William Moberg
52 lines
2.0 KiB
C++
52 lines
2.0 KiB
C++
#ifndef Collision_h__
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#define Collision_h__
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#include <vector>
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#include "Core/Ray.h"
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#include "Core/AABB.h"
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#include "Engine/Rendering/RawModel.h"
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#include "Core/Entity.h"
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class World;
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struct ComponentWrapper;
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namespace Collision
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{
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//Return true if the ray hits the box.
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bool RayAABBIntr(const Ray& ray, const AABB& box);
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bool RayVsAABB(const Ray& ray, const AABB& box);
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//Return true if the ray hits the box, also outputs distance from ray origin to intersection point in [outDistance].
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bool RayVsAABB(const Ray& ray, const AABB& box, float& outDistance);
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//Return true if the ray hits any of the triangles in the model. Stops checking when a hit is detected.
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bool RayVsModel(const Ray& ray,
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const std::vector<RawModel::Vertex>& modelVertices,
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const std::vector<unsigned int>& modelIndices);
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//Return true if the ray hits any of the triangles in the model.
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//Also returns the position of the intersection point. Will loop through all the whole model indices.
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bool RayVsModel(const Ray& ray,
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const std::vector<RawModel::Vertex>& modelVertices,
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const std::vector<unsigned int>& modelIndices,
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glm::vec3& outHitPosition);
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//Return true if the ray hits any of the triangles in the model.
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//Also returns the distance from the ray origin to the closest
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//intersection point, and the barycentric u,v-coordinates. Will loop through all the whole model indices.
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bool RayVsModel(const Ray& ray,
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const std::vector<RawModel::Vertex>& modelVertices,
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const std::vector<unsigned int>& modelIndices,
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float& outDistance,
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float& outUCoord,
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float& outVCoord);
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//Return true if the boxes are intersecting.
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bool AABBVsAABB(const AABB& a, const AABB& b);
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bool IsSameBoxProbably(const AABB& first, const AABB& second, const float epsilon = 0.0001f);
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//Returns true if the entity has a boundingbox. Outputs the aabb in [outBox].
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bool GetEntityBox(World* world, EntityID entity, AABB& outBox, bool forceBoxFromModel = false);
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bool GetEntityBox(World* world, ComponentWrapper& AABBComponent, AABB& outBox);
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}
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#endif |