-
Notifications
You must be signed in to change notification settings - Fork 0
/
Camera.cpp
78 lines (64 loc) · 2.44 KB
/
Camera.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
#include"Camera.h"
Camera::Camera(int width, int height, glm::vec3 position) {
Camera::width = width;
Camera::height = height;
Position = position;
}
void Camera::updateMatrix(float FOVdeg, float nearPlane, float farPlane) {
glm::mat4 view = glm::mat4(1.0f);
glm::mat4 projection = glm::mat4(1.0f);
view = glm::lookAt(Position, Position + Orientation, Up);
projection = glm::perspective(glm::radians(FOVdeg), (float)width / height, nearPlane, farPlane);
cameraMatrix = projection * view;
}
void Camera::Matrix(Shader& shader, const char* uniform) {
glUniformMatrix4fv(glGetUniformLocation(shader.ID, uniform), 1, GL_FALSE, glm::value_ptr(cameraMatrix));
}
void Camera::Inputs(GLFWwindow* window) {
if (glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS) {
Position += speed * Orientation;
}
if (glfwGetKey(window, GLFW_KEY_A) == GLFW_PRESS) {
Position += speed * -glm::normalize(glm::cross(Orientation, Up));
}
if (glfwGetKey(window, GLFW_KEY_S) == GLFW_PRESS) {
Position += speed * -Orientation;
}
if (glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS) {
Position += speed * glm::normalize(glm::cross(Orientation, Up));
}
if (glfwGetKey(window, GLFW_KEY_SPACE) == GLFW_PRESS) {
Position += speed * Up;
}
if (glfwGetKey(window, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS) {
Position += speed * -Up;
}
if (glfwGetKey(window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS) {
speed = 0.005f;
}
else if (glfwGetKey(window, GLFW_KEY_LEFT_SHIFT) == GLFW_RELEASE) {
speed = 0.0025f;
}
if (glfwGetMouseButton(window, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS) {
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
if (firstClick) {
glfwSetCursorPos(window, (width / 2), (height / 2));
firstClick = false;
}
double mouseX;
double mouseY;
glfwGetCursorPos(window, &mouseX, &mouseY);
float rotX = sensitivity * (float)(mouseY - (height / 2)) / height;
float rotY = sensitivity * (float)(mouseX - (width / 2)) / width;
glm::vec3 newOrientation = glm::rotate(Orientation, glm::radians(-rotX), glm::normalize(glm::cross(Orientation, Up)));
if (abs(glm::angle(newOrientation, Up) - glm::radians(90.0f)) <= glm::radians(85.0f)) {
Orientation = newOrientation;
}
Orientation = glm::rotate(Orientation, glm::radians(-rotY), Up);
glfwSetCursorPos(window, (width / 2), (height / 2));
}
else if (glfwGetMouseButton(window, GLFW_MOUSE_BUTTON_LEFT) == GLFW_RELEASE) {
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
firstClick = true;
}
}