qboolean SV_MoveTest( edict_t *ent, vec3_t move, qboolean relink )
{
float temp;
vec3_t oldorg, neworg, end;
trace_t trace;
VectorCopy( ent->v.origin, oldorg );
VectorAdd( ent->v.origin, move, neworg );
temp = svgame.movevars.stepsize;
neworg[2] += temp;
VectorCopy( neworg, end );
end[2] -= temp * 2.0f;
trace = SV_MoveNoEnts( neworg, ent->v.mins, ent->v.maxs, end, MOVE_NORMAL, ent );
if( trace.allsolid != 0 )
return 0;
if( trace.startsolid != 0 )
{
neworg[2] -= temp;
trace = SV_MoveNoEnts( neworg, ent->v.mins, ent->v.maxs, end, MOVE_NORMAL, ent );
if( trace.allsolid != 0 || trace.startsolid != 0 )
return 0;
}
if( trace.fraction == 1.0f )
{
if( ent->v.flags & FL_PARTIALGROUND )
{
VectorAdd( ent->v.origin, move, ent->v.origin );
if( relink ) SV_LinkEdict( ent, true );
ent->v.flags &= ~FL_ONGROUND;
return 1;
}
return 0;
}
else
{
VectorCopy( trace.endpos, ent->v.origin );
if( SV_CheckBottom( ent, WALKMOVE_WORLDONLY ) == 0 )
{
if( ent->v.flags & FL_PARTIALGROUND )
{
if( relink ) SV_LinkEdict( ent, true );
return 1;
}
VectorCopy( oldorg, ent->v.origin );
return 0;
}
else
{
ent->v.flags &= ~FL_PARTIALGROUND;
ent->v.groundentity = trace.ent;
if( relink ) SV_LinkEdict( ent, true );
return 1;
}
}
}
qboolean SV_movetest(edict_t *ent, vec3_t move, qboolean relink) {
float temp;
vec3_t oldorg, neworg, end;
trace_t trace;
oldorg[0] = ent->v.origin[0];
oldorg[1] = ent->v.origin[1];
oldorg[2] = ent->v.origin[2];
neworg[0] = ent->v.origin[0] + move[0];
neworg[1] = ent->v.origin[1] + move[1];
neworg[2] = ent->v.origin[2] + move[2];
temp = cvar_sv_stepsize.value;
neworg[2] += temp;
end[0] = neworg[0];
end[1] = neworg[1];
end[2] = neworg[2];
end[2] -= temp*2;
trace = SV_MoveNoEnts(neworg, ent->v.mins, ent->v.maxs, end, 0, ent);
if(trace.allsolid != 0) { return(0); }
if(trace.startsolid != 0) {
neworg[2] -= temp;
trace = SV_MoveNoEnts(neworg, ent->v.mins, ent->v.maxs, end, 0, ent);
if(trace.allsolid != 0 || trace.startsolid != 0) { return(0); }
}
if(trace.fraction == 1) {
if(ent->v.flags & FL_PARTIALGROUND) {
ent->v.origin[0] += move[0];
ent->v.origin[1] += move[1];
ent->v.origin[2] += move[2];
if(relink != 0) {
SV_LinkEdict(ent, 1);
}
ent->v.flags &= ~FL_ONGROUND;
return(1);
}
return(0);
}
else {
ent->v.origin[0] = trace.endpos[0];
ent->v.origin[1] = trace.endpos[1];
ent->v.origin[2] = trace.endpos[2];
if(SV_CheckBottom(ent) == 0) {
if(ent->v.flags & FL_PARTIALGROUND) {
if(relink != 0) {
SV_LinkEdict(ent, 1);
}
return(1);
}
ent->v.origin[0] = oldorg[0];
ent->v.origin[1] = oldorg[1];
ent->v.origin[2] = oldorg[2];
return(0);
}
else {
if(ent->v.flags & FL_PARTIALGROUND) {
ent->v.flags &= ~FL_PARTIALGROUND;
}
ent->v.groundentity = trace.pHit;
if(relink != 0) {
SV_LinkEdict(ent, 1);
}
return(1);
}
}
}
/*
=============
SV_CheckBottom
Returns false if any part of the bottom of the entity is off an edge that
is not a staircase.
=============
*/
qboolean SV_CheckBottom( edict_t *ent, int iMode )
{
vec3_t mins, maxs, start, stop;
float mid, bottom;
trace_t trace;
int x, y;
VectorAdd( ent->v.origin, ent->v.mins, mins );
VectorAdd( ent->v.origin, ent->v.maxs, maxs );
// if all of the points under the corners are solid world, don't bother
// with the tougher checks
// the corners must be within 16 of the midpoint
start[2] = mins[2] - 1.0f;
for( x = 0; x <= 1; x++ )
{
for( y = 0; y <= 1; y++ )
{
start[0] = x ? maxs[0] : mins[0];
start[1] = y ? maxs[1] : mins[1];
svs.groupmask = ent->v.groupinfo;
if( SV_PointContents( start ) != CONTENTS_SOLID )
goto realcheck;
}
}
return true; // we got out easy
realcheck:
// check it for real...
start[2] = mins[2] + svgame.movevars.stepsize;
// the midpoint must be within 16 of the bottom
start[0] = stop[0] = (mins[0] + maxs[0]) * 0.5f;
start[1] = stop[1] = (mins[1] + maxs[1]) * 0.5f;
stop[2] = start[2] - 2.0f * svgame.movevars.stepsize;
if( iMode == WALKMOVE_WORLDONLY )
trace = SV_MoveNoEnts( start, vec3_origin, vec3_origin, stop, MOVE_NORMAL, ent );
else trace = SV_Move( start, vec3_origin, vec3_origin, stop, MOVE_NORMAL, ent );
if( trace.fraction == 1.0f )
return false;
mid = bottom = trace.endpos[2];
// the corners must be within 16 of the midpoint
for( x = 0; x <= 1; x++ )
{
for( y = 0; y <= 1; y++ )
{
start[0] = stop[0] = x ? maxs[0] : mins[0];
start[1] = stop[1] = y ? maxs[1] : mins[1];
if( iMode == WALKMOVE_WORLDONLY )
trace = SV_MoveNoEnts( start, vec3_origin, vec3_origin, stop, MOVE_NORMAL, ent );
else trace = SV_Move( start, vec3_origin, vec3_origin, stop, MOVE_NORMAL, ent );
if( trace.fraction != 1.0f && trace.endpos[2] > bottom )
bottom = trace.endpos[2];
if( trace.fraction == 1.0f || mid - trace.endpos[2] > svgame.movevars.stepsize )
return false;
}
}
return true;
}
