Used | Bitwise OR and ^= (Bitwise XOR) operators in calculating next Elementary Generation over Addition + and Subtraction -=

cobyj33 · cobyj33 · commit 3736d3cc71be · 2023-03-03T19:49:48.000Z
diff --git a/Cellular-Automata/Elementary.js b/Cellular-Automata/Elementary.js
@@ -84,18 +84,18 @@ export function getNextElementaryGeneration (generation, rule) {
   const RIGHT_DEAD = 1 // 001 in binary
 
   for (let i = 0; i < generation.length; i++) {
-    let neighborhoodValue = LEFT_DEAD + MIDDLE_DEAD + RIGHT_DEAD
+    let neighborhoodValue = LEFT_DEAD | MIDDLE_DEAD | RIGHT_DEAD
 
     if (i - 1 > 0 && generation[i - 1] === 1) {
-      neighborhoodValue -= LEFT_DEAD
+      neighborhoodValue ^= LEFT_DEAD
     }
 
     if (generation[i] === 1) {
-      neighborhoodValue -= MIDDLE_DEAD
+      neighborhoodValue ^= MIDDLE_DEAD
     }
 
     if (i + 1 < generation.length && generation[i + 1] === 1) {
-      neighborhoodValue -= RIGHT_DEAD
+      neighborhoodValue ^= RIGHT_DEAD
     }
 
     output[i] = ruleData[neighborhoodValue]

Original file line number	Diff line number	Diff line change
`@@ -84,18 +84,18 @@ export function getNextElementaryGeneration (generation, rule) {`
`84`	`84`	`const RIGHT_DEAD = 1 // 001 in binary`
`85`	`85`
`86`	`86`	`for (let i = 0; i < generation.length; i++) {`
`87`		`- let neighborhoodValue = LEFT_DEAD + MIDDLE_DEAD + RIGHT_DEAD`
	`87`	`+ let neighborhoodValue = LEFT_DEAD \| MIDDLE_DEAD \| RIGHT_DEAD`
`88`	`88`
`89`	`89`	`if (i - 1 > 0 && generation[i - 1] === 1) {`
`90`		`- neighborhoodValue -= LEFT_DEAD`
	`90`	`+ neighborhoodValue ^= LEFT_DEAD`
`91`	`91`	`}`
`92`	`92`
`93`	`93`	`if (generation[i] === 1) {`
`94`		`- neighborhoodValue -= MIDDLE_DEAD`
	`94`	`+ neighborhoodValue ^= MIDDLE_DEAD`
`95`	`95`	`}`
`96`	`96`
`97`	`97`	`if (i + 1 < generation.length && generation[i + 1] === 1) {`
`98`		`- neighborhoodValue -= RIGHT_DEAD`
	`98`	`+ neighborhoodValue ^= RIGHT_DEAD`
`99`	`99`	`}`
`100`	`100`
`101`	`101`	`output[i] = ruleData[neighborhoodValue]`