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Merge pull request #93 from teamfisk/OctreeRaycasting

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Entity in octree hit by ray
This commit is contained in:
Simon Holmberg
2016-02-11 17:25:02 +01:00
parent 38a3e88999 73f59b89cc
commit c8c4879554
4 changed files with 151 additions and 38 deletions
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include/Engine/Collision/Collision.h
+18 -5
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@@ -20,6 +20,9 @@
class World;
struct ComponentWrapper;
template<typename T>
class Octree;
namespace Collision
{
//Return true if the ray hits the box.
@@ -44,21 +47,24 @@ bool RayVsTriangle(const Ray& ray,
float& outVCoord,
bool trueOnNegativeDistance = false);
//Return true if the ray hits any of the triangles in the model. Stops checking when a hit is detected.
bool RayVsModel(const Ray& ray,
const std::vector<RawModel::Vertex>& modelVertices,
const std::vector<unsigned int>& modelIndices);
bool RayVsModel(const Ray& ray,
const RawModel::Vertex* modelVertices,
const std::vector<unsigned int>& modelIndices,
const glm::mat4& modelMatrix);
//Return true if the ray hits any of the triangles in the model.
//Also returns the position of the intersection point. Will loop through all the whole model indices.
bool RayVsModel(const Ray& ray,
const std::vector<RawModel::Vertex>& modelVertices,
const RawModel::Vertex* modelVertices,
const std::vector<unsigned int>& modelIndices,
const glm::mat4& modelMatrix,
glm::vec3& outHitPosition);
//Return true if the ray hits any of the triangles in the model.
//Also returns the distance from the ray origin to the closest
//intersection point, and the barycentric u,v-coordinates. Will loop through all the whole model indices.
bool RayVsModel(const Ray& ray,
const std::vector<RawModel::Vertex>& modelVertices,
const RawModel::Vertex* modelVertices,
const std::vector<unsigned int>& modelIndices,
const glm::mat4& modelMatrix,
float& outDistance,
float& outUCoord,
float& outVCoord);
@@ -81,6 +87,13 @@ bool AABBVsAABB(const AABB& a, const AABB& b, glm::vec3& minimumTranslation);
// Calculates an absolute AABB from an entity AABB component
boost::optional<EntityAABB> EntityAbsoluteAABB(EntityWrapper& entity, bool takeModelBox = false);
boost::optional<EntityAABB> AbsoluteAABBExplosionEffect(EntityWrapper& entity);
//Returns the first entity hit by the input ray. entitiesPotentiallyHitSorted needs to be sorted
//by their distance to the ray, e.g. result from Octree<EntityAABB>::ObjectsPossiblyHitByRay.
//Returns boost::none if none was hit. outDistance will be the distance to the intersection point if the ray intersects.
boost::optional<EntityAABB> EntityFirstHitByRay(const Ray& ray, std::vector<EntityAABB> entitiesPotentiallyHitSorted, float outDistance, glm::vec3& outIntersectPos);
//Returns the first entity hit by the input ray that exists in the octree.
//outDistance will be the distance to the intersection point if the ray intersects.
boost::optional<EntityAABB> EntityFirstHitByRay(const Ray& ray, Octree<EntityAABB>* octree, float outDistance, glm::vec3& outIntersectPos);
}