Merge branch '44-change-grid-data-structure-to-list' into 'master'
Resolve "Change Grid data structure to List" Closes #44 See merge request marty.oehme/cellular-automata!12
This commit is contained in:
commit
9c37f87045
5 changed files with 448 additions and 214 deletions
10
dart_test.yaml
Normal file
10
dart_test.yaml
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
platforms: [chrome]
|
||||
|
||||
tags:
|
||||
nobrowser:
|
||||
|
||||
bad:
|
||||
|
||||
sad:
|
||||
|
||||
happy:
|
||||
|
|
@ -1,7 +1,7 @@
|
|||
import 'dart:html' as html;
|
||||
import 'dart:math';
|
||||
|
||||
import 'package:rules_of_living/src/Grid.dart';
|
||||
import 'package:rules_of_living/src/Simulation.dart';
|
||||
|
||||
class Engine {
|
||||
// Elapsed Time Counter - useful for Safety Timeout
|
||||
|
|
@ -36,7 +36,7 @@ class Engine {
|
|||
void set gridSize(Point<int> value) {
|
||||
if (value.x <= 0 || value.y <= 0)
|
||||
throw ArgumentError("grid size must not be smaller than 1");
|
||||
_grid = Grid(value.x, value.y);
|
||||
_grid = Simulation(value.x, value.y);
|
||||
}
|
||||
|
||||
num _updateLag = 0.0;
|
||||
|
|
@ -48,11 +48,11 @@ class Engine {
|
|||
/// be used if no canvas was defined at engine creation and it should be
|
||||
/// rendered later.
|
||||
html.CanvasElement canvas;
|
||||
Grid _grid;
|
||||
Simulation _grid;
|
||||
bool running = false;
|
||||
|
||||
Engine([x = 100, y = 100, this.canvas]) {
|
||||
_grid = Grid(x, y);
|
||||
_grid = Simulation(x, y);
|
||||
|
||||
_elapsed.start();
|
||||
_grid.addPattern(amount: 15, dispersal: 5);
|
||||
|
|
@ -70,7 +70,7 @@ class Engine {
|
|||
}
|
||||
|
||||
void clear() {
|
||||
_grid = new Grid(gridSize.x, gridSize.y);
|
||||
_grid = new Simulation(gridSize.x, gridSize.y);
|
||||
running = false;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,222 +1,68 @@
|
|||
import 'dart:html' as html;
|
||||
import 'dart:math' as math;
|
||||
import 'dart:core';
|
||||
import 'dart:math';
|
||||
|
||||
import 'package:rules_of_living/src/Cell.dart';
|
||||
import 'package:rules_of_living/src/Rule.dart';
|
||||
import 'package:collection/collection.dart';
|
||||
|
||||
enum CellPattern { SpaceShip, Blinker }
|
||||
class Grid<E> extends DelegatingList<E> {
|
||||
final List<E> _internal;
|
||||
final width;
|
||||
final height;
|
||||
|
||||
class Grid {
|
||||
final int w;
|
||||
final int h;
|
||||
final List<List<Cell>> map;
|
||||
Grid(int width, int height) : this._(List<E>(width * height), width, height);
|
||||
|
||||
bool _dirty = true;
|
||||
bool _renderEdges = true;
|
||||
Grid.fill(int width, int height, E fillValue)
|
||||
: this._(List<E>.filled(width * height, fillValue), width, height);
|
||||
|
||||
int _startingSeed;
|
||||
int _x;
|
||||
int _y;
|
||||
int _amount;
|
||||
int _dispersal;
|
||||
CellPattern _pattern;
|
||||
Grid.from(Grid<E> l)
|
||||
: this._(List<E>.from(l.getRange(0, l.length)), l.width, l.height);
|
||||
|
||||
Grid(int w, int h)
|
||||
: this.w = w,
|
||||
this.h = h,
|
||||
this.map = new List() {
|
||||
map.addAll(_buildGrid(w, h));
|
||||
Grid.fromList(List<E> l, int width) : this._(l, width, l.length ~/ width);
|
||||
|
||||
print("Grid creation finished");
|
||||
Grid._(l, int w, int h)
|
||||
: _internal = l,
|
||||
width = w,
|
||||
height = h,
|
||||
super(l);
|
||||
|
||||
/// Return element at coordinate position
|
||||
///
|
||||
/// Returns the corresponding element after checking the parameters
|
||||
/// for the correct constraints along the width and height of the grid.
