gRay.h

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/*
 * Copyright (C) 2016 Nitra Games Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef GRAPHICS_GRAY_H_
#define GRAPHICS_GRAY_H_
 
#include "gRenderObject.h"
 
#define GLM_ENABLE_EXPERIMENTAL
#define GLM_FORCE_DEFAULT_ALIGNED_GENTYPES
#include <glm/glm.hpp>
#include <glm/gtc/matrix_transform.hpp>
#include <glm/gtx/quaternion.hpp>
 
class gMesh;
class gBoundingBox;
 
 
class gRay : public gRenderObject {
public:
    gRay();
    gRay(const glm::vec3& originPoint, const glm::vec3& directionVector);
    virtual ~gRay();
 
    void setOrigin(const glm::vec3& originPoint);
    void setDirection(const glm::vec3& directionVector);
    const glm::vec3& getOrigin();
    const glm::vec3 getDirection();
    float getLength() const;
 
    bool intersects(gBoundingBox& boundingBox);
    float distance(gBoundingBox& boundingBox);
 
    void link(gMesh* mesh, float rayScale = 1.0f, bool isNormalized = false, float dx = 0.0f, float dy = 0.0f, float dz = 0.0f);
    void unlink();
 
    void draw();
 
private:
    glm::vec3 origin, direction;
    bool islinked;
    gMesh* linkedmesh;
    float scale;
    bool isnormalized;
    glm::vec3 pdiff;
    float length;
    glm::vec3 originpoint, directionpoint;
    glm::vec3 linkedmeshpos;
    glm::mat4 linkedmeshorientation;
};
 
#endif /* GRAPHICS_GRAY_H_ */