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OpenRCT2/src/openrct2/scripting/bindings/game/ScContext.hpp

488 lines
18 KiB
C++

/*****************************************************************************
* Copyright (c) 2014-2024 OpenRCT2 developers
*
* For a complete list of all authors, please refer to contributors.md
* Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
*
* OpenRCT2 is licensed under the GNU General Public License version 3.
*****************************************************************************/
#pragma once
#ifdef ENABLE_SCRIPTING
# include "../../../OpenRCT2.h"
# include "../../../actions/GameAction.h"
# include "../../../interface/Screenshot.h"
# include "../../../localisation/Formatting.h"
# include "../../../object/ObjectManager.h"
# include "../../../scenario/Scenario.h"
# include "../../Duktape.hpp"
# include "../../HookEngine.h"
# include "../../IconNames.hpp"
# include "../../ScriptEngine.h"
# include "../game/ScConfiguration.hpp"
# include "../game/ScDisposable.hpp"
# include "../object/ScObjectManager.h"
# include "../ride/ScTrackSegment.h"
# include <cstdio>
# include <memory>
namespace OpenRCT2::Scripting
{
class ScContext
{
private:
ScriptExecutionInfo& _execInfo;
HookEngine& _hookEngine;
public:
ScContext(ScriptExecutionInfo& execInfo, HookEngine& hookEngine)
: _execInfo(execInfo)
, _hookEngine(hookEngine)
{
}
private:
int32_t apiVersion_get()
{
return OPENRCT2_PLUGIN_API_VERSION;
}
std::shared_ptr<ScConfiguration> configuration_get()
{
return std::make_shared<ScConfiguration>();
}
std::shared_ptr<ScConfiguration> sharedStorage_get()
{
auto& scriptEngine = GetContext()->GetScriptEngine();
return std::make_shared<ScConfiguration>(ScConfigurationKind::Shared, scriptEngine.GetSharedStorage());
}
std::shared_ptr<ScConfiguration> GetParkStorageForPlugin(std::string_view pluginName)
{
auto& scriptEngine = GetContext()->GetScriptEngine();
auto parkStore = scriptEngine.GetParkStorage();
auto pluginStore = parkStore[pluginName];
// Create if it doesn't exist
if (pluginStore.type() != DukValue::Type::OBJECT)
{
auto* ctx = scriptEngine.GetContext();
parkStore.push();
duk_push_object(ctx);
duk_put_prop_lstring(ctx, -2, pluginName.data(), pluginName.size());
duk_pop(ctx);
pluginStore = parkStore[pluginName];
}
return std::make_shared<ScConfiguration>(ScConfigurationKind::Park, pluginStore);
}
std::shared_ptr<ScConfiguration> getParkStorage(const DukValue& dukPluginName)
{
auto& scriptEngine = GetContext()->GetScriptEngine();
std::shared_ptr<ScConfiguration> result;
if (dukPluginName.type() == DukValue::Type::STRING)
{
auto& pluginName = dukPluginName.as_string();
if (pluginName.empty())
{
duk_error(scriptEngine.GetContext(), DUK_ERR_ERROR, "Plugin name is empty");
}
result = GetParkStorageForPlugin(pluginName);
}
else if (dukPluginName.type() == DukValue::Type::UNDEFINED)
{
auto plugin = _execInfo.GetCurrentPlugin();
if (plugin == nullptr)
{
duk_error(
scriptEngine.GetContext(), DUK_ERR_ERROR, "Plugin name must be specified when used from console.");
}
result = GetParkStorageForPlugin(plugin->GetMetadata().Name);
}
else
{
duk_error(scriptEngine.GetContext(), DUK_ERR_ERROR, "Invalid plugin name.");
}
return result;
}
std::string mode_get()
{
if (gScreenFlags & SCREEN_FLAGS_TITLE_DEMO)
return "title";
else if (gScreenFlags & SCREEN_FLAGS_SCENARIO_EDITOR)
return "scenario_editor";
