From bee0a4264a3e0755a74d3ef1180d5a6962e82033 Mon Sep 17 00:00:00 2001
From: Renge <renge@marmot.website>
Date: Wed, 20 Apr 2022 18:31:53 -0400
Subject: [PATCH] feat: implemented healthbar for enemies

---
 src/shattered_sword/AI/EnemyAI.ts       | 17 +++++++++++++++++
 src/shattered_sword/Scenes/GameLevel.ts |  4 ++++
 2 files changed, 21 insertions(+)

diff --git a/src/shattered_sword/AI/EnemyAI.ts b/src/shattered_sword/AI/EnemyAI.ts
index edef365..bfb47a8 100644
--- a/src/shattered_sword/AI/EnemyAI.ts
+++ b/src/shattered_sword/AI/EnemyAI.ts
@@ -25,6 +25,8 @@ import { Player_Events } from "../sword_enums";
 import InputWrapper from "../Tools/InputWrapper";
 import Timer from "../../Wolfie2D/Timing/Timer";
 import PlayerController from "../Player/PlayerController";
+import Rect from "../../Wolfie2D/Nodes/Graphics/Rect";
+import Color from "../../Wolfie2D/Utils/Color";
 export default class EnemyAI extends StateMachineGoapAI implements BattlerAI {
     /** The owner of this AI */
     owner: AnimatedSprite;
@@ -76,6 +78,8 @@ export default class EnemyAI extends StateMachineGoapAI implements BattlerAI {
     bleedTimer : Timer;
     bleedCounter :number = 0;
 
+    healthBar: Rect;
+
 
     initializeAI(owner: AnimatedSprite, options: Record<string, any>): void { 
         this.owner = owner;
@@ -146,6 +150,7 @@ export default class EnemyAI extends StateMachineGoapAI implements BattlerAI {
             this.owner.setAIActive(false, {});
             this.owner.isCollidable = false;
             this.owner.visible = false;
+            this.healthBar.destroy();
 
             this.emitter.fireEvent(Player_Events.ENEMY_KILLED, {owner: this.owner.id, ai:this});
 
@@ -237,6 +242,18 @@ export default class EnemyAI extends StateMachineGoapAI implements BattlerAI {
             this.bleedTimer.start();
             this.damage(5 + (<PlayerController>this.player._ai).extraDotDmg + (<PlayerController>this.player._ai).CURRENT_ATK * .08);
         }
+
+        this.healthBar.position = this.owner.collisionShape.center.clone().add(new Vec2(0, -((<AABB>this.owner.collisionShape).hh+5)));
+        this.healthBar.fillWidth = this.CURRENT_HP/this.maxHealth * this.owner.collisionShape.hw * 3;
+        if (this.CURRENT_HP/this.maxHealth >= 2/3) {
+            this.healthBar.color = Color.GREEN;
+        }
+        else if (this.CURRENT_HP/this.maxHealth >= 1/3) {
+            this.healthBar.color = Color.YELLOW;
+        }
+        else {
+            this.healthBar.color = Color.RED;
+        }
     }
 }
 
diff --git a/src/shattered_sword/Scenes/GameLevel.ts b/src/shattered_sword/Scenes/GameLevel.ts
index 4b2c6a0..dbf15fc 100644
--- a/src/shattered_sword/Scenes/GameLevel.ts
+++ b/src/shattered_sword/Scenes/GameLevel.ts
@@ -739,6 +739,10 @@ export default class GameLevel extends Scene {
         }
 
         enemy.addAI(EnemyAI, aiOptions); //TODO - add individual enemy AI
+        (<EnemyAI>enemy._ai).healthBar = <Rect>this.add.graphic(GraphicType.RECT, "primary", {position: enemy.collisionShape.center.clone().add(new Vec2(0, -((<AABB>enemy.collisionShape).hh+5))), size: new Vec2((<AABB>enemy.collisionShape).hw*3, 5)});
+        (<EnemyAI>enemy._ai).healthBar.borderColor = Color.BLACK;
+        (<EnemyAI>enemy._ai).healthBar.borderWidth = 1;
+        (<EnemyAI>enemy._ai).healthBar.color = Color.GREEN;
         enemy.setGroup("Enemy");
         enemy.setTrigger("player", Player_Events.PLAYER_COLLIDE, null);