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this->data1[3] = this->data1[2] + 1;
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this->data1[1] = 0x0D;
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this->data1[2] = 0x06;
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} else if (this->data1[1] > 0x0E) {
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this->data1[6] = this->data1[1];
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this->data1[3] = this->data1[2] + 0x01;
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this->data1[1] = 0x0D;
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this->data1[2] = 0x07;
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}
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}
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break;
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case 0x04:
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break;
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default:
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throw runtime_error("invalid item class");
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}
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}
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uint8_t ItemData::get_encoded_v2_data() const {
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switch (this->data1[0]) {
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case 0x00:
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return this->data1[5];
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case 0x01:
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case 0x03:
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return this->data1[3];
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case 0x02:
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if (this->data1[2] > 0xC8) {
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return this->data1[2] + 0x38;
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}
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return 0x00;
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default:
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return 0x00;
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}
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}
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bool ItemData::has_encoded_v2_data() const {
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return (this->data1[0] == 0)
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? (this->data1[1] < this->get_encoded_v2_data())
|
|
: (this->get_encoded_v2_data() != 0);
|
|
}
|
|
|
|
uint16_t ItemData::get_sealed_item_kill_count() const {
|
|
return ((this->data1[10] << 8) | this->data1[11]) & 0x7FFF;
|
|
}
|
|
|
|
void ItemData::set_sealed_item_kill_count(uint16_t v) {
|
|
if (v > 0x7FFF) {
|
|
this->data1w[5] = 0xFFFF;
|
|
} else {
|
|
this->data1[10] = (v >> 8) | 0x80;
|
|
this->data1[11] = v;
|
|
}
|
|
}
|
|
|
|
uint8_t ItemData::get_tool_item_amount() const {
|
|
return this->is_stackable() ? this->data1[5] : 1;
|
|
}
|
|
|
|
void ItemData::set_tool_item_amount(uint8_t amount) {
|
|
if (this->is_stackable()) {
|
|
this->data1[5] = amount;
|
|
} else if (this->data1[0] == 0x03) {
|
|
this->data1[5] = 0x00;
|
|
}
|
|
}
|
|
|
|
int16_t ItemData::get_armor_or_shield_defense_bonus() const {
|
|
return this->data1w[3];
|
|
}
|
|
|
|
void ItemData::set_armor_or_shield_defense_bonus(int16_t bonus) {
|
|
this->data1w[3] = bonus;
|
|
}
|
|
|
|
int16_t ItemData::get_common_armor_evasion_bonus() const {
|
|
return this->data1w[4];
|
|
}
|
|
|
|
void ItemData::set_common_armor_evasion_bonus(int16_t bonus) {
|
|
this->data1w[4] = bonus;