|
||||
/// Throws [RangeError] if outside of constraints. Preferred method
|
||||
/// to access elements via coordinates.
|
||||
E get(int x, int y) {
|
||||
int i = toIndex(x, y);
|
||||
if (i >= length || x > width - 1) throw RangeError.index(i, this);
|
||||
return _internal[i];
|
||||
}
|
||||
|
||||
void reset() {
|
||||
map.setAll(0, _buildGrid(w, h));
|
||||
if (_startingSeed != null)
|
||||
addPattern(
|
||||
pattern: _pattern,
|
||||
dispersal: _dispersal,
|
||||
amount: _amount,
|
||||
seed: _startingSeed,
|
||||
x: _x,
|
||||
y: _y);
|
||||
_dirty = true;
|
||||
/// Sets element at coordinate position
|
||||
///
|
||||
/// Sets the corresponding element to the [E] parameter [value] passed in.
|
||||
/// Checks against the grid size constraints beforehand and throws
|
||||
/// [RangeError] if outside of constraints. Preferred method to set
|
||||
/// elements via coordinates.
|
||||
void set(int x, int y, E value) {
|
||||
int i = toIndex(x, y);
|
||||
if (i >= length || x > width - 1) throw RangeError.index(i, this);
|
||||
_internal[i] = value;
|
||||
}
|
||||
|
||||
void addPattern(
|
||||
{CellPattern pattern,
|
||||
int x,
|
||||
int y,
|
||||
int amount,
|
||||
int dispersal,
|
||||
int seed}) {
|
||||
_startingSeed = seed ?? DateTime.now().millisecondsSinceEpoch;
|
||||
math.Random rng = new math.Random(_startingSeed);
|
||||
_x = x;
|
||||
_y = y;
|
||||
_amount = amount ?? rng.nextInt(20);
|
||||
_dispersal = dispersal ?? 10;
|
||||
_pattern = pattern;
|
||||
int cx = x ?? rng.nextInt(w ~/ 3) + (w ~/ 3);
|
||||
int cy = y ?? rng.nextInt(h ~/ 3) + (h ~/ 3);
|
||||
switch (pattern) {
|
||||
// Two blocks, offset
|
||||
// ##
|
||||
// ##
|
||||
case CellPattern.Blinker:
|
||||
setCellState(cx, cy, true);
|
||||
setCellState(cx + 1, cy, true);
|
||||
setCellState(cx, cy + 1, true);
|
||||
setCellState(cx + 1, cy + 1, true);
|
||||
/// Calculate list index from coordinates
|
||||
///
|
||||
/// Can be used to get the correct index from coordinates passed in.
|
||||
/// Will only calculate the index, not take into consideration any grid size
|
||||
/// constraints etc; use [get] for that (generally recommended).
|
||||
int toIndex(int x, int y) => (x < 0 || y < 0)
|
||||
? throw RangeError("Coordinates for Grid Indexing must not be negative.")
|
||||
: y * width + x;
|
||||
|
||||
setCellState(cx + 2, cy + 2, true);
|
||||
setCellState(cx + 3, cy + 2, true);
|
||||
setCellState(cx + 2, cy + 3, true);
|
||||
setCellState(cx + 3, cy + 3, true);
|
||||
break;
|
||||
// A 'gliding' Spaceship
|
||||
// #
|
||||
// #
|
||||
// ###
|
||||
case CellPattern.SpaceShip:
|
||||
setCellState(1 + cx, 0 + cy, true);
|
||||
setCellState(2 + cx, 1 + cy, true);
|
||||
setCellState(2 + cx, 2 + cy, true);
|
||||
setCellState(1 + cx, 2 + cy, true);
|
||||
setCellState(0 + cx, 2 + cy, true);
|
||||
break;
|
||||
default:
|
||||
int sanityCheck = 0;
|
||||
for (var i = 0; i < (_amount); i++) {
|
||||
sanityCheck++;
|
||||
getCellState(cx, cy)
|
||||
? i--
|
||||
: setCellState(cx + rng.nextInt(_dispersal),
|
||||
cy + rng.nextInt(_dispersal), true);
|
||||
if (sanityCheck > 100 && sanityCheck > i * 3) break;
|
||||
}
|
||||
break;
|
||||
}
|
||||
_dirty = true;
|
||||
}
|
||||
|
||||
void setCellState(int x, int y, bool state) {
|
||||
if (y < map.length && x < map[y].length) map[y][x].state = state;
|
||||
}
|
||||
|
||||
bool getCellState(int x, int y) {
|
||||
if (y < map.length && x < map[y].length) return map[y][x].state;
|
||||
