From c1203fc897638d1dc6a0a800aec1adff1c18f997 Mon Sep 17 00:00:00 2001
From: metamuffin <metamuffin@disroot.org>
Date: Tue, 16 Dec 2025 01:35:08 +0100
Subject: Animated black/white hole transitions

---
 client/map/map.gd                 |  5 +++--
 client/map/tiles/player_portal.gd |  9 +++++++++
 client/map/tiles/portal.gd        | 20 +++++++++++++++++---
 client/map/tiles/tile.gd          |  6 ++++++
 4 files changed, 35 insertions(+), 5 deletions(-)

(limited to 'client')

diff --git a/client/map/map.gd b/client/map/map.gd
index 800cb57d..4dd76ec4 100644
--- a/client/map/map.gd
+++ b/client/map/map.gd
@@ -40,9 +40,10 @@ func get_tile_instance(pos: Vector2i) -> Tile:
 	else: return null
 
 func set_tile(pos: Vector2i, tilename = null, neighbors: Array = [null,null,null,null]):
+	var inst = get_tile_instance(pos)
+	if inst and tilename: if inst.change(tilename): return # instance handled change itself
 	_remove_tile(pos)
-	if tilename != null:
-		_add_tile(pos, tilename, neighbors)
+	if tilename: _add_tile(pos, tilename, neighbors)
 	if autoflush: flush()
 
 func _add_tile(pos: Vector2i, tilename: String, neighbors: Array) -> Tile:
diff --git a/client/map/tiles/player_portal.gd b/client/map/tiles/player_portal.gd
index e722a7ee..222f84ee 100644
--- a/client/map/tiles/player_portal.gd
+++ b/client/map/tiles/player_portal.gd
@@ -21,3 +21,12 @@ func _init(ctx: TileFactory.TileCC, type: bool):
 	super(ctx)
 	model.configure(0.4, type)
 	base.add_child(model)
+
+func change(tn: String) -> bool:
+	if tn == "white-hole":
+		model.target_type = 1.
+		return true
+	if tn == "black-hole":
+		model.target_type = -1.
+		return true
+	return false
diff --git a/client/map/tiles/portal.gd b/client/map/tiles/portal.gd
index 961a8615..75da4980 100644
--- a/client/map/tiles/portal.gd
+++ b/client/map/tiles/portal.gd
@@ -16,7 +16,21 @@
 class_name PortalModel
 extends Node3D
 
+var target_type = 0.
+var current_type = 0.
+var target_size = 0.
+var current_size = 0.
+var mat: ShaderMaterial
+
 func configure(size: float, type: bool):
-	var mat: ShaderMaterial = $Mesh.get_active_material(0)
-	mat.set_shader_parameter("size", size)
-	mat.set_shader_parameter("type", 1. if type else -1.)
+	mat = $Mesh.get_active_material(0)
+	target_type = 1. if type else -1.
+	target_size = size
+
+func _process(delta: float) -> void:
+	if abs(target_type - current_type) > 0.01:
+		current_type = G.interpolate(current_type, target_type, delta * 10.)
+		mat.set_shader_parameter("type", current_type)
+	if abs(target_size - current_size) > 0.01:
+		current_size = G.interpolate(current_size, target_size, delta * 3.)
+		mat.set_shader_parameter("size", current_size)
diff --git a/client/map/tiles/tile.gd b/client/map/tiles/tile.gd
index 27d791c3..b4928aa1 100644
--- a/client/map/tiles/tile.gd
+++ b/client/map/tiles/tile.gd
@@ -94,3 +94,9 @@ func take_item() -> Item:
 
 func get_base_mesh():
 	return null
+
+# Called when about to be changed to different tile
+# returning false deletes the tile and replaces it normally
+# returning true means this function applies the change
+func change(_name: String) -> bool:
+	return false
-- 
cgit v1.3