feat: New streamlined exit item (#455)

Co-authored-by: Dennis Ploeger <develop@dieploegers.de>

addons/escoria-core/design/esc_exit.svg

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="16px" height="16px" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <title>esc_exit</title>
+    <defs>
+        <linearGradient x1="32%" y1="0%" x2="68%" y2="100%" id="linearGradient-1">
+            <stop stop-color="#D4FF2A" offset="0%"></stop>
+            <stop stop-color="#81D135" offset="100%"></stop>
+        </linearGradient>
+        <linearGradient x1="36.7305357%" y1="0%" x2="63.2694643%" y2="100%" id="linearGradient-2">
+            <stop stop-color="#D4FF2A" offset="0%"></stop>
+            <stop stop-color="#81D135" offset="100%"></stop>
+        </linearGradient>
+    </defs>
+    <g id="esc_exit" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+        <g id="Group" transform="translate(4.000000, 2.000000)" fill-rule="nonzero">
+            <polygon id="Rectangle-Copy" fill="url(#linearGradient-1)" points="6 10 0 10 0 0 6 0"></polygon>
+            <path d="M7,0 L7,10 L0,10 L0,0 L7,0 Z M6,1 L1,1 L1,9 L6,9 L6,1 Z" id="Rectangle" fill="#1B2F0D"></path>
+        </g>
+        <g id="Group-Copy" transform="translate(4.000000, 2.000000)" fill-rule="nonzero">
+            <polygon id="Rectangle-Copy" fill="url(#linearGradient-2)" points="6 11.6468788 0 10 0 0 6 1.64687882"></polygon>
+            <path d="M7,1.92135862 L7,11.9213586 L0,10 L0,0 L7,1.92135862 Z M6,2.64687882 L1,1.2744798 L1,9.2744798 L6,10.6468788 L6,2.64687882 Z" id="Rectangle" fill="#1B2F0D"></path>
+        </g>
+    </g>
+</svg>

addons/escoria-core/game/core-scripts/esc_exit.gd

@@ -0,0 +1,43 @@
+# An item that streamlines exiting scenes
+extends ESCItem
+class_name ESCExit, "res://addons/escoria-core/design/esc_exit.svg"
+
+
+# Path to the target scene to change to
+export(String, FILE, "*.tscn") var target_scene = ""
+
+# Sound effect to play when changing the scene
+export(String, FILE, "*.ogg,*.mp3,*.wav") var switch_sound = ""
+
+
+func _enter_tree():
+	is_exit = true
+	player_orients_on_arrival = false
+
+
+func _ready():
+	call_deferred("_register_event")
+
+
+# Registers the exit_scene event based on the properties
+func _register_event():
+	if escoria.object_manager.has(self.global_id) and\
+			not "exit_scene" in escoria.object_manager.get_object(
+				self.global_id
+			).events:
+		var exit_scene_event_script = [
+			":exit_scene",
+		]
+		
+		if switch_sound != "":
+			exit_scene_event_script.append(
+				"play_snd %s" % switch_sound
+			)
+		
+		exit_scene_event_script.append("change_scene %s" % target_scene)
+		
+		var exit_scene_event = escoria.esc_compiler.compile(
+			exit_scene_event_script
+		).events["exit_scene"]
+		escoria.object_manager.get_object(self.global_id)\
+				.events["exit_scene"] = exit_scene_event