Day 2 Part 2 (Lua [StarfallEx])

day2/d2p2.lua

@@ -0,0 +1,46 @@
+--@name aoc2023d2p1
+--@author logan2611
+--@client
+
+-- Loads the input data into a table
+games = string.explode("\n", string.trim(file.read("aoc2023d2input.txt")))
+
+sum = 0
+
+max = {
+    red = 12,
+    green = 13,
+    blue = 14
+}
+
+print(max["red"])
+
+for i, v in ipairs(games) do
+    local isValid = true
+    
+    -- Get rid of the useless index (Lua is 1 indexed, so this works out really nicely)
+    local curGame = string.gsub(string.trim(v),"^Game .*: ","")
+    
+    local pulls = string.explode("; ", string.trim(curGame))
+    for _, pull in ipairs(pulls) do
+        local blocks = string.explode(", ", string.trim(pull))
+        for _, block in ipairs(blocks) do
+            local block_ = string.explode(" ", block)
+            local num = tonumber(block_[1])
+            local color = block_[2]
+            
+            --print("Game "..i.." ("..pull..") "..num.." "..color)
+            
+            if num > max[color] then
+                print(num)
+                isValid = false
+            end
+        end
+    end
+    
+    if isValid then
+        sum = sum + i
+    end
+end
+
+print(sum)