else if (gScreenFlags & SCREEN_FLAGS_TRACK_DESIGNER)
return "track_designer";
else if (gScreenFlags & SCREEN_FLAGS_TRACK_MANAGER)
return "track_manager";
return "normal";
}
bool paused_get()
{
return GameIsPaused();
}
void paused_set(const bool& value)
{
ThrowIfGameStateNotMutable();
if (value != GameIsPaused())
PauseToggle();
}
void captureImage(const DukValue& options)
{
auto ctx = GetContext()->GetScriptEngine().GetContext();
try
{
CaptureOptions captureOptions;
captureOptions.Filename = fs::u8path(AsOrDefault(options["filename"], ""));
captureOptions.Rotation = options["rotation"].as_uint() & 3;
captureOptions.Zoom = ZoomLevel(options["zoom"].as_uint());
captureOptions.Transparent = AsOrDefault(options["transparent"], false);
auto dukPosition = options["position"];
if (dukPosition.type() == DukValue::Type::OBJECT)
{
CaptureView view;
view.Width = options["width"].as_int();
view.Height = options["height"].as_int();
view.Position.x = dukPosition["x"].as_int();
view.Position.y = dukPosition["y"].as_int();
captureOptions.View = view;
}
CaptureImage(captureOptions);
}
catch (const DukException&)
{
duk_error(ctx, DUK_ERR_ERROR, "Invalid options.");
}
catch (const std::exception& ex)
{
duk_error(ctx, DUK_ERR_ERROR, ex.what());
}
}
DukValue getObject(const std::string& typez, int32_t index) const
{
// deprecated function, moved to ObjectManager.getObject.
ScObjectManager objectManager;
return objectManager.getObject(typez, index);
}
std::vector<DukValue> getAllObjects(const std::string& typez) const
{
// deprecated function, moved to ObjectManager.getAllObjects.
ScObjectManager objectManager;
return objectManager.getAllObjects(typez);
}
DukValue getTrackSegment(track_type_t type)
{
auto ctx = GetContext()->GetScriptEngine().GetContext();
if (type >= TrackElemType::Count)
{
return ToDuk(ctx, nullptr);
}
else
{
return GetObjectAsDukValue(ctx, std::make_shared<ScTrackSegment>(type));
}
}
std::vector<DukValue> getAllTrackSegments()
{
auto ctx = GetContext()->GetScriptEngine().GetContext();
std::vector<DukValue> result;
for (track_type_t type = 0; type < TrackElemType::Count; type++)
{
auto obj = std::make_shared<ScTrackSegment>(type);
if (obj != nullptr)
{
result.push_back(GetObjectAsDukValue(ctx, obj));
}
}
return result;
}
int32_t getRandom(int32_t min, int32_t max)
{
ThrowIfGameStateNotMutable();
if (min >= max)
return min;
int32_t range = max - min;
return min + ScenarioRandMax(range);
}
duk_ret_t formatString(duk_context* ctx)
{
auto nargs = duk_get_top(ctx);
if (nargs >= 1)
{
auto dukFmt = DukValue::copy_from_stack(ctx, 0);
if (dukFmt.type() == DukValue::Type::STRING)
{
FmtString fmt(dukFmt.as_string());
std::vector<FormatArg_t> args;
for (duk_idx_t i = 1; i < nargs; i++)
{
auto dukArg = DukValue::copy_from_stack(ctx, i);
switch (dukArg.type())
{
case DukValue::Type::NUMBER:
args.push_back(dukArg.as_int());
break;
case DukValue::Type::STRING:
args.push_back(dukArg.as_string());
break;
default:
duk_error(ctx, DUK_ERR_ERROR, "Invalid format argument.");
break;
}
}
auto result = FormatStringAny(fmt, args);
duk_push_lstring(ctx, result.c_str(), result.size());
}
else
{
duk_error(ctx, DUK_ERR_ERROR, "Invalid format string.");
}
}
else
{
duk_error(ctx, DUK_ERR_ERROR, "Invalid format string.");
}
return 1;
}
# ifdef _MSC_VER
// HACK workaround to resolve issue #14853
// The exception thrown in duk_error was causing a crash when RAII kicked in for this lambda.
