WallDetection.hpp

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#pragma once
 
#include "SweptCollision.hpp"
 
#include <cmath>
#include <glm/vec3.hpp>

namespace physics
{

struct WallDetectionResult
{
    // Side walls (wallrunning)
    bool wallLeft{false};        
    bool wallRight{false};       
    glm::vec3 leftNormal{0.0f};  
    glm::vec3 rightNormal{0.0f}; 
    glm::vec3 leftPoint{0.0f};   
    glm::vec3 rightPoint{0.0f};  
 
    // Front wall (climbing)
    bool wallFront{false};       
    glm::vec3 frontNormal{0.0f}; 
    glm::vec3 frontPoint{0.0f};  
 
    // Ledge (top of front wall)
    bool ledgeDetected{false};   
    glm::vec3 ledgePoint{0.0f};  
    glm::vec3 ledgeNormal{0.0f}; 
 
    // Ground distance
    float groundDistance{1e10f}; 
};

WallDetectionResult detectWalls(glm::vec3 pos,
                                float yaw,
                                glm::vec3 halfExtents,
                                const WorldGeometry& world,
                                float checkDist,
                                float sphereRadius,
                                glm::vec3 prevWallNormal = glm::vec3(0.0f));

inline bool isWallNormal(glm::vec3 normal)
{
    return std::abs(normal.y) < 0.3f;
}
 
} // namespace physics