return null;
|
||||
}
|
||||
|
||||
List<List<Cell>> _buildGrid(int w, int h) {
|
||||
print("grid being created");
|
||||
List<List<Cell>> grid = new List(h);
|
||||
// GENERAL RULE LAYOUT
|
||||
Rule threeTrue = new Rule((int n) {
|
||||
if (n == 3) return true;
|
||||
return false;
|
||||
});
|
||||
Rule twoTrue = new Rule((int n) {
|
||||
if (n == 2) return true;
|
||||
return false;
|
||||
});
|
||||
|
||||
// DEBUG RULE TESTING FOR PATTERNS
|
||||
Rule coagSurvive = new Rule((int n) {
|
||||
if (n == 1) return true;
|
||||
return false;
|
||||
});
|
||||
Rule coagBirth = new Rule((int n) {
|
||||
if (n == 1) return true;
|
||||
return false;
|
||||
});
|
||||
|
||||
for (int y = 0; y < h; y++) {
|
||||
grid[y] = new List(w);
|
||||
for (int x = 0; x < w; x++) {
|
||||
// GIVES RULES FOR CONWAY GAME OF LIFE BY DEFAULT S23/B3
|
||||
Cell cell = new Cell();
|
||||
// cell.surviveRules.add(twoTrue);
|
||||
cell.surviveRules.add(threeTrue);
|
||||
cell.surviveRules.add(twoTrue);
|
||||
cell.birthRules.add(threeTrue);
|
||||
|
||||
grid[y][x] = cell;
|
||||
}
|
||||
}
|
||||
return grid;
|
||||
}
|
||||
|
||||
bool update() {
|
||||
bool stateChanges = false;
|
||||
for (int y = 0; y < h; y++) {
|
||||
for (int x = 0; x < w; x++) {
|
||||
// DEFAULTS TO CONWAY GAME OF LIFE RANGE OF ONE
|
||||
map[y][x].update(getSurroundingNeighbors(x, y, 1));
|
||||
}
|
||||
}
|
||||
for (int y = 0; y < h; y++) {
|
||||
for (int x = 0; x < w; x++) {
|
||||
Cell c = map[y][x];
|
||||
if (c.state != c.nextState) stateChanges = true;
|
||||
c.advanceState();
|
||||
|
||||
if (!_dirty && map[y][x].dirty) _dirty = true;
|
||||
}
|
||||
}
|
||||
return stateChanges;
|
||||
}
|
||||
|
||||
int getSurroundingNeighbors(int x, int y, int range) {
|
||||
int count = 0;
|
||||
for (int iy = y - range; iy <= y + range; iy++) {
|
||||
for (int ix = x - range; ix <= x + range; ix++) {
|
||||
if (ix > 0 &&
|
||||
iy > 0 &&
|
||||
iy < map.length &&
|
||||
ix < map[iy].length &&
|
||||
map[iy][ix].state == true &&
|
||||
!(x == ix && y == iy)) {
|
||||
count++;
|
||||
}
|
||||
}
|
||||
}
|
||||
return count;
|
||||
}
|
||||
|
||||
void render(html.CanvasElement canvas, [num interp]) {
|
||||
// only renders if any cells changed between renders
|
||||
if (!_dirty) return;
|
||||
|
||||
html.CanvasRenderingContext2D ctx = canvas.getContext('2d');
|
||||
int brickW = (canvas.width ~/ map[0].length);
|
||||
int brickH = (canvas.height ~/ map.length);
|
||||
ctx.clearRect(0, 0, canvas.width, canvas.height);
|
||||
|
||||
for (int y = 0; y < map.length; y++) {
|
||||
for (int x = 0; x < map[y].length; x++) {
|
||||
if (_renderEdges) {
|
||||
ctx.setStrokeColorRgb(100, 100, 100);
|
||||
ctx.strokeRect(x * brickW, y * brickH, brickW, brickH);
|
||||
}
|
||||
|
||||
Cell c = map[y][x];
|
||||
if (c.state == true)
|
||||
ctx.setFillColorRgb(155, 155, 255);
|
||||
else
|
||||
ctx.setFillColorRgb(0, 0, 0);
|
||||
ctx.fillRect(x * brickW, y * brickH, brickW, brickH);
|
||||
}
|
||||
}
|
||||
|
||||
_dirty = false;
|
||||
}
|
||||
|
||||
void set renderEdges(bool on) {
|
||||
_renderEdges = on;
|
||||
_dirty = true;
|
||||
}
|
||||
|
||||
bool get renderEdges => _renderEdges;
|
||||
/// Calculate coordinates from list index
|
||||
///
|
||||
/// Calculates the 2-D array coordinates from the corresponding list index
|
||||
/// passed in. Relies on grid width to calculate coordinates. Does not check
|
||||
/// against grid size constraints; use [set] for that (generally recommended).
