LandmassGenerator/Keyboard.cpp at master · DeryabinIvan/LandmassGenerator · GitHub

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
#include "Keyboard.h"

#include <algorithm>

bool Keyboard::mode[3];
std::vector<int> Keyboard::p_keys;

void Keyboard::callback(GLFWwindow* window, int key, int scancode, int action, int _mode) {
	if (action == GLFW_PRESS) {
		p_keys.push_back(key);
	} else if (action == GLFW_RELEASE) {
		p_keys.erase(std::remove(p_keys.begin(), p_keys.end(), key), p_keys.end());
	}

	switch (_mode) {
		case GLFW_MOD_CONTROL:
			mode[0] = true;
			break;

		case GLFW_MOD_SHIFT:
			mode[1] = true;
			break;

		case GLFW_MOD_ALT:
			mode[2] = true;
			break;

		default:
			mode[0] = mode[1] = mode[2] = false;
	}
}

Keyboard::Keyboard(GLFWwindow* window) {
	glfwSetKeyCallback(window, callback);
}

bool Keyboard::keyPressed(int key) const {
	if (!p_keys.empty())
		return std::find(p_keys.begin(), p_keys.end(), key) != p_keys.end();
	else
		return false;
}

bool Keyboard::keyPressedOnce(int key) const {
	if (!p_keys.empty()) {
		if (std::find(p_keys.begin(), p_keys.end(), key) != p_keys.end()) {
			p_keys.erase(std::remove(p_keys.begin(), p_keys.end(), key), p_keys.end());
			return true;
		}
	}
	return false;
}

int Keyboard::getPressedKey() const {
	if (!p_keys.empty())
		return p_keys.front();
	else
		return Keyboard::UNKNOWN;
}

std::vector<int> Keyboard::pressedKeys() {
	return p_keys;
}

int Keyboard::keyMode() const {
	int result = 0;
	if (mode[0]) result |= GLFW_MOD_CONTROL;
	if (mode[1]) result |= GLFW_MOD_SHIFT;
	if (mode[2]) result |= GLFW_MOD_ALT;

	return result;
}