SurfaceFluidTarget.h

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#pragma once
#include "common/Export.h"
 
 
#include "editing/EditableTarget.h"
#include "editing/EditingAuthority.h"
#include "editing/EditingProperty.h"
 
#include <string>
#include <vector>
 
namespace eve::fluids {
class SurfaceDropletSimulation;
struct SurfaceFluidRenderParams;
struct SurfaceWetnessParams;
}  // namespace eve::fluids
 
namespace eve::fluids_editing {
 
using CapabilityId       = editing::CapabilityId;
using DiagnosticSeverity = editing::DiagnosticSeverity;
using DomainOperation    = editing::DomainOperation;
using EditRegion         = editing::EditRegion;
using EditorDiagnostic   = editing::Diagnostic;
 
using editing::Result;
using EditorStatus           = editing::Status;
using EditorValue            = editing::Value;
using IDomainOperationTarget = editing::IDomainOperationTarget;
using IEditableTarget        = editing::IEditableTarget;
using IPropertyProvider      = editing::IPropertyProvider;
using PropertyDescriptor     = editing::PropertyDescriptor;
using PropertyFlag           = editing::PropertyFlag;
using PropertyPath           = editing::PropertyPath;
using PropertyReadResult     = editing::PropertyReadResult;
using PropertyReadState      = editing::PropertyReadState;
using PropertySchema         = editing::PropertySchema;
using PropertySetMode        = editing::PropertySetMode;
using PropertyType           = editing::PropertyType;
using Revision               = editing::Revision;
using RuleId                 = editing::RuleId;
using SelectionSnapshot      = editing::SelectionSnapshot;
using TargetDescriptor       = editing::TargetDescriptor;
using TargetId               = editing::TargetId;
 
using editing::validatePropertyValue;
 
struct SurfaceFluidSettings {
    double gravityX = 0.0, gravityY = -9.8, gravityZ = 0.0;
    double friction = 1.5, maxSpeed = 12.0, adhesionAcceleration = 12.0;
    int    maxCrossings        = 16;
    double contactAngleDegrees = 72.0, mergeRadiusScale = 0.72, trailDeposition = 0.22;
    double airDrag = 0.08, reattachDistance = 0.035;
    double diffusion = 0.18, evaporation = 0.025, maxWetness = 1.0;
    double velocityStretch = 0.30, maxAspectRatio = 2.6, surfaceOffset = 0.001;
    double dryRoughness = 0.48, wetRoughness = 0.08;
    double drySpecular = 0.35, wetSpecular = 0.92;
    double wetDarkening = 0.12, normalStrength = 0.18;
 
    auto operator<=>(const SurfaceFluidSettings&) const = default;
};
 
class EVENGINE_API_ORCHESTRATION SurfaceFluidTarget final : public ::eve::editing::EditableTargetState,
                                                            public virtual IEditableTarget,
                                                            public IDomainOperationTarget,
                                                            public IPropertyProvider {
public:
    explicit SurfaceFluidTarget(std::string id);
    TargetId         targetId() const override { return TargetId(id_); }
    TargetDescriptor describe() const override;
    void*                         queryCapability(const CapabilityId& capability) override;
    Result<void>            applyDomainOperation(const DomainOperation& operation) override;
    eve::Result<eve::Revision>    currentRevision(const SelectionSnapshot& selection) const override;
    PropertySchema                schema(const SelectionSnapshot& selection) const override;
    PropertyReadResult            read(const SelectionSnapshot& selection, const PropertyPath& path) const override;
    Result<DomainOperation> makeSet(const SelectionSnapshot& selection, const PropertyPath& path,
                                          const EditorValue& value, PropertySetMode mode) const override;
    Result<DomainOperation> makeReset(const SelectionSnapshot& selection,
                                            const PropertyPath&      path) const override;
    SurfaceFluidSettings settings() const { return settings_; }
    std::vector<EditorDiagnostic> validate() const;
    EditorValue snapshotValue() const;
    Result<void> loadSnapshot(const EditorValue& snapshot);
 
private:
    bool                 matches(const SelectionSnapshot& selection) const;
    std::string          id_;
    SurfaceFluidSettings settings_;
};
 
class EVENGINE_API_ORCHESTRATION SurfaceFluidRuntimeApplier {
public:
    Result<void> apply(const SurfaceFluidTarget& target, fluids::SurfaceDropletSimulation* simulation,
                             fluids::SurfaceFluidRenderParams* render, fluids::SurfaceWetnessParams* wetness) const;
};
 
}  // namespace eve::fluids_editing