From 0223250c88712915cf9e843613671f768fda01fe Mon Sep 17 00:00:00 2001
From: CrispyPin <crispin@tasa.se>
Date: Mon, 14 Apr 2025 19:40:01 +0200
Subject: [PATCH] add brainfuck and deadfish levels

---
 CHANGELOG.md           |  3 ++-
 README.md              |  4 +---
 levels/chapter_05.json | 44 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 47 insertions(+), 4 deletions(-)
 create mode 100644 levels/chapter_05.json

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8b00185..6dbdfd5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,8 @@ Game store page: https://crispypin.itch.io/marble-machinations
 
 ## [unreleased]
 ### added
-- create "missing levels" section allowing access to solutions to levels that are no longer available
+- "weird machines" chapter with levels for [deadfish](https://esolangs.org/wiki/Deadfish) and [brainfuck](https://esolangs.org/wiki/Brainfuck)
+- "missing levels" section giving access to solutions to levels that are no longer available
 - click to collapse chapters in level list
 - input bindings for eraser (X), selection (B), blueprint list (Ctrl B), no tool (no default binding)
 ### fixed
diff --git a/README.md b/README.md
index b24b022..4808bb9 100644
--- a/README.md
+++ b/README.md
@@ -13,10 +13,8 @@ logic mostly like https://git.crispypin.cc/CrispyPin/marble
 ### features
 #### 0.3.x
 - more levels
-  - deadfish
-  - brainfuck
   - packet routing?
-  - game of life sim? (width;height;steps;grid -> grid)
+  - game of life sim (width;height;steps;grid -> grid)
 #### 0.4.0
 - UI layout engine
   - global scale setting
diff --git a/levels/chapter_05.json b/levels/chapter_05.json
new file mode 100644
index 0000000..e08eeb8
--- /dev/null
+++ b/levels/chapter_05.json
@@ -0,0 +1,44 @@
+{
+	"title": "5. Weird machines",
+	"levels": [
+		{
+			"id": "deadfish",
+			"name": "Deadfish",
+			"description": "Deadfish is a very small joke programming language. It is often used as a test program for other esoteric programming languages. Marble machinations is now one of them.\n\n There are four commands:\ni: increment the accumulator\nd: decrement the accumulator\ns: square the accumulator\no: output the accumulator\n\n if the value becomes -1 or 256, it should be set to zero.\n\nThe test cases are taken from esolangs.org/wiki/Deadfish",
+			"stages": [{
+				"input": "iiso",
+				"output": "4"
+			},{
+				"input": "iissso",
+				"output": "0"
+			},{
+				"input": "diissisdo",
+				"output": "288"
+			},{
+				"input": "iissisdddddddddddddddddddddddddddddddddo",
+				"output": "0"
+			}]
+		},
+		{
+			"id": "brainfuck",
+			"name": "Brainfuck",
+			"description": "The language brainfuck operates on a 'tape' of bytes, with a pointer that can be moved left and right. Level input is formatted as '<program>#<input>'.\n(separator # is 35)\n\n+ (43): increment\n- (45): decrement\n< (60): move left\n> (62): move right\n, (44): input\n. (46): output\n[ (91): skip to matching ] if current value is zero\n] (93): jump to matching [ if current value is not zero\n\nmaximum memory needed: 32 bytes\nlongest program: 106 commands",
+			"stages":[{
+				"input": ">><[]++++++++-.#",
+				"output": [7]
+			},{
+				"input": ",>,>,>,.<.<.<.#woem",
+				"output": "meow"
+			},{
+				"input": "++++[++++.]#",
+				"output": [8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168, 172, 176, 180, 184, 188, 192, 196, 200, 204, 208, 212, 216, 220, 224, 228, 232, 236, 240, 244, 248, 252, 0]
+			},{
+				"input": "-[>,]<+[-.<+]-#reverse cat program",
+				"output": "margorp tac esrever"
+			},{
+				"input": "++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.#",
+				"output": "Hello World!\n"
+			}]
+		}
+	]
+}
\ No newline at end of file