From c10b73f30280e5dd758b77e2ef8e5a622ff3c876 Mon Sep 17 00:00:00 2001 From: jbzdarkid Date: Sun, 18 Nov 2018 14:34:34 -0800 Subject: Works, on old version --- Source/ChallengeRandomizer.cpp | 145 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 145 insertions(+) create mode 100644 Source/ChallengeRandomizer.cpp (limited to 'Source/ChallengeRandomizer.cpp') diff --git a/Source/ChallengeRandomizer.cpp b/Source/ChallengeRandomizer.cpp new file mode 100644 index 0000000..b9b54e0 --- /dev/null +++ b/Source/ChallengeRandomizer.cpp @@ -0,0 +1,145 @@ +#include "ChallengeRandomizer.h" +#include + +int find(const std::vector &data, const std::vector& search, size_t startIndex = 0) { + for (size_t i=startIndex; i(i); + } + return -1; +} + +void ChallengeRandomizer::AdjustRng(int offset) { + int currentRng = _memory->ReadData({offset}, 0x1)[0]; + _memory->WriteData({offset}, {currentRng + 0x20}); +} + +ChallengeRandomizer::ChallengeRandomizer(const std::shared_ptr& memory, int seed) : _memory(memory) +{ + int RNG_ADDR = _memory->ReadData({GLOBALS + 0x10}, 1)[0]; + int RNG2_ADDR = _memory->ReadData({GLOBALS + 0x30}, 1)[0]; + _memory->WriteData({GLOBALS + 0x30}, {RNG_ADDR + 4}); + if (RNG2_ADDR == RNG_ADDR + 4) return; // Already applied hack + + int shuffle_integers = -1; + int cut_random_edges = -1; + int get_empty_decoration_slot = -1; + int get_empty_dot_spot = -1; + int add_exactly_this_many_bisection_dots = -1; + int make_a_shaper = -1; + int init_pattern_data_lotus = -1; + int reroll_lotus_eater_stuff = -1; + int do_lotus_minutes = -1; + int do_lotus_eighths = -1; + int do_success_side_effects = -1; + + for (int i=0; i<0x200000; i+=0x1000) { + std::vector data = _memory->ReadData({i}, 0x1100); + std::cout << data.size() << std::endl; + + if (shuffle_integers == -1) { + int index = find(data, {0x48, 0x89, 0x5C, 0x24, 0x10, 0x56, 0x48, 0x83, 0xEC, 0x20, 0x48, 0x63, 0xDA, 0x48, 0x8B, 0xF1, 0x83, 0xFB, 0x01}); + if (index != -1) { + shuffle_integers = i + index; + AdjustRng(shuffle_integers + 0x23); + } + } + if (cut_random_edges == -1) { + int index = find(data, {0x8B, 0x80, 0xBC, 0x03, 0x00, 0x00, 0x89, 0x44, 0x24, 0x3C, 0x33, 0xC0}); + if (index != -1) { + cut_random_edges = i + index - 0x1C; + AdjustRng(cut_random_edges + 0x5D); + } + } + if (get_empty_decoration_slot == -1) { + int index = find(data, {0x57, 0x48, 0x83, 0xEC, 0x20, 0x8B, 0xB9, 0x38, 0x04}); + if (index != -1) { + get_empty_decoration_slot = i + index - 0x5; + AdjustRng(get_empty_decoration_slot + 0x16); + } + } + if (get_empty_dot_spot == -1) { + int index = find(data, {0xF7, 0xF3, 0x85, 0xD2, 0x74, 0xEC}); + if (index != -1) { + get_empty_dot_spot = i + index - 0x2E; + AdjustRng(get_empty_dot_spot + 0x23); + } + } + if (add_exactly_this_many_bisection_dots == -1) { + int index = find(data, {0x48, 0x8B, 0xB4, 0x24, 0xB8, 0x00, 0x00, 0x00, 0x48, 0x8B, 0xBC, 0x24, 0xB0, 0x00, 0x00, 0x00}); + if (index != -1) { + add_exactly_this_many_bisection_dots = i + index - 0x20; + AdjustRng(add_exactly_this_many_bisection_dots + 0x1C); + } + } + if (make_a_shaper == -1) { + int index = find(data, {0xF7, 0xE3, 0xD1, 0xEA, 0x8D, 0x0C, 0x52}); + if (index != -1) { + make_a_shaper = i + index - 0x19; + AdjustRng(make_a_shaper + 0x9); + AdjustRng(make_a_shaper + 0x35); + AdjustRng(make_a_shaper + 0x62); + } + } + if (/*Entity_Machine_Panel::*/init_pattern_data_lotus == -1) { + int index = find(data, {0x40, 0x55, 0x56, 0x48, 0x8D, 0x6C, 0x24, 0xB1}); + if (index != -1) { + init_pattern_data_lotus = i + index; + AdjustRng(init_pattern_data_lotus + 0x433); + AdjustRng(init_pattern_data_lotus + 0x45B); + AdjustRng(init_pattern_data_lotus + 0x5A7); + AdjustRng(init_pattern_data_lotus + 0x5D6); + AdjustRng(init_pattern_data_lotus + 0x6F6); + AdjustRng(init_pattern_data_lotus + 0xD17); + AdjustRng(init_pattern_data_lotus + 0xFDA); + } + } + if (/*Entity_Record_Player::*/reroll_lotus_eater_stuff == -1) { + int index = find(data, {0xB8, 0xAB, 0xAA, 0xAA, 0xAA, 0x41, 0xC1, 0xE8}); + if (index != -1) { + reroll_lotus_eater_stuff = i + index - 0x37; + AdjustRng(reroll_lotus_eater_stuff + 0x24); + AdjustRng(reroll_lotus_eater_stuff + 0x6B); + } + } + // These disable the random locations on timer panels, which would otherwise increment the RNG. + if (do_lotus_minutes == -1) { + int index = find(data, {0x0F, 0xBE, 0x6C, 0x08, 0xFF, 0x45}); + if (index != -1) { + do_lotus_minutes = i + index - 0x2B; + _memory->WriteData({do_lotus_minutes + 0x43B}, {0x31, 0xC0, 0x90, 0x90, 0x90}); // xor eax, eax ;RNG returns 0 + _memory->WriteData({do_lotus_minutes + 0x5B3}, {0x31, 0xC0, 0x90, 0x90, 0x90}); // xor eax, eax ;RNG returns 0 + } + } + if (do_lotus_eighths == -1) { + int index = find(data, {0x75, 0xF5, 0x0F, 0xBE, 0x44, 0x08, 0xFF}); + if (index != -1) { + do_lotus_eighths = i + index - 0x39; + _memory->WriteData({do_lotus_eighths + 0x1E7}, {0x31, 0xC0, 0x90, 0x90, 0x90}); // xor eax, eax ;RNG returns 0 + } + } + // This injection ensures that the seed is set every time the challenge is started. + if (do_success_side_effects == -1) { + int index = find(data, {0x85, 0xC0, 0x7E, 0x2C, 0x48, 0x6B, 0xC8, 0x34}); + if (index != -1) { + do_success_side_effects = i + index; + _memory->WriteData({do_success_side_effects}, { + 0x8B, 0x0D, 0x00, 0x00, 0x00, 0x00, // mov ecx, [] ;This is going to be the address of the custom RNG + 0x67, 0xC7, 0x01, 0x00, 0x00, 0x00, 0x00, // mov dword ptr ds:[ecx], 0x0 ;This is going to be the seed value + 0x48, 0x83, 0xF8, 0x02, // cmp rax, 0x2 ;This is the short solve on the record player (which turns it off) + 0x90, 0x90, 0x90 // nop nop nop + }); + int target = (GLOBALS + 0x30) - (do_success_side_effects + 0x6); // +6 is for the length of the line + _memory->WriteData({do_success_side_effects + 0x2}, {target}); + _memory->WriteData({do_success_side_effects + 0x9}, {seed}); + } + } + } +} -- cgit 1.4.1