Martin Michelsen
109 lines
4.0 KiB
C++
109 lines
4.0 KiB
C++
#pragma once
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#include <stdint.h>
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#include <memory>
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#include <random>
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#include <string>
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#include "GSLArchive.hh"
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#include "StaticGameData.hh"
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class RareItemSet {
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public:
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struct PackedDrop {
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uint8_t probability;
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uint8_t item_code[3];
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static uint32_t expand_rate(uint8_t pc);
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} __attribute__((packed));
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struct ExpandedDrop {
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uint32_t probability;
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uint8_t item_code[3];
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ExpandedDrop();
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explicit ExpandedDrop(const PackedDrop&);
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};
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struct Table {
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// 0x280 in size; describes one difficulty, section ID, and episode
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// TODO: It looks like this structure can actually vary. In PSOGC, these all
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// appear to be the same size/format, but that's probably not strictly
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// required to be the case.
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/* 0000 */ parray<PackedDrop, 0x65> monster_rares;
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/* 0194 */ parray<uint8_t, 0x1E> box_areas;
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/* 01B2 */ parray<PackedDrop, 0x1E> box_rares;
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/* 022A */ parray<uint8_t, 2> unknown_a1;
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/* 022C */ be_uint32_t monster_rares_offset; // == 0x0000
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/* 0230 */ be_uint32_t box_count; // == 0x1E
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/* 0234 */ be_uint32_t box_areas_offset; // == 0x0194
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/* 0238 */ be_uint32_t box_rares_offset; // == 0x01B2
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/* 023C */ be_uint32_t unused_offset1;
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/* 0240 */ parray<be_uint16_t, 0x10> unknown_a2;
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/* 0260 */ be_uint32_t unknown_a2_offset;
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/* 0264 */ be_uint32_t unknown_a2_count;
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/* 0268 */ be_uint32_t unknown_a3;
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/* 026C */ be_uint32_t unknown_a4;
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/* 0270 */ be_uint32_t offset_table_offset; // == 0x022C
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/* 0274 */ parray<be_uint32_t, 3> unknown_a5;
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/* 0280 */
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std::vector<ExpandedDrop> get_enemy_specs(uint8_t enemy_type) const;
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std::vector<ExpandedDrop> get_box_specs(uint8_t area) const;
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} __attribute__((packed));
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virtual ~RareItemSet() = default;
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virtual std::vector<ExpandedDrop> get_enemy_specs(GameMode mode, Episode episode, uint8_t difficulty, uint8_t secid, uint8_t enemy_type) const = 0;
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virtual std::vector<ExpandedDrop> get_box_specs(GameMode mode, Episode episode, uint8_t difficulty, uint8_t secid, uint8_t area) const = 0;
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protected:
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RareItemSet() = default;
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static uint16_t key_for_params(GameMode mode, Episode episode, uint8_t difficulty, uint8_t secid);
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};
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class GSLRareItemSet : public RareItemSet {
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public:
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GSLRareItemSet(std::shared_ptr<const std::string> data, bool is_big_endian);
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virtual ~GSLRareItemSet() = default;
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virtual std::vector<ExpandedDrop> get_enemy_specs(GameMode mode, Episode episode, uint8_t difficulty, uint8_t secid, uint8_t enemy_type) const;
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virtual std::vector<ExpandedDrop> get_box_specs(GameMode mode, Episode episode, uint8_t difficulty, uint8_t secid, uint8_t area) const;
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private:
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std::unordered_map<uint16_t, const Table*> tables;
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GSLArchive gsl;
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};
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class RELRareItemSet : public RareItemSet {
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public:
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RELRareItemSet(std::shared_ptr<const std::string> data);
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virtual ~RELRareItemSet() = default;
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virtual std::vector<ExpandedDrop> get_enemy_specs(GameMode mode, Episode episode, uint8_t difficulty, uint8_t secid, uint8_t enemy_type) const;
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virtual std::vector<ExpandedDrop> get_box_specs(GameMode mode, Episode episode, uint8_t difficulty, uint8_t secid, uint8_t area) const;
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private:
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std::shared_ptr<const std::string> data;
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const Table& get_table(GameMode mode, Episode episode, uint8_t difficulty, uint8_t secid) const;
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};
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class JSONRareItemSet : public RareItemSet {
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public:
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JSONRareItemSet(std::shared_ptr<const JSONObject> json);
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virtual ~JSONRareItemSet() = default;
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virtual std::vector<ExpandedDrop> get_enemy_specs(GameMode mode, Episode episode, uint8_t difficulty, uint8_t secid, uint8_t enemy_type) const;
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virtual std::vector<ExpandedDrop> get_box_specs(GameMode mode, Episode episode, uint8_t difficulty, uint8_t secid, uint8_t area) const;
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private:
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struct SpecCollection {
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std::vector<std::vector<ExpandedDrop>> enemy_type_to_specs;
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std::vector<std::vector<ExpandedDrop>> box_area_to_specs;
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};
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std::unordered_map<uint16_t, SpecCollection> collections;
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};
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