source: trunk/src/easymesh/easymesh-parser.y @ 2350

Last change on this file since 2350 was 2350, checked in by touky, 7 years ago

easymesh : CSG operation is now handled with a safe enum.

File size: 6.6 KB
RevLine 
[1419]1%{
2//
[1510]3// Lol Engine
[1419]4//
[2226]5// Copyright: (c) 2010-2013 Sam Hocevar <sam@hocevar.net>
6//            (c) 2009-2013 Cédric Lecacheur <jordx@free.fr>
7//            (c) 2009-2013 Benjamin "Touky" Huet <huet.benjamin@gmail.com>
[1510]8//   This program is free software; you can redistribute it and/or
9//   modify it under the terms of the Do What The Fuck You Want To
10//   Public License, Version 2, as published by Sam Hocevar. See
[2183]11//   http://www.wtfpl.net/ for more details.
[1419]12//
[1415]13
[1418]14#if defined HAVE_CONFIG_H
15#   include "config.h"
16#endif
17
18#include "core.h"
[1510]19#include "easymesh/easymesh.h"
[1418]20
[1510]21#include <string>
[1418]22
23%}
24
25%require "2.3"
26%debug
27%defines
[1415]28%skeleton "lalr1.cc"
[1510]29%name-prefix="lol"
30%define parser_class_name "EasyMeshParser"
[1415]31%locations
[1510]32%parse-param { class EasyMeshCompiler& mc }
[1418]33%error-verbose
34
[1415]35%union
36{
37    float fval;
[1432]38    /* Can't use uin32_t here for some reason */
39    unsigned u32val;
[2152]40    struct { float f0, f1, f2, f3, f4, f5, f6, f7, f8, f9; } args;
[1415]41}
42
[1419]43%start mesh_description
44
[1418]45%token T_COLOR T_BGCOLOR
[1415]46
47%token T_TRANSLATEX T_ROTATEX T_TAPERX T_SCALEX T_MIRRORX
48%token T_TRANSLATEY T_ROTATEY T_TAPERY T_SCALEY T_MIRRORY
49%token T_TRANSLATEZ T_ROTATEZ T_TAPERZ T_SCALEZ T_MIRRORZ
[2294]50%token T_TRANSLATE T_SCALE T_TOGGLESCALEWINDING T_RADIALJITTER
[2350]51%token T_CSGUNION T_CSGSUBSTRACT T_CSGSUBSTRACTLOSS T_CSGAND T_CSGXOR
[1506]52%token T_CHAMFER
[1415]53
[1619]54%token T_CYLINDER T_BOX T_SMOOTHCHAMFBOX T_FLATCHAMFBOX T_SPHERE T_CAPSULE
[1875]55%token T_STAR T_EXPANDEDSTAR T_DISC T_TRIANGLE T_QUAD T_COG T_TORUS
[1415]56
57%token T_END 0
[1442]58%token T_ERROR
[1415]59
60%token <fval> NUMBER
[1430]61%token <u32val> COLOR
[1415]62
63%type <fval> number
[2152]64%type <args> args1 args2 args3 args4 args5 args6 args7 args8 args9 args10
[1415]65
[1418]66%{
[1510]67#include "easymesh/easymesh-compiler.h"
[1415]68
[1418]69#undef yylex
[1422]70#define yylex mc.m_lexer->lex
[1418]71%}
72
[1419]73%%
[1418]74
[1415]75mesh_description:
[1434]76    mesh_expression_list T_END
[1415]77    ;
78
[1434]79mesh_expression_list:
80    mesh_expression
81  | mesh_expression mesh_expression_list
82  ;
83
84mesh_expression:
85    mesh_command_list
86  | mesh_open mesh_expression_list mesh_close
87    ;
88
89mesh_open:
90    '['       { mc.m_mesh.OpenBrace(); }
91    ;
92
93mesh_close:
94    ']'       { mc.m_mesh.CloseBrace(); }
95    ;
96
[1415]97mesh_command_list:
98    mesh_command
[1434]99  | mesh_command_list mesh_command
[1415]100    ;
101
102mesh_command:
[1442]103    color_command
[1415]104  | transform_command
105  | primitive_command
106    ;
107
108color_command:
[1422]109    T_COLOR args4   { mc.m_mesh.SetCurColor(vec4($2.f0, $2.f1, $2.f2, $2.f3)); }
[1495]110  | T_COLOR COLOR   { uint32_t x = $2;
111                      vec4 v(x >> 24, (x >> 16) & 0xff, (x >> 8) & 0xff, x & 0xff);
[2318]112                      mc.m_mesh.SetCurColor(vec4(v) * (1.f / 255)); }
[1422]113  | T_BGCOLOR args4 { mc.m_mesh.SetCurColor2(vec4($2.f0, $2.f1, $2.f2, $2.f3)); }
[1495]114  | T_BGCOLOR COLOR { uint32_t x = $2;
115                      vec4 v(x >> 24, (x >> 16) & 0xff, (x >> 8) & 0xff, x & 0xff);
[2318]116                      mc.m_mesh.SetCurColor2(vec4(v) * (1.f / 255)); }
[1415]117    ;
118
119transform_command:
[2226]120    T_CHAMFER args1        { mc.m_mesh.Chamfer($2.f0); }
121  | T_TRANSLATEX args1     { mc.m_mesh.Translate(vec3($2.f0, 0, 0)); }
122  | T_TRANSLATEY args1     { mc.m_mesh.Translate(vec3(0, $2.f0, 0)); }
123  | T_TRANSLATEZ args1     { mc.m_mesh.Translate(vec3(0, 0, $2.f0)); }
124  | T_TRANSLATE args3      { mc.m_mesh.Translate(vec3($2.f0, $2.f1, $2.f2)); }
