Files
VoxelEngine/src/window/Events.cpp
T
2022-03-08 21:01:36 +03:00

111 lines
2.7 KiB
C++

#include "Events.h"
#include <GL/glew.h>
#include <GLFW/glfw3.h>
#include <string.h>
bool* Events::_keys;
uint* Events::_frames;
uint Events::_current = 0;
float Events::deltaX = 0.0f;
float Events::deltaY = 0.0f;
float Events::x = 0.0f;
float Events::y = 0.0f;
bool Events::_cursor_locked = false;
bool Events::_cursor_started = false;
#define _MOUSE_BUTTONS 1024
void cursor_position_callback(GLFWwindow* window, double xpos, double ypos){
if (Events::_cursor_started){
Events::deltaX += xpos-Events::x;
Events::deltaY += ypos-Events::y;
}
else {
Events::_cursor_started = true;
}
Events::x = xpos;
Events::y = ypos;
}
void mouse_button_callback(GLFWwindow* window, int button, int action, int mode){
if (action == GLFW_PRESS){
Events::_keys[_MOUSE_BUTTONS+button] = true;
Events::_frames[_MOUSE_BUTTONS+button] = Events::_current;
}
else if (action == GLFW_RELEASE){
Events::_keys[_MOUSE_BUTTONS+button] = false;
Events::_frames[_MOUSE_BUTTONS+button] = Events::_current;
}
}
void key_callback(GLFWwindow* window, int key, int scancode, int action, int mode) {
if (action == GLFW_PRESS){
Events::_keys[key] = true;
Events::_frames[key] = Events::_current;
}
else if (action == GLFW_RELEASE){
Events::_keys[key] = false;
Events::_frames[key] = Events::_current;
}
}
void window_size_callback(GLFWwindow* window, int width, int height){
glViewport(0,0, width, height);
Window::width = width;
Window::height = height;
}
int Events::initialize(){
GLFWwindow* window = Window::window;
_keys = new bool[1032];
_frames = new uint[1032];
memset(_keys, false, 1032*sizeof(bool));
memset(_frames, 0, 1032*sizeof(uint));
glfwSetKeyCallback(window, key_callback);
glfwSetMouseButtonCallback(window, mouse_button_callback);
glfwSetCursorPosCallback(window, cursor_position_callback);
glfwSetWindowSizeCallback(window, window_size_callback);
return 0;
}
void Events::finalize(){
delete[] _keys;
delete[] _frames;
}
bool Events::pressed(int keycode){
if (keycode < 0 || keycode >= _MOUSE_BUTTONS)
return false;
return _keys[keycode];
}
bool Events::jpressed(int keycode){
if (keycode < 0 || keycode >= _MOUSE_BUTTONS)
return false;
return _keys[keycode] && _frames[keycode] == _current;
}
bool Events::clicked(int button){
int index = _MOUSE_BUTTONS+button;
return _keys[index];
}
bool Events::jclicked(int button){
int index = _MOUSE_BUTTONS+button;
return _keys[index] && _frames[index] == _current;
}
void Events::toogleCursor(){
_cursor_locked = !_cursor_locked;
Window::setCursorMode(_cursor_locked ? GLFW_CURSOR_DISABLED : GLFW_CURSOR_NORMAL);
}
void Events::pullEvents(){
_current++;
deltaX = 0.0f;
deltaY = 0.0f;
glfwPollEvents();
}