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use GC logic for BB nonrare item drop generation and shops

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This commit is contained in:
Martin Michelsen
2023-03-07 23:16:42 -08:00
parent 6cdbc3e8e0
commit 838e53a91e
36 changed files with 4577 additions and 2270 deletions
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src/RareItemSet.hh
+44 -8
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@@ -7,34 +7,70 @@
#include <random>
#include "StaticGameData.hh"
#include "GSLArchive.hh"
class RareItemSet {
public:
struct Table {
// 0x280 in size; describes one difficulty, section ID, and episode
// TODO: It looks like this structure can actually vary. We see the offsets
// 0194 and 01B2 in the unused section, along with the value 1E (number of
// box rares). In PSOGC, these all appear to be the same size/format, but
// that's probably not strictly required to be the case.
// 0x280 in size; describes one difficulty, section ID, and episode
struct Drop {
uint8_t probability;
uint8_t item_code[3];
} __attribute__((packed));
Drop monster_rares[0x65]; // 0000 - 0194 in file
uint8_t box_areas[0x1E]; // 0194 - 01B2 in file
Drop box_rares[0x1E]; // 01B2 - 022A in file
uint8_t unused[0x56];
/* 0000 */ parray<Drop, 0x65> monster_rares;
/* 0194 */ parray<uint8_t, 0x1E> box_areas;
/* 01B2 */ parray<Drop, 0x1E> box_rares;
/* 022A */ parray<uint8_t, 2> unknown_a1;
/* 022C */ be_uint32_t monster_rares_offset; // == 0x0000
/* 0230 */ be_uint32_t box_count; // == 0x1E
/* 0234 */ be_uint32_t box_areas_offset; // == 0x0194
/* 0238 */ be_uint32_t box_rares_offset; // == 0x01B2
/* 023C */ be_uint32_t unused_offset1;
/* 0240 */ parray<be_uint16_t, 0x10> unknown_a2;
/* 0260 */ be_uint32_t unknown_a2_offset;
/* 0264 */ be_uint32_t unknown_a2_count;
/* 0268 */ be_uint32_t unknown_a3;
/* 026C */ be_uint32_t unknown_a4;
/* 0270 */ be_uint32_t offset_table_offset; // == 0x022C
/* 0274 */ parray<be_uint32_t, 3> unknown_a5;
/* 0280 */
} __attribute__((packed));
RareItemSet(std::shared_ptr<const std::string> data);
virtual ~RareItemSet() = default;
const Table& get_table(Episode episode, uint8_t difficulty, uint8_t secid) const;
virtual const Table& get_table(Episode episode, GameMode mode, uint8_t difficulty, uint8_t secid) const = 0;
static bool sample(std::mt19937& rand, uint8_t probability);
static uint32_t expand_rate(uint8_t pc);
protected:
RareItemSet() = default;
};
class GSLRareItemSet : public RareItemSet {
public:
GSLRareItemSet(std::shared_ptr<const std::string> data, bool is_big_endian);
virtual ~GSLRareItemSet() = default;
virtual const Table& get_table(Episode episode, GameMode mode, uint8_t difficulty, uint8_t secid) const;
private:
GSLArchive gsl;
};
class RELRareItemSet : public RareItemSet {
public:
RELRareItemSet(std::shared_ptr<const std::string> data);
virtual ~RELRareItemSet() = default;
virtual const Table& get_table(Episode episode, GameMode mode, uint8_t difficulty, uint8_t secid) const;
private:
std::shared_ptr<const std::string> data;
const Table* tables;
};