1 files changed, 116 insertions, 0 deletions
diff --git a/internal/game/core_utils.go b/internal/game/core_utils.go
new file mode 100644
index 0000000..409422e
--- /dev/null
+++ b/internal/game/core_utils.go
@@ -0,0 +1,116 @@
+package game
+
+import (
+	"fmt"
+	"math/rand"
+	"strconv"
+	"strings"
+
+	"thehouseoficarus/internal/net"
+	"thehouseoficarus/internal/player"
+	"thehouseoficarus/internal/world"
+)
+
+func plural(n int) string {
+	if n == 1 {
+		return ""
+	}
+	return "s"
+}
+
+func parseQty(input string) (int, string) {
+	parts := strings.Fields(input)
+	if len(parts) > 1 {
+		if n, err := strconv.Atoi(parts[0]); err == nil && n > 0 {
+			return n, strings.Join(parts[1:], " ")
+		}
+	}
+	return 0, input
+}
+
+func parseChoiceIndex(s string) (int, error) {
+	var idx int
+	_, err := fmt.Sscanf(s, "%d", &idx)
+	return idx, err
+}
+
+func mobDisplayName(m *world.MobInstance, definite bool) string {
+	if m.Unique {
+		return m.Name
+	}
+	if definite {
+		return "the " + m.Name
+	}
+	return "a " + m.Name
+}
+
+func mobCombatLevel(m *world.MobInstance) int {
+	base := float64(m.Defense+m.MaxHP) / 4.0
+	melee := float64(m.Attack+m.Strength) / 4.0
+	ranged := float64(m.Ranged) * 3.0 / 8.0
+	science := float64(m.Science) * 3.0 / 8.0
+	best := melee
+	if ranged > best {
+		best = ranged
+	}
+	if science > best {
+		best = science
+	}
+	return int(base + best + 0.5)
+}
+
+func uniqueItemNames(matches []itemMatch) []string {
+	seen := make(map[string]bool)
+	var out []string
+	for _, m := range matches {
+		if !seen[m.Name] {
+			seen[m.Name] = true
+			out = append(out, m.Name)
+		}
+	}
+	return out
+}
+
+func (g *Game) showWhichOne(sess *net.Session, matches []itemMatch) {
+	sess.WriteLine("Which one?")
+	seen := make(map[string]bool)
+	for _, m := range matches {
+		if seen[m.Name] {
+			continue
+		}
+		seen[m.Name] = true
+		def, _ := g.ItemStore.Load(m.ID)
+		coloredName := g.itemColorize(sess, def, m.Name)
+		sess.WriteLine(fmt.Sprintf("  - %s", coloredName))
+	}
+}
+
+func randInt(max int) int {
+	if max <= 0 {
+		return 0
+	}
+	return rand.Intn(max)
+}
+
+func formatPickupList(sess *net.Session, picked []string) {
+	for i, name := range picked {
+		if i == len(picked)-1 {
+			sess.WriteLine(name)
+		} else if i == len(picked)-2 {
+			sess.Write(name + " and ")
+		} else {
+			sess.Write(name + ", ")
+		}
+	}
+}
+
+func (g *Game) newInventorySlot(itemID string, qty int) *player.InventorySlot {
+	slot := &player.InventorySlot{ItemID: itemID, Quantity: qty}
+	if def, err := g.ItemStore.Load(itemID); err == nil && def.MaxQuality > 0 {
+		slot.Quality = def.Quality
+		slot.MaxQuality = def.MaxQuality
+	}
+	return slot
+}
+
+