// Only ensuring it was not in the same generated method fixed it.
__declspec(noinline)
# endif
std::shared_ptr<ScDisposable> CreateSubscription(HOOK_TYPE hookType, const DukValue& callback)
{
auto owner = _execInfo.GetCurrentPlugin();
auto cookie = _hookEngine.Subscribe(hookType, owner, callback);
return std::make_shared<ScDisposable>([this, hookType, cookie]() { _hookEngine.Unsubscribe(hookType, cookie); });
}
std::shared_ptr<ScDisposable> subscribe(const std::string& hook, const DukValue& callback)
{
auto& scriptEngine = GetContext()->GetScriptEngine();
auto ctx = scriptEngine.GetContext();
auto hookType = GetHookType(hook);
if (hookType == HOOK_TYPE::UNDEFINED)
{
duk_error(ctx, DUK_ERR_ERROR, "Unknown hook type");
}
if (!callback.is_function())
{
duk_error(ctx, DUK_ERR_ERROR, "Expected function for callback");
}
auto owner = _execInfo.GetCurrentPlugin();
if (owner == nullptr)
{
duk_error(ctx, DUK_ERR_ERROR, "Not in a plugin context");
}
if (!_hookEngine.IsValidHookForPlugin(hookType, *owner))
{
duk_error(ctx, DUK_ERR_ERROR, "Hook type not available for this plugin type.");
}
return CreateSubscription(hookType, callback);
}
void queryAction(const std::string& action, const DukValue& args, const DukValue& callback)
{
QueryOrExecuteAction(action, args, callback, false);
}
void executeAction(const std::string& action, const DukValue& args, const DukValue& callback)
{
QueryOrExecuteAction(action, args, callback, true);
}
void QueryOrExecuteAction(const std::string& actionid, const DukValue& args, const DukValue& callback, bool isExecute)
{
auto& scriptEngine = GetContext()->GetScriptEngine();
auto ctx = scriptEngine.GetContext();
try
{
auto plugin = scriptEngine.GetExecInfo().GetCurrentPlugin();
auto action = scriptEngine.CreateGameAction(actionid, args, plugin->GetMetadata().Name);
if (action != nullptr)
{
if (isExecute)
{
action->SetCallback(
[this, plugin, callback](const GameAction* act, const GameActions::Result* res) -> void {
HandleGameActionResult(plugin, *act, *res, callback);
});
GameActions::Execute(action.get());
}
else
{
auto res = GameActions::Query(action.get());
HandleGameActionResult(plugin, *action, res, callback);
}
}
else
{
duk_error(ctx, DUK_ERR_ERROR, "Unknown action.");
}
}
catch (DukException&)
{
duk_error(ctx, DUK_ERR_ERROR, "Invalid action parameters.");
}
}
void HandleGameActionResult(
const std::shared_ptr<Plugin>& plugin, const GameAction& action, const GameActions::Result& res,
const DukValue& callback)
{
if (callback.is_function())
{
auto& scriptEngine = GetContext()->GetScriptEngine();
auto dukResult = scriptEngine.GameActionResultToDuk(action, res);
// Call the plugin callback and pass the result object
scriptEngine.ExecutePluginCall(plugin, callback, { dukResult }, false);
}
}
void registerAction(const std::string& action, const DukValue& query, const DukValue& execute)
{
auto& scriptEngine = GetContext()->GetScriptEngine();
auto plugin = scriptEngine.GetExecInfo().GetCurrentPlugin();
auto ctx = scriptEngine.GetContext();
if (!query.is_function())
{
duk_error(ctx, DUK_ERR_ERROR, "query was not a function.");
}
else if (!execute.is_function())
{
duk_error(ctx, DUK_ERR_ERROR, "execute was not a function.");
}
else if (!scriptEngine.RegisterCustomAction(plugin, action, query, execute))
