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added sneaking/crouching and changelog

This commit is contained in:
Perttu Ahola 2011-02-14 02:54:15 +02:00
parent 0947c4cc48
commit 14fafc7217
8 changed files with 318 additions and 113 deletions
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7
doc/changelog.txt Normal file
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@ -0,0 +1,7 @@
Minetest-c55 changelog
----------------------
2011-02-14:
- Created changelog.txt
- Added sneaking/crouching

11
src/environment.cpp
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@ -67,10 +67,15 @@ void Environment::step(float dtime)
}
//playerspeed.stop();
/*
Maximum position increment
*/
//f32 position_max_increment = 0.05*BS;
f32 position_max_increment = 0.1*BS;
// Maximum time increment (for collision detection etc)
// Allow 0.1 blocks per increment
// time = distance / speed
f32 dtime_max_increment = 0.1*BS / maximum_player_speed;
f32 dtime_max_increment = position_max_increment / maximum_player_speed;
// Maximum time increment is 10ms or lower
if(dtime_max_increment > 0.01)
dtime_max_increment = 0.01;
@ -137,7 +142,7 @@ void Environment::step(float dtime)
Move the player.
For local player, this also calculates collision detection.
*/
player->move(dtime_part, *m_map);
player->move(dtime_part, *m_map, position_max_increment);
/*
Update lighting on remote players on client

1
src/guiPauseMenu.cpp
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@ -116,6 +116,7 @@ void GUIPauseMenu::regenerateGui(v2u32 screensize)
L"- Mouse right: place blocks\n"
L"- Mouse wheel: select item\n"
L"- 0...9: select item\n"
L"- Shift: sneak\n"
L"- R: Toggle viewing all loaded chunks\n"
L"- I: Inventory menu\n"
L"- ESC: This menu\n"

4
src/main.cpp
View File

@ -78,6 +78,7 @@ SUGG: Split MapBlockObject serialization to to-client and to-disk
SUGG: MovingObject::move and Player::move are basically the same.
combine them.
- NOTE: Player::move is more up-to-date.
SUGG: Precalculate lighting translation table at runtime (at startup)
- This is not doable because it is currently hand-made and not
@ -2261,6 +2262,7 @@ int main(int argc, char *argv[])
bool a_right,
bool a_jump,
bool a_superspeed,
bool a_sneak,
float a_pitch,
float a_yaw*/
PlayerControl control(
@ -2270,6 +2272,8 @@ int main(int argc, char *argv[])
g_input->isKeyDown(irr::KEY_KEY_D),
g_input->isKeyDown(irr::KEY_SPACE),
g_input->isKeyDown(irr::KEY_KEY_E),
g_input->isKeyDown(irr::KEY_LSHIFT)
|| g_input->isKeyDown(irr::KEY_RSHIFT),
camera_pitch,
camera_yaw
);

3
src/map.cpp
View File

@ -4479,6 +4479,9 @@ MapBlock * ServerMap::emergeBlock(
{
dstream<<"emergeBlock: emergeSector() failed: "
<<e.what()<<std::endl;
dstream<<"Path to failed sector: "<<getSectorDir(p2d)
<<std::endl
<<"You could try to delete it."<<std::endl;
throw e;
}

