rule110 exampel

examples/rule110.zr

@@ -0,0 +1,38 @@
+func rule110_step[state: Array] : Array
+    let new_state: Array = Array.new()
+
+    for i in 0:Array.size(state)
+        let left: Bool = false
+        if i - 1 >= 0
+            left = Array.nth(state, i-1)
+        let center: Bool = Array.nth(state, i)
+        let right: Bool = false
+        if i + 1 < Array.size(state)
+            right = Array.nth(state, i+1)
+
+        Array.push(new_state, !((!left && !center && !right) || (left && !center && !right) || (left && center && right)))
+
+    return new_state
+
+func to_str[state: Array]: String
+    // TODO: very leaky
+    let o: String = ""
+    for i in 0:Array.size(state)
+        if Array.nth(state, i)
+            o = concat(o, "#")
+        else
+            o = concat(o, " ")
+    return o
+
+func main[] : I64
+    let SIZE: I64 = 60
+
+    let state: Array = Array.new()
+    for i in 0:SIZE
+        Array.push(state, false)
+    Array.push(state, true)
+
+    print(to_str(state))
+    for i in 0:SIZE
+        state = rule110_step(state)
+        print(to_str(state))

test.zr

@@ -1,5 +1,4 @@
 func run_test[x: String] : I64
-    // TODO: escape sequences
     printf("\033[93mBuilding %s...\033[0m", x)
     let cmd: String = concat("./target/release/zern examples/", x)
 
@@ -23,6 +22,4 @@ func main[] : I64
 
     let files: Array = OS.listdir("examples/")
     for i in 0:Array.size(files)
-        let file: String = Array.nth(files, i)
-        run_test(file)
-        free(file)
+        run_test(Array.nth(files, i))