Added shield shader

game/entities/ships/abstract_ship.gd

@@ -108,13 +108,15 @@ func _add_weapon(weapon: AbstractWeapon, weapon_position: Vector2) -> void:
 	_weapons.append(weapon)
 
 
-func _on_shield_updated(value: int, _max_value: int) -> void:
+func _on_shield_updated(value: int, max_value: int) -> void:
 	shield_sprite.visible = value != 0
+	shield_sprite.material.set("shader_parameter/intensity", value/float(max_value))
 
 
-func _on_armor_updated(value: int, _max_value: int) -> void:
+func _on_armor_updated(value: int, max_value: int) -> void:
 	armor_sprite.visible = value != 0
+	armor_sprite.material.set("shader_parameter/intensity", value/float(max_value))
 
 
 func _on_hull_updated(_value: int, _max_value: int) -> void:
-	pass # Replace with function body.
+	pass

game/entities/ships/abstract_ship.tscn

@@ -1,9 +1,22 @@
-[gd_scene load_steps=4 format=3 uid="uid://jvyagshykmgb"]
+[gd_scene load_steps=7 format=3 uid="uid://jvyagshykmgb"]
 
 [ext_resource type="Script" uid="uid://cesibaqtrgotl" path="res://game/entities/ships/abstract_ship.gd" id="1_6isjb"]
+[ext_resource type="Shader" uid="uid://dwh22f35u5qqi" path="res://game/entities/ships/shield.gdshader" id="2_dokxo"]
 [ext_resource type="PackedScene" uid="uid://clkymhkv3cevm" path="res://game/health_system/health.tscn" id="2_xxtvk"]
 [ext_resource type="PackedScene" uid="uid://d2snum2pxc2ui" path="res://game/health_system/health_bar/heath_bar.tscn" id="3_l62e5"]
 
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_dokxo"]
+shader = ExtResource("2_dokxo")
+shader_parameter/speed = 0.0
+shader_parameter/scale = 20.0
+shader_parameter/intensity = 1.0
+
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_bkxo4"]
+shader = ExtResource("2_dokxo")
+shader_parameter/speed = 5.0
+shader_parameter/scale = 20.0
+shader_parameter/intensity = 1.0
+
 [node name="AbstractShip" type="CharacterBody2D"]
 disable_mode = 1
 motion_mode = 1
@@ -13,8 +26,10 @@ script = ExtResource("1_6isjb")
 [node name="ShipSprite" type="Sprite2D" parent="."]
 
 [node name="ArmorSprite" type="Sprite2D" parent="."]
+material = SubResource("ShaderMaterial_dokxo")
 
 [node name="ShieldSprite" type="Sprite2D" parent="."]
+material = SubResource("ShaderMaterial_bkxo4")
 
 [node name="CollisionPolygon2D" type="CollisionPolygon2D" parent="."]
 

game/entities/ships/shield.gdshader

@@ -0,0 +1,42 @@
+shader_type canvas_item;
+
+uniform float speed = 5.0;
+uniform float scale = 20.0;
+uniform float intensity = 1;
+
+float rand(vec2 coord) {
+    return fract(sin(dot(coord, vec2(12.9898, 78.233))) * 43758.5453);
+}
+
+float cellular(vec2 coord) {
+    vec2 i = floor(coord);
+    vec2 f = fract(coord);
+    
+    float min_dist = 1.0;
+    
+    for (int y = -1; y <= 1; y++) {
+        for (int x = -1; x <= 1; x++) {
+            vec2 neighbor = vec2(float(x), float(y));
+            vec2 point = vec2(rand(i + neighbor), rand(i + neighbor + vec2(1000.0)));
+            point = 0.5 * sin(TIME * speed + 6.2831 * point);
+            vec2 diff = neighbor + point - f;
+            float dist = length(diff);
+            min_dist = min(min_dist, dist);
+        }
+    }
+    
+    return min_dist;
+}
+
+void fragment() {
+    vec2 coord = UV * scale;
+    
+    float pattern = cellular(coord);
+    
+    float alpha = COLOR.a;
+    if (pattern > intensity) {
+        alpha = 0.0;
+    }
+    
+    COLOR = vec4(COLOR.rgb, alpha);
+}

game/entities/ships/shield.gdshader.uid

@@ -0,0 +1 @@
+uid://dwh22f35u5qqi

game/passage.gd

@@ -23,9 +23,9 @@ func _on_enemy_timer_timeout() -> void:
 	if enemies.size() < 1:
 		enemy_swamp_controller.create_enemy()
 	
-	var factor := maxi(enemies.size(), 1)
+	var factor := maxi(enemies.size(), 1) * 0.5
 	
-	enemy_timer.start(randi_range(1 * factor, 3 * factor))
+	enemy_timer.start(randf_range(1 * factor, 3 * factor))
 
 
 func _on_player_ship_destroyed() -> void: