Add weather 'forecast' as preview

data/language/en-GB.txt

@@ -3802,3 +3802,4 @@ STR_6740    :{WINDOW_COLOUR_2}Cash: {BLACK}{CURRENCY2DP}
 STR_6741    :{WINDOW_COLOUR_2}Num. rides: {BLACK}{UINT16}
 STR_6742    :{WINDOW_COLOUR_2}Num. guests: {BLACK}{UINT16}
 STR_6743    :Climate
+STR_6744    :{WINDOW_COLOUR_2}{UINT16}%

src/openrct2-ui/windows/EditorObjectSelection.cpp

@@ -28,6 +28,7 @@
 #include <openrct2/core/String.hpp>
 #include <openrct2/drawing/Text.h>
 #include <openrct2/localisation/Formatter.h>
+#include <openrct2/object/ClimateObject.h>
 #include <openrct2/object/MusicObject.h>
 #include <openrct2/object/ObjectList.h>
 #include <openrct2/object/ObjectManager.h>
@@ -1268,6 +1269,7 @@ namespace OpenRCT2::Ui::Windows
                 screenPos.y += DrawTextWrapped(dpi, screenPos, descriptionWidth, STR_WINDOW_COLOUR_2_STRINGID, ft);
                 screenPos.y += kListRowHeight;
             }
+
             if (GetSelectedObjectType() == ObjectType::ride)
             {
                 auto* rideObject = reinterpret_cast<RideObject*>(_loadedObject.get());

src/openrct2/localisation/StringIds.h

@@ -1725,6 +1725,7 @@ enum : StringId
     STR_DIVE_LOOP_RIGHT = 6728,
 
     STR_OBJECT_SELECTION_CLIMATE = 6743,
+    STR_CLIMATE_WEATHER_PERCENT = 6744,
 
     // Have to include resource strings (from scenarios and objects) for the time being now that language is partially working
     /* MAX_STR_COUNT = 32768 */ // MAX_STR_COUNT - upper limit for number of strings, not the current count strings

src/openrct2/object/ClimateObject.cpp

@@ -13,6 +13,10 @@
 #include "../core/Guard.hpp"
 #include "../core/IStream.hpp"
 #include "../core/Json.hpp"
+#include "../localisation/Formatter.h"
+#include "../localisation/StringIds.h"
+
+#include <algorithm>
 
 using namespace OpenRCT2;
 
@@ -48,6 +52,26 @@ void ClimateObject::Unload()
 static RawClimate readWeatherTable(json_t& weather);
 static Climate convertRawClimate(const RawClimate& rawClimate);
 
+void ClimateObject::DrawPreview(DrawPixelInfo& dpi, int32_t width, int32_t height) const
+{
+    const auto dist = getYearlyDistribution();
+    const auto totalSize = kNumClimateMonths * kWeatherDistSize;
+
+    for (auto i = 0u; i < EnumValue(WeatherType::Count); i++)
+    {
+        auto type = WeatherType(i);
+        auto imageId = ImageId(ClimateGetWeatherSpriteId(type));
+        auto coords = ScreenCoordsXY(8 + (i % 3) * 35, 3 + (i / 3) * 37);
+        GfxDrawSprite(dpi, imageId, coords);
+
+        auto ft = Formatter();
+        ft.Add<uint16_t>(dist[i] * 100 / totalSize);
+        DrawTextEllipsised(
+            dpi, coords + ScreenCoordsXY{ 12, 22 }, 35, STR_CLIMATE_WEATHER_PERCENT, ft,
+            { FontStyle::Small, TextAlignment::CENTRE });
+    }
+}
+
 void ClimateObject::ReadJson(IReadObjectContext* context, json_t& root)
 {
     Guard::Assert(root.is_object(), "ClimateObject::ReadJson expects parameter root to be an object");
@@ -58,11 +82,34 @@ void ClimateObject::ReadJson(IReadObjectContext* context, json_t& root)
     _climate = convertRawClimate(rawClimate);
 }
 
-const WeatherPattern& ClimateObject::getPatternForMonth(uint8_t month)
+const WeatherPattern& ClimateObject::getPatternForMonth(uint8_t month) const
 {
     return _climate[month];
 }
 
+YearlyDistribution ClimateObject::getYearlyDistribution() const
+{
+    auto weatherTypeCount = [](const WeatherPattern& pattern, const WeatherType target) {
+        auto count = 0u;
+        for (auto type : pattern.distribution)
+        {
+            if (type == target)
+                count++;
+        }
+        return count;
+    };
+
+    YearlyDistribution dist{};
+    for (auto m = 0; m < kNumClimateMonths; m++)
+    {
+        auto& pattern = getPatternForMonth(m);
+        for (auto i = 0u; i < EnumValue(WeatherType::Count); i++)
+            dist[i] += weatherTypeCount(pattern, WeatherType(i));
+    }
+
+    return dist;
+}
+
 static Climate convertRawClimate(const RawClimate& rawClimate)
 {
     Climate climate{};

src/openrct2/object/ClimateObject.h

@@ -14,6 +14,8 @@
 
 struct IReadObjectContext;
 
+using YearlyDistribution = std::array<uint8_t, EnumValue(WeatherType::Count)>;
+
 class ClimateObject final : public Object
 {
 private:
@@ -26,5 +28,8 @@ public:
     void Load() override;
     void Unload() override;
 
-    const WeatherPattern& getPatternForMonth(uint8_t month);
+    void DrawPreview(DrawPixelInfo& dpi, int32_t width, int32_t height) const override;
+
+    const WeatherPattern& getPatternForMonth(uint8_t month) const;
+    YearlyDistribution getYearlyDistribution() const;
 };