Flashlight and basic character controls

shaders/light_shader.gdshader

@@ -0,0 +1,7 @@
+shader_type canvas_item;
+
+uniform sampler2D screen_texture : hint_screen_texture, repeat_disable, filter_nearest;
+
+void fragment() {
+        COLOR = vec4(vec3(1,1,1) - texture(screen_texture, SCREEN_UV).rgb, 1);
+}

shaders/light_shader_material.tres

@@ -0,0 +1,6 @@
+[gd_resource type="ShaderMaterial" load_steps=2 format=3 uid="uid://xuvxq5hy1dt"]
+
+[ext_resource type="Shader" path="res://shaders/light_shader.gdshader" id="1_o757w"]
+
+[resource]
+shader = ExtResource("1_o757w")