minetest/src/activeobject.h
2023-12-20 21:21:53 +01:00

207 lines
5.1 KiB
C++

/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include "irr_aabb3d.h"
#include "irr_v3d.h"
#include <quaternion.h>
#include <string>
#include <unordered_map>
enum ActiveObjectType {
ACTIVEOBJECT_TYPE_INVALID = 0,
ACTIVEOBJECT_TYPE_TEST = 1,
// Obsolete stuff
// ACTIVEOBJECT_TYPE_ITEM = 2,
// ACTIVEOBJECT_TYPE_RAT = 3,
// ACTIVEOBJECT_TYPE_OERKKI1 = 4,
// ACTIVEOBJECT_TYPE_FIREFLY = 5,
// ACTIVEOBJECT_TYPE_MOBV2 = 6,
// End obsolete stuff
ACTIVEOBJECT_TYPE_LUAENTITY = 7,
// Special type, not stored as a static object
ACTIVEOBJECT_TYPE_PLAYER = 100,
// Special type, only exists as CAO
ACTIVEOBJECT_TYPE_GENERIC = 101,
};
// Other types are defined in content_object.h
struct ActiveObjectMessage
{
ActiveObjectMessage(u16 id_, bool reliable_=true, const std::string &data_ = "") :
id(id_),
reliable(reliable_),
datastring(data_)
{}
u16 id;
bool reliable;
std::string datastring;
};
enum ActiveObjectCommand {
AO_CMD_SET_PROPERTIES,
AO_CMD_UPDATE_POSITION,
AO_CMD_SET_TEXTURE_MOD,
AO_CMD_SET_SPRITE,
AO_CMD_PUNCHED,
AO_CMD_UPDATE_ARMOR_GROUPS,
AO_CMD_SET_ANIMATION,
AO_CMD_SET_BONE_POSITION,
AO_CMD_ATTACH_TO,
AO_CMD_SET_PHYSICS_OVERRIDE,
AO_CMD_OBSOLETE1,
// ^ UPDATE_NAMETAG_ATTRIBUTES deprecated since 0.4.14, removed in 5.3.0
AO_CMD_SPAWN_INFANT,
AO_CMD_SET_ANIMATION_SPEED
};
struct BoneOverride
{
struct PositionProperty
{
v3f previous;
v3f vector;
bool absolute = false;
f32 interp_timer = 0;
} position;
v3f getPosition(v3f anim_pos) const {
f32 progress = dtime_passed / position.interp_timer;
if (progress > 1.0f || position.interp_timer == 0.0f)
progress = 1.0f;
return position.vector.getInterpolated(position.previous, progress)
+ (position.absolute ? v3f() : anim_pos);
}
struct RotationProperty
{
core::quaternion previous;
core::quaternion next;
bool absolute = false;
f32 interp_timer = 0;
} rotation;
v3f getRotationEulerDeg(v3f anim_rot_euler) const {
core::quaternion rot;
f32 progress = dtime_passed / rotation.interp_timer;
if (progress > 1.0f || rotation.interp_timer == 0.0f)
progress = 1.0f;
rot.slerp(rotation.previous, rotation.next, progress);
if (!rotation.absolute) {
core::quaternion anim_rot(anim_rot_euler * core::DEGTORAD);
rot = rot * anim_rot; // first rotate by anim. bone rot., then rot.
}
v3f rot_euler;
rot.toEuler(rot_euler);
return rot_euler * core::RADTODEG;
}
struct ScaleProperty
{
v3f previous;
v3f vector{1, 1, 1};
bool absolute = false;
f32 interp_timer = 0;
} scale;
v3f getScale(v3f anim_scale) const {
f32 progress = dtime_passed / scale.interp_timer;
if (progress > 1.0f || scale.interp_timer == 0.0f)
progress = 1.0f;
return scale.vector.getInterpolated(scale.previous, progress)
* (scale.absolute ? v3f(1) : anim_scale);
}
f32 dtime_passed = 0;
bool isIdentity() const
{
return !position.absolute && position.vector == v3f()
&& !rotation.absolute && rotation.next == core::quaternion()
&& !scale.absolute && scale.vector == v3f(1);
}
};
typedef std::unordered_map<std::string, BoneOverride> BoneOverrideMap;
/*
Parent class for ServerActiveObject and ClientActiveObject
*/
class ActiveObject
{
public:
ActiveObject(u16 id):
m_id(id)
{
}
u16 getId() const
{
return m_id;
}
void setId(u16 id)
{
m_id = id;
}
virtual ActiveObjectType getType() const = 0;
/*!
* Returns the collision box of the object.
* This box is translated by the object's
* location.
* The box's coordinates are world coordinates.
* @returns true if the object has a collision box.
*/
virtual bool getCollisionBox(aabb3f *toset) const = 0;
/*!
* Returns the selection box of the object.
* This box is not translated when the
* object moves.
* The box's coordinates are world coordinates.
* @returns true if the object has a selection box.
*/
virtual bool getSelectionBox(aabb3f *toset) const = 0;
virtual bool collideWithObjects() const = 0;
virtual void setAttachment(int parent_id, const std::string &bone, v3f position,
v3f rotation, bool force_visible) {}
virtual void getAttachment(int *parent_id, std::string *bone, v3f *position,
v3f *rotation, bool *force_visible) const {}
virtual void clearChildAttachments() {}
virtual void clearParentAttachment() {}
virtual void addAttachmentChild(int child_id) {}
virtual void removeAttachmentChild(int child_id) {}
protected:
u16 m_id; // 0 is invalid, "no id"
};