+ f32 x = pos_dist.X - WIELDMESH_OFFSET_X;
+ f32 y = pos_dist.Y - WIELDMESH_OFFSET_Y;
+
+ f32 x_abs = std::fabs(x);
+ f32 y_abs = std::fabs(y);
+
+ if (x_abs >= y_abs) {
+ y *= (1.0f / x_abs);
+ x /= x_abs;
+ }
+
+ if (y_abs >= x_abs) {
+ x *= (1.0f / y_abs);
+ y /= y_abs;
+ }
+
+ return v2f(std::fabs(x), std::fabs(y));
+}
+
+void Camera::addArmInertia(f32 player_yaw)
+{
+ m_cam_vel.X = std::fabs(rangelim(m_last_cam_pos.X - player_yaw,
+ -100.0f, 100.0f) / 0.016f) * 0.01f;
+ m_cam_vel.Y = std::fabs((m_last_cam_pos.Y - m_camera_direction.Y) / 0.016f);
+ f32 gap_X = std::fabs(WIELDMESH_OFFSET_X - m_wieldmesh_offset.X);
+ f32 gap_Y = std::fabs(WIELDMESH_OFFSET_Y - m_wieldmesh_offset.Y);
+
+ if (m_cam_vel.X > 1.0f || m_cam_vel.Y > 1.0f) {
+ /*
+ The arm moves relative to the camera speed,
+ with an acceleration factor.
+ */
+
+ if (m_cam_vel.X > 1.0f) {
+ if (m_cam_vel.X > m_cam_vel_old.X)
+ m_cam_vel_old.X = m_cam_vel.X;
+
+ f32 acc_X = 0.12f * (m_cam_vel.X - (gap_X * 0.1f));
+ m_wieldmesh_offset.X += m_last_cam_pos.X < player_yaw ? acc_X : -acc_X;
+
+ if (m_last_cam_pos.X != player_yaw)
+ m_last_cam_pos.X = player_yaw;
+
+ m_wieldmesh_offset.X = rangelim(m_wieldmesh_offset.X,
+ WIELDMESH_OFFSET_X - 7.0f, WIELDMESH_OFFSET_X + 7.0f);
+ }
+
+ if (m_cam_vel.Y > 1.0f) {
+ if (m_cam_vel.Y > m_cam_vel_old.Y)
+ m_cam_vel_old.Y = m_cam_vel.Y;
+
+ f32 acc_Y = 0.12f * (m_cam_vel.Y - (gap_Y * 0.1f));
+ m_wieldmesh_offset.Y +=
+ m_last_cam_pos.Y > m_camera_direction.Y ? acc_Y : -acc_Y;
+
+ if (m_last_cam_pos.Y != m_camera_direction.Y)
+ m_last_cam_pos.Y = m_camera_direction.Y;
+
+ m_wieldmesh_offset.Y = rangelim(m_wieldmesh_offset.Y,
+ WIELDMESH_OFFSET_Y - 10.0f, WIELDMESH_OFFSET_Y + 5.0f);
+ }
+
+ m_arm_dir = dir(m_wieldmesh_offset);
+ } else {
+ /*
+ Now the arm gets back to its default position when the camera stops,
+ following a vector, with a smooth deceleration factor.
+ */
+
+ f32 dec_X = 0.12f * (m_cam_vel_old.X * (1.0f +
+ (1.0f - m_arm_dir.X))) * (gap_X / 20.0f);
+
+ f32 dec_Y = 0.06f * (m_cam_vel_old.Y * (1.0f +
+ (1.0f - m_arm_dir.Y))) * (gap_Y / 15.0f);
+
+ if (gap_X < 0.1f)
+ m_cam_vel_old.X = 0.0f;
+
+ m_wieldmesh_offset.X -=
+ m_wieldmesh_offset.X > WIELDMESH_OFFSET_X ? dec_X : -dec_X;
+
+ if (gap_Y < 0.1f)
+ m_cam_vel_old.Y = 0.0f;
+
+ m_wieldmesh_offset.Y -=
+ m_wieldmesh_offset.Y > WIELDMESH_OFFSET_Y ? dec_Y : -dec_Y;
+ }
+}
+
+void Camera::update(LocalPlayer* player, f32 frametime, f32 busytime, f32 tool_reload_ratio)
+{
+ // Get player position
+ // Smooth the movement when walking up stairs
+ v3f old_player_position = m_playernode->getPosition();
+ v3f player_position = player->getPosition();
+ if (player->isAttached && player->parent)
+ player_position = player->parent->getPosition();
+ //if(player->touching_ground && player_position.Y > old_player_position.Y)
+ if(player->touching_ground &&
+ player_position.Y > old_player_position.Y)
+ {
+ f32 oldy = old_player_position.Y;
+ f32 newy = player_position.Y;
+ f32 t = exp(-23*frametime);
+ player_position.Y = oldy * t + newy * (1-t);
+ }
+