1 files changed, 66 insertions, 0 deletions
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..865243b
--- /dev/null
+++ b/main.go
@@ -0,0 +1,66 @@
+package main
+
+import (
+	"brline/lines"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+)
+
+const imagesize = 0x1f4
+
+func main() {
+
+	log.SetFlags(0)
+	flag.Usage = flagUsage
+
+	xa := flag.Int("xa", 0, "x coordinate of point a")
+	ya := flag.Int("ya", 0, "y coordinate of point a")
+	xb := flag.Int("xb", 0, "x coordinate of point b")
+	yb := flag.Int("yb", 0, "y coordinate of point b")
+	ot := flag.String("pt", "br_resualt.png", "output png file to save results")
+
+	flag.Parse()
+
+	if *xa < 0 || *xa > 19 || *xb < 0 || *xb > 19 || *ya < 0 || *ya > 19 || *yb < 0 || *yb > 19 {
+		log.Fatalf("fatal error: %v", "bad input, please use coordinates 0 upto 19")
+	}
+
+	img, err := lines.NewBreLine(imagesize, *ot)
+	if err != nil {
+		log.Fatalf("fatal error: %v", err)
+	}
+
+	img.DrawMesh()
+	img.BresenhamLine(*xa, *ya, *xb, *yb)
+
+	if err := img.WriteToFile(); err != nil {
+		log.Fatalf("fatal error: %v", err)
+	}
+}
+
+func flagUsage() {
+	fmt.Printf(`usage of bresenham line simulator:
+%v options...
+
+options:
+  --pt  <file>      named png file to save bresenham output
+                    default path for this file is br_resualt.png
+
+  --xa  <uint>      x coordinate of starting point
+  --xb  <uint>      x coordinate of ending point
+
+  --ya  <uint>      y coordinate of starting point
+  --yb  <uint>      y coordinate of ending point
+
+example:
+   %v --pt mytest.png --xa 8 --ya 3 --xb 2 --yb 10
+
+
+Copyright (c) 2022 snix.ir, All rights reserved.
+Developed BY <Sina Ghaderi> sina@snix.ir
+This work is licensed under the terms of GNU General Public license.
+Github: github.com/sina-ghaderi and Source: git.snix.ir
+`, os.Args[0], os.Args[0])
+}