|
||||
Point<int> toCoordinates(int index) => (index < 0)
|
||||
? throw RangeError("Index for Grid Coordinates must not be negative")
|
||||
: Point<int>(index % width, index ~/ width);
|
||||
}
|
||||
|
|
|
|||
189
lib/src/Simulation.dart
Normal file
189
lib/src/Simulation.dart
Normal file
|
|
@ -0,0 +1,189 @@
|
|||
import 'dart:html' as html;
|
||||
import 'dart:math' as math;
|
||||
|
||||
import 'package:rules_of_living/src/Cell.dart';
|
||||
import 'package:rules_of_living/src/Grid.dart';
|
||||
import 'package:rules_of_living/src/Rule.dart';
|
||||
|
||||
enum CellPattern { SpaceShip, Blinker }
|
||||
|
||||
class Simulation {
|
||||
final Grid<Cell> map;
|
||||
|
||||
bool _dirty = true;
|
||||
bool _renderEdges = true;
|
||||
|
||||
int _startingSeed;
|
||||
int _x;
|
||||
int _y;
|
||||
int _amount;
|
||||
int _dispersal;
|
||||
CellPattern _pattern;
|
||||
|
||||
int get w => map.width;
|
||||
int get h => map.height;
|
||||
|
||||
Simulation(int w, int h) : this.map = new Grid(w, h) {
|
||||
for (int i = 0; i < map.length; i++) {
|
||||
map[i] = _getGOLCell();
|
||||
}
|
||||
print("Grid creation finished");
|
||||
}
|
||||
|
||||
Cell _getGOLCell([bool defaultState = false]) {
|
||||
Cell cell = Cell(defaultState);
|
||||
Rule threeTrue = new Rule((int n) {
|
||||
if (n == 3) return true;
|
||||
return false;
|
||||
});
|
||||
Rule twoTrue = new Rule((int n) {
|
||||
if (n == 2) return true;
|
||||
return false;
|
||||
});
|
||||
cell.surviveRules.add(twoTrue);
|
||||
cell.surviveRules.add(threeTrue);
|
||||
cell.birthRules.add(threeTrue);
|
||||
return cell;
|
||||
}
|
||||
|
||||
void reset() {
|
||||
map.setAll(0, List.filled(map.length, _getGOLCell()));
|
||||
if (_startingSeed != null)
|
||||
addPattern(
|
||||
pattern: _pattern,
|
||||
dispersal: _dispersal,
|
||||
amount: _amount,
|
||||
seed: _startingSeed,
|
||||
x: _x,
|
||||
y: _y);
|
||||
_dirty = true;
|
||||
}
|
||||
|
||||
void addPattern(
|
||||
{CellPattern pattern,
|
||||
int x,
|
||||
int y,
|
||||
int amount,
|
||||
int dispersal,
|
||||
int seed}) {
|
||||
_startingSeed = seed ?? DateTime.now().millisecondsSinceEpoch;
|
||||
math.Random rng = new math.Random(_startingSeed);
|
||||
_x = x;
|
||||
_y = y;
|
||||
_amount = amount ?? rng.nextInt(20);
|
||||
_dispersal = dispersal ?? 10;
|
||||
_pattern = pattern;
|
||||
int cx = x ?? rng.nextInt(map.width ~/ 3) + (map.width ~/ 3);
|
||||
int cy = y ?? rng.nextInt(map.height ~/ 3) + (map.height ~/ 3);
|
||||
switch (pattern) {
|
||||
// Two blocks, offset
|
||||
// ##
|
||||
// ##
|
||||
case CellPattern.Blinker:
|
||||
setCellState(cx, cy, true);
|
||||
setCellState(cx + 1, cy, true);
|
||||
setCellState(cx, cy + 1, true);
|
||||
setCellState(cx + 1, cy + 1, true);
|
||||
|
||||
setCellState(cx + 2, cy + 2, true);
|
||||
setCellState(cx + 3, cy + 2, true);
|
||||
setCellState(cx + 2, cy + 3, true);
|
||||
setCellState(cx + 3, cy + 3, true);
|
||||
break;
|
||||
// A 'gliding' Spaceship
|
||||
// #
|
||||
// #
|
||||
// ###
|
||||
case CellPattern.SpaceShip:
|
||||
setCellState(1 + cx, 0 + cy, true);
|
||||
setCellState(2 + cx, 1 + cy, true);
|
||||
setCellState(2 + cx, 2 + cy, true);
|
||||
setCellState(1 + cx, 2 + cy, true);
|
||||
