christoph/cpp-masssprings
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store winning condition in state + remove presets

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This commit is contained in:
Christoph Urlacher
2026-02-24 21:33:05 +01:00
parent f31f9557b3
commit d8534cacdd
11 changed files with 178 additions and 279 deletions
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3
CMakeLists.txt
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@ -19,6 +19,9 @@ if(USE_TRACY)
FetchContent_MakeAvailable(tracy) FetchContent_MakeAvailable(tracy)
option(TRACY_ENABLE "" ON) option(TRACY_ENABLE "" ON)
option(TRACY_ON_DEMAND "" ON) option(TRACY_ON_DEMAND "" ON)
# Enable tracy macros in the application
add_compile_definitions(TRACY)
endif() endif()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wfloat-equal -Wundef -Wshadow -Wpointer-arith -Wcast-align -Wno-unused-parameter -Wunreachable-code") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wfloat-equal -Wundef -Wshadow -Wpointer-arith -Wcast-align -Wno-unused-parameter -Wunreachable-code")

32
default.puzzle Normal file
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@ -0,0 +1,32 @@
// 1 Block, 1 Axis, no goal
R4599ab......................................
// 2 Blocks, 2 Axes, no goal
R45991212....................................
// 3 Blocks, 3 Axes, still no goal
R4599121212..................................
// Square with no goal
F449921....111222..11......111111....
// RushHour 1
R6642..13..21..13..................ba..........12............21..............
// RushHour 2
R664231........13................12ba..........1221..12..12..21........31....
// RushHour 3
R66421231....1213..31........ba..121212..21................1221..........21..
// RushHour 4
R664231....12....1221......12..ba..1212..21..12....12......21......21..21....
// Klotski
F451312bb..12........1221..12..1111..11....11
// Century
F451311bb..1112....12..12....11....1121..21..
// Super Century
F451312111111..12bb..12........21..11....21..

5
flake.nix
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@ -172,7 +172,7 @@ rec {
package = stdenv.mkDerivation rec { package = stdenv.mkDerivation rec {
inherit buildInputs; inherit buildInputs;
pname = "masssprings"; pname = "masssprings";
version = "0.0.1"; version = "1.0.0";
src = ./.; src = ./.;
nativeBuildInputs = with pkgs; [ nativeBuildInputs = with pkgs; [
@ -182,7 +182,8 @@ rec {
installPhase = '' installPhase = ''
mkdir -p $out/bin mkdir -p $out/bin
mv ./${pname} $out/bin cp ./${pname} $out/bin/
cp $src/default.puzzle $out/bin/
''; '';
}; };
in rec { in rec {

4
include/config.hpp
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@ -4,9 +4,11 @@
#include <raylib.h> #include <raylib.h>
#define THREADPOOL // Enable physics threadpool #define THREADPOOL // Enable physics threadpool
#define TRACY // Enable tracy profiling support
#define BACKWARD // Enable pretty stack traces #define BACKWARD // Enable pretty stack traces
// Gets set by CMake
// #define TRACY // Enable tracy profiling support
// Window // Window
constexpr int INITIAL_WIDTH = 800; constexpr int INITIAL_WIDTH = 800;
constexpr int INITIAL_HEIGHT = 800; constexpr int INITIAL_HEIGHT = 800;

