From 7bf94f765bd11c32086766dd522778a2017f0a3f Mon Sep 17 00:00:00 2001
From: kauri <kaurisoovali@gmail.com>
Date: Mon, 20 Sep 2021 15:47:15 +0300
Subject: [PATCH] Letters/numbers ok - #01

---
 ascii-art/ascii-art-reverse/inputfile.txt |  99 +++
 ascii-art/ascii-art-reverse/main.go       |  72 ++
 ascii-art/ascii-art-reverse/shadow.txt    | 855 ++++++++++++++++++++++
 3 files changed, 1026 insertions(+)
 create mode 100644 ascii-art/ascii-art-reverse/inputfile.txt
 create mode 100644 ascii-art/ascii-art-reverse/main.go
 create mode 100644 ascii-art/ascii-art-reverse/shadow.txt

diff --git a/ascii-art/ascii-art-reverse/inputfile.txt b/ascii-art/ascii-art-reverse/inputfile.txt
new file mode 100644
index 0000000..81fded6
--- /dev/null
+++ b/ascii-art/ascii-art-reverse/inputfile.txt
@@ -0,0 +1,99 @@
+
+  _|  _| 
+_|  _|   
+         
+         
+         
+         
+         
+         
+
+         
+_|_|_|   
+_|    _| 
+_|_|_|   
+_|       
+_|       
+         
+         
+
+_| 
+_| 
+_| 
+_| 
+_| 
+_| 
+_| 
+_| 
+
+         
+    _|_| 
+  _|     
+_|_|_|_| 
+  _|     
+  _|     
+         
+         
+
+                   
+                   
+_|      _|      _| 
+_|      _|      _| 
+  _|  _|  _|  _|   
+    _|      _|     
+                   
+                   
+
+           
+_|         
+  _|       
+    _|     
+      _|   
+        _| 
+           
+           
+
+         
+         
+_|_|_|_| 
+    _|   
+  _|     
+_|_|_|_| 
+         
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+
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+_|       
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+_|       
+_|_|_|_| 
+         
+         
+
+           
+_|_|    _| 
+_|_|  _|   
+    _|     
+  _|  _|_| 
+_|    _|_| 
+           
+           
+
+         
+_|  _|   
+_|  _|   
+_|_|_|_| 
+    _|   
+    _|   
+         
+         
+
+           
+        _| 
+      _|   
+    _|     
+  _|       
+_|         
+           
+           
diff --git a/ascii-art/ascii-art-reverse/main.go b/ascii-art/ascii-art-reverse/main.go
new file mode 100644
index 0000000..ad4d4c3
--- /dev/null
+++ b/ascii-art/ascii-art-reverse/main.go
@@ -0,0 +1,72 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strings"
+)
+
+// so far letters and numbers work, symbols and punctuation are not ok
+// input file has data vertically, I assume it must be switches to horisontal...?
+// example command: go run . --reverse=inputfile.txt
+
+func main() {
+	args_slice := os.Args[1:]
+	reference_file := "shadow.txt"
+	var file_name string
+
+	for i, name := range args_slice {
+		if strings.Contains(name, "--reverse=") { // looking for flag
+			file_name = name[10:]
+			break
+		}
+		if len(args_slice)-1 == i {
+			fmt.Println("EX: go run . something standard --reverse=<fileName>")
+		}
+	}
+
+	input, err1 := ioutil.ReadFile(file_name) // reading graphic input file
+	text_slices := strings.Split(string(input), "\n")
+
+	if err1 != nil {
+		fmt.Println("file does not exist")
+		os.Exit(1)
+	}
+
+	reference, err2 := ioutil.ReadFile(reference_file) // reading example file standard-shadow-thinkerboy
+	reference_slices := strings.Split(string(reference), "\n")
+
+	if err2 != nil {
+		fmt.Println("reference not found")
+		os.Exit(2)
+	}
+
+	indexes := make([]int, 0) // contains indexes to reverse-calculate ascii values
+
+	for x := 0; x < len(text_slices)-9; x += 9 {
+		for i := 0; i < len(reference_slices)-9; i += 9 {
+			for y := 0; y < 9; y++ {
+				if text_slices[x+y] == reference_slices[i+y] && y != 8 {
+					continue
+				} else if y == 8 && text_slices[y] == reference_slices[i+y] {
+					indexes = append(indexes, i)
+					break
+				} else {
+					break
+				}
+			}
+		}
+	}
+
+	// fmt.Println(len(indexes))
+	// fmt.Println(indexes)
+
+	var str_output string
+
+	for id := range indexes {
+		str_output += string(byte(indexes[id]/9 + 32))
+	}
+
+	fmt.Println(str_output)
+}
diff --git a/ascii-art/ascii-art-reverse/shadow.txt b/ascii-art/ascii-art-reverse/shadow.txt
new file mode 100644
index 0000000..d7cdb43
--- /dev/null
+++ b/ascii-art/ascii-art-reverse/shadow.txt
@@ -0,0 +1,855 @@
+
+      
+      
+      
+      
+      
+      
+      
+      
+
+   
+_| 
+_| 
+_| 
+   
+_| 
+   
+   
+
+_|  _| 
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+       
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+       
+       
+       
+       
+
+           
+  _|  _|   
+_|_|_|_|_| 
+  _|  _|   
+_|_|_|_|_| 
+  _|  _|   
+           
+           
+
+       
+  _|   
+_|_|_| 
+_|_|   
+  _|_| 
+_|_|_| 
+  _|   
+       
+
+           
+_|_|    _| 
+_|_|  _|   
+    _|     
+  _|  _|_| 
+_|    _|_| 
+           
+           
+
+           
+  _|       
+_|  _|     
+  _|_|  _| 
+_|    _|   
+  _|_|  _| 
+           
+           
+
+  _| 
+_|   
+     
+     
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+     
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+
+  _| 
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+
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+  _|  _|   
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+
+                   
+                   
+_|      _|      _| 
+_|      _|      _| 
+  _|  _|  _|  _|   
+    _|      _|     
+                   
+                   
+
+         
+         
+_|    _| 
+  _|_|   
+_|    _| 
+_|    _| 
+         
+         
+
+         
+         
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+_|    _| 
+_|    _| 
+  _|_|_| 
+      _| 
+  _|_|   
+
+         
+         
+_|_|_|_| 
+    _|   
+  _|     
+_|_|_|_| 
+         
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+
+    _| 
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+    _| 
+       
+
+_| 
+_| 
+_| 
+_| 
+_| 
+_| 
+_| 
+_| 
+
+_|     
+  _|   
+  _|   
+    _| 
+  _|   
+  _|   
+_|     
+       
+
+  _|  _| 
+_|  _|   
+         
+         
+         
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+         
+