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improved simple game

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This commit is contained in:
Orange
2026-02-18 07:33:17 +03:00
parent 1041256fac
commit af36c909a4
3 changed files with 71 additions and 8 deletions
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72
examples/example_glfw3.cpp
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@@ -149,10 +149,13 @@ int main()
// Check if context is valid using standard GL
const GLubyte* renderer = glGetString(GL_RENDERER);
const GLubyte* version = glGetString(GL_VERSION);
if (renderer && version) {
if (renderer && version)
{
std::cout << "Renderer: " << renderer << "\n";
std::cout << "OpenGL version supported: " << version << "\n";
} else {
}
else
{
std::cerr << "Failed to get GL_RENDERER or GL_VERSION. Context might be invalid.\n";
}
@@ -162,11 +165,14 @@ int main()
if (glewErr != GLEW_OK)
{
// Ignore NO_GLX_DISPLAY if we have a valid context
if (glewErr == GLEW_ERROR_NO_GLX_DISPLAY && renderer) {
std::cerr << "GLEW warning: " << glewGetErrorString(glewErr) << " (Ignored because context seems valid)\n";
} else {
if (glewErr == GLEW_ERROR_NO_GLX_DISPLAY && renderer)
{
std::cerr << "GLEW warning: " << glewGetErrorString(glewErr) << " (Ignored because context seems valid)\n";
}
else
{
std::cerr << "Failed to initialize GLEW: " << reinterpret_cast<const char*>(glewGetErrorString(glewErr))
<< "\n";
<< "\n";
glfwTerminate();
return -1;
}
@@ -300,11 +306,65 @@ int main()
static float old_frame_time = glfwGetTime();
float lastX = 640.0f / 2.0f;
float lastY = 480.0f / 2.0f;
bool firstMouse = true;
bool mouse_capture = false;
float mouseSensitivity = 0.1f;
// ---------- Main loop ----------
static double old_mouse_time = glfwGetTime();
while (!glfwWindowShouldClose(window))
{
glfwPollEvents();
omath::Vector3<float> move_dir;
if (glfwGetKey(window, GLFW_KEY_W))
move_dir += camera.get_forward();
if (glfwGetKey(window, GLFW_KEY_A))
move_dir -= camera.get_right();
if (glfwGetKey(window, GLFW_KEY_S))
move_dir -= camera.get_forward();
if (glfwGetKey(window, GLFW_KEY_D))
move_dir += camera.get_right();
if (glfwGetKey(window, GLFW_KEY_SPACE))
move_dir += camera.get_up();
if (glfwGetKey(window, GLFW_KEY_LEFT_CONTROL))
move_dir -= camera.get_up();
auto delta = glfwGetTime() - old_mouse_time;
if (glfwGetMouseButton(window, GLFW_MOUSE_BUTTON_LEFT) && delta > 0.4)
{
old_mouse_time = glfwGetTime();
mouse_capture = !mouse_capture;
glfwSetInputMode(window, GLFW_CURSOR, mouse_capture ? GLFW_CURSOR_CAPTURED : GLFW_CURSOR_NORMAL);
}
if (mouse_capture)
{
int x, y;
glfwGetWindowSize(window, &x, &y);
camera.set_origin(camera.get_origin() + (move_dir.normalized() * 0.4f));
double xpos, ypos;
glfwGetCursorPos(window, &xpos, &ypos);
float xoffset = (float)xpos - x / 2.f;
float yoffset = y / 2.f - ypos ; // reversed: y-coordinates go bottom->top for pitch
xoffset *= mouseSensitivity;
yoffset *= mouseSensitivity;
auto new_angles = camera.get_view_angles();
new_angles.pitch += decltype(new_angles.pitch)::from_degrees(yoffset);
new_angles.yaw -= decltype(new_angles.yaw)::from_degrees(xoffset);
camera.set_view_angles(new_angles);
glfwSetCursorPos(window, x / 2., y / 2);
}
float currentTime = glfwGetTime();
float deltaTime = currentTime - old_frame_time;
old_frame_time = currentTime;