#3 - Card Slots

https://youtu.be/QmTXsm1Tohg?si=qiqjG2NL3vI_IrfP

Author: pb-413

assets/CardSlot.png

@@ -1,6 +1,7 @@
 extends Node2D
 
 const COLLISION_MASK_CARD = 1
+const COLLISION_MASK_CARD_SLOT = 2
 
 var card_being_dragged : Node2D
 var screen_size : Vector2
@@ -30,14 +31,21 @@ func _input(event: InputEvent) -> void:
 			if card:
 				start_drag(card)
 		else:
-			finish_drag()
+			if card_being_dragged:
+				finish_drag()
 
 func start_drag(card: Node2D):
 	card.scale = Vector2(1, 1)
 	card_being_dragged = card
 
 func finish_drag():
 	card_being_dragged.scale = Vector2(1.05, 1.05)
+	var card_slot_found = raycast_check_for_card_slot()
+	if card_slot_found and not card_slot_found.card_in_slot:
+		# Card dropped in empty slot.
+		card_being_dragged.position = card_slot_found.position
+		card_being_dragged.get_node("Area2D/CollisionShape2D").disabled = true
+		card_slot_found.card_in_slot = true
 	card_being_dragged = null
 
 
@@ -71,6 +79,19 @@ func highlight_card(card: Node2D, hovered: bool):
 		card.z_index = 1
 
 
+func raycast_check_for_card_slot() -> Variant:
+	var space_state = get_world_2d().direct_space_state
+	var parameters = PhysicsPointQueryParameters2D.new()
+	parameters.position = get_global_mouse_position()
+	parameters.collide_with_areas = true
+	parameters.collision_mask = COLLISION_MASK_CARD_SLOT
+	var result = space_state.intersect_point(parameters)
+	if result.size() > 0:
+		var slot : Node2D = result[0].collider.get_parent()
+		return slot
+	return null
+
+
 func raycast_check_for_card() -> Variant:
 	var space_state = get_world_2d().direct_space_state
 	var parameters = PhysicsPointQueryParameters2D.new()

project/CardManager.gd

@@ -0,0 +1,4 @@
+extends Node2D
+
+
+var card_in_slot = false

project/CardSlot.gd

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://fccvay6su1fs"
+path="res://.godot/imported/CardSlot.png-ce2a75163d8c7ecc316afc7cba9c1a17.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://CardSlot.png"
+dest_files=["res://.godot/imported/CardSlot.png-ce2a75163d8c7ecc316afc7cba9c1a17.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

project/CardSlot.png

@@ -0,0 +1,21 @@
+[gd_scene load_steps=4 format=3 uid="uid://cmc8cw3l15t6n"]
+
+[ext_resource type="Texture2D" uid="uid://fccvay6su1fs" path="res://CardSlot.png" id="1_gtpn6"]
+[ext_resource type="Script" path="res://CardSlot.gd" id="1_sedjj"]
+
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_ve5sy"]
+size = Vector2(178, 263)
+
+[node name="CardSlot" type="Node2D"]
+script = ExtResource("1_sedjj")
+
+[node name="CardSlotImage" type="Sprite2D" parent="."]
+texture = ExtResource("1_gtpn6")
+
+[node name="Area2D" type="Area2D" parent="."]
+collision_layer = 2
+collision_mask = 2
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="Area2D"]
+position = Vector2(0, -0.5)
+shape = SubResource("RectangleShape2D_ve5sy")

project/CardSlot.png.import

@@ -1,7 +1,8 @@
-[gd_scene load_steps=3 format=3 uid="uid://dct70tba5rujv"]
+[gd_scene load_steps=4 format=3 uid="uid://dct70tba5rujv"]
 
 [ext_resource type="PackedScene" uid="uid://ba127t8k4b0xh" path="res://Card.tscn" id="1_8uu4h"]
 [ext_resource type="Script" path="res://CardManager.gd" id="2_2bkmx"]
+[ext_resource type="PackedScene" uid="uid://cmc8cw3l15t6n" path="res://CardSlot.tscn" id="3_setnr"]
 
 [node name="Main" type="Node2D"]
 
@@ -13,3 +14,11 @@ position = Vector2(135, 189)
 
 [node name="Card2" parent="CardManager" instance=ExtResource("1_8uu4h")]
 position = Vector2(1018, 467)
+
+[node name="CardSlot" parent="." instance=ExtResource("3_setnr")]
+position = Vector2(402, 188)
+scale = Vector2(1.3, 1.3)
+
+[node name="CardSlot2" parent="." instance=ExtResource("3_setnr")]
+position = Vector2(695, 191)
+scale = Vector2(1.3, 1.3)