mirror of
https://github.com/jugeeya/UltimateTrainingModpack.git
synced 2024-11-28 04:44:06 +00:00
227 lines
8.1 KiB
C
227 lines
8.1 KiB
C
#include <switch.h>
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#include <string.h>
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#include <stdio.h>
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#include <dirent.h>
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#include <sys/iosupport.h>
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#include <sys/reent.h>
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#include <switch/kernel/ipc.h>
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#include "useful.h"
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#include "saltysd_core.h"
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#include "saltysd_ipc.h"
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#include "saltysd_dynamic.h"
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#include "lua/lua.h"
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#include "lua/lstate.h"
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#include "l2c.h"
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#include "saltysd_helper.h"
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u32 __nx_applet_type = AppletType_None;
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static char g_heap[0x8000];
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Handle orig_main_thread;
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void* orig_ctx;
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void* orig_saved_lr;
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// lib::L2CAgent::L2CAgent(L2CAgent*, lua_State *)
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__int64_t (*lib_L2CAgent)(__int64_t*, __int64_t);
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// L2CAgent *__fastcall lib::L2CAgent::push_lua_stack(L2CAgent *result, const lib::L2CValue *a2)
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__int64_t (*lib_L2CAgent_push_lua_stack)(__int64_t, const __int64_t*);
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// pop_lua_stack
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// Notes:
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// Actually takes three arguments, but the third is given through X8 due to how
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// AArch64 treats struct pointers that are used as pass by reference to get the value.
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// Thus, my current solution is to use inline ASM before using this to pass the
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// last arg. This is done using asm("mov x8, %x0" : : "r"(&popped) : "x8" );, where
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// popped is an L2CValue that will be populated by the function.
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// FURTHERMORE, this function does NOT actually pop the stack, it only returns the value at the
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// position indicated by the second argument.
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// This index is either positive, meaning absolute position in the stack, or negative,
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// which is more traditional, i.e. -1 is the top of the stack.
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__int64_t (*lib_L2CAgent_pop_lua_stack)(__int64_t, int);
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// L2CAgent *__fastcall lib::L2CAgent::clear_lua_stack(L2CAgent *result)
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__int64_t (*lib_L2CAgent_clear_lua_stack)(__int64_t);
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// app::sv::animcmd::EFFECT(lua_State* a1)
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__int64_t (*app_sv_animcmd_EFFECT)(__int64_t);
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// app::sv::animcmd::EFFECT_FOLLOW_FLIP_COLOR(lua_State* a1)
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__int64_t (*app_sv_animcmd_EFFECT_FOLLOW_FLIP_COLOR)(__int64_t);
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void __libnx_init(void* ctx, Handle main_thread, void* saved_lr)
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{
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extern char* fake_heap_start;
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extern char* fake_heap_end;
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fake_heap_start = &g_heap[0];
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fake_heap_end = &g_heap[sizeof g_heap];
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orig_ctx = ctx;
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orig_main_thread = main_thread;
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orig_saved_lr = saved_lr;
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// Call constructors.
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void __libc_init_array(void);
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__libc_init_array();
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}
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void __attribute__((weak)) NORETURN __libnx_exit(int rc)
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{
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// Call destructors.
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void __libc_fini_array(void);
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__libc_fini_array();
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SaltySD_printf("SaltySD Plugin: jumping to %p\n", orig_saved_lr);
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__nx_exit(0, orig_saved_lr);
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}
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void _ZN3app10sv_animcmd6ATTACKEP9lua_State_replace(__int64_t a1) {
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// Stretched bones fix: Scale down by ModelModule::scale() with lua_State arg of bone?
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__int64_t v1; // x19
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uint64_t v2; // x9
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uint64_t i; // x8
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// Instantiate our own L2CAgent with the given lua_State
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L2CAgent l2c_agent;
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lib_L2CAgent(&l2c_agent, a1);
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// Getting and replacing a value on the stack. Works!
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/*
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L2CValue damage;
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get_lua_stack(&l2c_agent, 4, &damage);
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L2CValue inject_dmg = {.raw_float = ((float)(damage.raw_float) + 10.0), .type = L2C_number};
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lib_L2CAgent_push_lua_stack(&l2c_agent, &inject_dmg);
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lua_replace((lua_State*) l2c_agent.lua_state_agent, 4);
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*/
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// Get all necessary hitbox params
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L2CValue bone;
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get_lua_stack(&l2c_agent, 3, &bone);
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L2CValue damage;
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get_lua_stack(&l2c_agent, 4, &damage);
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L2CValue angle;
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get_lua_stack(&l2c_agent, 5, &angle);
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L2CValue kbg;
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get_lua_stack(&l2c_agent, 6, &kbg);
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L2CValue wkb;
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get_lua_stack(&l2c_agent, 7, &wkb);
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L2CValue bkb;
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get_lua_stack(&l2c_agent, 8, &bkb);
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L2CValue size;
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get_lua_stack(&l2c_agent, 9, &size);
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L2CValue x;
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get_lua_stack(&l2c_agent, 10, &x);
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L2CValue y;
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get_lua_stack(&l2c_agent, 11, &y);
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L2CValue z;
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get_lua_stack(&l2c_agent, 12, &z);
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L2CValue x2;
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get_lua_stack(&l2c_agent, 13, &x2);
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L2CValue y2;
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get_lua_stack(&l2c_agent, 14, &y2);
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L2CValue z2;
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get_lua_stack(&l2c_agent, 15, &z2);
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v1 = a1;
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u64 attack_code_addr = SaltySDCore_FindSymbol("_ZN3app10sv_animcmd6ATTACKEP9lua_State");
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void (*sub_71019420D0)(__int64_t, __int64_t) = (void (*)(__int64_t, __int64_t))(attack_code_addr + 96);
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sub_71019420D0(*(__int64_t *)(*(__int64_t *)(a1 - 8) + 416LL), a1);
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// EFFECT_FOLLOW_COLOR(Graphic, Bone, Z, Y, X, ZRot, YRot, XRot, Size, unknown=0x1, Red, Green, Blue)
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// FIRST, to test, let's assume single hitbox, not extended, so ignore x2,y2,z2.
