From ae66d611f2020e0fddb45f40af2d42c13e7ba585 Mon Sep 17 00:00:00 2001
From: Kahrl <kahrl@gmx.net>
Date: Sun, 18 Sep 2011 02:17:39 +0200
Subject: This looks more like MC view bobbing, but still not even close
---
src/camera.cpp | 50 ++++++++++++++++++++++++++++----------------------
src/camera.h | 4 ++--
2 files changed, 30 insertions(+), 24 deletions(-)
(limited to 'src')
diff --git a/src/camera.cpp b/src/camera.cpp
index 2cc27fd6e..0c6fe1df5 100644
--- a/src/camera.cpp
+++ b/src/camera.cpp
@@ -53,7 +53,7 @@ Camera::Camera(scene::ISceneManager* smgr, MapDrawControl& draw_control):
m_view_bobbing_anim(0),
m_view_bobbing_state(0),
- m_view_bobbing_slow(false)
+ m_view_bobbing_speed(0)
{
//dstream<<__FUNCTION_NAME<<std::endl;
@@ -95,8 +95,7 @@ void Camera::step(f32 dtime)
{
if (m_view_bobbing_state != 0)
{
- f32 bobspeed = (m_view_bobbing_slow ? (BOBFRAMES / 4) : BOBFRAMES);
- s32 offset = MYMAX(dtime * bobspeed, 1);
+ s32 offset = MYMAX(dtime * m_view_bobbing_speed * 0.035 * BOBFRAMES, 1);
if (m_view_bobbing_state == 2)
{
// Animation is getting turned off
@@ -123,35 +122,36 @@ void Camera::update(LocalPlayer* player, f32 frametime, v2u32 screensize)
m_headnode->setRotation(v3f(player->getPitch(), 0, 0));
// Compute relative camera position and target
- 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;
+ v3f rel_cam_pos = v3f(0,0,0);
+ v3f rel_cam_target = v3f(0,0,1);
- if ((m_view_bobbing_anim & (BOBFRAMES/2-1)) != 0)
+ s32 bobframe = m_view_bobbing_anim & (BOBFRAMES/2-1);
+ if (bobframe != 0)
{
- f32 bobamount = cos(player->getPitch() * PI / 180);
- bobamount = 2 * MYMIN(bobamount, 0.5);
+ f32 bobfrac = (f32) bobframe / (BOBFRAMES/2);
+ f32 bobdir = (m_view_bobbing_anim < (BOBFRAMES/2)) ? 1.0 : -1.0;
- f32 bobangle = m_view_bobbing_anim * 2 * PI / BOBFRAMES;
- f32 bobangle_s = sin(bobangle);
- f32 bobangle_c = cos(bobangle);
- f32 bobwidth = 0.02 * bobamount / (bobangle_c * bobangle_c + 1);
- f32 bobheight = 1.5 * bobwidth;
+ f32 bobknob = 1.2;
+ f32 bobtmp = sin(pow(bobfrac, bobknob) * PI);
- relative_cam_pos.X += bobwidth * bobangle_s;
- relative_cam_pos.Y += bobheight * bobangle_s * bobangle_c;
+ v3f bobvec = v3f(
+ 0.01 * bobdir * sin(bobfrac * PI),
+ 0.005 * bobtmp * bobtmp,
+ 0.);
+
+ rel_cam_pos += bobvec * 3.;
+ rel_cam_target += bobvec * 1.5;
}
// Compute absolute camera position and target
- m_playernode->getAbsoluteTransformation().transformVect(m_camera_position, relative_cam_pos);
- m_playernode->getAbsoluteTransformation().transformVect(m_camera_direction, relative_cam_target);
+ m_headnode->getAbsoluteTransformation().transformVect(m_camera_position, rel_cam_pos);
+ m_headnode->getAbsoluteTransformation().transformVect(m_camera_direction, rel_cam_target);
m_camera_direction -= m_camera_position;
// Set camera node transformation
m_cameranode->setPosition(m_camera_position);
- // *100.0 helps in large map coordinates
- m_cameranode->setTarget(m_camera_position + 100.0 * m_camera_direction);
+ m_cameranode->setTarget(m_camera_position + 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));
@@ -175,13 +175,19 @@ void Camera::update(LocalPlayer* player, f32 frametime, v2u32 screensize)
{
// Start animation
m_view_bobbing_state = 1;
+ m_view_bobbing_speed = MYMIN(speed.getLength(), 40);
}
else if (m_view_bobbing_state == 1)
{
// Stop animation
m_view_bobbing_state = 2;
+ m_view_bobbing_speed = 100;
+ }
+ else if (m_view_bobbing_state == 2 && bobframe == 0)
+ {
+ // Stop animation completed
+ m_view_bobbing_state = 0;
}
- m_view_bobbing_slow = player->in_water_stable;
}
void Camera::updateViewingRange(f32 frametime_in)
diff --git a/src/camera.h b/src/camera.h
index a6dd7476f..dd9f30551 100644
--- a/src/camera.h
+++ b/src/camera.h
@@ -147,8 +147,8 @@ private:
// If 1, view bobbing is on (player is walking).
// If 2, view bobbing is getting switched off.
s32 m_view_bobbing_state;
- // If true, view bobbing is slown down (player is swimming)
- bool m_view_bobbing_slow;
+ // Speed of view bobbing animation
+ f32 m_view_bobbing_speed;
};
#endif
--
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