215
include/presets.hpp
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@ -1,215 +0,0 @@
#ifndef __PRESETS_HPP_
#define __PRESETS_HPP_
#include "config.hpp"
#include "puzzle.hpp"
#include <functional>
#include <vector>
using StateGenerator = std::function<State(void)>;
inline auto state_simple_1r() -> State {
State s = State(4, 5, true);
s.AddBlock(Block(0, 0, 1, 2, true));
return s;
}
inline auto state_simple_1r_wc(const State &state) -> bool { return false; }
inline auto state_simple_1f() -> State {
State s = State(4, 5, false);
s.AddBlock(Block(0, 0, 1, 2, false));
return s;
}
inline auto state_simple_1f_wc(const State &state) -> bool { return false; }
inline auto state_simple_2r() -> State {
State s = State(4, 5, true);
s.AddBlock(Block(0, 0, 1, 2, false));
s.AddBlock(Block(1, 0, 1, 2, false));
return s;
}
inline auto state_simple_2r_wc(const State &state) -> bool { return false; }
inline auto state_simple_2f() -> State {
State s = State(4, 5, false);
s.AddBlock(Block(0, 0, 1, 2, false));
s.AddBlock(Block(1, 0, 1, 2, false));
return s;
}
inline auto state_simple_2f_wc(const State &state) -> bool { return false; }
inline auto state_simple_3r() -> State {
State s = State(4, 5, true);
s.AddBlock(Block(0, 0, 1, 2, false));
s.AddBlock(Block(1, 0, 1, 2, false));
s.AddBlock(Block(2, 0, 1, 2, false));
return s;
}
inline auto state_simple_3r_wc(const State &state) -> bool { return false; }
inline auto state_simple_3f() -> State {
State s = State(4, 5, false);
s.AddBlock(Block(0, 0, 1, 2, false));
s.AddBlock(Block(1, 0, 1, 2, false));
s.AddBlock(Block(2, 0, 1, 2, false));
return s;
}
inline auto state_simple_3f_wc(const State &state) -> bool { return false; }
inline auto state_complex_1r() -> State {
State s = State(6, 6, true);
s.AddBlock(Block(1, 0, 1, 3, false));
s.AddBlock(Block(3, 0, 2, 1, false));
s.AddBlock(Block(5, 0, 1, 3, false));
s.AddBlock(Block(3, 2, 2, 1, true));
s.AddBlock(Block(3, 3, 1, 2, false));
s.AddBlock(Block(4, 4, 2, 1, false));
return s;
}
inline auto state_complex_1r_wc(const State &state) -> bool {
return state.GetBlockAt(4, 2) == "ba";
}
inline auto state_complex_2r() -> State {
State s = State(6, 6, true);
s.AddBlock(Block(2, 0, 1, 3, false));
s.AddBlock(Block(0, 2, 2, 1, true));
s.AddBlock(Block(1, 3, 2, 1, false));
s.AddBlock(Block(1, 4, 2, 1, false));
s.AddBlock(Block(5, 4, 1, 2, false));
s.AddBlock(Block(0, 5, 3, 1, false));
return s;
}
inline auto state_complex_2r_wc(const State &state) -> bool {
return state.GetBlockAt(4, 2) == "ba";
}
inline auto state_complex_3r() -> State {
State s = State(6, 6, true);
s.AddBlock(Block(0, 0, 3, 1, false));
s.AddBlock(Block(5, 0, 1, 3, false));
s.AddBlock(Block(2, 2, 1, 2, false));
s.AddBlock(Block(3, 2, 2, 1, true));
s.AddBlock(Block(3, 3, 1, 2, false));
s.AddBlock(Block(4, 3, 2, 1, false));
s.AddBlock(Block(0, 4, 1, 2, false));
s.AddBlock(Block(2, 4, 1, 2, false));
s.AddBlock(Block(4, 4, 2, 1, false));
s.AddBlock(Block(3, 5, 3, 1, false));
return s;
}
inline auto state_complex_3r_wc(const State &state) -> bool {
return state.GetBlockAt(4, 2) == "ba";
}
inline auto state_complex_4f() -> State {
State s = State(4, 4, false);
s.AddBlock(Block(0, 0, 2, 1, false));
s.AddBlock(Block(3, 0, 1, 1, false));
s.AddBlock(Block(0, 1, 1, 2, false));
s.AddBlock(Block(1, 1, 2, 2, false));
s.AddBlock(Block(3, 1, 1, 1, false));
s.AddBlock(Block(3, 2, 1, 1, false));
s.AddBlock(Block(0, 3, 1, 1, false));
s.AddBlock(Block(1, 3, 1, 1, false));
return s;
}
inline auto state_complex_4f_wc(const State &state) -> bool { return false; }
inline auto state_complex_5r() -> State {
return State("R6x6:31....12....1221......12..ba..1212..21..12....12......21.."
"....21..21....");
}
inline auto state_complex_5r_wc(const State &state) -> bool {
return state.GetBlockAt(4, 2) == "ba";
}
inline auto state_complex_6r() -> State {
return State(
"R6x6:1231....1213..31........ba..121212..21................1221....."
".....21..");
}
inline auto state_complex_6r_wc(const State &state) -> bool {
return state.GetBlockAt(4, 2) == "ba";
}
inline auto state_klotski() -> State {
State s = State(4, 5, false);
s.AddBlock(Block(0, 0, 1, 2, false));
s.AddBlock(Block(1, 0, 2, 2, true));
s.AddBlock(Block(3, 0, 1, 2, false));
s.AddBlock(Block(0, 2, 1, 2, false));
s.AddBlock(Block(1, 2, 2, 1, false));
s.AddBlock(Block(3, 2, 1, 2, false));
s.AddBlock(Block(1, 3, 1, 1, false));
s.AddBlock(Block(2, 3, 1, 1, false));
s.AddBlock(Block(0, 4, 1, 1, false));
s.AddBlock(Block(3, 4, 1, 1, false));
return s;
}
inline auto state_klotski_wc(const State &state) -> bool {
return state.GetBlockAt(1, 3) == "bb";
}
inline auto state_century() -> State {
return State("F4x5:11bb..1112....12..12....11....1121..21..");
}
inline auto state_century_wc(const State &state) -> bool {
return state.GetBlockAt(1, 3) == "bb";
}
inline auto state_super_century() -> State {
return State("F4x5:12111111..12bb..12........21..11....21..");
}
inline auto state_super_century_wc(const State &state) -> bool {
return state.GetBlockAt(1, 3) == "bb";
}
inline auto state_new_century() -> State {
return State("F4x5:12111111..12bb..12........21..11....21..");
}
inline auto state_new_century_wc(const State &state) -> bool {
// What kind of brain do you need for this???
return state.state == "F4x5:21......1121..12bb..12........12111111..";
}
static std::vector<StateGenerator> generators{
state_simple_1r, state_simple_2r, state_simple_3r, state_complex_1r,
state_complex_2r, state_complex_3r, state_complex_4f, state_complex_5r,
state_complex_6r, state_klotski, state_century, state_super_century};
static std::vector<WinCondition> win_conditions{
state_simple_1r_wc, state_simple_2r_wc, state_simple_3r_wc,
state_complex_1r_wc, state_complex_2r_wc, state_complex_3r_wc,
state_complex_4f_wc, state_complex_5r_wc, state_complex_6r_wc,
state_klotski_wc, state_century_wc, state_super_century_wc};
#endif

