P1 iron: nuggets, ore, clay, kiln, smelter, forge, iron tools and arrows, lantern, tool wear and repair

scripts/world/resource_node.gd

@@ -36,8 +36,50 @@ var _orig_shapes: Array = []        ## [CollisionShape3D, shape, position] befor
 signal depleted_now(node: Node)
 
 func display_name() -> String:
+	if is_iron:
+		return "Rusty boulder (iron ore)"
 	return "Tree" if kind == "tree" else "Boulder"
 
+# --- rusty boulders (iron ore) ---------------------------------------------------
+
+var is_iron := false
+var ore_vis: Node3D               ## the rust streaks, following the boulder's instance
+static var _patch_mesh: ArrayMesh
+
+## Turns this boulder into a rusty one: iron ore when it breaks, and red-brown
+## streaks on its surface (`hull` = the rock mesh's points, unscaled).
+func make_iron(hull: PackedVector3Array) -> void:
+	is_iron = true
+	drops_final = {"stone": [2, 4], "iron_ore": [2, 4]}
+	chip_color = Color(0.55, 0.3, 0.18)
+	if DisplayServer.get_name() == "headless":
+		return
+	if _patch_mesh == null:
+		var n := FastNoiseLite.new()
+		n.seed = 5
+		n.frequency = 2.0
+		var st := ProcMesh._begin()
+		ProcMesh._blob(st, Vector3.ZERO, Vector3(0.13, 0.1, 0.018), n, 0.25, Color(0.48, 0.24, 0.12), RandomNumberGenerator.new(), 0)
+		_patch_mesh = ProcMesh._commit(st)
+	ore_vis = Node3D.new()
+	ore_vis.top_level = true
+	add_child(ore_vis)
+	# Streaks on the upper surface, spread out.
+	var up: Array = []
+	for q: Vector3 in hull:
+		if q.y > 0.15:
+			up.append(q)
+	up.sort_custom(func(a, b): return a.x + a.z * 0.37 < b.x + b.z * 0.37)
+	var mat := ItemDB.item_material()
+	for i in range(mini(6, up.size())):
+		var q: Vector3 = up[int(float(i) / 6.0 * up.size())]
+		var mi := MeshInstance3D.new()
+		mi.mesh = _patch_mesh
+		mi.material_override = mat
+		mi.transform = Transform3D(Basis.looking_at(-q.normalized(), Vector3.UP if absf(q.normalized().y) < 0.95 else Vector3.RIGHT), q * 0.97)
+		ore_vis.add_child(mi)
+	ore_vis.global_transform = base_xf
+
 func interact_prompt(player: Node) -> String:
 	var tool: Dictionary = ItemDB.get_item(player.held_item_id()).get("tool", {})
 	var verb := "Chop" if kind == "tree" else "Mine"
@@ -101,6 +143,8 @@ func _rock_xf() -> Transform3D:
 func _set_instance(xf: Transform3D) -> void:
 	if mmi != null and index >= 0:
 		mmi.multimesh.set_instance_transform(index, xf)
+	if ore_vis != null:
+		ore_vis.global_transform = xf   # (shrinks, shakes, hides and regrows with it)
 
 ## Restores saved damage when a world loads. hp <= 0 = already felled/mined
 ## (no animation, no drops).