mirror of https://github.com/TTimo/GtkRadiant.git
387 lines
9.7 KiB
C++
387 lines
9.7 KiB
C++
/*
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Copyright (C) 1999-2007 id Software, Inc. and contributors.
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For a list of contributors, see the accompanying CONTRIBUTORS file.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "stdafx.h"
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//#include "qe3.h"
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#include "winding.h"
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int FindPoint (vec3_t point)
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{
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int i, j;
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for (i=0 ; i<g_qeglobals.d_numpoints ; i++)
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{
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for (j=0 ; j<3 ; j++)
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if (fabs(point[j] - g_qeglobals.d_points[i][j]) > 0.1)
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break;
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if (j == 3)
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return i;
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}
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VectorCopy (point, g_qeglobals.d_points[g_qeglobals.d_numpoints]);
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//qeglobals.d_points[g_qeglobals.d_numpoints] = point;
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if (g_qeglobals.d_numpoints < MAX_POINTS-1)
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{
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g_qeglobals.d_numpoints++;
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}
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return g_qeglobals.d_numpoints-1;
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}
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//#define DBG_WNDG
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int FindEdge (int p1, int p2, face_t *f)
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{
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int i;
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for (i=0 ; i<g_qeglobals.d_numedges ; i++)
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if (g_qeglobals.d_edges[i].p1 == p2 && g_qeglobals.d_edges[i].p2 == p1)
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{
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g_qeglobals.d_edges[i].f2 = f;
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#ifdef DBG_WNDG
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Sys_Printf("g_qeglobals.d_edges[%d].f2 = %p\n", i, f);
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#endif
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return i;
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}
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g_qeglobals.d_edges[g_qeglobals.d_numedges].p1 = p1;
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g_qeglobals.d_edges[g_qeglobals.d_numedges].p2 = p2;
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g_qeglobals.d_edges[g_qeglobals.d_numedges].f1 = f;
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#ifdef DBG_WNDG
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Sys_Printf("g_qeglobals.d_edges[%d].f1 = %p\n", g_qeglobals.d_numedges, f);
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#endif
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if (g_qeglobals.d_numedges < MAX_EDGES-1)
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{
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g_qeglobals.d_numedges++;
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}
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return g_qeglobals.d_numedges-1;
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}
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void MakeFace (brush_t* b, face_t *f)
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{
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winding_t *w;
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int i;
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int pnum[128];
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w = Brush_MakeFaceWinding (b, f);
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if (!w)
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return;
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for (i=0 ; i<w->numpoints ; i++)
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pnum[i] = FindPoint (w->points[i]);
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for (i=0 ; i<w->numpoints ; i++)
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FindEdge (pnum[i], pnum[(i+1)%w->numpoints], f);
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free (w);
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}
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void SetupVertexSelection (void)
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{
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face_t *f;
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brush_t *b;
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g_qeglobals.d_numpoints = 0;
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g_qeglobals.d_numedges = 0;
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for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
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{
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if (b->patchBrush || b->owner->eclass->fixedsize)
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continue; // don't make edge and vertex handles for patchbrushes
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for (f=b->brush_faces ; f ; f=f->next)
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MakeFace (b,f);
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}
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}
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void SelectFaceEdge (brush_t* b, face_t *f, int p1, int p2)
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{
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winding_t *w;
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int i, j, k;
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int pnum[128];
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#ifdef DBG_WNDG
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if (f==NULL)
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Sys_Printf("SelectFaceEdge %p %p\n", b, f);
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#endif
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w = Winding_Clone(f->face_winding);//Brush_MakeFaceWinding (b, f);
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if (!w)
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return;
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for (i=0 ; i<w->numpoints ; i++)
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pnum[i] = FindPoint (w->points[i]);
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for (i=0 ; i<w->numpoints ; i++)
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if (pnum[i] == p1 && pnum[(i+1)%w->numpoints] == p2)
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{
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VectorCopy (g_qeglobals.d_points[pnum[i]], f->planepts[0]);
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VectorCopy (g_qeglobals.d_points[pnum[(i+1)%w->numpoints]], f->planepts[1]);
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VectorCopy (g_qeglobals.d_points[pnum[(i+2)%w->numpoints]], f->planepts[2]);
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for (j=0 ; j<3 ; j++)
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{
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for (k=0 ; k<3 ; k++)
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{
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f->planepts[j][k] = floor(f->planepts[j][k]/g_qeglobals.d_gridsize+0.5)*g_qeglobals.d_gridsize;
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}
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}
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AddPlanept (f->planepts[0]);
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AddPlanept (f->planepts[1]);
