update docker

Author: tasnimzotder

Diff for: Makefile

@@ -5,9 +5,12 @@ docker-build:
 	docker build -t $(DOCKER_IMAGE_NAME) .
 
 docker-run:
-	docker run -it --rm -v $(PWD)/frames:/app/frames $(DOCKER_IMAGE_NAME) sh -c "make local-run"
+	docker run -it --rm -v $(PWD)/frames:/app/frames $(DOCKER_IMAGE_NAME) sh -c "make local-build && ./main $(size)"
+
+local-build:
+	go build -o main . && chmod +x main
 
 local-run:
-	go build -o main . && chmod +x main && ./main
+	./main $(size)
 
-.PHONY: docker-build docker-run local-run
+.PHONY: docker-build docker-run local-build local-run

Diff for: README.md

@@ -7,15 +7,19 @@
 1. Using docker
 
 ```bash
-make docker-build && make docker-run
+make docker-build && make docker-run size=128
 ```
 
+Note: The `size` parameter is optional. The default value is 64. Change it to resize the animation.
+
 2. Using local environment
 
 ```bash
 make local-run
 ```
 
+Note: Please don't forget to resize the font size of your terminal to fit the animation.
+
 ## Credits
 
 - [GIPHY - Be Animated](https://giphy.com/)

Diff for: assets/demo.gif

@@ -7,12 +7,14 @@ import (
 	"image/gif"
 	"log"
 	"os"
+	"strconv"
 	"time"
 )
 
 const (
-	CHARS    = "      .:-=+*#%@"
-	REQ_SIZE = 64
+	CHARS = "   .:-=+*#%@"
+	// chars add more detail
+	//CHARS = "      .':-~=+*#%@"
 )
 
 // reduce the size of the gif to 100x100
@@ -60,10 +62,10 @@ func readGif(fileName string) *gif.GIF {
 	return gifImage
 }
 
-func readFrames(fileName string) []*image.Paletted {
+func readFrames(fileName string, reqSize int) []*image.Paletted {
 	gifImage := readGif(fileName)
 	// resize the gif
-	gifImage.Image = resizeFrames(gifImage.Image, REQ_SIZE, REQ_SIZE)
+	gifImage.Image = resizeFrames(gifImage.Image, reqSize, reqSize)
 
 	return gifImage.Image
 }
@@ -83,8 +85,22 @@ func clearConsole() {
 }
 
 func main() {
+	reqSize := 64
+	args := os.Args[1:]
+
+	if len(args) > 0 {
+		newReqSize := 0
+
+		for _, arg := range args {
+			val, _ := strconv.Atoi(arg)
+			newReqSize += val
+		}
+
+		reqSize = newReqSize
+	}
+
 	fileName := "gifs/tom.gif"
-	gifImage := readFrames(fileName)
+	gifImage := readFrames(fileName, reqSize)
 
 	frameValues := make([][]int, len(gifImage))
 
@@ -110,7 +126,7 @@ func main() {
 
 			fmt.Printf("\n\n")
 
-			time.Sleep(30 * time.Millisecond)
+			time.Sleep(40 * time.Millisecond)
 			clearConsole()
 		}