125  | T_ROTATEX args1        { mc.m_mesh.RotateX($2.f0); }
126  | T_ROTATEY args1        { mc.m_mesh.RotateY($2.f0); }
127  | T_ROTATEZ args1        { mc.m_mesh.RotateZ($2.f0); }
128  | T_TAPERX args3         { mc.m_mesh.TaperX($2.f0, $2.f1, $2.f2); }
129  | T_TAPERY args3         { mc.m_mesh.TaperY($2.f0, $2.f1, $2.f2); }
130  | T_TAPERZ args3         { mc.m_mesh.TaperZ($2.f0, $2.f1, $2.f2); }
131  | T_SCALEX args1         { mc.m_mesh.Scale(vec3($2.f0, 1.0, 1.0)); }
132  | T_SCALEY args1         { mc.m_mesh.Scale(vec3(1.0, $2.f0, 1.0)); }
133  | T_SCALEZ args1         { mc.m_mesh.Scale(vec3(1.0, 1.0, $2.f0)); }
134  | T_SCALE args3          { mc.m_mesh.Scale(vec3($2.f0, $2.f1, $2.f2)); }
135  | T_MIRRORX              { mc.m_mesh.MirrorX(); }
136  | T_MIRRORY              { mc.m_mesh.MirrorY(); }
137  | T_MIRRORZ              { mc.m_mesh.MirrorZ(); }
[2294]138  | T_RADIALJITTER args1   { mc.m_mesh.RadialJitter($2.f0); }
[2226]139  | T_TOGGLESCALEWINDING   { mc.m_mesh.ToggleScaleWinding(); }
140  | T_CSGUNION             { mc.m_mesh.CsgUnion(); }
141  | T_CSGSUBSTRACT         { mc.m_mesh.CsgSubstract(); }
[2350]142  | T_CSGSUBSTRACTLOSS     { mc.m_mesh.CsgSubstractLoss(); }
[2226]143  | T_CSGAND               { mc.m_mesh.CsgAnd(); }
144  | T_CSGXOR               { mc.m_mesh.CsgXor(); }
[1415]145    ;
146
147primitive_command:
[1422]148    T_CYLINDER args6       { mc.m_mesh.AppendCylinder((int)$2.f0, $2.f1,
[1415]149                                                 $2.f2, $2.f3,
150                                                 (int)$2.f4, (int)$2.f5); }
[1422]151  | T_BOX args3            { mc.m_mesh.AppendBox(vec3($2.f0, $2.f1, $2.f2)); }
152  | T_SMOOTHCHAMFBOX args4 { mc.m_mesh.AppendSmoothChamfBox(vec3($2.f0, $2.f1,
[1415]153                                                            $2.f2), $2.f3); }
[1422]154  | T_FLATCHAMFBOX args4   { mc.m_mesh.AppendFlatChamfBox(vec3($2.f0, $2.f1,
[1415]155                                                          $2.f2), $2.f3); }
[1422]156  | T_SPHERE args4         { mc.m_mesh.AppendSphere($2.f0,
[1415]157                                               vec3($2.f1, $2.f2, $2.f3)); }
[1619]158  | T_CAPSULE args3        { mc.m_mesh.AppendCapsule($2.f0, $2.f1, $2.f2); }
[1875]159  | T_TORUS args3          { mc.m_mesh.AppendTorus((int)$2.f0, $2.f1, $2.f2); }
[1422]160  | T_STAR args5           { mc.m_mesh.AppendStar((int)$2.f0, $2.f1, $2.f2,
[1415]161                                             (int)$2.f3, (int)$2.f4); }
[1422]162  | T_EXPANDEDSTAR args4   { mc.m_mesh.AppendExpandedStar((int)$2.f0, $2.f1,
[1415]163                                                     $2.f2, $2.f3); }
[1422]164  | T_DISC args3           { mc.m_mesh.AppendDisc((int)$2.f0, $2.f1, (int)$2.f2); }
165  | T_TRIANGLE args2       { mc.m_mesh.AppendSimpleTriangle($2.f0, (int)$2.f1); }
166  | T_QUAD args2           { mc.m_mesh.AppendSimpleQuad($2.f0, (int)$2.f1); }
[2152]167  | T_COG args10           { mc.m_mesh.AppendCog((int)$2.f0, $2.f1,
168                                 $2.f2, $2.f3, $2.f4, $2.f5, $2.f6,
169                                 $2.f7, $2.f8, (int)$2.f9); }
[1415]170    ;
171
172args1: number { $$.f0 = $1; } ;
[1434]173args2: args1 number { $$ = $1; $$.f1 = $2; } ;
174args3: args2 number { $$ = $1; $$.f2 = $2; } ;
175args4: args3 number { $$ = $1; $$.f3 = $2; } ;
176args5: args4 number { $$ = $1; $$.f4 = $2; } ;
177args6: args5 number { $$ = $1; $$.f5 = $2; } ;
178args7: args6 number { $$ = $1; $$.f6 = $2; } ;
179args8: args7 number { $$ = $1; $$.f7 = $2; } ;
[2152]180args9: args8 number { $$ = $1; $$.f8 = $2; } ;
181args10: args9 number { $$ = $1; $$.f9 = $2; } ;
[1415]182
183number:
184    NUMBER       { $$ = $1; }
185  | '-' number   { $$ = -$2; }
186    ;
187
[1419]188%%
[1415]189
[1510]190void lol::EasyMeshParser::error(const EasyMeshParser::location_type& l,
[1418]191                                const std::string& m)
[1415]192{
[1422]193    mc.Error(l, m);
[1415]194}
[1419]195
Note: See TracBrowser for help on using the repository browser.