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break;
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}
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if (i == w->numpoints)
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Sys_Printf ("SelectFaceEdge: failed\n");
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Winding_Free (w);
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}
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void SelectVertex (int p1)
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{
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brush_t *b;
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winding_t *w;
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int i;
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face_t *f;
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for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
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{
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for (f=b->brush_faces ; f ; f=f->next)
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{
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w = Brush_MakeFaceWinding (b, f);
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if (!w)
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continue;
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for (i=0 ; i<w->numpoints ; i++)
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{
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if (FindPoint (w->points[i]) == p1)
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{
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VectorCopy (w->points[(i+w->numpoints-1)%w->numpoints], f->planepts[0]);
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VectorCopy (w->points[i], f->planepts[1]);
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VectorCopy (w->points[(i+1)%w->numpoints], f->planepts[2]);
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// NOTE: used to be a planepts clamping to grid here
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AddPlanept (f->planepts[1]);
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break;
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}
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}
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free (w);
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}
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}
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}
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#define SELECT_EPSILON 8
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void SelectVertexByRay (vec3_t org, vec3_t dir)
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{
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int i, besti;
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float d, bestd = VEC_MAX;
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vec_t epsilon, divergence;
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ray_t ray;
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ray_construct_for_vec3(&ray, org, dir);
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// find the point closest to the ray
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besti = -1;
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if ((fabs(org[0]) == g_MaxWorldCoord || fabs(org[1]) == g_MaxWorldCoord || fabs(org[2]) == g_MaxWorldCoord)
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&& (fabs(dir[0]) == 1.0f || fabs(dir[1]) == 1.0f || fabs(dir[2]) == 1.0f)) // very unlikely unless 2d view
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{
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divergence = 0;
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epsilon = SELECT_EPSILON / g_pParentWnd->GetXYWnd()->Scale(); // compensate for zoom level
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}
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else
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{
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divergence = SELECT_EPSILON / (g_pParentWnd->GetCamWnd()->Camera()->width*0.5); // radius / focal length
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epsilon = 0;
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}
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for (i=0 ; i<g_qeglobals.d_numpoints ; i++)
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{
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d = ray_intersect_point(&ray, g_qeglobals.d_points[i], epsilon, divergence);
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if (d < bestd)
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{
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bestd = d;
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besti = i;
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}
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}
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if (besti == -1)
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{
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Sys_Printf ("Click didn't hit a vertex\n");
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return;
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}
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Sys_Printf ("hit vertex\n");
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g_qeglobals.d_move_points[g_qeglobals.d_num_move_points++] = g_qeglobals.d_points[besti];
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if (!g_PrefsDlg.m_bVertexSplit)
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{
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SelectVertex (besti);
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}
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}
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// TTimo: NOTE: we should not have to put extern funcs like that
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// those should be defined in qe3.h
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extern void AddPatchMovePoint(vec3_t v, bool bMulti, bool bFull);
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extern int PointInMoveList(float *pf);
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void SelectCurvePointByRay (vec3_t org, vec3_t dir, int buttons)
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{
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int i, j;
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float d, bestd = VEC_MAX;
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vec3_t *pPointBest;
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vec_t epsilon, divergence;
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ray_t ray;
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ray_construct_for_vec3(&ray, org, dir);
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// find the point closest to the ray
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pPointBest = NULL;
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if ((fabs(org[0]) == g_MaxWorldCoord || fabs(org[1]) == g_MaxWorldCoord || fabs(org[2]) == g_MaxWorldCoord)
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&& (fabs(dir[0]) == 1.0f || fabs(dir[1]) == 1.0f || fabs(dir[2]) == 1.0f)) // very unlikely unless 2d view
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{
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divergence = 0;
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epsilon = SELECT_EPSILON / g_pParentWnd->GetXYWnd()->Scale(); // compensate for zoom level
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}
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else
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{
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divergence = SELECT_EPSILON / (g_pParentWnd->GetCamWnd()->Camera()->width*0.5); // radius / focal length
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epsilon = 0;
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}
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g_qeglobals.d_numpoints = 0;
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for (brush_t *pb = selected_brushes.next ; pb != &selected_brushes ; pb = pb->next)
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{
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if (pb->patchBrush)
