diff options
author | LaG1924 <12997935+LaG1924@users.noreply.github.com> | 2017-05-13 16:01:56 +0200 |
---|---|---|
committer | LaG1924 <12997935+LaG1924@users.noreply.github.com> | 2017-05-13 16:01:56 +0200 |
commit | 1563ae5be6bc130a9b3a23464f7e28fdb1e87da3 (patch) | |
tree | b1f65a03827494fa78e320b134f4cc7df54754bb /code/graphics/Camera3D.hpp | |
parent | 2017-05-12 (diff) | |
download | AltCraft-1563ae5be6bc130a9b3a23464f7e28fdb1e87da3.tar AltCraft-1563ae5be6bc130a9b3a23464f7e28fdb1e87da3.tar.gz AltCraft-1563ae5be6bc130a9b3a23464f7e28fdb1e87da3.tar.bz2 AltCraft-1563ae5be6bc130a9b3a23464f7e28fdb1e87da3.tar.lz AltCraft-1563ae5be6bc130a9b3a23464f7e28fdb1e87da3.tar.xz AltCraft-1563ae5be6bc130a9b3a23464f7e28fdb1e87da3.tar.zst AltCraft-1563ae5be6bc130a9b3a23464f7e28fdb1e87da3.zip |
Diffstat (limited to 'code/graphics/Camera3D.hpp')
-rw-r--r-- | code/graphics/Camera3D.hpp | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/code/graphics/Camera3D.hpp b/code/graphics/Camera3D.hpp new file mode 100644 index 0000000..eac1f47 --- /dev/null +++ b/code/graphics/Camera3D.hpp @@ -0,0 +1,66 @@ +#pragma once + +// Std. Includes +#include <vector> + +// GL Includes +#include <GL/glew.h> +#include <glm/glm.hpp> +#include <glm/gtc/matrix_transform.hpp> + + +// Defines several possible options for camera movement. Used as abstraction to stay away from window-system specific input methods +enum Camera_Movement { + FORWARD, + BACKWARD, + LEFT, + RIGHT +}; + +// Default camera values +const GLfloat YAW = -90.0f; +const GLfloat PITCH = 0.0f; +const GLfloat SPEED = 30.0f; +const GLfloat SENSITIVTY = 0.2f; +const GLfloat ZOOM = 45.0f; + +// An abstract camera class that processes input and calculates the corresponding Eular Angles, Vectors and Matrices for use in OpenGL +class Camera3D { +public: + // Camera3D Attributes + glm::vec3 Position; + glm::vec3 Front; + glm::vec3 Up; + glm::vec3 Right; + glm::vec3 WorldUp; + // Eular Angles + GLfloat Yaw; + GLfloat Pitch; + // Camera3D options + GLfloat MovementSpeed; + GLfloat MouseSensitivity; + GLfloat Zoom; + + // Constructor with vectors + explicit Camera3D(glm::vec3 position = glm::vec3(0.0f, 0.0f, 3.0f), glm::vec3 up = glm::vec3(0.0f, 1.0f, 0.0f), + GLfloat yaw = YAW, GLfloat pitch = PITCH); + + // Constructor with scalar values + Camera3D(GLfloat posX, GLfloat posY, GLfloat posZ, GLfloat upX, GLfloat upY, GLfloat upZ, GLfloat yaw, GLfloat pitch); + + // Returns the view matrix calculated using Eular Angles and the LookAt Matrix + glm::mat4 GetViewMatrix(); + + // Processes input received from any keyboard-like input system. Accepts input parameter in the form of camera defined ENUM (to abstract it from windowing systems) + void ProcessKeyboard(Camera_Movement direction, GLfloat deltaTime); + + // Processes input received from a mouse input system. Expects the offset value in both the x and y direction. + void ProcessMouseMovement(GLfloat xoffset, GLfloat yoffset, GLboolean constrainPitch = true); + + // Processes input received from a mouse scroll-wheel event. Only requires input on the vertical wheel-axis + void ProcessMouseScroll(GLfloat yoffset); + +private: + // Calculates the front vector from the Camera3D's (updated) Eular Angles + void updateCameraVectors(); +};
\ No newline at end of file |