mirror of
https://github.com/luanti-org/luanti.git
synced 2025-10-31 15:35:21 +01:00
105 lines
2.7 KiB
C++
105 lines
2.7 KiB
C++
/*
|
|
Minetest
|
|
Copyright (C) 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.
|
|
*/
|
|
|
|
#ifndef COLLISION_HEADER
|
|
#define COLLISION_HEADER
|
|
|
|
#include "irrlichttypes_bloated.h"
|
|
#include <vector>
|
|
|
|
class Map;
|
|
class IGameDef;
|
|
class Environment;
|
|
class ActiveObject;
|
|
|
|
enum CollisionType
|
|
{
|
|
COLLISION_NODE,
|
|
COLLISION_OBJECT,
|
|
};
|
|
|
|
struct CollisionInfo
|
|
{
|
|
enum CollisionType type;
|
|
v3s16 node_p; // COLLISION_NODE
|
|
bool bouncy;
|
|
v3f old_speed;
|
|
v3f new_speed;
|
|
|
|
CollisionInfo():
|
|
type(COLLISION_NODE),
|
|
node_p(-32768,-32768,-32768),
|
|
bouncy(false),
|
|
old_speed(0,0,0),
|
|
new_speed(0,0,0)
|
|
{}
|
|
};
|
|
|
|
struct collisionMoveResult
|
|
{
|
|
bool touching_ground;
|
|
bool collides;
|
|
bool collides_xz;
|
|
bool standing_on_unloaded;
|
|
std::vector<CollisionInfo> collisions;
|
|
|
|
collisionMoveResult():
|
|
touching_ground(false),
|
|
collides(false),
|
|
collides_xz(false),
|
|
standing_on_unloaded(false)
|
|
{}
|
|
};
|
|
|
|
// Moves using a single iteration; speed should not exceed pos_max_d/dtime
|
|
collisionMoveResult collisionMoveSimple(Environment *env,IGameDef *gamedef,
|
|
f32 pos_max_d, const aabb3f &box_0,
|
|
f32 stepheight, f32 dtime,
|
|
v3f &pos_f, v3f &speed_f,
|
|
v3f &accel_f,ActiveObject* self=0,
|
|
bool collideWithObjects=true);
|
|
|
|
#if 0
|
|
// This doesn't seem to work and isn't used
|
|
// Moves using as many iterations as needed
|
|
collisionMoveResult collisionMovePrecise(Map *map, IGameDef *gamedef,
|
|
f32 pos_max_d, const aabb3f &box_0,
|
|
f32 stepheight, f32 dtime,
|
|
v3f &pos_f, v3f &speed_f, v3f &accel_f);
|
|
#endif
|
|
|
|
// Helper function:
|
|
// Checks for collision of a moving aabbox with a static aabbox
|
|
// Returns -1 if no collision, 0 if X collision, 1 if Y collision, 2 if Z collision
|
|
// dtime receives time until first collision, invalid if -1 is returned
|
|
int axisAlignedCollision(
|
|
const aabb3f &staticbox, const aabb3f &movingbox,
|
|
const v3f &speed, f32 d, f32 &dtime);
|
|
|
|
// Helper function:
|
|
// Checks if moving the movingbox up by the given distance would hit a ceiling.
|
|
bool wouldCollideWithCeiling(
|
|
const std::vector<aabb3f> &staticboxes,
|
|
const aabb3f &movingbox,
|
|
f32 y_increase, f32 d);
|
|
|
|
|
|
#endif
|
|
|