bugfix: clear before next gen

main.go

@@ -11,7 +11,8 @@ import (
 func output(client *resty.Client, url string, width, height int, arr [][]Cell) {
 	goterm.MoveCursor(1, 4)
 	// Prepare instructions for matrix
-	instructions := make([]interface{}, 0)
+	instructions := make([]interface{}, 1)
+	instructions[0] = Clear{Endpoint: CLEAR}
 	// Append all live cells as pixel instructions
 	for j := 0; j < height; j++ {
 		for i := 0; i < width; i++ {

types.go

@@ -11,6 +11,7 @@ const (
 	UPDATE    Endpoint = "update"
 	PIXEL     Endpoint = "pixel"
 	COLOR     Endpoint = "color"
+	CLEAR     Endpoint = "clear"
 )
 
 type Rectangle struct {
@@ -21,6 +22,10 @@ type Rectangle struct {
 	Endpoint Endpoint `json:"endpoint"`
 }
 
+type Clear struct {
+	Endpoint Endpoint `json:"endpoint"`
+}
+
 type Update struct {
 	Endpoint Endpoint `json:"endpoint"`
 }