68
include/puzzle.hpp
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@ -102,16 +102,21 @@ public:
auto Collides(const Block &other) const -> bool; auto Collides(const Block &other) const -> bool;
}; };
// A state is represented by a string "WxH:blocks", where W is the board width, // A state is represented by a string "MWHXYblocks", where M is "R"
// H is the board height and blocks is an enumeration of each of the board's // (restricted) or "F" (free), W is the board width, H is the board height, X is
// cells, with each cell being a 2-letter or 2-digit block representation (a 3x3 // the target block x goal, Y is the target block y goal and blocks is an
// board would have a string representation with length 4 + 3*3 * 2). // enumeration of each of the board's cells, with each cell being a 2-letter or
// The board's cells are enumerated from top-left to bottom-right with each // 2-digit block representation (a 3x3 board would have a string representation
// block's pivot being its top-left corner. // with length 5 + 3*3 * 2). The board's cells are enumerated from top-left to
// bottom-right with each block's pivot being its top-left corner.
class State { class State {
public: public:
static constexpr int prefix = 5;
int width; int width;
int height; int height;
int target_x;
int target_y;
bool restricted; // Only allow blocks to move in their principal direction bool restricted; // Only allow blocks to move in their principal direction
std::string state; std::string state;
@ -133,13 +138,13 @@ public:
Block operator*() const { Block operator*() const {
return Block(current_pos % state.width, current_pos / state.width, return Block(current_pos % state.width, current_pos / state.width,
state.state.substr(current_pos * 2 + 5, 2)); state.state.substr(current_pos * 2 + prefix, 2));
} }
BlockIterator &operator++() { BlockIterator &operator++() {
do { do {
current_pos++; current_pos++;
} while (state.state.substr(current_pos * 2 + 5, 2) == ".."); } while (state.state.substr(current_pos * 2 + prefix, 2) == "..");
return *this; return *this;
} }
@ -151,28 +156,51 @@ public:
}; };
public: public:
State(int _width, int _height, bool _restricted) State(int _width, int _height, int _target_x, int _target_y, bool _restricted)
: width(_width), height(_height), restricted(_restricted), : width(_width), height(_height), target_x(_target_x),
state(std::format("{}{}x{}:{}", _restricted ? "R" : "F", _width, target_y(_target_y), restricted(_restricted),
_height, std::string(_width * _height * 2, '.'))) { state(std::format("{}{}{}{}{}{}", _restricted ? "R" : "F", _width,
if (_width <= 0 || _width >= 10 || _height <= 0 || _height >= 10) { _height, _target_x, _target_y,
std::string(_width * _height * 2, '.'))) {
if (_width < 1 || _width > 9 || _height < 1 || _height > 9) {
std::cerr << "State width/height must be in [1, 9]!" << std::endl; std::cerr << "State width/height must be in [1, 9]!" << std::endl;
exit(1); exit(1);
} }
if (_target_x < 0 || _target_x >= 9 || _target_y < 0 || _target_y >= 9) {
if (_target_x != 9 && _target_y != 9) {
std::cerr << "State target must be within the board bounds!"
<< std::endl;
exit(1);
}
}
} }
State(int _width, int _height, bool _restricted)
: State(_width, _height, 9, 9, _restricted) {}
State() : State(4, 5, 9, 9, false) {}
explicit State(std::string _state) explicit State(std::string _state)
: width(std::stoi(_state.substr(1, 1))), : width(std::stoi(_state.substr(1, 1))),
height(std::stoi(_state.substr(3, 1))), height(std::stoi(_state.substr(2, 1))),
target_x(std::stoi(_state.substr(3, 1))),
target_y(std::stoi(_state.substr(4, 1))),
restricted(_state.substr(0, 1) == "R"), state(_state) { restricted(_state.substr(0, 1) == "R"), state(_state) {
if (width <= 0 || width >= 10 || height <= 0 || height >= 10) { if (width < 1 || width > 9 || height < 1 || height > 9) {
std::cerr << "State width/height must be in [1, 9]!" << std::endl; std::cerr << "State width/height must be in [1, 9]!" << std::endl;
exit(1); exit(1);
} }
if (static_cast<int>(_state.length()) != width * height * 2 + 5) { if (target_x < 0 || target_x >= 9 || target_y < 0 || target_y >= 9) {
if (target_x != 9 && target_y != 9) {
std::cerr << "State target must be within the board bounds!"
<< std::endl;
exit(1);
}
}
if (static_cast<int>(_state.length()) != width * height * 2 + prefix) {
std::cerr std::cerr
<< "State representation must have length [width * height * 2 + 5]!" << "State representation must have length [width * height * 2 + "
<< std::endl; << prefix << "]!" << std::endl;
exit(1); exit(1);
} }
} }
@ -194,6 +222,10 @@ public:
public: public:
auto Hash() const -> int; auto Hash() const -> int;
auto HasWinCondition() const -> bool;
auto IsWon() const -> bool;
auto AddColumn() const -> State; auto AddColumn() const -> State;
auto RemoveColumn() const -> State; auto RemoveColumn() const -> State;

