From 227bdc5b3c7ba5c5579a34d8cde31cf33265394e Mon Sep 17 00:00:00 2001
From: Salvatore Giordano <salvatoregiordanoo@gmail.com>
Date: Tue, 21 Nov 2017 17:44:02 +0100
Subject: [PATCH] Ref#45 add gif rate support

---
 README.md | 1 +
 main.go   | 7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index ebe8af4b..d0453627 100644
--- a/README.md
+++ b/README.md
@@ -47,6 +47,7 @@ Small input images should be used (like 256x256px). You don't need the detail an
 | `j` | 0 | number of parallel workers (default uses all cores) |
 | `v` | off | verbose output |
 | `vv` | off | very verbose output |
+| `int` | 50 | interval between frame in a gif in millis (works only with .gif output)|
 
 ### Output Formats
 
diff --git a/main.go b/main.go
index 75d776c2..292f6312 100644
--- a/main.go
+++ b/main.go
@@ -29,6 +29,7 @@ var (
 	Nth        int
 	Repeat     int
 	V, VV      bool
+	Interval   int
 )
 
 type flagArray []string
@@ -75,6 +76,7 @@ func init() {
 	flag.IntVar(&Repeat, "rep", 0, "add N extra shapes per iteration with reduced search")
 	flag.BoolVar(&V, "v", false, "verbose")
 	flag.BoolVar(&VV, "vv", false, "very verbose")
+	flag.IntVar(&Interval, "int", 50, "interval between frame in a gif")
 }
 
 func errorMessage(message string) bool {
@@ -111,6 +113,9 @@ func main() {
 			ok = errorMessage("ERROR: number argument must be > 0")
 		}
 	}
+	if Interval < 0 {
+		ok = errorMessage("ERROR: negative frame interval not accepted")
+	}
 	if !ok {
 		fmt.Println("Usage: primitive [OPTIONS] -i input -o output -n count")
 		flag.PrintDefaults()
@@ -195,7 +200,7 @@ func main() {
 						check(primitive.SaveFile(path, model.SVG()))
 					case ".gif":
 						frames := model.Frames(0.001)
-						check(primitive.SaveGIFImageMagick(path, frames, 50, 250))
+						check(primitive.SaveGIFImageMagick(path, frames, Interval, 250))
 					}
 				}
 			}