252
src/player.cpp
View File

@ -235,7 +235,7 @@ void RemotePlayer::updateName(const char *name)
}
}
void RemotePlayer::move(f32 dtime, Map &map)
void RemotePlayer::move(f32 dtime, Map &map, f32 pos_max_d)
{
m_pos_animation_time_counter += dtime;
m_pos_animation_counter += dtime;
@ -259,7 +259,8 @@ void RemotePlayer::move(f32 dtime, Map &map)
LocalPlayer
*/
LocalPlayer::LocalPlayer()
LocalPlayer::LocalPlayer():
m_last_walked_node(32767,32767,32767)
{
}
@ -267,7 +268,7 @@ LocalPlayer::~LocalPlayer()
{
}
void LocalPlayer::move(f32 dtime, Map &map)
void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d)
{
v3f position = getPosition();
v3f oldpos = position;
@ -276,13 +277,14 @@ void LocalPlayer::move(f32 dtime, Map &map)
/*std::cout<<"oldpos_i=("<<oldpos_i.X<<","<<oldpos_i.Y<<","
<<oldpos_i.Z<<")"<<std::endl;*/
/*
Calculate new position
*/
position += m_speed * dtime;
// Skip collision detection if a special movement mode is used
bool free_move = g_settings.getBool("free_move");
// Skip collision detection if player is non-local or
// a special movement mode is used
if(isLocal() == false || free_move)
if(free_move)
{
setPosition(position);
return;
@ -292,20 +294,23 @@ void LocalPlayer::move(f32 dtime, Map &map)
Collision detection
*/
// Player position in nodes
v3s16 pos_i = floatToInt(position);
/*
Check if player is in water (the oscillating value)
*/
try{
// If in water, the threshold of coming out is at higher y
if(in_water)
{
v3s16 pp = floatToInt(position + v3f(0,0,0));
v3s16 pp = floatToInt(position + v3f(0,BS*0.1,0));
in_water = content_liquid(map.getNode(pp).d);
}
// If not in water, the threshold of going in is at lower y
else
{
v3s16 pp = floatToInt(position + v3f(0,BS/2,0));
v3s16 pp = floatToInt(position + v3f(0,BS*0.5,0));
in_water = content_liquid(map.getNode(pp).d);
}
}
@ -326,31 +331,76 @@ void LocalPlayer::move(f32 dtime, Map &map)
in_water_stable = false;
}
// The frame length is limited to the player going 0.1*BS per call
f32 d = (float)BS * 0.15;
/*
Collision uncertainty radius
Make it a bit larger than the maximum distance of movement
*/
//f32 d = pos_max_d * 1.1;
// A fairly large value in here makes moving much smoother
f32 d = 0.15*BS;
#define PLAYER_RADIUS (BS*0.3)
#define PLAYER_HEIGHT (BS*1.7)
// This should always apply, otherwise there are glitches
assert(d > pos_max_d);
float player_radius = BS*0.35;
float player_height = BS*1.7;
// Maximum distance over border for sneaking
f32 sneak_max = BS*0.4;
/*
If sneaking, player has larger collision radius to keep from
falling
*/
/*if(control.sneak)
player_radius = sneak_max + d*1.1;*/
/*
If sneaking, keep in range from the last walked node and don't
fall off from it
*/
if(control.sneak)
{
f32 maxd = 0.5*BS + sneak_max;
v3f lwn_f = intToFloat(m_last_walked_node);
position.X = rangelim(position.X, lwn_f.X-maxd, lwn_f.X+maxd);
position.Z = rangelim(position.Z, lwn_f.Z-maxd, lwn_f.Z+maxd);
f32 min_y = lwn_f.Y + 0.5*BS;
if(position.Y < min_y)
{
position.Y = min_y;
if(m_speed.Y < 0)
m_speed.Y = 0;
}
}
/*
Calculate player collision box (new and old)
*/
core::aabbox3d<f32> playerbox(
position.X - PLAYER_RADIUS,
position.X - player_radius,
position.Y - 0.0,
position.Z - PLAYER_RADIUS,
position.X + PLAYER_RADIUS,
position.Y + PLAYER_HEIGHT,
position.Z + PLAYER_RADIUS
position.Z - player_radius,
position.X + player_radius,
position.Y + player_height,
position.Z + player_radius
);
core::aabbox3d<f32> playerbox_old(
oldpos.X - PLAYER_RADIUS,
oldpos.X - player_radius,
oldpos.Y - 0.0,
oldpos.Z - PLAYER_RADIUS,
oldpos.X + PLAYER_RADIUS,
oldpos.Y + PLAYER_HEIGHT,
oldpos.Z + PLAYER_RADIUS
oldpos.Z - player_radius,
oldpos.X + player_radius,
oldpos.Y + player_height,
oldpos.Z + player_radius
);
//hilightboxes.push_back(playerbox);
/*
If the player's feet touch the topside of any node, this is
set to true.
Player is allowed to jump when this is true.
*/
touching_ground = false;
/*std::cout<<"Checking collisions for ("
@ -359,9 +409,13 @@ void LocalPlayer::move(f32 dtime, Map &map)
<<pos_i.X<<","<<pos_i.Y<<","<<pos_i.Z
<<"):"<<std::endl;*/
for(s16 y = oldpos_i.Y - 1; y <= oldpos_i.Y + 2; y++){
for(s16 z = oldpos_i.Z - 1; z <= oldpos_i.Z + 1; z++){
for(s16 x = oldpos_i.X - 1; x <= oldpos_i.X + 1; x++){
/*
Go through every node around the player
*/
for(s16 y = oldpos_i.Y - 1; y <= oldpos_i.Y + 2; y++)
for(s16 z = oldpos_i.Z - 1; z <= oldpos_i.Z + 1; z++)
for(s16 x = oldpos_i.X - 1; x <= oldpos_i.X + 1; x++)
{
try{
if(content_walkable(map.getNode(v3s16(x,y,z)).d) == false){
continue;
@ -376,9 +430,18 @@ void LocalPlayer::move(f32 dtime, Map &map)
core::aabbox3d<f32> nodebox = Map::getNodeBox(
v3s16(x,y,z));
// See if the player is touching ground
/*
See if the player is touching ground.
Player touches ground if player's minimum Y is near node's
maximum Y and player's X-Z-area overlaps with the node's
X-Z-area.
Use 0.15*BS so that it is easier to get on a node.
*/
if(
fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < d
//fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < d
fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < 0.15*BS
&& nodebox.MaxEdge.X-d > playerbox.MinEdge.X
&& nodebox.MinEdge.X+d < playerbox.MaxEdge.X
&& nodebox.MaxEdge.Z-d > playerbox.MinEdge.Z
@ -387,16 +450,23 @@ void LocalPlayer::move(f32 dtime, Map &map)
touching_ground = true;
}
if(playerbox.intersectsWithBox(nodebox))
{
// If player doesn't intersect with node, ignore node.
if(playerbox.intersectsWithBox(nodebox) == false)
continue;
/*
Go through every axis
*/
v3f dirs[3] = {
v3f(0,0,1), // back
v3f(0,1,0), // top
v3f(1,0,0), // right
v3f(0,0,1), // back-front
v3f(0,1,0), // top-bottom
v3f(1,0,0), // right-left
};
for(u16 i=0; i<3; i++)
{
/*
Calculate values along the axis
*/
f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[i]);
f32 nodemin = nodebox.MinEdge.dotProduct(dirs[i]);
f32 playermax = playerbox.MaxEdge.dotProduct(dirs[i]);
@ -404,14 +474,34 @@ void LocalPlayer::move(f32 dtime, Map &map)
f32 playermax_old = playerbox_old.MaxEdge.dotProduct(dirs[i]);
f32 playermin_old = playerbox_old.MinEdge.dotProduct(dirs[i]);
bool main_edge_collides =
((nodemax > playermin && nodemax <= playermin_old + d
&& m_speed.dotProduct(dirs[i]) < 0)
||
/*
Check collision for the axis.
Collision happens when player is going through a surface.
*/
/*f32 neg_d = d;
f32 pos_d = d;
// Make it easier to get on top of a node
if(i == 1)
neg_d = 0.15*BS;
bool negative_axis_collides =
(nodemax > playermin && nodemax <= playermin_old + neg_d
&& m_speed.dotProduct(dirs[i]) < 0);
bool positive_axis_collides =
(nodemin < playermax && nodemin >= playermax_old - pos_d
&& m_speed.dotProduct(dirs[i]) > 0);*/
bool negative_axis_collides =
(nodemax > playermin && nodemax <= playermin_old + d
&& m_speed.dotProduct(dirs[i]) < 0);
bool positive_axis_collides =
(nodemin < playermax && nodemin >= playermax_old - d
&& m_speed.dotProduct(dirs[i]) > 0));
&& m_speed.dotProduct(dirs[i]) > 0);
bool main_axis_collides =
negative_axis_collides || positive_axis_collides;
bool other_edges_collide = true;
/*
Check overlap of player and node in other axes
*/
bool other_axes_overlap = true;
for(u16 j=0; j<3; j++)
{
if(j == i)
@ -422,12 +512,16 @@ void LocalPlayer::move(f32 dtime, Map &map)
f32 playermin = playerbox.MinEdge.dotProduct(dirs[j]);
if(!(nodemax - d > playermin && nodemin + d < playermax))
{
other_edges_collide = false;
other_axes_overlap = false;
break;
}
}
if(main_edge_collides && other_edges_collide)
/*
If this is a collision, revert the position in the main
direction.
*/
if(other_axes_overlap && main_axis_collides)
{
m_speed -= m_speed.dotProduct(dirs[i]) * dirs[i];
position -= position.dotProduct(dirs[i]) * dirs[i];
@ -435,11 +529,62 @@ void LocalPlayer::move(f32 dtime, Map &map)
}
}
} // if(playerbox.intersectsWithBox(nodebox))
} // for x
} // for z
} // for y
} // xyz
/*
If there is a walkable node directly under the player, save
the position of it.
*/
try{
v3s16 pos_i_bottom = floatToInt(position - v3f(0,BS/2,0));
if(content_walkable(map.getNode(pos_i_bottom).d))
{
m_last_walked_node = pos_i_bottom;
}
}
catch(InvalidPositionException &e)
{
}
/*
Check the neighbors of m_last_walked_node that are closer to
the player. If walkable, set m_last_walked_node to such.
*/
{
v3s16 pos_i_bottom = floatToInt(position - v3f(0,BS/2,0));
v3f lastwalkednode_pf = intToFloat(m_last_walked_node);
v2f lastwalkednode_p2df(lastwalkednode_pf.X, lastwalkednode_pf.Z);
v2f player_p2df(position.X, position.Z);
f32 min_distance_f = player_p2df.getDistanceFrom(lastwalkednode_p2df);
v3s16 new_last_walked_node = m_last_walked_node;
for(s16 x=-1; x<=1; x++)
for(s16 z=-1; z<=1; z++)
{
v3s16 p = m_last_walked_node + v3s16(x,0,z);
v3f pf = intToFloat(p);
v2f node_p2df(pf.X, pf.Z);
f32 distance_f = player_p2df.getDistanceFrom(node_p2df);
if(distance_f > min_distance_f)
continue;
try{
if(content_walkable(map.getNode(p).d) == false)
continue;
}
catch(InvalidPositionException &e)
{
continue;
}
min_distance_f = distance_f;
new_last_walked_node = p;
}
m_last_walked_node = new_last_walked_node;
}
/*
Set new position
*/
setPosition(position);
}
@ -449,10 +594,8 @@ void LocalPlayer::applyControl(float dtime)
swimming_up = false;
// Random constants
#define WALK_ACCELERATION (4.0 * BS)
#define WALKSPEED_MAX (4.0 * BS)
f32 walk_acceleration = WALK_ACCELERATION;
f32 walkspeed_max = WALKSPEED_MAX;
f32 walk_acceleration = 4.0 * BS;
f32 walkspeed_max = 4.0 * BS;
setPitch(control.pitch);
setYaw(control.yaw);
@ -538,6 +681,11 @@ void LocalPlayer::applyControl(float dtime)
else if(touching_ground)
{
v3f speed = getSpeed();
/*
NOTE: The d value in move() affects jump height by
raising the height at which the jump speed is kept
at its starting value
*/
speed.Y = 6.5*BS;
setSpeed(speed);
}
@ -554,7 +702,9 @@ void LocalPlayer::applyControl(float dtime)
// The speed of the player (Y is ignored)
if(superspeed)
speed = speed.normalize() * walkspeed_max * 5;
speed = speed.normalize() * walkspeed_max * 5.0;
else if(control.sneak)
speed = speed.normalize() * walkspeed_max / 3.0;
else
speed = speed.normalize() * walkspeed_max;

