From d4ba62ce1cd608d751a9d5db2e30608687a2e58e Mon Sep 17 00:00:00 2001
From: Joop Kiefte <ikojba@gmail.com>
Date: Mon, 31 Aug 2020 04:44:24 +0200
Subject: Testing movement -- adding movement cases

---
 main.go | 29 +++++++++++++++++++++++------
 1 file changed, 23 insertions(+), 6 deletions(-)

(limited to 'main.go')

diff --git a/main.go b/main.go
index 20ffc61..fb8d913 100644
--- a/main.go
+++ b/main.go
@@ -64,12 +64,13 @@ func (f Field) String() (output string) {
 func main() {
 	var f Field
 	fmt.Print("\033[2J") // Clear screen
-	for i := 0; i < 200; i++ {
-		if (i+i/10)%2 == 0 {
-			f[i/10][i%10] = true
-		}
-	}
+	p := Point{}
+	var oldp Point
 	for {
+		fmt.Print("\033[2J") // Clear screen
+		f[oldp.Y][oldp.X] = false
+		oldp = p
+		f[p.Y][p.X] = true
 		fmt.Print("\033[0;0H") // Position to 0,0
 		fmt.Println(f.String())
 		t, _ := term.Open("/dev/tty")
@@ -80,10 +81,26 @@ func main() {
 		t.Close()
 		switch key[0] {
 		case 27: // Escape, read the arrow key pressed
-			fmt.Print(string(key[2]))
+			switch key[2] {
+			case 65: // Up
+				p.Y = (p.Y + 20 - 1)%20
+			case 66: // Down
+				p.Y = (p.Y + 20 + 1)%20
+			case 67: // Right
+				p.X = (p.X + 10 + 1)%10
+			case 68: // Left
+				p.X = (p.X + 10 - 1)%10
+			default:
+				fmt.Println("...escape, escape!")
+				return
+			}
 		case 'q':
 			fmt.Println("...that was exciting!")
 			return
+		default:
+			if key[0] != 0 {
+				fmt.Print(string(key[0]))
+			}
 		}
 	}
 }
-- 
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