18
include/state.hpp
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@ -3,7 +3,6 @@
#include "config.hpp" #include "config.hpp"
#include "physics.hpp" #include "physics.hpp"
#include "presets.hpp"
#include "puzzle.hpp" #include "puzzle.hpp"
#include <raymath.h> #include <raymath.h>
@ -14,6 +13,8 @@ class StateManager {
public: public:
ThreadedPhysics &physics; ThreadedPhysics &physics;
std::vector<State> presets;
std::unordered_map<State, std::size_t> states; std::unordered_map<State, std::size_t> states;
std::unordered_set<State> winning_states; std::unordered_set<State> winning_states;
std::unordered_set<State> visited_states; std::unordered_set<State> visited_states;
@ -26,11 +27,11 @@ public:
bool edited = false; bool edited = false;
public: public:
StateManager(ThreadedPhysics &_physics) StateManager(ThreadedPhysics &_physics, const std::string &preset_file)
: physics(_physics), current_preset(0), : physics(_physics), presets({State()}), current_preset(0),
starting_state(generators[current_preset]()),
current_state(starting_state), previous_state(starting_state),
edited(false) { edited(false) {
ParsePresetFile(preset_file);
current_state = presets.at(current_preset);
ClearGraph(); ClearGraph();
} }
@ -41,6 +42,9 @@ public:
~StateManager() {} ~StateManager() {}
private:
auto ParsePresetFile(const std::string &preset_file) -> void;
public: public:
auto LoadPreset(int preset) -> void; auto LoadPreset(int preset) -> void;
@ -58,10 +62,6 @@ public:
auto FindWinningStates() -> void; auto FindWinningStates() -> void;
auto CurrentGenerator() const -> StateGenerator;
auto CurrentWinCondition() const -> WinCondition;
auto CurrentMassIndex() const -> std::size_t; auto CurrentMassIndex() const -> std::size_t;
}; };

