# ##### BEGIN GPL LICENSE BLOCK ##### # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software Foundation, # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. # # ##### END GPL LICENSE BLOCK ##### import bpy import bmesh from mathutils import Vector from bpy_extras.io_utils import create_derived_objects, free_derived_objects # https://developer.valvesoftware.com/wiki/MAP_file_format def fmt3(vec3): return '%f %f %f'%(vec3.x, vec3.y, vec3.z) #return ' '.join(['%%.%df']*3)%tuple([precision]*3)%(vec3.x, vec3.y, vec3.z) def fmt_plane(plane3dots): return '( %s ) ( %s ) ( %s )'%(fmt3(plane3dots[0]), fmt3(plane3dots[1]), fmt3(plane3dots[2])) def fmt_tex(tev, toff): return '[ %s %.1f ]'%(fmt3(tev), toff) def fmt_face(plane3dots, tename, tev1, teoff1, tev2, teoff2, rot, scaleX, scaleY): return '%s %s %s %s %s'%( fmt_plane(plane3dots), tename, fmt_tex(tev1, teoff1), fmt_tex(tev2, teoff2), fmt3(Vector([rot, scaleX, scaleY])) ) def output_entity_start(dict_props, fh): fh.write('{\n') for k,v in dict_props.items(): fh.write('\t%-16s "%s"\n'%('"'+k+'"',v)) def output_brush_start(fh): fh.write('\t{\n') def output_brush_face(plane3dots, tename, tev1, teoff1, tev2, teoff2, rot, scaleX, scaleY, fh): fh.write('\t\t%s\n'%fmt_face(plane3dots, tename, tev1, teoff1, tev2, teoff2, rot, scaleX, scaleY)) def output_brush_end(fh): fh.write('\t}\n') def output_entity_end(fh): fh.write('}\n') def normal(plane3dots): v01 = plane3dots[1] - plane3dots[0] v02 = plane3dots[2] - plane3dots[0] n = v01.cross(v02) n.normalize() return n def flip(plane3dots): tmp = plane3dots[2] plane3dots[2] = plane3dots[1] plane3dots[1] = tmp def debug1(o=''): #print(o) return None def debug2(fano,plane3dots): fano.normalize() debug1(fano) v01 = plane3dots[1] - plane3dots[0] v02 = plane3dots[2] - plane3dots[0] n = v01.cross(v02) n.normalize() debug1(n) debug1(fano-n) debug1() def save(operator, context, filepath, worldspawn_props, blender_to_map_scale_factor, use_selection=True): """Save the Blender scene to a map file.""" # Make sure that data we want to access is not out of sync because edit mode is in use if bpy.ops.object.mode_set.poll(): bpy.ops.object.mode_set(mode='OBJECT') sc = context.scene if use_selection: objects = list(ob for ob in sc.objects if ob.is_visible(sc) and ob.type == 'MESH' and ob.data and ob.select) else: objects = list(ob for ob in sc.objects if ob.is_visible(sc) and ob.type == 'MESH' and ob.data) # Simplify each mesh once (a mesh could be used by multiple objects) for mesh in set([ob.data for ob in objects]): bm = bmesh.new() bm.from_mesh(mesh) bmesh.ops.remove_doubles(bm, verts=bm.verts, dist=1/blender_to_map_scale_factor) bmesh.ops.holes_fill(bm, edges=bm.edges) #, sides=0 bmesh.ops.connect_verts_concave(bm, faces=bm.faces) bmesh.ops.connect_verts_nonplanar(bm, faces=bm.faces) #, angle_limit=0.0 bmesh.ops.planar_faces(bm, faces=bm.faces) bmesh.ops.recalc_face_normals(bm, faces=bm.faces) bm.to_mesh(mesh) bm.free() # Iterate over objects, make computations (set of cross planes) and print them as worldspawn entity brushes with open(filepath, 'w') as fh: output_entity_start(worldspawn_props, fh) for ob in objects: debug1(ob.name) mat_to_map = ob.matrix_world * blender_to_map_scale_factor mesh = ob.data mesh.update(calc_tessface=True) for fa in mesh.tessfaces: output_brush_start(fh) tename='AAATRIGGER' tev1 = Vector([1,0,0]) teoff1 = 0 tev2 = Vector([0,-1,0]) teoff2 = 0 rot = 0 scaleX = 1 scaleY = 1 # Make a brush in .map for each face in blender # Brushes are (strangely) defined as a set of intersecting planes in .map # Planes are defined with 3 3D points belonging to it # "They must be in a clockwise order when facing the outside of the plane # that is, the side that points outwards from the brush" brfront = [None,None,None] brback = [None,None,None] # For now this code take the 3 first vectices of the face # TODO This can cause troubles if they are colinear or if they have narrow angle for i in [0,1,2]: vi = mesh.vertices[fa.vertices[i]].co # front plane in brush will match face in blender (in global coords, with a scale factor) brfront[i] = mat_to_map * vi # back plane will be 1 (map) unit inside (normal facing outside, so substract it) brback[i] = mat_to_map * ( vi - fa.normal / blender_to_map_scale_factor ) # Check if coords are in clockwise order, else flip them fano = mat_to_map.to_3x3() * fa.normal frno = normal(brfront) epsilon = 0.1 if ( (fano - frno).length_squared > epsilon ): flip(brfront) debug1('Front Flipped') else: flip(brback) debug1('Back Flipped') debug2(mat_to_map.to_3x3() * fa.normal, brfront) debug2(mat_to_map.to_3x3() *-fa.normal, brback) output_brush_face(brfront, tename, tev1, teoff1, tev2, teoff2, rot, scaleX, scaleY, fh) output_brush_face(brback, tename, tev1, teoff1, tev2, teoff2, rot, scaleX, scaleY, fh) # make 1 side face in brush per blender edge for i,j in fa.edge_keys: brside = [None,None,None] brside[0] = mat_to_map * ( mesh.vertices[i].co ) brside[1] = mat_to_map * ( mesh.vertices[j].co ) brside[2] = mat_to_map * ( mesh.vertices[j].co - fa.normal ) # Let have a plane define by a point A and a normal n # Let M a point in space. M is on the plane if AM.n = 0 # Now we want to know if the "side" face normal is poiting outwards of the brush (<0) # Take A = side[0], M = fa.center (that is inside the brush), n = normal(side) if ( (mat_to_map * fa.center - brside[0]).dot(normal(brside)) < 0): flip(brside) debug1('Side Flipped') debug1(normal(brside)) output_brush_face(brside, tename, tev1, teoff1, tev2, teoff2, rot, scaleX, scaleY, fh) output_brush_end(fh) # endfor fa in mesh.tessfaces: output_entity_end(fh) return {'FINISHED'}