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

plugins/d2r/reader.go

@@ -0,0 +1,47 @@
+// Screen reader for D2R — extracts game information from screenshots.
+package d2r
+
+import (
+	"image"
+
+	"git.cloonar.com/openclawd/iso-bot/pkg/plugin"
+)
+
+// Reader implements plugin.ScreenReader for D2R.
+type Reader struct {
+	config Config
+}
+
+// NewReader creates a D2R screen reader.
+func NewReader(config Config) *Reader {
+	return &Reader{config: config}
+}
+
+// FindItems detects item labels on the ground.
+func (r *Reader) FindItems(frame image.Image) []plugin.DetectedItem {
+	// TODO: Detect colored item text labels
+	// - Gold text = unique
+	// - Green text = set
+	// - Yellow text = rare
+	// - Orange text = runeword / crafted
+	// - White/grey = normal/magic
+	return nil
+}
+
+// FindPortal locates a town portal on screen.
+func (r *Reader) FindPortal(frame image.Image) (image.Point, bool) {
+	// TODO: Detect blue portal glow
+	return image.Point{}, false
+}
+
+// FindEnemies detects enemy positions.
+func (r *Reader) FindEnemies(frame image.Image) []image.Point {
+	// TODO: Enemy health bar detection
+	return nil
+}
+
+// ReadText extracts text from a screen region.
+func (r *Reader) ReadText(frame image.Image, region image.Rectangle) string {
+	// TODO: OCR on the given region
+	return ""
+}