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// EFFECT_FOLLOW_FLIP_COLOR(GFXLeft,GFXRight,Bone, Z, Y, X, ZRot, YRot, XRot, Size,Terminate,unknown,R,G,B)
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float sizeMult = 19.0 / 200.0;
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Hash40 shieldEffectHash = {.hash = 0xAFAE75F05LL};
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L2CValue shieldEffect = {.raw = shieldEffectHash.hash, .type = L2C_hash};
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L2CValue xRot = {.raw_float = (float) 0.0, .type = L2C_number};
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L2CValue yRot = {.raw_float = (float) 0.0, .type = L2C_number};
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L2CValue zRot = {.raw_float = (float) 0.0, .type = L2C_number};
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L2CValue unkParam = {.raw = (int) 1, .type = L2C_integer};
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L2CValue unkParam2 = {.raw = (float) 35.0f, .type = L2C_number};
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L2CValue effectSize = {.raw_float = (float) size.raw_float * sizeMult, .type = L2C_number};
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L2CValue red = {.raw_float = (float) 255.0, .type = L2C_number};
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L2CValue green = {.raw_float = (float) 0.0, .type = L2C_number};
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L2CValue blue = {.raw_float = (float) 0.0, .type = L2C_number};
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int num_effects;
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if (x2.type != L2C_void && y2.type != L2C_void && z2.type != L2C_void) {
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num_effects = 4;
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} else {
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x2 = x;
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y2 = y;
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z2 = z;
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num_effects = 1;
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}
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for (int i = 0; i < num_effects; i++) {
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L2CValue currX = {.raw_float = (float) x.raw_float + ((x2.raw_float - x.raw_float) / 3 * i), .type = L2C_number};
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L2CValue currY = {.raw_float = (float) y.raw_float + ((y2.raw_float - y.raw_float) / 3 * i), .type = L2C_number};
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L2CValue currZ = {.raw_float = (float) z.raw_float + ((z2.raw_float - z.raw_float) / 3 * i), .type = L2C_number};
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lib_L2CAgent_clear_lua_stack(&l2c_agent);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &shieldEffect);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &shieldEffect);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &bone);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &currX);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &currY);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &currZ);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &xRot);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &yRot);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &zRot);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &effectSize);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &unkParam);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &unkParam);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &red);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &green);
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lib_L2CAgent_push_lua_stack(&l2c_agent, &blue);
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app_sv_animcmd_EFFECT_FOLLOW_FLIP_COLOR(l2c_agent.lua_state_agent);
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}
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// clear_lua_stack section
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v2 = *(__int64_t *)(v1 + 16);
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for ( i = **(__int64_t **)(v1 + 32) + 16LL; v2 < i; v2 = *(__int64_t *)(v1 + 16) )
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{
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*(__int64_t *)(v1 + 16) = v2 + 16;
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*(__int32_t *)(v2 + 8) = 0;
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}
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*(__int64_t *)(v1 + 16) = i;
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}
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int main(int argc, char *argv[])
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{
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SaltySD_printf("SaltySD Plugin: alive\n");
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// get necessary functions
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lib_L2CAgent = (__int64_t (*)(__int64_t*, __int64_t))(SaltySDCore_FindSymbol("_ZN3lib8L2CAgentC2EP9lua_State"));
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lib_L2CAgent_push_lua_stack = (__int64_t (*)(__int64_t, const __int64_t*))(SaltySDCore_FindSymbol("_ZN3lib8L2CAgent14push_lua_stackERKNS_8L2CValueE"));
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lib_L2CAgent_pop_lua_stack = (__int64_t (*)(__int64_t, int))(SaltySDCore_FindSymbol("_ZN3lib8L2CAgent13pop_lua_stackEi"));
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lib_L2CAgent_clear_lua_stack = (__int64_t (*)(__int64_t))(SaltySDCore_FindSymbol("_ZN3lib8L2CAgent15clear_lua_stackEv"));
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app_sv_animcmd_EFFECT = (__int64_t (*)(__int64_t))(SaltySDCore_FindSymbol("_ZN3app10sv_animcmd6EFFECTEP9lua_State"));
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app_sv_animcmd_EFFECT_FOLLOW_FLIP_COLOR = (__int64_t (*)(__int64_t))(SaltySDCore_FindSymbol("_ZN3app10sv_animcmd24EFFECT_FOLLOW_FLIP_COLOREP9lua_State"));
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char* ver = "Ver. %d.%d.%d";
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u64 dst_3 = SaltySDCore_findCode(ver, strlen(ver));
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if (dst_3) {
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SaltySD_Memcpy(dst_3, "noice v%d%d%d", 13);
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}
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// Install animCMD function replacement
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SaltySD_function_replace_sym("_ZN3app10sv_animcmd6ATTACKEP9lua_State", &_ZN3app10sv_animcmd6ATTACKEP9lua_State_replace);
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__libnx_exit(0);
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}
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