{
duk_error(ctx, DUK_ERR_ERROR, "action has already been registered.");
}
}
int32_t SetIntervalOrTimeout(DukValue callback, int32_t delay, bool repeat)
{
auto& scriptEngine = GetContext()->GetScriptEngine();
auto ctx = scriptEngine.GetContext();
auto plugin = scriptEngine.GetExecInfo().GetCurrentPlugin();
int32_t handle = 0;
if (callback.is_function())
{
handle = scriptEngine.AddInterval(plugin, delay, repeat, std::move(callback));
}
else
{
duk_error(ctx, DUK_ERR_ERROR, "callback was not a function.");
}
return handle;
}
void ClearIntervalOrTimeout(int32_t handle)
{
auto& scriptEngine = GetContext()->GetScriptEngine();
auto plugin = scriptEngine.GetExecInfo().GetCurrentPlugin();
scriptEngine.RemoveInterval(plugin, handle);
}
int32_t setInterval(DukValue callback, int32_t delay)
{
return SetIntervalOrTimeout(callback, delay, true);
}
int32_t setTimeout(DukValue callback, int32_t delay)
{
return SetIntervalOrTimeout(callback, delay, false);
}
void clearInterval(int32_t handle)
{
ClearIntervalOrTimeout(handle);
}
void clearTimeout(int32_t handle)
{
ClearIntervalOrTimeout(handle);
}
int32_t getIcon(const std::string& iconName)
{
return GetIconByName(iconName);
}
public:
static void Register(duk_context* ctx)
{
dukglue_register_property(ctx, &ScContext::apiVersion_get, nullptr, "apiVersion");
dukglue_register_property(ctx, &ScContext::configuration_get, nullptr, "configuration");
dukglue_register_property(ctx, &ScContext::sharedStorage_get, nullptr, "sharedStorage");
dukglue_register_method(ctx, &ScContext::getParkStorage, "getParkStorage");
dukglue_register_property(ctx, &ScContext::mode_get, nullptr, "mode");
dukglue_register_property(ctx, &ScContext::paused_get, &ScContext::paused_set, "paused");
dukglue_register_method(ctx, &ScContext::captureImage, "captureImage");
dukglue_register_method(ctx, &ScContext::getObject, "getObject");
dukglue_register_method(ctx, &ScContext::getAllObjects, "getAllObjects");
dukglue_register_method(ctx, &ScContext::getTrackSegment, "getTrackSegment");
dukglue_register_method(ctx, &ScContext::getAllTrackSegments, "getAllTrackSegments");
dukglue_register_method(ctx, &ScContext::getRandom, "getRandom");
dukglue_register_method_varargs(ctx, &ScContext::formatString, "formatString");
dukglue_register_method(ctx, &ScContext::subscribe, "subscribe");
dukglue_register_method(ctx, &ScContext::queryAction, "queryAction");
dukglue_register_method(ctx, &ScContext::executeAction, "executeAction");
dukglue_register_method(ctx, &ScContext::registerAction, "registerAction");
dukglue_register_method(ctx, &ScContext::setInterval, "setInterval");
dukglue_register_method(ctx, &ScContext::setTimeout, "setTimeout");
dukglue_register_method(ctx, &ScContext::clearInterval, "clearInterval");
dukglue_register_method(ctx, &ScContext::clearTimeout, "clearTimeout");
dukglue_register_method(ctx, &ScContext::getIcon, "getIcon");
}
};
uint32_t ImageFromDuk(const DukValue& d)
{
uint32_t img{};
if (d.type() == DukValue::Type::NUMBER)
{
img = d.as_uint();
if (GetTargetAPIVersion() <= API_VERSION_63_G2_REORDER)
{
img = NewIconIndex(d.as_uint());
}
}
else if (d.type() == DukValue::Type::STRING)
{
img = GetIconByName(d.as_c_string());
}
return img;
}
} // namespace OpenRCT2::Scripting
#endif