From 7f0852bfbe4a5a31a1cda6779f9f8a713cdd2f45 Mon Sep 17 00:00:00 2001
From: Starphee <33707294+Starphee@users.noreply.github.com>
Date: Sat, 4 Jan 2025 21:45:54 -0800
Subject: [PATCH] Add basic ship recoil

- Implemented rudimentary and simple recoil based on knockback and speed.
---
 src/game/classes/Ship.mjs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/game/classes/Ship.mjs b/src/game/classes/Ship.mjs
index 37476c5..386a87e 100644
--- a/src/game/classes/Ship.mjs
+++ b/src/game/classes/Ship.mjs
@@ -154,15 +154,30 @@ export class Ship extends DynamicObject {
     switch (fireCount) {
       case 1:
         this.addProjectile(this.pos.d, weaponId, callbacks);
+        this.applyRecoil(weaponId); // NEW! Apply recoil on fire
         break;
       case 3:
         this.addProjectile(this.pos.d - 10, weaponId, callbacks);
         this.addProjectile(this.pos.d, weaponId, callbacks);
         this.addProjectile(this.pos.d + 10, weaponId, callbacks);
+        this.applyRecoil(weaponId); // NEW! Apply recoil on fire
         break;
     }
   }
 
+  applyRecoil(weaponId) {
+    if (this.exploding) return;
+
+    const { knockBackForce, speed } = this.config.weapons[weaponId].data;
+    const recoilForce = (knockBackForce * speed) / (1000 * 1000);
+    const recoilDirection = this.pos.d + 180; // Opposite to firing direction
+
+    this.knockBack = {
+      angle: recoilDirection,
+      amount: recoilForce * 0.5, // 0.5 dampening factor
+    };
+  }
+
   // FUNCTION projectile hit/collision callback
   hit({ type, weapon, source }) {
     const target = this;