diff options
| -rw-r--r-- | .nix/derivation.nix | 8 | ||||
| -rw-r--r-- | SConstruct | 68 | ||||
| -rw-r--r-- | c++/SConscript | 37 | ||||
| -rw-r--r-- | c++/ico.hpp | 70 | ||||
| -rw-r--r-- | default.nix | 3 |
5 files changed, 186 insertions, 0 deletions
diff --git a/.nix/derivation.nix b/.nix/derivation.nix new file mode 100644 index 0000000..b318a46 --- /dev/null +++ b/.nix/derivation.nix @@ -0,0 +1,8 @@ +{ stdenv +}: +stdenv.mkDerivation { + pname = "icosahedrical_destruction"; + version = "0.0.0"; + + src = ./..; +} diff --git a/SConstruct b/SConstruct new file mode 100644 index 0000000..c07c9b4 --- /dev/null +++ b/SConstruct @@ -0,0 +1,68 @@ +#!/usr/bin/env python3 + +import sys +import os +import os.path +import glob +import re + + +if sys.version_info < (3,): + def isbasestring(s): + return isinstance(s,basestring) +else: + def isbasestring(s): + return isinstance(s, (str,bytes)) + +def add_kel_source_files(self, sources, filetype, lib_env=None, shared=False, target_post=""): + + if isbasestring(filetype): + dir_path = self.Dir('.').abspath + filetype = sorted(glob.glob(dir_path+"/"+filetype)) + + for path in filetype: + target_name = re.sub( r'(.*?)(\.cpp|\.c\+\+)', r'\1' + target_post, path ) + if shared: + target_name+='.os' + sources.append( self.SharedObject( target=target_name, source=path ) ) + else: + target_name+='.o' + sources.append( self.StaticObject( target=target_name, source=path ) ) + pass + +def isAbsolutePath(key, dirname, env): + assert os.path.isabs(dirname), "%r must have absolute path syntax" % (key,) + +env_vars = Variables( + args=ARGUMENTS +) + +env_vars.Add('prefix', + help='Installation target location of build results and headers', + default='/usr/local/', + validator=isAbsolutePath +) + +env=Environment(ENV=os.environ, variables=env_vars, CPPPATH=[], + CXX=['c++'], + CPPDEFINES=[], + CXXFLAGS=['-std=c++20','-g','-Wall','-Wextra'], + LIBS=[]) +env.__class__.add_source_files = add_kel_source_files +env.Tool('compilation_db'); +env.cdb = env.CompilationDatabase('compile_commands.json'); + +env.objects = []; +env.sources = []; +env.headers = []; +env.targets = []; + +Export('env') +SConscript('c++/SConscript') + +# Aliasing +env.Alias('cdb', env.cdb); +env.Alias('all', [env.targets]); +env.Default('all'); + +env.Alias('install', '$prefix') diff --git a/c++/SConscript b/c++/SConscript new file mode 100644 index 0000000..beb41e5 --- /dev/null +++ b/c++/SConscript @@ -0,0 +1,37 @@ +#!/bin/false + +import os +import os.path +import glob + + +Import('env') + +dir_path = Dir('.').abspath + +# Environment for base library +core_env = env.Clone(); + +core_env.sources = sorted(glob.glob(dir_path + "/*.cpp")) +core_env.headers = sorted(glob.glob(dir_path + "/*.hpp")) + +env.sources += core_env.sources; +env.headers += core_env.headers; + +## Shared lib +objects_shared = [] +core_env.add_source_files(objects_shared, core_env.sources, shared=True); +env.library_shared = core_env.SharedLibrary('#build/icosahedrical_destruction', [objects_shared]); + +# Set Alias +env.Alias('library', [env.library_shared]); + +env.targets += ['library']; + +# Install +env.Install('$prefix/lib/', [env.library_shared]); +env.Install('$prefix/include/sims/icosahedrical_destruction', [core_env.headers]); + +# Test +# Export('core_env'); +# SConscript('tests/SConscript'); diff --git a/c++/ico.hpp b/c++/ico.hpp new file mode 100644 index 0000000..0ac1a91 --- /dev/null +++ b/c++/ico.hpp @@ -0,0 +1,70 @@ +#pragma once + +#include <array> +#include <cstdint> + +namespace kel { +namespace impl { +struct ico_surface_helper { + /** + * On each triangle we assume a ccw order and we start on the top-left part of the + * triangle. The orientation of the triangle is determined by the horizontal line + * (on the 2D foldout of the icosahedron) which is the down direction. + */ + static constexpr std::array<std::array<uint8_t,3u>, 20u> neighbour_map { + {1,4,5},//0 + {2,0,6},//1 + {3,1,7},//2 + {4,2,8},//3 + {0,3,9},//4 + {14,10,0},//5 + {10,11,1},//6 + {11,12,2},//7 + {12,13,3},//8 + {13,14,4},//9 + {6,5,15},//10 + {7,6,16},//11 + {8,7,17},//12 + {9,8,18},//13 + {5,9,19},//14 + {19,16,10},//15 + {15,17,11},//16 + {16,18,12},//17 + {17,19,13},//18 + {18,15,14} //19 + }; +}; +} + +template<uint64_t SubD> +class ico_addr { +private: + std::array<uint8_t, SubD+1u> vals_; +public: + template<uint64_t Div = 1u> + ico_addr<Div> slice() const { + return {}; + } +}; + +template<typename T, uint64_t D> +class ico_triangle { +private: + std::array<ico_triangle<T,D-1u>> subdivs_; +public: +}; + +template<typename T> +class ico_triangle<T,0u> final { +private: + T val_; +public: +}; + +template<typename T, uint64_t SubD> +class icosahedron final { +private: + std::array<ico_triangle<T,SubD>,20u> surfaces_; +public: +}; +} diff --git a/default.nix b/default.nix new file mode 100644 index 0000000..99e112c --- /dev/null +++ b/default.nix @@ -0,0 +1,3 @@ +{ pkgs ? import <nixpkgs> {} +}: +pkgs.callPackage ./.nix/derivation.nix {} |