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UltimateTrainingModpack/source/main.c
2019-03-31 20:19:55 -07:00

207 lines
7.6 KiB
C

#include <switch.h>
#include <string.h>
#include <stdio.h>
#include <dirent.h>
#include <sys/iosupport.h>
#include <sys/reent.h>
#include <switch/kernel/ipc.h>
#include "useful.h"
#include "saltysd_core.h"
#include "saltysd_ipc.h"
#include "saltysd_dynamic.h"
#include "lua/lua.h"
#include "lua/lstate.h"
#include "l2c.h"
#include "saltysd_helper.h"
#include "l2c_imports.h"
#include "acmd_imports.h"
u32 __nx_applet_type = AppletType_None;
static char g_heap[0x8000];
Handle orig_main_thread;
void * orig_ctx;
void * orig_saved_lr;
// app::sv::animcmd::EFFECT_FOLLOW_COLOR(lua_State* a1)
__int64_t (* app_sv_animcmd_EFFECT_FOLLOW_COLOR)(__int64_t);
void (* AttackModule_clear_all_orig)(__int64_t);
void __libnx_init(void * ctx, Handle main_thread, void * saved_lr) {
extern char * fake_heap_start;
extern char * fake_heap_end;
fake_heap_start = &g_heap[0];
fake_heap_end = &g_heap[sizeof g_heap];
orig_ctx = ctx;
orig_main_thread = main_thread;
orig_saved_lr = saved_lr;
// Call constructors.
void
__libc_init_array(void);
__libc_init_array();
}
void __attribute__((weak)) NORETURN __libnx_exit(int rc) {
// Call destructors.
void
__libc_fini_array(void);
__libc_fini_array();
SaltySD_printf("SaltySD Plugin: jumping to %p\n", orig_saved_lr);
__nx_exit(0, orig_saved_lr);
}
#define is_training_mode _ZN3app9smashball16is_training_modeEv
extern uint64_t _ZN3app9smashball16is_training_modeEv(void) LINKABLE;
void AttackModule_clear_all_replace(__int64_t attack_module) {
AttackModule_clear_all_orig(attack_module);
__int64_t battle_object_module_accessor = *(__int64_t *) (attack_module + 0x8);
// Clear graphics every time we clear all hitboxes.
__int64_t effect_module = *(__int64_t *) (battle_object_module_accessor + 0x140);
void (* EffectModule_kill_kind)(__int64_t, __int64_t, __int64_t,
__int64_t) =
(void (*)(__int64_t, __int64_t, __int64_t, __int64_t))(*(__int64_t *) (*(__int64_t *) (effect_module) + 0xE0LL));
Hash40 shieldEffectHash = { .hash = 0xAFAE75F05LL };
EffectModule_kill_kind(effect_module, shieldEffectHash.hash, 0, 1);
}
void _ZN3app10sv_animcmd6ATTACKEP9lua_State_replace(__int64_t a1) {
SaltySD_printf("In attack code with lua_state ptr: %llx\n", a1);
__int64_t v1; // x19
uint64_t v2; // x9
uint64_t i; // x8
// Instantiate our own L2CAgent with the given lua_State
L2CAgent l2c_agent;
lib_L2CAgent(&l2c_agent, a1);
// Get all necessary hitbox params
L2CValue bone, damage, angle, kbg, wkb, bkb, size, x, y, z, x2, y2, z2;
get_lua_stack(&l2c_agent, 3, &bone);
get_lua_stack(&l2c_agent, 4, &damage);
get_lua_stack(&l2c_agent, 5, &angle);
get_lua_stack(&l2c_agent, 6, &kbg);
get_lua_stack(&l2c_agent, 7, &wkb);
get_lua_stack(&l2c_agent, 8, &bkb);
get_lua_stack(&l2c_agent, 9, &size);
get_lua_stack(&l2c_agent, 10, &x);
get_lua_stack(&l2c_agent, 11, &y);
get_lua_stack(&l2c_agent, 12, &z);
get_lua_stack(&l2c_agent, 13, &x2);
get_lua_stack(&l2c_agent, 14, &y2);
get_lua_stack(&l2c_agent, 15, &z2);
// original code: parse lua stack and call AttackModule::set_attack()
v1 = a1;
void (* sub_71019420D0)(__int64_t, __int64_t) = (void (*)(__int64_t, __int64_t))(IMPORT(0x71019420D0));
sub_71019420D0(*(__int64_t *) (*(__int64_t *) (a1 - 8) + 416LL), a1);
if (is_training_mode()) {
// Replace AttackModule::clear_all()
