Add damage indicators

Items/Logic/Hitscan/Hitscan.cs

@@ -79,7 +79,7 @@ public static void Fire(float VerticalAngle, float HorizontalAngle, float Range,
 					if(HitPlr.Health - Damage <= 0)
 						Game.PossessedPlayer.SfxManager.FpKillsound();
 
-					HitPlr.RpcId(HitPlr.Id, nameof(Player.ApplyDamage), Damage);
+					HitPlr.RpcId(HitPlr.Id, nameof(Player.ApplyDamage), Damage, Game.PossessedPlayer.Id);
 				}
 			}
 			else

Player/Player.cs

@@ -223,9 +223,15 @@ public void Respawn()
 
 
 	[Remote]
-	public void ApplyDamage(float Damage)
+	public void ApplyDamage(float Damage, int AttackerId)
 	{
 		Health = Clamp(Health - Damage, 0, MaxHealth);
+		// Calculate DamageIndicator angles
+		Player Attacker = Net.Players[AttackerId];
+		// Convert the attacker's coordinates to 2D to make this easier
+		// aka remove height
+		Vector2 AttackerPoint = new Vector2(Attacker.Translation.x, Attacker.Translation.z);
+		HUDInstance.ShowDamageIndicator(AttackerPoint); // Convert to degrees
 	}
 
 

SkyOfSteel.csproj

@@ -84,6 +84,7 @@
     <Compile Include="Player\PlayerSfxManager.cs" />
     <Compile Include="Scripting\Gamemode.cs" />
     <Compile Include="Scripting\GmConfig.cs" />
+    <Compile Include="UI\DamageIndicator.cs" />
     <Compile Include="UI\Menu\HostMenu\SlotButton.cs" />
     <Compile Include="UI\Menu\LicensesMenu\LicensesMenu.cs" />
     <Compile Include="UI\Menu\Pieces\ButtonPiece.cs" />

UI/DamageIndicator.cs

@@ -0,0 +1,44 @@
+using Godot;
+using System;
+
+public class DamageIndicator : TextureRect
+{
+    // Angle the bullet came from
+    Vector2 ShotFirePosition;
+    float OriginalAngle;
+    public override void _Ready()
+    {
+        // Start transparency Tween in _Ready so we know the Tween has been created
+        Tween TransparencyTween = GetNode<Tween>("Tween");
+        // Tween the "modulate" property
+        TransparencyTween.InterpolateProperty(this,"modulate", new Color(255,255,255,1), new Color(255,255,255,0), 3, Tween.TransitionType.Linear, Tween.EaseType.InOut);
+        TransparencyTween.Start();
+    }
+
+
+    public void SetTargetAngle(Vector2 ShotFirePosition)
+    {
+        // The rotation we're looking at is the Y rotation
+        this.ShotFirePosition = ShotFirePosition;
+        // Original angle
+        OriginalAngle = Game.PossessedPlayer.Rotation.y;
+    }
+
+
+    // Called every frame. 'delta' is the elapsed time since the previous frame.
+    public override void _Process(float delta)
+    {
+        // Calculate rotation
+        // Calculate our position on a 2D plane
+        Vector2 OurPoint = new Vector2(Game.PossessedPlayer.Translation.x, Game.PossessedPlayer.Translation.z);
+        // Get our rotation by getting the angle from where we we're shot from, and adding where we we're looking before
+        RectRotation = Mathf.Rad2Deg(OurPoint.AngleToPoint(ShotFirePosition)+OriginalAngle);
+    }
+
+
+    public void TweenComplete()
+    {
+        // We're now totally transparent, so time to
+        QueueFree();
+    }
+}

UI/DamageIndicator.tscn

@@ -0,0 +1,16 @@
+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://UI/Textures/DamageIndicator.png" type="Texture" id=1]
+[ext_resource path="res://UI/DamageIndicator.cs" type="Script" id=2]
+
+[node name="DamageIndicator" type="TextureRect"]
+margin_left = 312.0
+margin_top = 100.0
+margin_right = 712.0
+margin_bottom = 500.0
+rect_pivot_offset = Vector2( 200, 200 )
+texture = ExtResource( 1 )
+script = ExtResource( 2 )
+
+[node name="Tween" type="Tween" parent="."]
+[connection signal="tween_all_completed" from="Tween" to="." method="TweenComplete"]

UI/HUD.cs

@@ -8,6 +8,7 @@ public class HUD : Node
 	private Texture Triangle;
 	private PackedScene ItemCountLabelScene;
 	private PackedScene NickLabelScene;
+	private PackedScene DamageIndicatorScene;
 
 	private Dictionary<int, Label> NickLabels = new Dictionary<int, Label>();
 
@@ -17,6 +18,7 @@ public class HUD : Node
 	private Label ChunkInfoLabel;
 	private Label PlayerPositionLabel;
 	private Label FPSLabel;
+	private CenterContainer DamageIndicatorContainer;
 	public CanvasLayer NickLabelLayer;
 
 	public bool Visible = true;
@@ -29,6 +31,7 @@ public class HUD : Node
 		Triangle = GD.Load("res://UI/Textures/Triangle.png") as Texture;
 		ItemCountLabelScene = GD.Load<PackedScene>("res://UI/ItemCountLabel.tscn");
 		NickLabelScene = GD.Load<PackedScene>("res://UI/NickLabel.tscn");
+		DamageIndicatorScene = GD.Load<PackedScene>("res://UI/DamageIndicator.tscn");
 	}
 
 
@@ -40,6 +43,7 @@ public override void _Ready()
 		ChunkInfoLabel = GetNode<Label>("CLayer/ChunkInfo");
 		PlayerPositionLabel = GetNode<Label>("CLayer/PlayerPosition");
 		FPSLabel = GetNode<Label>("CLayer/FPSLabel");
+		DamageIndicatorContainer = GetNode<CenterContainer>("CLayer/DamageIndicatorCenter");
 		NickLabelLayer = GetNode<CanvasLayer>("NickLabelLayer");
 
 		GetNode<Label>("CLayer/VersionLabel").Text = $"Version: {Game.Version}";
@@ -157,6 +161,15 @@ public void RemoveNickLabel(int Id)
 	}
 
 
+	public void ShowDamageIndicator(Vector2 ShotFirePosition) {
+		// Angle must be in degrees for the DamageIndicator
+		DamageIndicator Indicator = DamageIndicatorScene.Instance() as DamageIndicator;
+		Indicator.SetTargetAngle(ShotFirePosition);
+		// Add it to its container
+		DamageIndicatorContainer.AddChild(Indicator);
+	}
+
+
 	public override void _Process(float Delta)
 	{
 		Crosshair.Visible = !Menu.IsOpen;

UI/HUD.tscn

@@ -70,6 +70,10 @@ custom_styles/bg = SubResource( 2 )
 value = 50.0
 percent_visible = false
 
+[node name="DamageIndicatorCenter" type="CenterContainer" parent="CLayer"]
+anchor_right = 1.0
+anchor_bottom = 1.0
+
 [node name="HealthVBox" type="VBoxContainer" parent="CLayer"]
 anchor_right = 1.0
 anchor_bottom = 1.0

UI/Textures/DamageIndicator.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/DamageIndicator.png-cbb494ba511e14f2e40bf5115c6800de.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://UI/Textures/DamageIndicator.png"
+dest_files=[ "res://.import/DamageIndicator.png-cbb494ba511e14f2e40bf5115c6800de.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0