|
|
}
|
|
|
|
int16_t ItemData::get_unit_bonus() const {
|
|
return this->data1w[3];
|
|
}
|
|
|
|
void ItemData::set_unit_bonus(int16_t bonus) {
|
|
this->data1w[3] = bonus;
|
|
}
|
|
|
|
bool ItemData::has_bonuses() const {
|
|
switch (this->data1[0]) {
|
|
case 0:
|
|
for (size_t z = 6; z <= 10; z += 2) {
|
|
if (this->data1[z] != 0) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
case 1:
|
|
switch (this->data1[1]) {
|
|
case 1:
|
|
if (this->data1[5] != 0) {
|
|
return true;
|
|
}
|
|
[[fallthrough]];
|
|
case 2:
|
|
return ((this->get_armor_or_shield_defense_bonus() > 0) ||
|
|
(this->get_common_armor_evasion_bonus() > 0));
|
|
case 3:
|
|
return (this->get_unit_bonus() > 0);
|
|
default:
|
|
throw runtime_error("invalid item");
|
|
}
|
|
case 2:
|
|
if (this->data1[1] < 0x23) {
|
|
return ((this->data1[1] == 0x1D) || (this->data1[1] == 0x22));
|
|
} else {
|
|
return (this->data1[1] == 0x27);
|
|
}
|
|
case 3:
|
|
case 4:
|
|
return false;
|
|
default:
|
|
throw runtime_error("invalid item");
|
|
}
|
|
}
|
|
|
|
bool ItemData::is_s_rank_weapon() const {
|
|
if (this->data1[0] == 0) {
|
|
if ((this->data1[1] > 0x6F) && (this->data1[1] < 0x89)) {
|
|
return true;
|
|
}
|
|
if ((this->data1[1] > 0xA4) && (this->data1[1] < 0xAA)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
EquipSlot ItemData::default_equip_slot() const {
|
|
switch (this->data1[0]) {
|
|
case 0x00:
|
|
return EquipSlot::WEAPON;
|
|
case 0x01:
|
|
switch (this->data1[1]) {
|
|
case 0x01:
|
|
return EquipSlot::ARMOR;
|
|
case 0x02:
|
|
return EquipSlot::SHIELD;
|
|
case 0x03:
|
|
return EquipSlot::UNIT_1;
|
|
}
|
|
break;
|
|
case 0x02:
|
|
return EquipSlot::MAG;
|
|
}
|
|
throw runtime_error("item cannot be equipped");
|
|
}
|
|
|
|
bool ItemData::can_be_equipped_in_slot(EquipSlot slot) const {
|
|
switch (slot) {
|
|
case EquipSlot::MAG:
|
|
return (this->data1[0] == 0x02);
|
|
case EquipSlot::ARMOR:
|
|
return ((this->data1[0] == 0x01) && (this->data1[1] == 0x01));
|
|
case EquipSlot::SHIELD:
|
|
return ((this->data1[0] == 0x01) && (this->data1[1] == 0x02));
|
|
case EquipSlot::UNIT_1:
|
|
case EquipSlot::UNIT_2:
|
|
case EquipSlot::UNIT_3:
|
|
case EquipSlot::UNIT_4:
|
|
return ((this->data1[0] == 0x01) && (this->data1[1] == 0x03));
|
|
case EquipSlot::WEAPON:
|
|
return (this->data1[0] == 0x00);
|
|
default:
|
|
throw runtime_error("invalid equip slot");
|
|
}
|
|
}
|
|
|
|
bool ItemData::compare_for_sort(const ItemData& a, const ItemData& b) {
|
|
for (size_t z = 0; z < 12; z++) {
|
|
if (a.data1[z] < b.data1[z]) {
|
|
return true;
|
|
} else if (a.data1[z] > b.data1[z]) {
|
|
return false;
|
|
}
|
|
}
|
|
for (size_t z = 0; z < 4; z++) {
|
|
if (a.data2[z] < b.data2[z]) {
|
|
return true;
|
|
} else if (a.data2[z] > b.data2[z]) {
|
|
return false;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
ItemData ItemData::from_data(const string& data) {
|
|
if (data.size() > 0x10) {
|
|
throw runtime_error("data is too long");
|
|
}
|
|
|
|
ItemData ret;
|
|
for (size_t z = 0; z < min<size_t>(data.size(), 12); z++) {
|
|
ret.data1[z] = data[z];
|
|
}
|
|
for (size_t z = 12; z < min<size_t>(data.size(), 16); z++) {
|
|
ret.data2[z - 12] = data[z];
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
string ItemData::hex() const {
|
|
return string_printf("%02hhX%02hhX%02hhX%02hhX %02hhX%02hhX%02hhX%02hhX %02hhX%02hhX%02hhX%02hhX (%08" PRIX32 ") %02hhX%02hhX%02hhX%02hhX",
|
|
this->data1[0], this->data1[1], this->data1[2], this->data1[3],
|
|
this->data1[4], this->data1[5], this->data1[6], this->data1[7],
|
|
this->data1[8], this->data1[9], this->data1[10], this->data1[11],
|
|
this->id.load(),
|
|
this->data2[0], this->data2[1], this->data2[2], this->data2[3]);
|
|
}
|