Refactor renderer and input handling; add OBJ loader and math utilities
- Updated renderer.h to replace Vec3 and Vec2 structs with Math namespace equivalents. - Introduced Texture struct to manage texture properties. - Modified Triangle struct to use Texture instead of GLuint for texture handling. - Removed deprecated matrix functions and replaced them with Math namespace methods. - Implemented InputManager class for better input handling, including key and mouse state tracking. - Added ObjLoader class to load OBJ files and associated textures, with MTL file parsing. - Created math utilities for fixed-point arithmetic and vector/matrix operations. - Added time management class for frame timing and delta time calculations.
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ExilProductions
157
Engine/input/input.cpp
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157
Engine/input/input.cpp
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#include "input.h"
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#include <algorithm>
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InputManager::InputManager(GLFWwindow* win) : window(win), scroll_delta(0.0f, 0.0f) {
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std::fill(previous_key_states.begin(), previous_key_states.end(), false);
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std::fill(previous_mouse_button_states.begin(), previous_mouse_button_states.end(), false);
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glfwSetWindowUserPointer(window, this);
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glfwSetScrollCallback(window, [](GLFWwindow* w, double xoffset, double yoffset) {
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InputManager* manager = static_cast<InputManager*>(glfwGetWindowUserPointer(w));
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manager->scroll_delta.x += static_cast<float>(xoffset);
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manager->scroll_delta.y += static_cast<float>(yoffset);
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});
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double x, y;
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glfwGetCursorPos(window, &x, &y);
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last_mouse_position = Vec2(static_cast<float>(x), static_cast<float>(y));
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}
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int InputManager::get_key_code(InputKey key) {
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switch (key) {
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case InputKey::KEY_A: return GLFW_KEY_A;
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case InputKey::KEY_B: return GLFW_KEY_B;
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case InputKey::KEY_C: return GLFW_KEY_C;
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case InputKey::KEY_D: return GLFW_KEY_D;
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case InputKey::KEY_E: return GLFW_KEY_E;
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case InputKey::KEY_F: return GLFW_KEY_F;
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case InputKey::KEY_G: return GLFW_KEY_G;
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case InputKey::KEY_H: return GLFW_KEY_H;
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case InputKey::KEY_I: return GLFW_KEY_I;
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case InputKey::KEY_J: return GLFW_KEY_J;
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case InputKey::KEY_K: return GLFW_KEY_K;
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case InputKey::KEY_L: return GLFW_KEY_L;
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case InputKey::KEY_M: return GLFW_KEY_M;
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case InputKey::KEY_N: return GLFW_KEY_N;
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case InputKey::KEY_O: return GLFW_KEY_O;
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case InputKey::KEY_P: return GLFW_KEY_P;
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case InputKey::KEY_Q: return GLFW_KEY_Q;
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case InputKey::KEY_R: return GLFW_KEY_R;
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case InputKey::KEY_S: return GLFW_KEY_S;
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case InputKey::KEY_T: return GLFW_KEY_T;
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case InputKey::KEY_U: return GLFW_KEY_U;
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case InputKey::KEY_V: return GLFW_KEY_V;
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case InputKey::KEY_W: return GLFW_KEY_W;
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case InputKey::KEY_X: return GLFW_KEY_X;
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case InputKey::KEY_Y: return GLFW_KEY_Y;
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case InputKey::KEY_Z: return GLFW_KEY_Z;
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case InputKey::KEY_0: return GLFW_KEY_0;
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case InputKey::KEY_1: return GLFW_KEY_1;
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case InputKey::KEY_2: return GLFW_KEY_2;
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case InputKey::KEY_3: return GLFW_KEY_3;
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case InputKey::KEY_4: return GLFW_KEY_4;
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case InputKey::KEY_5: return GLFW_KEY_5;
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case InputKey::KEY_6: return GLFW_KEY_6;
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case InputKey::KEY_7: return GLFW_KEY_7;
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case InputKey::KEY_8: return GLFW_KEY_8;
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case InputKey::KEY_9: return GLFW_KEY_9;
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case InputKey::KEY_UP: return GLFW_KEY_UP;
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case InputKey::KEY_DOWN: return GLFW_KEY_DOWN;
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case InputKey::KEY_LEFT: return GLFW_KEY_LEFT;
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case InputKey::KEY_RIGHT: return GLFW_KEY_RIGHT;
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case InputKey::KEY_ENTER: return GLFW_KEY_ENTER;
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case InputKey::KEY_BACKSPACE: return GLFW_KEY_BACKSPACE;
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case InputKey::KEY_TAB: return GLFW_KEY_TAB;
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case InputKey::KEY_SHIFT: return GLFW_KEY_LEFT_SHIFT;
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case InputKey::KEY_CONTROL: return GLFW_KEY_LEFT_CONTROL;
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case InputKey::KEY_ALT: return GLFW_KEY_LEFT_ALT;
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case InputKey::KEY_CAPS_LOCK: return GLFW_KEY_CAPS_LOCK;
