Implement date API

src/openrct2/GameState.cpp

@@ -272,8 +272,15 @@ void GameState::UpdateLogic()
     auto& hookEngine = GetContext()->GetScriptEngine().GetHookEngine();
     hookEngine.Call(HOOK_TYPE::INTERVAL_TICK);
 
+    auto day = _date.GetDay();
+
     date_update();
-    _date = Date(gDateMonthTicks, gDateMonthTicks);
+    _date = Date(gDateMonthsElapsed, gDateMonthTicks);
+
+    if (day != _date.GetDay())
+    {
+        hookEngine.Call(HOOK_TYPE::INTERVAL_DAY);
+    }
 
     scenario_update();
     climate_update();

src/openrct2/scripting/Plugin.cpp

@@ -26,7 +26,7 @@ Plugin::Plugin(duk_context* context, const std::string& path)
 
 void Plugin::Load()
 {
-    std::string projectedVariables = "console,context,map,network,park";
+    std::string projectedVariables = "console,context,date,map,network,park";
     if (!gOpenRCT2Headless)
     {
         projectedVariables += ",ui";

src/openrct2/scripting/ScDate.hpp

@@ -0,0 +1,95 @@
+/*****************************************************************************
+ * Copyright (c) 2020 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
+
+#include "../Context.h"
+#include "../Date.h"
+#include "../Game.h"
+#include "../GameState.h"
+#include "../common.h"
+#include "../localisation/Date.h"
+#include "Duktape.hpp"
+
+namespace OpenRCT2::Scripting
+{
+    class ScDate
+    {
+    public:
+        static void Register(duk_context* ctx)
+        {
+            dukglue_register_property(ctx, &monthsElapsed_get, &monthsElapsed_set, "monthsElapsed");
+            dukglue_register_property(ctx, &monthProgress_get, &monthProgress_set, "monthProgress");
+            dukglue_register_property(ctx, &yearsElapsed_get, nullptr, "yearsElapsed");
+            dukglue_register_property(ctx, &ticksElapsed_get, nullptr, "ticksElapsed");
+            dukglue_register_property(ctx, &day_get, nullptr, "day");
+            dukglue_register_property(ctx, &month_get, nullptr, "month");
+            dukglue_register_property(ctx, &year_get, nullptr, "year");
+        }
+
+    private:
+        uint32_t monthsElapsed_get()
+        {
+            const auto& date = GetDate();
+            return date.GetMonthsElapsed();
+        }
+
+        void monthsElapsed_set(uint32_t value)
+        {
+            gDateMonthsElapsed = value;
+        }
+
+        uint32_t monthProgress_get()
+        {
+            const auto& date = GetDate();
+            return date.GetMonthTicks();
+        }
+
+        void monthProgress_set(int32_t value)
+        {
+            gDateMonthTicks = value;
+        }
+
+        uint32_t yearsElapsed_get()
+        {
+            const auto& date = GetDate();
+            return date.GetMonthsElapsed() / 8;
+        }
+
+        uint32_t ticksElapsed_get()
+        {
+            return gCurrentTicks;
+        }
+
+        int32_t day_get()
+        {
+            const auto& date = GetDate();
+            return date.GetDay() + 1;
+        }
+
+        int32_t month_get()
+        {
+            const auto& date = GetDate();
+            return date.GetMonth();
+        }
+
+        int32_t year_get()
+        {
+            const auto& date = GetDate();
+            return date.GetYear() + 1;
+        }
+
+    private:
+        const Date& GetDate()
+        {
+            auto gameState = GetContext()->GetGameState();
+            return gameState->GetDate();
+        }
+    };
+} // namespace OpenRCT2::Scripting

src/openrct2/scripting/ScriptEngine.cpp

@@ -18,6 +18,7 @@
 #include "Duktape.hpp"
 #include "ScConsole.hpp"
 #include "ScContext.hpp"
+#include "ScDate.hpp"
 #include "ScDisposable.hpp"
 #include "ScMap.hpp"
 #include "ScNetwork.hpp"
@@ -62,6 +63,7 @@ void ScriptEngine::Initialise()
     auto ctx = (duk_context*)_context;
     ScConsole::Register(ctx);
     ScContext::Register(ctx);
+    ScDate::Register(ctx);
     ScDisposable::Register(ctx);
     ScMap::Register(ctx);
     ScNetwork::Register(ctx);
@@ -76,6 +78,7 @@ void ScriptEngine::Initialise()
 
     dukglue_register_global(ctx, std::make_shared<ScConsole>(_console), "console");
     dukglue_register_global(ctx, std::make_shared<ScContext>(_execInfo, _hookEngine), "context");
+    dukglue_register_global(ctx, std::make_shared<ScDate>(), "date");
     dukglue_register_global(ctx, std::make_shared<ScMap>(ctx), "map");
     dukglue_register_global(ctx, std::make_shared<ScNetwork>(ctx), "network");
     dukglue_register_global(ctx, std::make_shared<ScPark>(), "park");