1 files changed, 74 insertions, 0 deletions
diff --git a/internal/game/sys_construction.go b/internal/game/sys_construction.go
new file mode 100644
index 0000000..06713cd
--- /dev/null
+++ b/internal/game/sys_construction.go
@@ -0,0 +1,74 @@
+package game
+
+import (
+	"fmt"
+
+	"thehouseoficarus/internal/net"
+	"thehouseoficarus/internal/player"
+)
+
+func (g *Game) processSawmill(sess *net.Session, p *player.Player) {
+	logTypes := map[string]struct {
+		plankID string
+		cost    int
+		name    string
+	}{
+		"logs":          {"planks", 5, "regular planks"},
+		"oak_logs":      {"oak_planks", 10, "oak planks"},
+		"teak_logs":     {"teak_planks", 20, "teak planks"},
+		"mahogany_logs": {"mahogany_planks", 40, "mahogany planks"},
+	}
+
+	totalCost := 0
+	totalPlanks := 0
+	type plankResult struct {
+		plankID string
+		qty     int
+	}
+
+	var results []plankResult
+
+	for logID, info := range logTypes {
+		qty := p.CountItem(logID)
+		if qty == 0 {
+			continue
+		}
+		cost := qty * info.cost
+		totalCost += cost
+		totalPlanks += qty
+		results = append(results, plankResult{info.plankID, qty})
+		p.RemoveItem(logID, qty)
+	}
+
+	if totalPlanks == 0 {
+		sess.WriteLine("You don't have any logs to process.")
+		return
+	}
+
+	if p.Credits < totalCost {
+		sess.WriteLine(fmt.Sprintf("You need %d credits to process all your logs (you have %d).", totalCost, p.Credits))
+		return
+	}
+
+	p.Credits -= totalCost
+
+	processed := 0
+	for _, r := range results {
+		for i := 0; i < r.qty; i++ {
+			freeSlot := p.FirstFreeSlot()
+			if freeSlot == -1 {
+				g.World.AddGroundItem(p.RoomID, r.plankID, r.qty-i)
+				break
+			}
+			p.SetInvSlot(freeSlot, &player.InventorySlot{ItemID: r.plankID, Quantity: 1})
+			processed++
+		}
+	}
+
+	g.AccountStore.SaveCharacter(p)
+
+	sess.WriteLine(fmt.Sprintf("The sawmill operator processes your logs into %d planks for %d credits.", processed, totalCost))
+	if processed < totalPlanks {
+		sess.WriteLine(fmt.Sprintf("Your inventory is full. The remaining %d planks fall to the ground.", totalPlanks-processed))
+	}
+}