12
src/main.cpp
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@ -25,10 +25,12 @@
// - Also mark the next move along the path on the board // - Also mark the next move along the path on the board
auto main(int argc, char *argv[]) -> int { auto main(int argc, char *argv[]) -> int {
// if (argc < 2) { std::string preset_file;
// std::cout << "Missing .klotski file." << std::endl; if (argc != 2) {
// return 1; preset_file = "default.puzzle";
// } } else {
preset_file = argv[1];
}
// RayLib window setup // RayLib window setup
SetTraceLogLevel(LOG_ERROR); SetTraceLogLevel(LOG_ERROR);
@ -40,7 +42,7 @@ auto main(int argc, char *argv[]) -> int {
// Game setup // Game setup
ThreadedPhysics physics; ThreadedPhysics physics;
StateManager state(physics); StateManager state(physics, preset_file);
InputHandler input(state); InputHandler input(state);
OrbitCamera3D camera; OrbitCamera3D camera;
Renderer renderer(camera, state, input); Renderer renderer(camera, state, input);

42
src/puzzle.cpp
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@ -53,6 +53,24 @@ auto Block::Collides(const Block &other) const -> bool {
auto State::Hash() const -> int { return std::hash<std::string>{}(state); } auto State::Hash() const -> int { return std::hash<std::string>{}(state); }
auto State::HasWinCondition() const -> bool {
return target_x == 9 || target_y == 9;
}
auto State::IsWon() const -> bool {
if (!HasWinCondition()) {
return false;
}
for (const auto &block : *this) {
if (block.target) {
return block.x == target_x && block.y == target_y;
}
}
return false;
}
auto State::AddColumn() const -> State { auto State::AddColumn() const -> State {
State newstate = State(width + 1, height, restricted); State newstate = State(width + 1, height, restricted);
@ -129,7 +147,7 @@ auto State::GetBlockAt(int x, int y) const -> std::string {
} }
auto State::GetIndex(int x, int y) const -> int { auto State::GetIndex(int x, int y) const -> int {
return 5 + (y * width + x) * 2; return prefix + (y * width + x) * 2;
} }
auto State::RemoveBlock(int x, int y) -> bool { auto State::RemoveBlock(int x, int y) -> bool {
@ -185,36 +203,36 @@ auto State::MoveBlockAt(int x, int y, Direction dir) -> bool {
Direction::WES; Direction::WES;
// Get target block // Get target block
int target_x = block.x; int _target_x = block.x;
int target_y = block.y; int _target_y = block.y;
switch (dir) { switch (dir) {
case Direction::NOR: case Direction::NOR:
if (!(dirs & Direction::NOR) || target_y < 1) { if (!(dirs & Direction::NOR) || _target_y < 1) {
return false; return false;
} }
target_y--; _target_y--;
break; break;
case Direction::EAS: case Direction::EAS:
if (!(dirs & Direction::EAS) || target_x + block.width >= width) { if (!(dirs & Direction::EAS) || _target_x + block.width >= width) {
return false; return false;
} }
target_x++; _target_x++;
break; break;
case Direction::SOU: case Direction::SOU:
if (!(dirs & Direction::SOU) || target_y + block.height >= height) { if (!(dirs & Direction::SOU) || _target_y + block.height >= height) {
return false; return false;
} }
target_y++; _target_y++;
break; break;
case Direction::WES: case Direction::WES:
if (!(dirs & Direction::WES) || target_x < 1) { if (!(dirs & Direction::WES) || _target_x < 1) {
return false; return false;
} }
target_x--; _target_x--;
break; break;
} }
Block target = Block target =
Block(target_x, target_y, block.width, block.height, block.target); Block(_target_x, _target_y, block.width, block.height, block.target);
// Check collisions // Check collisions
for (Block b : *this) { for (Block b : *this) {

