Add Polaris Chord Support (#361)

## Link to GitHub Issue, if one exists
n/a

## Description of change
Adds support for Polaris Chord

## Testing
Tested with XIF:J:A:A:2024122300. IO/ICCA works, game successfully
connects to server and is playable.

src/spice2x/launcher/launcher.cpp

@@ -61,6 +61,7 @@
 #include "games/ccj/trackball.h"
 #include "games/qks/qks.h"
 #include "games/mfg/mfg.h"
+#include "games/pc/pc.h"
 #include "games/museca/museca.h"
 #include "hooks/avshook.h"
 #include "hooks/audio/audio.h"
@@ -222,6 +223,7 @@ int main_implementation(int argc, char *argv[]) {
     bool attach_ccj = false;
     bool attach_qks = false;
     bool attach_mfg = false;
+    bool attach_pc = false;
     bool attach_museca = false;
     bool show_cursor_if_no_touch = false;
 
@@ -623,6 +625,9 @@ int main_implementation(int argc, char *argv[]) {
     if (options[launcher::Options::LoadMFGModule].value_bool()) {
         attach_mfg = true;
     }
+    if (options[launcher::Options::LoadPCModule].value_bool()) {
+        attach_pc = true;
+    }
     if (options[launcher::Options::LoadMusecaModule].value_bool()) {
         attach_museca = true;
     }
@@ -1101,6 +1106,12 @@ int main_implementation(int argc, char *argv[]) {
     if (options[launcher::Options::MFGNoIO].is_active()) {
         games::mfg::MFG_NO_IO = options[launcher::Options::MFGNoIO].value_bool();
     }
+    if (options[launcher::Options::PCArgs].is_active()) {
+        games::pc::PC_INJECT_ARGS = options[launcher::Options::PCArgs].value_text();
+    }
+    if (options[launcher::Options::PCNoIO].is_active()) {
+        games::pc::PC_NO_IO = options[launcher::Options::PCNoIO].value_bool();
+    }
     if (options[launcher::Options::spice2x_EnableSMXStage].value_bool()) {
         rawinput::ENABLE_SMX_STAGE = true;
     }
@@ -1722,6 +1733,16 @@ int main_implementation(int argc, char *argv[]) {
                 break;
             }
 
+            // Polaris Chord
+            if (check_dll("kamunity.dll") && fileutils::dir_exists("game/svm_Data")) {
+                avs::game::DLL_NAME = "kamunity.dll";
+                attach_io = true;
+                attach_pc = true;
+                launcher::signal::USE_VEH_WORKAROUND = true;
+                show_cursor_if_no_touch = true;
+                break;
+            }
+
             // Busou Shinki: Armored Princess Battle Conductor
             if (check_dll("kamunity.dll") && fileutils::file_exists("game/bsac_app.exe")) {
                 avs::game::DLL_NAME = "kamunity.dll";
@@ -1874,6 +1895,10 @@ int main_implementation(int argc, char *argv[]) {
         avs::core::set_default_heap_size("kamunity.dll");
         games.push_back(new games::mfg::MFGGame());
     }
+    if (attach_pc) {
+        avs::core::HEAP_SIZE = 536870912; // 512MB
+        games.push_back(new games::pc::PCGame());
+    }
 
     // apply user heap size, if defined
     if (user_heap_size > 0) {

src/spice2x/launcher/options.cpp

@@ -1072,6 +1072,15 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .game_name = "Mahjong Fight Girl",
         .category = "Game Options (Advanced)",
     },
+    {
+        // LoadPCModule
+        .title = "Force Load Polaris Chord",
+        .name = "pc",
+        .desc = "manually enable Polaris Chord module",
+        .type = OptionType::Bool,
+        .game_name = "Polaris Chord",
+        .category = "Game Options (Advanced)",
+    },
     {
         // LoadMusecaModule
         .title = "Force Load Museca",
@@ -1794,6 +1803,24 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .game_name = "Mahjong Fight Girl",
         .category = "Game Options (Advanced)"
     },
+    {
+        .title = "PC Arguments Override",
+        .name = "pcargs",
+        .desc = "Command line arguments passed to the game.",
+        .type = OptionType::Text,
+        .setting_name = "",
+        .game_name = "Polaris Chord",
+        .category = "Game Options (Advanced)",
+    },
+    {
+        .title = "PC Disable IO Emulation",
+        .name = "pcnoio",
+        .desc = "Disables BI2X hooks for PC",
+        .type = OptionType::Bool,
+        .setting_name = "",
+        .game_name = "Polaris Chord",
+        .category = "Game Options (Advanced)"
+    },
     {
         // spice2x_LightsOverallBrightness
         .title = "Lights Brightness Adjustment",

src/spice2x/launcher/options.h

@@ -118,6 +118,7 @@ namespace launcher {
             LoadCCJModule,
             LoadQKSModule,
             LoadMFGModule,
+            LoadPCModule,
             LoadMusecaModule,
             PathToModules,
             ScreenshotFolder,
@@ -202,6 +203,8 @@ namespace launcher {
             MFGArgs,
             MFGCabType,
             MFGNoIO,
+            PCArgs,
+            PCNoIO,
             spice2x_LightsOverallBrightness,
             spice2x_WindowBorder,
             spice2x_WindowSize,