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axyz/include/Engine/Collision/Collision.h
T
viktorljung 08328a781c Merge remote-tracking branch 'origin/master' into Animations
# Conflicts:
#	assets
#	include/Engine/Rendering/Model.h
#	src/Engine/Collision/Collision.cpp
2016-02-10 14:13:08 +01:00

86 lines
3.2 KiB
C++

#ifndef Collision_h__
#define Collision_h__
//NOTE: Collision.h needs to be #included before <GLFW/glfw3.h>,
//because Collision #includes "RawModel.h", which has "Texture.h", which has "OpenGL.h" which must be #included first
//or you will get "fatal error C1189: #error: gl.h included before glew.h"
#include <vector>
#include <boost/optional.hpp>
#include "../Core/Ray.h"
#include "../Core/AABB.h"
#include "Rendering/RawModelCustom.h"
//#include "Rendering/RawModelAssimp.h"
#include "../Core/Transform.h"
#include "../Core/Entity.h"
#include "../Core/EntityWrapper.h"
#include "EntityAABB.h"
class World;
struct ComponentWrapper;
namespace Collision
{
//Return true if the ray hits the box.
bool RayAABBIntr(const Ray& ray, const AABB& box);
bool RayVsAABB(const Ray& ray, const AABB& box);
//Return true if the ray hits the box, also outputs distance from ray origin to intersection point in [outDistance].
bool RayVsAABB(const Ray& ray, const AABB& box, float& outDistance);
//Return true if the ray hits the triangle.
bool RayVsTriangle(const Ray& ray,
const glm::vec3& v0,
const glm::vec3& v1,
const glm::vec3& v2,
bool trueOnNegativeDistance = false);
//Return true if the ray hits the triangle, and the distance is less than outDistance.
bool RayVsTriangle(const Ray& ray,
const glm::vec3& v0,
const glm::vec3& v1,
const glm::vec3& v2,
float& outDistance,
float& outUCoord,
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);
//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 std::vector<unsigned int>& modelIndices,
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 std::vector<unsigned int>& modelIndices,
float& outDistance,
float& outUCoord,
float& outVCoord);
bool AABBvsTriangles(const AABB& box,
const RawModel::Vertex* modelVertices,
const std::vector<unsigned int>& modelIndices,
const glm::mat4& modelMatrix,
glm::vec3& boxVelocity,
float verticalStepHeight,
bool& isOnGround,
glm::vec3& outResolutionVector);
//Return true if the boxes are intersecting.
bool AABBVsAABB(const AABB& a, const AABB& b);
//Return true if the boxes are intersecting.
//Also outputs the minimum translation that box [a] would need in order to resolve collision.
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);
}
#endif