2
src/renderer.cpp
View File

@ -207,7 +207,7 @@ auto Renderer::DrawKlotski() -> void {
DrawRectangle(x_offset, y_offset, DrawRectangle(x_offset, y_offset,
board_width - 2 * x_offset + 2 * BOARD_PADDING, board_width - 2 * x_offset + 2 * BOARD_PADDING,
board_height - 2 * y_offset + 2 * BOARD_PADDING, board_height - 2 * y_offset + 2 * BOARD_PADDING,
state.CurrentWinCondition()(state.current_state) state.current_state.IsWon()
? GREEN ? GREEN
: (state.current_state.restricted ? DARKGRAY : LIGHTGRAY)); : (state.current_state.restricted ? DARKGRAY : LIGHTGRAY));
for (int x = 0; x < state.current_state.width; ++x) { for (int x = 0; x < state.current_state.width; ++x) {

56
src/state.cpp
View File

@ -1,7 +1,8 @@
#include "state.hpp" #include "state.hpp"
#include "config.hpp" #include "config.hpp"
#include "presets.hpp"
#include <fstream>
#include <ios>
#include <raymath.h> #include <raymath.h>
#ifdef TRACY #ifdef TRACY
@ -9,30 +10,61 @@
#include <tracy/Tracy.hpp> #include <tracy/Tracy.hpp>
#endif #endif
auto StateManager::ParsePresetFile(const std::string &preset_file) -> void {
std::ifstream file(preset_file);
if (!file) {
std::cout << "Preset file \"" << preset_file << "\" couldn't be loaded."
<< std::endl;
return;
}
std::string line;
std::vector<std::string> lines;
while (std::getline(file, line)) {
if (line.starts_with("F") || line.starts_with("R")) {
lines.push_back(line);
}
}
if (lines.size() == 0) {
std::cout << "Preset file \"" << preset_file << "\" couldn't be loaded."
<< std::endl;
return;
}
presets.clear();
for (const auto &preset : lines) {
presets.emplace_back(preset);
}
std::cout << "Loaded " << lines.size() << " presets." << std::endl;
}
auto StateManager::LoadPreset(int preset) -> void { auto StateManager::LoadPreset(int preset) -> void {
current_preset = preset; current_preset = preset;
current_state = CurrentGenerator()(); current_state = presets.at(current_preset);
ClearGraph(); ClearGraph();
edited = false; edited = false;
} }
auto StateManager::ResetState() -> void { auto StateManager::ResetState() -> void {
current_state = CurrentGenerator()(); current_state = presets.at(current_preset);
previous_state = current_state; previous_state = current_state;
if (edited) { if (edited) {
// We also need to clear the graph in case the state has been edited // We also need to clear the graph in case the state has been edited
// because the graph could contain states that are impossible to reach now. // because the graph could contain states that are impossible to reach
// now.
ClearGraph(); ClearGraph();
edited = false; edited = false;
} }
} }
auto StateManager::PreviousPreset() -> void { auto StateManager::PreviousPreset() -> void {
LoadPreset((generators.size() + current_preset - 1) % generators.size()); LoadPreset((presets.size() + current_preset - 1) % presets.size());
} }
auto StateManager::NextPreset() -> void { auto StateManager::NextPreset() -> void {
LoadPreset((current_preset + 1) % generators.size()); LoadPreset((current_preset + 1) % presets.size());
} }
auto StateManager::FillGraph() -> void { auto StateManager::FillGraph() -> void {
@ -62,7 +94,7 @@ auto StateManager::UpdateGraph() -> void {
} }
visited_states.insert(current_state); visited_states.insert(current_state);
if (win_conditions[current_preset](current_state)) { if (current_state.IsWon()) {
winning_states.insert(current_state); winning_states.insert(current_state);
} }
} }
@ -85,20 +117,12 @@ auto StateManager::ClearGraph() -> void {
auto StateManager::FindWinningStates() -> void { auto StateManager::FindWinningStates() -> void {
winning_states.clear(); winning_states.clear();
for (const auto &[state, mass] : states) { for (const auto &[state, mass] : states) {
if (CurrentWinCondition()(state)) { if (state.IsWon()) {
winning_states.insert(state); winning_states.insert(state);
} }
} }
} }
auto StateManager::CurrentGenerator() const -> StateGenerator {
return generators[current_preset];
}
auto StateManager::CurrentWinCondition() const -> WinCondition {
return win_conditions[current_preset];
}
auto StateManager::CurrentMassIndex() const -> std::size_t { auto StateManager::CurrentMassIndex() const -> std::size_t {
return states.at(current_state); return states.at(current_state);
} }