setCellState(0 + cx, 2 + cy, true);
|
||||
break;
|
||||
default:
|
||||
int sanityCheck = 0;
|
||||
for (var i = 0; i < (_amount); i++) {
|
||||
sanityCheck++;
|
||||
getCellState(cx, cy)
|
||||
? i--
|
||||
: setCellState(cx + rng.nextInt(_dispersal),
|
||||
cy + rng.nextInt(_dispersal), true);
|
||||
if (sanityCheck > 100 && sanityCheck > i * 3) break;
|
||||
}
|
||||
break;
|
||||
}
|
||||
_dirty = true;
|
||||
}
|
||||
|
||||
void setCellState(int x, int y, bool state) {
|
||||
if (y < map.height && x < map.width) map.get(x, y).state = state;
|
||||
}
|
||||
|
||||
bool getCellState(int x, int y) {
|
||||
if (y < map.height && x < map.width) return map.get(x, y).state;
|
||||
return null;
|
||||
}
|
||||
|
||||
bool update() {
|
||||
bool stateChanges = false;
|
||||
|
||||
for (int i = 0; i < map.length; i++) {
|
||||
math.Point p = map.toCoordinates(i);
|
||||
map[i].update(getSurroundingNeighbors(p.x, p.y, 1));
|
||||
}
|
||||
// TODO when implementing changeSet we can remove this second loop and add to changeSet in the first
|
||||
map.forEach((Cell el) {
|
||||
if (el.state != el.nextState) stateChanges = true;
|
||||
el.advanceState();
|
||||
});
|
||||
stateChanges ? _dirty = true : false;
|
||||
return stateChanges;
|
||||
}
|
||||
|
||||
int getSurroundingNeighbors(int x, int y, int range) {
|
||||
int count = 0;
|
||||
for (int ix = -range + x; ix <= range + x; ix++) {
|
||||
for (int iy = -range + y; iy <= range + y; iy++) {
|
||||
if (ix >= 0 &&
|
||||
iy >= 0 &&
|
||||
ix < map.width &&
|
||||
iy < map.height &&
|
||||
map.get(ix, iy).state == true &&
|
||||
!(x == ix && y == iy)) count++;
|
||||
}
|
||||
}
|
||||
return count;
|
||||
}
|
||||
|
||||
void render(html.CanvasElement canvas, [num interp]) {
|
||||
// only renders if any cells changed between renders
|
||||
if (!_dirty) return;
|
||||
|
||||
html.CanvasRenderingContext2D ctx = canvas.getContext('2d');
|
||||
int brickW = (canvas.width ~/ map.width);
|
||||
int brickH = (canvas.height ~/ map.height);
|
||||
ctx.clearRect(0, 0, canvas.width, canvas.height);
|
||||
for (int i = 0; i < map.length; i++) {
|
||||
math.Point p = map.toCoordinates(i);
|
||||
if (_renderEdges) {
|
||||
ctx.setStrokeColorRgb(100, 100, 100);
|
||||
ctx.strokeRect(p.x * brickW, p.y * brickH, brickW, brickH);
|
||||
}
|
||||
|
||||
if (map[i].state == true)
|
||||
ctx.setFillColorRgb(155, 155, 255);
|
||||
else
|
||||
ctx.setFillColorRgb(0, 0, 0);
|
||||
ctx.fillRect(p.x * brickW, p.y * brickH, brickW, brickH);
|
||||
}
|
||||
_dirty = false;
|
||||
}
|
||||
|
||||
void set renderEdges(bool on) {
|
||||
_renderEdges = on;
|
||||
_dirty = true;
|
||||
}
|
||||
|
||||
bool get renderEdges => _renderEdges;
|
||||
}
|
||||
189
test/src/grid_test.dart
Normal file
189
test/src/grid_test.dart
Normal file
|
|
@ -0,0 +1,189 @@
|
|||
import 'dart:math';
|
||||
|
||||
import 'package:rules_of_living/src/Grid.dart';
|
||||
import 'package:test/test.dart';
|
||||
|
||||
@Tags(const ["nobrowser"])
|
||||
void main() {
|
||||
group("Instantiation", () {
|
||||
List<String> l;
|
||||
setUp(() {
|
||||
l = [
|
||||
"Hey",
|
||||
"you",
|
||||
"me",
|
||||
"together",
|
||||
"Hello",
|
||||
"World",
|
||||
"I",
|
||||
"am",
|
||||
"ready."
