Rewrite to Go: engine, plugin system, D2R plugin, API, loot filter

plugins/d2r/detector.go

@@ -0,0 +1,77 @@
+// Game state detection for D2R.
+package d2r
+
+import (
+	"image"
+
+	"git.cloonar.com/openclawd/iso-bot/pkg/plugin"
+)
+
+// Detector implements plugin.GameDetector for D2R.
+type Detector struct {
+	config Config
+}
+
+// NewDetector creates a D2R state detector.
+func NewDetector(config Config) *Detector {
+	return &Detector{config: config}
+}
+
+// DetectState analyzes a screenshot and returns the current game state.
+func (d *Detector) DetectState(frame image.Image) plugin.GameState {
+	// Priority-based detection:
+	// 1. Check for loading screen
+	// 2. Check for main menu
+	// 3. Check for character select
+	// 4. Check for in-game (health orb visible)
+	// 5. Check for death screen
+
+	if d.isLoading(frame) {
+		return plugin.StateLoading
+	}
+	if d.isMainMenu(frame) {
+		return plugin.StateMainMenu
+	}
+	if d.isCharacterSelect(frame) {
+		return plugin.StateCharacterSelect
+	}
+	if d.isInGame(frame) {
+		vitals := d.ReadVitals(frame)
+		if vitals.HealthPct == 0 {
+			return plugin.StateDead
+		}
+		return plugin.StateInGame
+	}
+	return plugin.StateUnknown
+}
+
+// ReadVitals reads health and mana from the orbs.
+func (d *Detector) ReadVitals(frame image.Image) plugin.VitalStats {
+	// TODO: Analyze health/mana orb regions using color detection
+	return plugin.VitalStats{}
+}
+
+// IsInGame returns true if health orb is visible.
+func (d *Detector) IsInGame(frame image.Image) bool {
+	return d.isInGame(frame)
+}
+
+func (d *Detector) isLoading(frame image.Image) bool {
+	// TODO: Check for loading screen (mostly black with loading bar)
+	return false
+}
+
+func (d *Detector) isMainMenu(frame image.Image) bool {
+	// TODO: Template match main menu elements
+	return false
+}
+
+func (d *Detector) isCharacterSelect(frame image.Image) bool {
+	// TODO: Template match character select screen
+	return false
+}
+
+func (d *Detector) isInGame(frame image.Image) bool {
+	// TODO: Check if health orb region contains red pixels
+	return false
+}