__int64_t battle_object_module_accessor = *(__int64_t *) (*(__int64_t *) (a1 - 8) + 416LL);
__int64_t attack_module = *(__int64_t *) (battle_object_module_accessor + 0xA0);
__int64_t attack_module_clear_all = *(__int64_t *) (attack_module) + 0x50LL;
if (AttackModule_clear_all_orig == 0) {
AttackModule_clear_all_orig = (void (*)(__int64_t))(*(__int64_t *) (attack_module_clear_all));
}
*(__int64_t *) (attack_module_clear_all) = AttackModule_clear_all_replace;
// Generate hitbox effect
// EFFECT_FOLLOW_COLOR(Graphic, Bone, Z, Y, X, ZRot, YRot, XRot, Size, unknown=0x1, Red, Green, Blue)
float sizeMult = 19.0 / 200.0;
Hash40 shieldEffectHash = { .hash = 0xAFAE75F05LL };
L2CValue shieldEffect = { .raw = shieldEffectHash.hash, .type = L2C_hash };
L2CValue xRot = { .raw_float = (float) 0.0, .type = L2C_number };
L2CValue yRot = { .raw_float = (float) 0.0, .type = L2C_number };
L2CValue zRot = { .raw_float = (float) 0.0, .type = L2C_number };
L2CValue terminate = { .raw = (int) 1, .type = L2C_integer };
L2CValue unkParam = { .raw = (bool) 1, .type = L2C_bool };
L2CValue effectSize = { .raw_float = (float) size.raw_float * sizeMult, .type = L2C_number };
L2CValue red = { .raw_float = 255.0f, .type = L2C_number };
L2CValue green = { .raw_float = 0.0, .type = L2C_number };
L2CValue blue = { .raw_float = 0.0, .type = L2C_number };
// Extended Hitboxes if x2, y2, z2 are not L2CValue::nil
int num_effects;
if (x2.type != L2C_void && y2.type != L2C_void && z2.type != L2C_void) {
num_effects = 4;
} else {
x2 = x;
y2 = y;
z2 = z;
num_effects = 1;
}
for (int i = 0; i < num_effects; i++) {
L2CValue currX =
{ .raw_float = (float) x.raw_float + ((x2.raw_float - x.raw_float) / 3 * i), .type = L2C_number };
L2CValue currY =
{ .raw_float = (float) y.raw_float + ((y2.raw_float - y.raw_float) / 3 * i), .type = L2C_number };
L2CValue currZ =
{ .raw_float = (float) z.raw_float + ((z2.raw_float - z.raw_float) / 3 * i), .type = L2C_number };
lib_L2CAgent_clear_lua_stack(&l2c_agent);
lib_L2CAgent_push_lua_stack(&l2c_agent, &shieldEffect);
lib_L2CAgent_push_lua_stack(&l2c_agent, &bone);
lib_L2CAgent_push_lua_stack(&l2c_agent, &currX);
lib_L2CAgent_push_lua_stack(&l2c_agent, &currY);
lib_L2CAgent_push_lua_stack(&l2c_agent, &currZ);
lib_L2CAgent_push_lua_stack(&l2c_agent, &xRot);
lib_L2CAgent_push_lua_stack(&l2c_agent, &yRot);
lib_L2CAgent_push_lua_stack(&l2c_agent, &zRot);
lib_L2CAgent_push_lua_stack(&l2c_agent, &effectSize);
lib_L2CAgent_push_lua_stack(&l2c_agent, &terminate);
lib_L2CAgent_push_lua_stack(&l2c_agent, &red);
lib_L2CAgent_push_lua_stack(&l2c_agent, &green);
lib_L2CAgent_push_lua_stack(&l2c_agent, &blue);
app_sv_animcmd_EFFECT_FOLLOW_COLOR(l2c_agent.lua_state_agent);
}
}
// original code: clear_lua_stack section
v2 = *(__int64_t *) (v1 + 16);
for (i = **(__int64_t **) (v1 + 32) + 16LL; v2 < i; v2 = *(__int64_t *) (v1 + 16) ) {
*(__int64_t *) (v1 + 16) = v2 + 16;
*(__int32_t *) (v2 + 8) = 0;
}
*(__int64_t *) (v1 + 16) = i;
} /* _ZN3app10sv_animcmd6ATTACKEP9lua_State_replace */
int main(int argc, char * argv[]) {
SaltySD_printf("SaltySD Plugin: alive\n");
// Get anchor for imports
ANCHOR_ABS = SaltySDCore_getCodeStart();
// Get necessary functions
app_sv_animcmd_EFFECT_FOLLOW_COLOR = (__int64_t (*)(__int64_t))(IMPORT(0x7101955F10));
char * ver = "Ver. %d.%d.%d";
u64 dst_3 = SaltySDCore_findCode(ver, strlen(ver));
if (dst_3) {
SaltySD_Memcpy(dst_3, "Noice v%d%d%d", 13);
}
// Install animCMD function replacement
SaltySD_function_replace_sym("_ZN3app10sv_animcmd6ATTACKEP9lua_State",
&_ZN3app10sv_animcmd6ATTACKEP9lua_State_replace);
__libnx_exit(0);
}