void CG_DoGlass( vec3_t verts[4], vec3_t normal, vec3_t dmgPt, vec3_t dmgDir, float dmgRadius )
{
int i, t;
int mxHeight, mxWidth;
float height, width;
float stepWidth, stepHeight;
float timeDecay;
float x, z;
float xx, zz;
int time = 0;
bool stick = true;
vec3_t subVerts[4];
vec2_t biPoints[4];
// To do a smarter tesselation, we should figure out the relative height and width of the brush face,
// then use this to pick a lod value from 1-3 in each axis. This will give us 1-9 lod levels, which will
// hopefully be sufficient.
CG_CalcHeightWidth( verts, &height, &width );
cgi_S_StartSound( dmgPt, -1, CHAN_AUTO, cgi_S_RegisterSound("sound/effects/glassbreak1.wav"));
// Pick "LOD" for height
if ( height < 100 )
{
stepHeight = 0.2f;
mxHeight = 5;
timeDecay = TIME_DECAY_SLOW;
}
/* else if ( height > 220 ) // was originally mxHeight = 20....but removing this whole section because it causes huge number of chunks...which is bad
{
stepHeight = 0.075f;
mxHeight = 15;
timeDecay = TIME_DECAY_FAST;
}*/
else
{
stepHeight = 0.1f;
mxHeight = 10;
timeDecay = TIME_DECAY_MED;
}
// Pick "LOD" for width
if ( width < 100 )
{
stepWidth = 0.2f;
mxWidth = 5;
timeDecay = ( timeDecay + TIME_DECAY_SLOW ) * 0.5f;
}
/* else if ( width > 220 ) // don't do this because it causes too much chug with large glass panes...especially when more than one pane can be broken at a time
{
stepWidth = 0.075f;
mxWidth = 15;
timeDecay = ( timeDecay + TIME_DECAY_FAST ) * 0.5f;
}*/
else
{
stepWidth = 0.1f;
mxWidth = 10;
timeDecay = ( timeDecay + TIME_DECAY_MED ) * 0.5f;
}
for ( z = 0.0f, i = 0; z < 1.0f; z += stepHeight, i++ )
{
for ( x = 0.0f, t = 0; x < 1.0f; x += stepWidth, t++ )
{
// This is nasty..we do this because we don't want to add a random offset on the edge of the glass brush
// ...but we do in the center, otherwise the breaking scheme looks way too orderly
if ( t > 0 && t < mxWidth )
{
xx = x - offX[i][t];
}
else
{
xx = x;
}
if ( i > 0 && i < mxHeight )
{
zz = z - offZ[t][i];
}
else
{
zz = z;
}
Vector2Set( biPoints[0], xx, zz );
if ( t + 1 > 0 && t + 1 < mxWidth )
{
xx = x - offX[i][t + 1];
}
else
{
xx = x;
}
if ( i > 0 && i < mxHeight )
{
zz = z - offZ[t + 1][i];
}
else
{
zz = z;
}
Vector2Set( biPoints[1], xx + stepWidth, zz );
if ( t + 1 > 0 && t + 1 < mxWidth )
{
xx = x - offX[i + 1][t + 1];
}
else
{
xx = x;
}
if ( i + 1 > 0 && i + 1 < mxHeight )
{
zz = z - offZ[t + 1][i + 1];
}
else
{
zz = z;
}
Vector2Set( biPoints[2], xx + stepWidth, zz + stepHeight);
if ( t > 0 && t < mxWidth )
{
xx = x - offX[i + 1][t];
}
else
{
xx = x;
}
if ( i + 1 > 0 && i + 1 < mxHeight )
{
zz = z - offZ[t][i + 1];
}
else
{
zz = z;
}
Vector2Set( biPoints[3], xx, zz + stepHeight );
CG_CalcBiLerp( verts, subVerts, biPoints );
float dif = DistanceSquared( subVerts[0], dmgPt ) * timeDecay - Q_flrand(0.0f, 1.0f) * 32;
// If we decrease dif, we are increasing the impact area, making it more likely to blow out large holes
dif -= dmgRadius * dmgRadius;
if ( dif > 1 )
{
stick = true;
time = dif + Q_flrand(0.0f, 1.0f) * 200;
}
else
{
stick = false;
time = 0;
}
CG_DoGlassQuad( subVerts, biPoints, stick, time, dmgDir );
}
}
}
void CG_DoGlass( vec3_t verts[4], vec3_t normal, vec3_t dmgPt, vec3_t dmgDir, float dmgRadius, int maxShards )
{
int i, t;
int mxHeight, mxWidth;
float height, width;
float stepWidth, stepHeight;
float timeDecay;
float x, z;
float xx, zz;
float dif;
int time = 0;
int glassShards = 0;
qboolean stick = qtrue;
vec3_t subVerts[4];
vec2_t biPoints[4];
// To do a smarter tesselation, we should figure out the relative height and width of the brush face,
// then use this to pick a lod value from 1-3 in each axis. This will give us 1-9 lod levels, which will
// hopefully be sufficient.