|
||||
];
|
||||
});
|
||||
test("gets created with the correct length for given quadratic gridsize",
|
||||
() {
|
||||
Grid sut = Grid(3, 3);
|
||||
expect(sut.length, 9);
|
||||
}, tags: const ["happy"]);
|
||||
test("gets created with the correct length for given rectangular gridsize",
|
||||
() {
|
||||
Grid sut = Grid(87, 85);
|
||||
expect(sut.length, 7395);
|
||||
}, tags: const ["happy"]);
|
||||
group(".from", () {
|
||||
test("copies the content of another grid on .from Constructor call", () {
|
||||
Grid original = Grid(2, 2);
|
||||
original[0] = "Hey";
|
||||
original[1] = "you";
|
||||
original[2] = "me";
|
||||
original[3] = "together";
|
||||
|
||||
Grid sut = Grid.from(original);
|
||||
expect(sut, containsAllInOrder(["Hey", "you", "me", "together"]));
|
||||
}, tags: const ["happy"]);
|
||||
test("copies the length of another grid on .from Constructor call", () {
|
||||
Grid original = Grid(2, 2);
|
||||
original[0] = "Hey";
|
||||
original[1] = "you";
|
||||
original[2] = "me";
|
||||
original[3] = "together";
|
||||
|
||||
Grid sut = Grid.from(original);
|
||||
expect(sut.length, 4);
|
||||
}, tags: const ["happy"]);
|
||||
});
|
||||
group(".fromList", () {
|
||||
test("sets the length for list passed in on .fromList Constructor call",
|
||||
() {
|
||||
Grid sut = Grid.fromList(l, 3);
|
||||
|
||||
expect(sut.length, 9);
|
||||
}, tags: const ["happy"]);
|
||||
test("sets the contents of list passed in on .fromList Constructor call",
|
||||
() {
|
||||
Grid sut = Grid.fromList(l, 3);
|
||||
|
||||
expect(sut[3], "together");
|
||||
}, tags: const ["happy"]);
|
||||
test(
|
||||
"sets the correct height for list passed in on .fromList Constructor call",
|
||||
() {
|
||||
Grid sut = Grid.fromList(l, 3);
|
||||
|
||||
expect(sut.width, 3);
|
||||
}, tags: const ["happy"]);
|
||||
});
|
||||
group(".fill", () {
|
||||
test("fills list with results of function passed in", () {
|
||||
Grid<String> sut = Grid.fill(3, 3, "testValue");
|
||||
expect(
|
||||
sut,
|
||||
containsAllInOrder([
|
||||
"testValue",
|
||||
"testValue",
|
||||
"testValue",
|
||||
"testValue",
|
||||
"testValue",
|
||||
"testValue",
|
||||
"testValue",
|
||||
"testValue",
|
||||
"testValue"
|
||||
]));
|
||||
}, tags: const ["happy"]);
|
||||
});
|
||||
});
|
||||
group("toIndex", () {
|
||||
Grid sut;
|
||||
setUp(() {
|
||||
sut = Grid(3, 3);
|
||||
});
|
||||
test("throws RangeError on negative x argument", () {
|
||||
expect(() => sut.toIndex(-1, 2), throwsA(isRangeError));
|
||||
}, tags: const ["bad"]);
|
||||
test("throws RangeError on negative y argument", () {
|
||||
expect(() => sut.toIndex(2, -1), throwsA(isRangeError));
|
||||
}, tags: const ["bad"]);
|
||||
test("calculates correct index for first element", () {
|
||||
expect(sut.toIndex(0, 0), equals(0));
|
||||
}, tags: const ["happy"]);
|
||||
test("calculates correct index for last element", () {
|
||||
expect(sut.toIndex(2, 2), equals(8));
|
||||
}, tags: const ["happy"]);
|
||||
test("calculates correct index for element on first row", () {
|
||||
expect(sut.toIndex(2, 0), equals(2));
|
||||
}, tags: const ["happy"]);
