Cleaning better and using chars with more contrast.

conway/Makefile

@@ -4,20 +4,18 @@ TARGETS := \
 	$(LIBS) \
 	github.com/meatballhat/box-o-sand/conway/conways-game-of-life
 
-
 all: deps build
 
-
 build: test
 	go install -x $(TARGETS)
 
+clean:
+	go clean -x -i $(TARGETS)
 
 test:
 	go test -x -v -test.parallel=4 $(LIBS)
 
-
 deps:
 	go get -x $(TARGETS)
 
-
-.PHONY: all build test deps
+.PHONY: all build clean deps test

conway/game_of_life.go

@@ -10,6 +10,11 @@ import (
 	"time"
 )
 
+const (
+	DEAD_CELL = "■"
+	LIVE_CELL = " "
+)
+
 func init() {
 	rand.Seed(time.Now().UTC().UnixNano())
 }
@@ -284,7 +289,7 @@ func (state *GameState) String() string {
 	for y := 0; y < height; y++ {
 		var cells []string
 		for x := 0; x < width; x++ {
-			stringVal := "■"
+			stringVal := DEAD_CELL
 
 			value, err := state.Get(x, y)
 			if err != nil {
@@ -292,7 +297,7 @@ func (state *GameState) String() string {
 			}
 
 			if value == 1 {
-				stringVal = "□"
+				stringVal = LIVE_CELL
 			}
 			cells = append(cells, stringVal)
 		}