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Made wielded tool move slightly (and smoothly) during view bobbing. Making the tool be a child node of an empty scene node instead of the camera scene node seemingly fixed the uncontrollable tool jitter, too.

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This commit is contained in:
Kahrl 2011-09-15 00:32:11 +02:00
parent fc92da4324
commit 63266928a5
3 changed files with 43 additions and 17 deletions
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33
src/camera.cpp
View file

@ -30,6 +30,7 @@ const s32 BOBFRAMES = 0x1000000; // must be a power of two
Camera::Camera(scene::ISceneManager* smgr, MapDrawControl& draw_control):
m_smgr(smgr),
m_playernode(NULL),
m_headnode(NULL),
m_cameranode(NULL),
m_draw_control(draw_control),
m_viewing_range_min(5.0),
@ -59,6 +60,7 @@ Camera::Camera(scene::ISceneManager* smgr, MapDrawControl& draw_control):
// note: making the camera node a child of the player node
// would lead to unexpected behaviour, so we don't do that.
m_playernode = smgr->addEmptySceneNode(smgr->getRootSceneNode());
m_headnode = smgr->addEmptySceneNode(m_playernode);
m_cameranode = smgr->addCameraSceneNode(smgr->getRootSceneNode());
m_cameranode->bindTargetAndRotation(true);
@ -69,6 +71,26 @@ Camera::~Camera()
{
}
bool Camera::successfullyCreated(std::wstring& error_message)
{
if (m_playernode == NULL)
{
error_message = L"Failed to create the player scene node";
return false;
}
if (m_headnode == NULL)
{
error_message = L"Failed to create the head scene node";
return false;
}
if (m_cameranode == NULL)
{
error_message = L"Failed to create the camera scene node";
return false;
}
return true;
}
void Camera::step(f32 dtime)
{
if (m_view_bobbing_state != 0)
@ -90,16 +112,18 @@ void Camera::step(f32 dtime)
void Camera::update(LocalPlayer* player, f32 frametime, v2u32 screensize)
{
if (m_playernode == NULL || m_cameranode == NULL)
return;
// Set player node transformation
m_playernode->setPosition(player->getPosition());
m_playernode->setRotation(v3f(0, -1 * player->getYaw(), 0));
m_playernode->updateAbsolutePosition();
// Set head node transformation
v3f eye_offset = player->getEyePosition() - player->getPosition();
m_headnode->setPosition(eye_offset);
m_headnode->setRotation(v3f(player->getPitch(), 0, 0));
// Compute relative camera position and target
v3f relative_cam_pos = player->getEyePosition() - player->getPosition();
v3f relative_cam_pos = eye_offset;
v3f relative_cam_target = v3f(0,0,1);
relative_cam_target.rotateYZBy(player->getPitch());
relative_cam_target += relative_cam_pos;
@ -128,7 +152,6 @@ void Camera::update(LocalPlayer* player, f32 frametime, v2u32 screensize)
m_cameranode->setPosition(m_camera_position);
// *100.0 helps in large map coordinates
m_cameranode->setTarget(m_camera_position + 100.0 * m_camera_direction);
// FOV and and aspect ratio
m_aspect = (f32)screensize.X / (f32) screensize.Y;
m_fov_x = 2 * atan(0.5 * m_aspect * tan(m_fov_y));