ParticleGraph.h

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#pragma once
#include "common/Export.h"
 
 
#include "particles/editing/ParticlesEditingTypes.h"
 
#include <functional>
#include <string>
#include <vector>
 
namespace eve::particles_editing {
 
struct ParticleGraphCompileResult {
    EditorStatus status = EditorStatus::Failed;
    Revision documentRevision = 0;
    EditorValue configuration;
    std::vector<EditorDiagnostic> diagnostics;
};
 
struct ParticleGraphPreviewResult {
    EditorStatus status = EditorStatus::Failed;
    Revision documentRevision = 0;
    int spawnedParticles = 0;
    int peakLiveParticles = 0;
    int droppedParticles = 0;
    double simulatedSeconds = 0.0;
    std::vector<EditorDiagnostic> diagnostics;
};
 
class EVENGINE_API_ORCHESTRATION ParticleGraphDomain final : public IGraphDomainProvider {
public:
    std::string domain() const override { return "particles.emitter"; }
    GraphConnectionDecision canConnect(const GraphPinRecord& from,
                                       const GraphPinRecord& to) const override;
    Result<GraphNodeRecord> makeNode(const GraphNodeId& id, const std::string& type) const;
    ParticleGraphCompileResult compile(const GraphDocumentData& graph) const;
    ParticleGraphPreviewResult preview(const GraphDocumentData& graph, double seconds,
                                       double fixedStep = 1.0 / 60.0,
                                       int particleBudget = 100000,
                                       int spawnBudgetPerFrame = 0) const;
};
 
}  // namespace eve::particles_editing
 
namespace eve::particles {
class ParticleEmitter;
}
namespace eve::graphics {
class Texture;
}
 
namespace eve::particles_editing {
 
class ParticleGraphRuntimeBuilder {
public:
    using TextureResolver = std::function<graphics::Texture*(const std::string& asset)>;
    Result<void> apply(const GraphDocumentData& graph,
                             particles::ParticleEmitter* emitter,
                             const TextureResolver& textures = {}) const;
};
 
}  // namespace eve::particles_editing