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{
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patchMesh_t* p = pb->pPatch;
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for (i = 0 ; i < p->width ; i++ )
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{
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for ( j = 0 ; j < p->height ; j++ )
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{
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d = ray_intersect_point(&ray, p->ctrl[i][j].xyz, epsilon, divergence);
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if (d >= bestd)
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continue;
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bestd = d;
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if (PointInMoveList(*pPointBest) != -1 && PointInMoveList(p->ctrl[i][j].xyz) == -1)
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continue; // choose selected points with preference over unselected
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pPointBest = &p->ctrl[i][j].xyz;
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}
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}
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}
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}
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if (pPointBest == NULL)
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{
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if (g_pParentWnd->ActiveXY()->AreaSelectOK())
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{
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g_qeglobals.d_select_mode = sel_area;
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VectorCopy(org, g_qeglobals.d_vAreaTL);
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VectorCopy(org, g_qeglobals.d_vAreaBR);
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}
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return;
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}
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else
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AddPatchMovePoint(pPointBest[0], buttons & MK_CONTROL, buttons & MK_SHIFT);
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}
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// optimization bug:
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// had to use the #define DBG_WNDG to identify
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// the first loop that checks the best edge is broken in release-optimized build
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// unrolled the mid[] loop and forced floating consistency on seems to fix
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#ifdef _WIN32
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#pragma optimize( "p", on )
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#endif
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void SelectEdgeByRay (vec3_t org, vec3_t dir)
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{
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int i, besti;
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float d, bestd = VEC_MAX;
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vec3_t mid;
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pedge_t *e;
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vec_t epsilon, divergence;
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ray_t ray;
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ray_construct_for_vec3(&ray, org, dir);
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// find the edge closest to the ray
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besti = -1;
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if ((fabs(org[0]) == g_MaxWorldCoord || fabs(org[1]) == g_MaxWorldCoord || fabs(org[2]) == g_MaxWorldCoord)
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&& (fabs(dir[0]) == 1.0f || fabs(dir[1]) == 1.0f || fabs(dir[2]) == 1.0f)) // very unlikely unless 2d view
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{
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divergence = 0;
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epsilon = SELECT_EPSILON / g_pParentWnd->GetXYWnd()->Scale(); // compensate for zoom level
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}
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else
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{
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divergence = SELECT_EPSILON / (g_pParentWnd->GetCamWnd()->Camera()->width*0.5); // radius / focal length
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epsilon = 0;
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}
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for (i=0 ; i<g_qeglobals.d_numedges ; i++)
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{
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mid[0] = 0.5f*(g_qeglobals.d_points[g_qeglobals.d_edges[i].p1][0] + g_qeglobals.d_points[g_qeglobals.d_edges[i].p2][0]);
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mid[1] = 0.5f*(g_qeglobals.d_points[g_qeglobals.d_edges[i].p1][1] + g_qeglobals.d_points[g_qeglobals.d_edges[i].p2][1]);
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mid[2] = 0.5f*(g_qeglobals.d_points[g_qeglobals.d_edges[i].p1][2] + g_qeglobals.d_points[g_qeglobals.d_edges[i].p2][2]);
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d = ray_intersect_point(&ray, mid, epsilon, divergence);
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#ifdef DBG_WNDG
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Sys_Printf("d: %f\n", d);
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#endif
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if (d < bestd)
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{
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#ifdef DBG_WNDG
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Sys_Printf("bestd = d\n");
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#endif
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bestd = d;
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besti = i;
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}
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}
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if (besti == -1)
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{
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Sys_Printf ("Click didn't hit an edge\n");
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return;
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}
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Sys_Printf ("Hit edge\n");
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// make the two faces that border the edge use the two edge points
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// as primary drag points
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g_qeglobals.d_num_move_points = 0;
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e = &g_qeglobals.d_edges[besti];
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#ifdef DBG_WNDG
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Sys_Printf("besti: %d\n", besti);
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if (e->f1 == NULL)
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{
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Sys_Printf ("e->f1 == NULL e->f2 %p\n", e->f2);
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}
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if (e->f2 == NULL)
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{
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Sys_Printf ("e->f1 %p e->f2 == NULL\n",e->f1);
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}
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#endif
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for (brush_t* b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
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{
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SelectFaceEdge (b, e->f1, e->p1, e->p2);
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SelectFaceEdge (b, e->f2, e->p2, e->p1);
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}
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}
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