/*
=============
CSG_Merge
=============
*/
void CSG_Merge(void)
{
brush_t *b, *next, *newlist, *newbrush;
struct entity_s *owner;
Sys_Printf ("Merging...\n");
if (selected_brushes.next == &selected_brushes)
{
Sys_Printf ("No brushes selected.\n");
return;
}
if (selected_brushes.next->next == &selected_brushes)
{
Sys_Printf ("At least two brushes have to be selected.\n");
return;
}
owner = selected_brushes.next->owner;
for (b = selected_brushes.next; b != &selected_brushes; b = next)
{
next = b->next;
if (b->owner->eclass->fixedsize)
{
// can't use texture from a fixed entity, so don't subtract
Sys_Printf ("Cannot add fixed size entities.\n");
return;
}
if (b->owner != owner)
{
Sys_Printf ("Cannot add brushes from different entities.\n");
return;
}
}
newlist = NULL;
for (b = selected_brushes.next; b != &selected_brushes; b = next)
{
next = b->next;
Brush_RemoveFromList(b);
b->next = newlist;
b->prev = NULL;
newlist = b;
}
newbrush = Brush_MergeList(newlist, true);
// if the new brush would not be convex
if (!newbrush)
{
// add the brushes back into the selection
for (b = newlist; b; b = next)
{
next = b->next;
b->next = NULL;
b->prev = NULL;
Brush_AddToList(b, &selected_brushes);
}
Sys_Printf ("Cannot add a set of brushes with a concave hull.\n");
return;
}
// free the original brushes
for (b = newlist; b; b = next)
{
next = b->next;
b->next = NULL;
b->prev = NULL;
Brush_Free(b);
}
Brush_AddToList(newbrush, &selected_brushes);
Sys_Printf ("Done.\n");
Sys_UpdateWindows (W_ALL);
}
/*
=============
CSG_Merge
=============
*/
void CSG_Merge(void)
{
brush_t *b, *next, *newlist, *newbrush;
entity_t *owner;
Sys_Status("Merging...\n");
if (selected_brushes.next == &selected_brushes)
{
Sys_Status("No brushes selected.\n");
return;
}
if (selected_brushes.next->next == &selected_brushes)
{
Sys_Status("At least two brushes have to be selected.\n");
return;
}
owner = selected_brushes.next->owner;
for (b = selected_brushes.next; b != &selected_brushes; b = next)
{
next = b->next;
if (b->owner->eclass->fixedsize || b->modelHandle > 0)
{
// can't use texture from a fixed entity, so don't subtract
Sys_Status("Cannot add fixed size entities.\n");
return;
}
if (b->pPatch)
{
Sys_Status("Cannot add patches.\n");
return;
}
if ( b->brush_faces->d_texture && ( b->brush_faces->d_texture->GetContentFlags() & CONTENTS_NOCSG ) )
{
Sys_Status("Cannot add brushes using shaders that don't allows CSG operations.\n");
return;
}
if (b->owner != owner)
{
Sys_Status("Cannot add brushes from different entities.\n");
return;
}
}
newlist = NULL;
for (b = selected_brushes.next; b != &selected_brushes; b = next)
{
next = b->next;
Brush_RemoveFromList(b);
b->next = newlist;
b->prev = NULL;
newlist = b;
}
newbrush = Brush_MergeList(newlist, true);
// if the new brush would not be convex
if (!newbrush)
{
// add the brushes back into the selection
for (b = newlist; b; b = next)
{
next = b->next;
b->next = NULL;
b->prev = NULL;
Brush_AddToList(b, &selected_brushes);
}
Sys_Status("Cannot add a set of brushes with a concave hull.\n");
return;
}
// free the original brushes
for (b = newlist; b; b = next)
{
next = b->next;
b->next = NULL;
b->prev = NULL;
Brush_Free(b);
}
Brush_AddToList(newbrush, &selected_brushes);
Sys_Status ("done.\n");
Sys_UpdateWindows (W_ALL);
}
