commit 9da919078554247fba0dcd1ff7640e5d525aa9e8
parent 1d58bf4f94cc457209db8618b369094fa4a927d1
Author: Brian C. Lane <bcl@brianlane.com>
Date: Wed, 15 Apr 2020 06:05:25 -0700
Add parsing plaintext files
This will fall back to plaintext parsing if it cannot detect the type of
file, it assumes . is a dead cell and any other character is the live
cell.
Diffstat:
| M | main.go | | | 40 | +++++++++++++++++++++++++++++++++++++--- |
1 file changed, 37 insertions(+), 3 deletions(-)
diff --git a/main.go b/main.go
@@ -144,8 +144,8 @@ func (g *LifeGame) InitializeCells() {
g.cells, err = ParseLife105(scanner)
} else if strings.HasPrefix(header, "#Life 1.06") {
log.Fatal("Life 1.06 file format is not supported")
- } else if strings.HasPrefix(header, "!Name:") {
- g.cells, err = ParsePlaintext(scanner)
+ } else {
+ g.cells, err = ParsePlaintext(header, scanner)
}
if err != nil {
@@ -274,9 +274,43 @@ func ParseLife105(scanner *bufio.Scanner) ([][]*Cell, error) {
// ParsePlaintext pattern file
// The header has already been read from the buffer when this is called
-func ParsePlaintext(scanner *bufio.Scanner) ([][]*Cell, error) {
+// This is a bit more generic than the spec, skip lines starting with !
+// and assume the pattern is . for dead cells any anything else for live.
+func ParsePlaintext(name string, scanner *bufio.Scanner) ([][]*Cell, error) {
cells := make([][]*Cell, cfg.Rows, cfg.Columns)
+ // Fill it with dead cells first
+ for y := 0; y < cfg.Rows; y++ {
+ for x := 0; x < cfg.Columns; x++ {
+ c := &Cell{x: x, y: y}
+ cells[y] = append(cells[y], c)
+ }
+ }
+
+ var x, y int
+
+ // Move x, y to center of field
+ x = cfg.Columns / 2
+ y = cfg.Rows / 2
+
+ for scanner.Scan() {
+ line := scanner.Text()
+ if strings.HasPrefix(line, "!") {
+ continue
+ } else {
+ // Parse the line, . is dead, anything else is alive.
+ xLine := x
+ for _, c := range line {
+ if c != '.' {
+ cells[y][xLine].alive = true
+ cells[y][xLine].aliveNext = true
+ }
+ xLine = xLine + 1
+ }
+ y = y + 1
+ }
+ }
+
return cells, nil
}
