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feat: input class for abstracting SDL_Input functions

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This commit is contained in:
Amir Adal
2025-10-23 16:35:40 +02:00
parent 7b9858cffa
commit ec7ef40aea
5 changed files with 71 additions and 23 deletions
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37
sandbox/src/main.cpp
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@ -20,6 +20,7 @@
#include "engine/components/batch.h"
#include "engine/scene/scene.h"
#include "engine/input/input.h"
#include "engine/api.h"
@ -84,19 +85,16 @@ public:
m_angle = 3.45f;
m_paused = false;
m_yaw = -90.0f; // looking along -Z initially
m_pitch = 0.0f; // no vertical tilt
}
void OnUpdate(Timestep dt) override {
float mouseXRel, mouseYRel;
SDL_GetRelativeMouseState(&mouseXRel, &mouseYRel);
glm::vec2 mouseRel = Input::GetRelativeMouse();
float sensitivity = 0.1f; // tweak as needed
m_yaw += mouseXRel * sensitivity;
m_pitch -= mouseYRel * sensitivity; // invert Y for typical FPS control
m_yaw += mouseRel.x * sensitivity;
m_pitch -= mouseRel.y * sensitivity; // invert Y for typical FPS control
// clamp pitch to avoid flipping
// if (pitch > 89.0f) pitch = 89.0f;
@ -112,30 +110,24 @@ public:
glm::vec3 velocity(0.f);
const bool* state = SDL_GetKeyboardState(nullptr);
if (state[SDL_SCANCODE_P]) m_paused = !m_paused;
glm::vec3 front = glm::normalize(glm::vec3(cameraViewDirection.x, 0.f, cameraViewDirection.z));
glm::vec3 right = glm::normalize(glm::cross(front, glm::vec3(0.f, 1.f, 0.f)));
if (state[SDL_SCANCODE_W]) velocity += front;
if (state[SDL_SCANCODE_S]) velocity -= front;
if (state[SDL_SCANCODE_A]) velocity -= right;
if (state[SDL_SCANCODE_D]) velocity += right;
if (state[SDL_SCANCODE_SPACE]) velocity.y += 1.f;
if (state[SDL_SCANCODE_LSHIFT]) velocity.y -= 1.f;
if (Input::IsKeyPressed(SDL_SCANCODE_W)) velocity += front;
if (Input::IsKeyPressed(SDL_SCANCODE_S)) velocity -= front;
if (Input::IsKeyPressed(SDL_SCANCODE_A)) velocity -= right;
if (Input::IsKeyPressed(SDL_SCANCODE_D)) velocity += right;
if (Input::IsKeyPressed(SDL_SCANCODE_SPACE)) velocity.y += 1.f;
if (Input::IsKeyPressed(SDL_SCANCODE_LSHIFT)) velocity.y -= 1.f;
auto& camTransform = cameraEntity.GetComponent<transform>();
camTransform.position += velocity * (float)dt * 2.5f; // speed is e.g. 2.5f
camTransform.rotation = cameraViewDirection;
// update rotation
if (!m_paused) {
m_angle += glm::radians(45.0f) * dt; // 72° per second
if (m_angle > glm::two_pi<float>()) {
m_angle -= glm::two_pi<float>(); // keep value small
}
m_angle += glm::radians(45.0f) * dt; // 72° per second
if (m_angle > glm::two_pi<float>()) {
m_angle -= glm::two_pi<float>(); // keep value small
}
// ---- Day-night simulation ----
@ -190,6 +182,7 @@ public:
}
}
private:
// for internal 1-second timer
int m_elapsed;
std::shared_ptr<Scene> m_scene;
@ -203,8 +196,6 @@ private:
float m_dayTime = 0.0f; // accumulates time for day-night cycle
float m_dayLength = 60.0f; // seconds per full day cycle
bool m_paused = false;
float m_yaw = -90.0f; // looking along -Z initially
float m_pitch = 0.0f; // no vertical tilt
};