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Digging animation

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This commit is contained in:
Kahrl 2011-09-20 11:06:16 +02:00
parent eaff4616ad
commit 01f3ae1c50
3 changed files with 85 additions and 35 deletions
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90
src/camera.cpp
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@ -26,13 +26,12 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "tile.h"
#include <cmath>
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_wieldnode(NULL),
m_draw_control(draw_control),
m_viewing_range_min(5.0),
m_viewing_range_max(5.0),
@ -57,7 +56,7 @@ Camera::Camera(scene::ISceneManager* smgr, MapDrawControl& draw_control):
m_view_bobbing_speed(0),
m_digging_anim(0),
m_digging_speed(0)
m_digging_button(-1)
{
//dstream<<__FUNCTION_NAME<<std::endl;
@ -67,7 +66,7 @@ Camera::Camera(scene::ISceneManager* smgr, MapDrawControl& draw_control):
m_headnode = smgr->addEmptySceneNode(m_playernode);
m_cameranode = smgr->addCameraSceneNode(smgr->getRootSceneNode());
m_cameranode->bindTargetAndRotation(true);
m_wieldnode = new ExtrudedSpriteSceneNode(m_headnode, smgr, -1, v3f(1.3, -1, 2), v3f(-20, -100, 20), v3f(1));
m_wieldnode = new ExtrudedSpriteSceneNode(m_headnode, smgr);
updateSettings();
}
@ -93,24 +92,54 @@ bool Camera::successfullyCreated(std::wstring& error_message)
error_message = L"Failed to create the camera scene node";
return false;
}
if (m_wieldnode == NULL)
{
error_message = L"Failed to create the wielded item scene node";
return false;
}
return true;
}
// Returns the fractional part of x
inline f32 my_modf(f32 x)
{
double dummy;
return modf(x, &dummy);
}
void Camera::step(f32 dtime)
{
if (m_view_bobbing_state != 0)
{
s32 offset = MYMAX(dtime * m_view_bobbing_speed * 0.035 * BOBFRAMES, 1);
f32 offset = dtime * m_view_bobbing_speed * 0.035;
if (m_view_bobbing_state == 2)
{
// Animation is getting turned off
s32 subanim = (m_view_bobbing_anim & (BOBFRAMES/2-1));
if (subanim < BOBFRAMES/4)
offset = -1 * MYMIN(offset, subanim);
if (m_view_bobbing_anim < 0.5)
m_view_bobbing_anim -= offset;
else
offset = MYMIN(offset, BOBFRAMES/2 - subanim);
m_view_bobbing_anim += offset;
if (m_view_bobbing_anim <= 0 || m_view_bobbing_anim >= 1)
{
m_view_bobbing_anim = 0;
m_view_bobbing_state = 0;
}
}
else
{
m_view_bobbing_anim = my_modf(m_view_bobbing_anim + offset);
}
}
if (m_digging_button != -1)
{
f32 offset = dtime * 3.5;
m_digging_anim += offset;
if (m_digging_anim >= 1)
{
m_digging_anim = 0;
m_digging_button = -1;
}
m_view_bobbing_anim = (m_view_bobbing_anim + offset) & (BOBFRAMES-1);
}
}
@ -132,11 +161,10 @@ void Camera::update(LocalPlayer* player, f32 frametime, v2u32 screensize)
v3f rel_cam_target = v3f(0,0,1);
v3f rel_cam_up = v3f(0,1,0);
s32 bobframe = m_view_bobbing_anim & (BOBFRAMES/2-1);
if (bobframe != 0)
if (m_view_bobbing_anim != 0)
{
f32 bobfrac = (f32) bobframe / (BOBFRAMES/2);
f32 bobdir = (m_view_bobbing_anim < (BOBFRAMES/2)) ? 1.0 : -1.0;
f32 bobfrac = my_modf(m_view_bobbing_anim * 2);
f32 bobdir = (m_view_bobbing_anim < 0.5) ? 1.0 : -1.0;
#if 1
f32 bobknob = 1.2;
@ -188,6 +216,27 @@ void Camera::update(LocalPlayer* player, f32 frametime, v2u32 screensize)
// Some more allowance that m_viewing_range_max * BS because of active objects etc.
m_cameranode->setFarValue(m_viewing_range_max * BS * 10);
// Position the wielded item
v3f wield_position = v3f(1.3, -1.1, 2);
v3f wield_rotation = v3f(90, -90, -90);
if (m_digging_button != -1)
{
f32 digfrac = m_digging_anim;
wield_position.X -= sin(pow(digfrac, 0.8) * PI);
wield_position.Y += 0.5 * sin(digfrac * 2 * PI);
wield_position.Z += 0.2 * digfrac;
// Euler angles are PURE EVIL, so why not use quaternions?
core::quaternion quat_begin(wield_rotation * core::DEGTORAD);
core::quaternion quat_end(v3f(90, 20, -130) * core::DEGTORAD);
core::quaternion quat_slerp;
quat_slerp.slerp(quat_begin, quat_end, sin(digfrac * PI));
quat_slerp.toEuler(wield_rotation);
wield_rotation *= core::RADTODEG;
}
m_wieldnode->setPosition(wield_position);
m_wieldnode->setRotation(wield_rotation);
// Render distance feedback loop
updateViewingRange(frametime);
@ -208,12 +257,7 @@ void Camera::update(LocalPlayer* player, f32 frametime, v2u32 screensize)
{
// 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_speed = 60;
}
}
@ -378,14 +422,14 @@ void Camera::wield(const InventoryItem* item)
else
{
// Bare hands
dstream << "bare hands" << std::endl;
m_wieldnode->setVisible(false);
}
}
void Camera::setDigging(bool digging)
void Camera::setDigging(s32 button)
{
// TODO
if (m_digging_button == -1)
m_digging_button = button;
}