14
src/player.h
View File

@ -42,7 +42,7 @@ public:
void resetInventory();
//void move(f32 dtime, Map &map);
virtual void move(f32 dtime, Map &map) = 0;
virtual void move(f32 dtime, Map &map, f32 pos_max_d) = 0;
v3f getSpeed()
{
@ -147,7 +147,7 @@ public:
return false;
}
virtual void move(f32 dtime, Map &map)
virtual void move(f32 dtime, Map &map, f32 pos_max_d)
{
}
@ -240,7 +240,7 @@ public:
}
}
void move(f32 dtime, Map &map);
void move(f32 dtime, Map &map, f32 pos_max_d);
private:
scene::IMeshSceneNode *m_node;
@ -267,6 +267,7 @@ struct PlayerControl
right = false;
jump = false;
aux1 = false;
sneak = false;
pitch = 0;
yaw = 0;
}
@ -277,6 +278,7 @@ struct PlayerControl
bool a_right,
bool a_jump,
bool a_aux1,
bool a_sneak,
float a_pitch,
float a_yaw
)
@ -287,6 +289,7 @@ struct PlayerControl
right = a_right;
jump = a_jump;
aux1 = a_aux1;
sneak = a_sneak;
pitch = a_pitch;
yaw = a_yaw;
}
@ -296,6 +299,7 @@ struct PlayerControl
bool right;
bool jump;
bool aux1;
bool sneak;
float pitch;
float yaw;
};
@ -311,13 +315,15 @@ public:
return true;
}
void move(f32 dtime, Map &map);
void move(f32 dtime, Map &map, f32 pos_max_d);
void applyControl(float dtime);
PlayerControl control;
private:
// This is used for determining the sneaking range
v3s16 m_last_walked_node;
};
#endif // !SERVER

31
src/voxel.h
View File

@ -30,7 +30,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#undef max
/*
A fast voxel manipulator class
A fast voxel manipulator class.
In normal operation, it fetches more map when it is requested.
It can also be used so that all allowed area is fetched at the
start, using ManualMapVoxelManipulator.
Not thread-safe.
*/
@ -402,6 +406,31 @@ public:
return m_data[m_area.index(p)];
}*/
/*
Set stuff if available without an emerge.
Return false if failed.
This is convenient but slower than playing around directly
with the m_data table with indices.
*/
bool setNodeNoEmerge(v3s16 p, MapNode n)
{
if(m_area.contains(p) == false)
return false;
m_data[m_area.index(p)] = n;
}
bool setNodeNoEmerge(s32 i, MapNode n)
{
if(m_area.contains(i) == false)
return false;
m_data[i] = n;
}
/*bool setContentNoEmerge(v3s16 p, u8 c)
{
if(isValidPosition(p) == false)
return false;
m_data[m_area.index(p)].d = c;
}*/
/*
Control
*/