|
||||
test("calculates correct index for example element", () {
|
||||
expect(sut.toIndex(1, 1), equals(4));
|
||||
}, tags: const ["happy"]);
|
||||
});
|
||||
group("coordinates getter", () {
|
||||
Grid sut;
|
||||
setUp(() {
|
||||
sut = Grid(3, 3);
|
||||
sut.setAll(0,
|
||||
["Hey", "you", "me", "together", "Hello", null, "I", "am", "ready."]);
|
||||
});
|
||||
test("returns null if no element exists at the position requested", () {
|
||||
expect(sut.get(2, 1), null);
|
||||
}, tags: const ["sad"]);
|
||||
test("throws RangeError if requesting element outside of grid width", () {
|
||||
expect(() => sut.get(4, 1), throwsRangeError);
|
||||
}, tags: const ["bad"]);
|
||||
test("throws RangeError if requesting element outside of grid height", () {
|
||||
expect(() => sut.get(1, 4), throwsRangeError);
|
||||
}, tags: const ["bad"]);
|
||||
test("returns element at correct index", () {
|
||||
expect(sut.get(1, 0), "you");
|
||||
}, tags: const ["happy"]);
|
||||
test("returns last element correctly", () {
|
||||
expect(sut.get(2, 2), "ready.");
|
||||
}, tags: const ["happy"]);
|
||||
});
|
||||
group("toCoords", () {
|
||||
Grid sut;
|
||||
setUp(() {
|
||||
sut = Grid(3, 3);
|
||||
});
|
||||
test("throws RangeError on negative index argument", () {
|
||||
expect(() => sut.toCoordinates(-1), throwsA(isRangeError));
|
||||
}, tags: const ["bad"]);
|
||||
test("calculates correct index for first element", () {
|
||||
expect(sut.toCoordinates(0), equals(Point(0, 0)));
|
||||
}, tags: const ["happy"]);
|
||||
test("calculates correct index for last element", () {
|
||||
expect(sut.toCoordinates(8), equals(Point(2, 2)));
|
||||
}, tags: const ["happy"]);
|
||||
test("calculates correct index for last element on first row", () {
|
||||
expect(sut.toCoordinates(2), equals(Point(2, 0)));
|
||||
}, tags: const ["happy"]);
|
||||
test("calculates correct index for example element", () {
|
||||
expect(sut.toCoordinates(6), equals(Point(0, 2)));
|
||||
}, tags: const ["happy"]);
|
||||
});
|
||||
group("coordinates setter", () {
|
||||
Grid<String> sut;
|
||||
setUp(() {
|
||||
sut = Grid(3, 3);
|
||||
sut.setAll(0,
|
||||
["Hey", "you", "me", "together", "Hello", null, "I", "am", "ready."]);
|
||||
});
|
||||
test("sets element to null if passing null in", () {
|
||||
sut.set(1, 1, null);
|
||||
expect(sut.get(1, 1), null);
|
||||
}, tags: const ["sad"]);
|
||||
test("throws RangeError if setting element outside of grid width", () {
|
||||
expect(() => sut.set(4, 1, "testValue"), throwsRangeError);
|
||||
}, tags: const ["bad"]);
|
||||
test("throws RangeError if setting element outside of grid height", () {
|
||||
expect(() => sut.set(1, 4, "testValue"), throwsRangeError);
|
||||
}, tags: const ["bad"]);
|
||||
test("sets element at correct index", () {
|
||||
sut.set(1, 0, "testValue");
|
||||
expect(sut.get(1, 0), "testValue");
|
||||
}, tags: const ["happy"]);
|
||||
test("sets last element correctly", () {
|
||||
sut.set(2, 2, "testValue");
|
||||
expect(sut.get(2, 2), "testValue");
|
||||
}, tags: const ["happy"]);
|
||||
});
|
||||
}
|
||||
Loading…
Reference in a new issue