Tool_Crowd.h

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//
// Copyright (c) 2009-2010 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty.  In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
//    claim that you wrote the original software. If you use this software
//    in a product, an acknowledgment in the product documentation would be
//    appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
//    misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
 
#pragma once
 
#include "DetourCrowd.h"
#include "Sample.h"
#include "ValueHistory.h"
 
struct CrowdToolParams
{
    bool showCorners = false;
    bool showCollisionSegments = false;
    bool showPath = false;
    bool showVO = false;
    bool showOpt = false;
    bool showNeighbors = false;
 
    bool showLabels = false;
    bool showGrid = false;
    bool showNodes = false;
    bool showPerfGraph = false;
    bool showDetailAll = false;
 
    bool anticipateTurns = true;
    bool optimizeVis = true;
    bool optimizeTopo = true;
    bool obstacleAvoidance = true;
    int obstacleAvoidanceType = 1;
    bool separation = false;
    float separationWeight = 2.0f;
};
 
class CrowdToolState : public SampleToolState
{
    Sample* sample = nullptr;
 
    float targetPosition[3]{};
    dtPolyRef targetPolyRef{0};
 
    dtCrowdAgentDebugInfo agentDebug;
    dtObstacleAvoidanceDebugData* obstacleAvoidanceDebugData = nullptr;
 
    static constexpr int AGENT_MAX_TRAIL = 64;
    static constexpr int MAX_AGENTS = 128;
 
    struct AgentTrail
    {
        float trail[AGENT_MAX_TRAIL * 3];
        int htrail;
    };
    AgentTrail trails[MAX_AGENTS];
 
    ValueHistory crowdTotalTime;
    ValueHistory crowdSampleCount;
 
    CrowdToolParams toolParams;
 
    bool run = true;
 
public:
    CrowdToolState();
    CrowdToolState(const CrowdToolState&) = delete;
    CrowdToolState(const CrowdToolState&&) = delete;
    CrowdToolState& operator=(const CrowdToolState&) = delete;
    CrowdToolState& operator=(const CrowdToolState&&) = delete;
    ~CrowdToolState() override;
 
    void init(Sample* newSample) override;
    void reset() override;
    void render() override;
    void renderOverlay() override;
    void update(float dt) override;
 
    [[nodiscard]] bool isRunning() const { return run; }
    void setRunning(const bool s) { run = s; }
 
    void addAgent(const float* pos);
    void removeAgent(int idx);
    void highlightAgent(int idx);
    void updateAgentParams();
    int hitTestAgents(const float* s, const float* p);
    void setMoveTarget(const float* p, bool adjust);
    void updateTick(float dt);
 
    CrowdToolParams* getToolParams() { return &toolParams; }
};
 
class CrowdTool : public SampleTool
{
    Sample* sample = nullptr;
    CrowdToolState* state = nullptr;
 
    enum class ToolMode : uint8_t
    {
        CREATE,
        MOVE_TARGET,
        SELECT,
        TOGGLE_POLYS
    };
    ToolMode mode = ToolMode::CREATE;
 
public:
    SampleToolType type() override { return SampleToolType::CROWD; }
    void init(Sample* sample) override;
    void reset() override;
    void drawMenuUI() override;
    void onClick(const float* s, const float* p, bool shift) override;
    void onToggle() override;
    void singleStep() override;
    void update(float dt) override;
    void render() override;
    void drawOverlayUI() override;
};