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Love 2024-09-04 22:24:05 +02:00
parent ecccca869d
commit e85b72191f
1 changed files with 5 additions and 0 deletions
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src/life.cpp
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@ -129,6 +129,7 @@ int gridAliveNeighbors(Grid<Cell> &grid, int row, int col) {
return alive; return alive;
} }
/** /**
* Run one Game of Life tick. * Run one Game of Life tick.
* Cells (X) live and die by the following rules: * Cells (X) live and die by the following rules:
@ -144,12 +145,16 @@ void gridTick(Grid<Cell> &grid) {
for (int col = 0; col < grid.numCols(); col++) { for (int col = 0; col < grid.numCols(); col++) {
int alive = gridAliveNeighbors(grid, row, col); int alive = gridAliveNeighbors(grid, row, col);
// A cell with 1 or fewer neighbours dies.
if (alive == 1) if (alive == 1)
nextGrid.set(row, col, Cell::DEAD); nextGrid.set(row, col, Cell::DEAD);
// Locations with 2 neighbours remain stable.
else if (alive == 2) else if (alive == 2)
nextGrid.set(row, col, grid.get(row, col)); nextGrid.set(row, col, grid.get(row, col));
// Locations with 3 neighbours will create life.
else if (alive == 3) else if (alive == 3)
nextGrid.set(row, col, Cell::ALIVE); nextGrid.set(row, col, Cell::ALIVE);
// A cell with 4 or more neighbours dies.
else if (alive == 4) else if (alive == 4)
nextGrid.set(row, col, Cell::DEAD); nextGrid.set(row, col, Cell::DEAD);
} }