diff options
Diffstat (limited to 'inc/camera.hpp')
-rw-r--r-- | inc/camera.hpp | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/inc/camera.hpp b/inc/camera.hpp new file mode 100644 index 0000000..62ae837 --- /dev/null +++ b/inc/camera.hpp @@ -0,0 +1,57 @@ +#ifndef camera_h +#define camera_h + +struct Camera +{ + public: + Camera(const glm::vec3& pos, float fov, float aspect, float zNear, float zFar){ + this->pos = pos; + this->forward = glm::vec3(0.0f, 0.0f, -1.0f); + this->up = glm::vec3(0.0f, 1.0f, 0.0f); + this->projection = glm::perspective(fov, aspect, zNear, zFar); + } + + inline glm::mat4 GetViewProjection() const { + return projection * glm::lookAt(pos, pos + forward, up); + } + + void MoveForward(){ + pos += forward * amt; + } + + void MoveBackward(){ + pos += forward * -amt; + } + + void MoveRight(){ + pos += -glm::cross(up, forward) * amt; + } + + void MoveLeft(){ + pos += glm::cross(up, forward) * amt; + } + + void MoveUp(){ + pos += glm::vec3(0,.2,0); + } + + void MoveDown(){ + pos -= glm::vec3(0,.2,0); + } + + void Pitch(float angle){ + glm::vec3 right = glm::normalize(glm::cross(up, forward)); + + forward = glm::vec3(glm::normalize(glm::rotate(angle, right) * glm::vec4(forward, 0.0))); + up = glm::normalize(glm::cross(forward, right)); + } + + private: + float amt = .2; + glm::mat4 projection; + glm::vec3 pos; + glm::vec3 forward; + glm::vec3 up; +}; + +#endif |