feat(2019-day-02): run add, multiply, and terminate functions

Author: developher-net

2019/day-02/intcodeParser.js

@@ -0,0 +1,32 @@
+
+const add = ({ posIn1, posIn2, posOut, data }) => {
+  data[posOut] = data[posIn1] + data[posIn2]
+}
+
+const multiply = ({ posIn1, posIn2, posOut, data }) => {
+  data[posOut] = data[posIn1] * data[posIn2]
+}
+
+const terminate = ({ data }) => {
+  console.log('Reached terminator. Stopping.')
+}
+
+const step = ({ position, data }) => {
+  const opCodesMap = {
+    1: add,
+    2: multiply,
+    99: terminate
+  }
+  const segment = data.slice(position, position + 4)
+  // Run the correct opcode for the specified step
+  opCodesMap[data[position]]({
+    posIn1: segment[1],
+    posIn2: segment[2],
+    posOut: segment[3],
+    data
+  })
+}
+
+module.exports = {
+  step
+}