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case InputKey::KEY_SPACE: return GLFW_KEY_SPACE;
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case InputKey::KEY_ESCAPE: return GLFW_KEY_ESCAPE;
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default: return -1;
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}
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}
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int InputManager::get_mouse_button_code(InputKey key) {
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switch (key) {
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case InputKey::MOUSE_LEFT: return GLFW_MOUSE_BUTTON_LEFT;
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case InputKey::MOUSE_RIGHT: return GLFW_MOUSE_BUTTON_RIGHT;
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case InputKey::MOUSE_MIDDLE: return GLFW_MOUSE_BUTTON_MIDDLE;
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case InputKey::MOUSE_BUTTON_4: return GLFW_MOUSE_BUTTON_4;
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case InputKey::MOUSE_BUTTON_5: return GLFW_MOUSE_BUTTON_5;
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case InputKey::MOUSE_BUTTON_6: return GLFW_MOUSE_BUTTON_6;
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case InputKey::MOUSE_BUTTON_7: return GLFW_MOUSE_BUTTON_7;
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case InputKey::MOUSE_BUTTON_8: return GLFW_MOUSE_BUTTON_8;
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default: return -1;
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}
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}
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bool InputManager::is_pressed(InputKey key) {
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int key_code = get_key_code(key);
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if (key_code != -1) {
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return glfwGetKey(window, key_code) == GLFW_PRESS;
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}
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int button = get_mouse_button_code(key);
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if (button != -1) {
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return glfwGetMouseButton(window, button) == GLFW_PRESS;
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}
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return false;
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}
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bool InputManager::was_pressed(InputKey key) {
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int key_code = get_key_code(key);
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if (key_code != -1) {
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bool current = glfwGetKey(window, key_code) == GLFW_PRESS;
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bool previous = previous_key_states[key_code];
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return current && !previous;
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}
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int button = get_mouse_button_code(key);
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if (button != -1) {
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bool current = glfwGetMouseButton(window, button) == GLFW_PRESS;
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bool previous = previous_mouse_button_states[button];
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return current && !previous;
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}
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return false;
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}
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bool InputManager::was_released(InputKey key) {
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int key_code = get_key_code(key);
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if (key_code != -1) {
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bool current = glfwGetKey(window, key_code) == GLFW_PRESS;
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bool previous = previous_key_states[key_code];
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return !current && previous;
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}
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int button = get_mouse_button_code(key);
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if (button != -1) {
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bool current = glfwGetMouseButton(window, button) == GLFW_PRESS;
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bool previous = previous_mouse_button_states[button];
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return !current && previous;
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}
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return false;
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}
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Vec2 InputManager::get_mouse_position() {
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double x, y;
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glfwGetCursorPos(window, &x, &y);
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return Vec2(static_cast<float>(x), static_cast<float>(y));
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}
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Vec2 InputManager::get_mouse_delta() {
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Vec2 current = get_mouse_position();
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Vec2 delta = current - last_mouse_position;
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last_mouse_position = current;
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return delta;
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}
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Vec2 InputManager::get_scroll_delta() {
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Vec2 delta = scroll_delta;
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scroll_delta = Vec2(0.0f, 0.0f);
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return delta;
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}
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void InputManager::update() {
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for (int key = 0; key < 400; ++key) {
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previous_key_states[key] = (glfwGetKey(window, key) == GLFW_PRESS);
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}
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for (int button = 0; button < 8; ++button) {
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previous_mouse_button_states[button] = (glfwGetMouseButton(window, button) == GLFW_PRESS);
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}
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}
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