CG_CalcHeightWidth( verts, &height, &width );
trap->S_StartSound( dmgPt, -1, CHAN_AUTO, trap->S_RegisterSound("sound/effects/glassbreak1.wav"));
// Pick "LOD" for height
if ( height < 100 )
{
stepHeight = 0.2f;
mxHeight = 5;
timeDecay = TIME_DECAY_SLOW;
}
else if ( height > 220 )
{
stepHeight = 0.05f;
mxHeight = 20;
timeDecay = TIME_DECAY_FAST;
}
else
{
stepHeight = 0.1f;
mxHeight = 10;
timeDecay = TIME_DECAY_MED;
}
// Pick "LOD" for width
/*
if ( width < 100 )
{
stepWidth = 0.2f;
mxWidth = 5;
timeDecay = ( timeDecay + TIME_DECAY_SLOW ) * 0.5f;
}
else if ( width > 220 )
{
stepWidth = 0.05f;
mxWidth = 20;
timeDecay = ( timeDecay + TIME_DECAY_FAST ) * 0.5f;
}
else
{
stepWidth = 0.1f;
mxWidth = 10;
timeDecay = ( timeDecay + TIME_DECAY_MED ) * 0.5f;
}
*/
//Attempt to scale the glass directly to the size of the window
stepWidth = (0.25f - (width*0.0002)); //(width*0.0005));
mxWidth = width*0.2;
timeDecay = ( timeDecay + TIME_DECAY_FAST ) * 0.5f;
if (stepWidth < 0.01f)
{
stepWidth = 0.01f;
}
if (mxWidth < 5)
{
mxWidth = 5;
}
for ( z = 0.0f, i = 0; z < 1.0f; z += stepHeight, i++ )
{
for ( x = 0.0f, t = 0; x < 1.0f; x += stepWidth, t++ )
{
// This is nasty..
if ( t > 0 && t < mxWidth )
{
xx = x - offX[i][t];
}
else
{
xx = x;
}
if ( i > 0 && i < mxHeight )
{
zz = z - offZ[t][i];
}
else
{
zz = z;
}
Vector2Set( biPoints[0], xx, zz );
if ( t + 1 > 0 && t + 1 < mxWidth )
{
xx = x - offX[i][t + 1];
}
else
{
xx = x;
}
if ( i > 0 && i < mxHeight )
{
zz = z - offZ[t + 1][i];
}
else
{
zz = z;
}
Vector2Set( biPoints[1], xx + stepWidth, zz );
if ( t + 1 > 0 && t + 1 < mxWidth )
{
xx = x - offX[i + 1][t + 1];
}
else
{
xx = x;
}
if ( i + 1 > 0 && i + 1 < mxHeight )
{
zz = z - offZ[t + 1][i + 1];
}
else
{
zz = z;
}
Vector2Set( biPoints[2], xx + stepWidth, zz + stepHeight);
if ( t > 0 && t < mxWidth )
{
xx = x - offX[i + 1][t];
}
else
{
xx = x;
}
if ( i + 1 > 0 && i + 1 < mxHeight )
{
zz = z - offZ[t][i + 1];
}
else
{
zz = z;
}
Vector2Set( biPoints[3], xx, zz + stepHeight );
CG_CalcBiLerp( verts, subVerts, biPoints );
dif = DistanceSquared( subVerts[0], dmgPt ) * timeDecay - random() * 32;
// If we decrease dif, we are increasing the impact area, making it more likely to blow out large holes
dif -= dmgRadius * dmgRadius;
if ( dif > 1 )
{
stick = qtrue;
time = dif + random() * 200;
}
else
{
stick = qfalse;
time = 0;
}
CG_DoGlassQuad( subVerts, biPoints, stick, time, dmgDir );
glassShards++;
if (maxShards && glassShards >= maxShards)
{
return;
}
}
}
}
