WaterSystem.h

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#pragma once
 
#include "common/Result.h"
 
#include <cstdint>
 
#include <glm/glm.hpp>
 
namespace ssq {
class Table;
}
 
namespace eve::graphics {
 
enum class WaterAutoUpdateMode : std::uint8_t { Interval = 0, SceneConditions = 1 };
 
struct WaterSceneConditions {
    glm::vec3 sunColor{1.0F};
    glm::vec3 sunDirection{0.0F};
    float     sunIntensity = 1.0F;
    int       hour = 12;
    int       minute = 0;
    bool      sunAvailable = true;
    bool      timeAvailable = false;
};
 
struct WaterSystemSettings {
    WaterAutoUpdateMode autoUpdateMode = WaterAutoUpdateMode::Interval;
    float refreshRate = 0.5F;
    bool  infiniteMode = true;
    bool  autoRefresh = true;
    bool  ignoreSceneConditions = true;
};
 
struct WaterSystemState {
    WaterSceneConditions observed{};
    float seaLevel = 25.0F;
    float positionX = 0.0F;
    float positionY = 25.0F;
    float positionZ = 0.0F;
    float refreshRemaining = 0.5F;
    int   sceneCheckFrames = 0;
    std::uint64_t refreshRevision = 0;
    bool initialized = false;
};
 
[[nodiscard]] EVENGINE_API_BACKENDS Result<void> initializeWaterSystem(WaterSystemState&           state,
                                                                       const WaterSystemSettings&  settings,
                                                                       const WaterSceneConditions& scene,
                                                                       int initialSceneCheckFrames);
 
[[nodiscard]] EVENGINE_API_BACKENDS Result<bool> advanceWaterSystem(WaterSystemState&           state,
                                                                    const WaterSystemSettings&  settings,
                                                                    const WaterSceneConditions& scene, float playerX,
                                                                    float playerZ, float dt, int nextSceneCheckFrames);
 
[[nodiscard]] EVENGINE_API_BACKENDS Result<bool> updateWaterSeaLevel(WaterSystemState& state, float seaLevel,
                                                                     bool regenerateReflections);
 
void exposeWaterSystemBindings(ssq::Table& table);
 
}  // namespace eve::graphics