From ad02c2e06531d48e0553da1cbee817599c81326d Mon Sep 17 00:00:00 2001
From: LJ5O <75009579+LJ5O@users.noreply.github.com>
Date: Tue, 9 Jan 2024 19:44:42 +0100
Subject: [PATCH] Added checkPlayerCollisions

This function can be used to check for a list of objects that the player may enter, it will execute onEnterHitbox and onLeaveHitbox methods when the player collides with a given object
---
 src/main.js                   | 17 +++-----------
 src/utils/addAssetsOnScene.js |  8 ++++++-
 src/utils/notification.js     |  8 +++++++
 src/utils/playerCollisions.js | 42 +++++++++++++++++++++++++++++++++++
 4 files changed, 60 insertions(+), 15 deletions(-)
 create mode 100644 src/utils/notification.js
 create mode 100644 src/utils/playerCollisions.js

diff --git a/src/main.js b/src/main.js
index 469b540..3f9d95a 100644
--- a/src/main.js
+++ b/src/main.js
@@ -3,24 +3,12 @@ import { getCamera } from './cameras/PerspectiveCamera.js';
 import {addAssetsOnScene} from './utils/addAssetsOnScene.js';
 import * as PlayerMovement from './utils/playerMovement.js';
 import * as Animations from './utils/animateMesh.js';
-
-/*TODO*/
-import $ from 'jquery'
-
-function showNotification(HTMLText, color){
-  $("#notification_bar p").html(HTMLText);
-  $("#notification_bar").css( 'opacity', 0.9 ).animate({
-    width:320
-  }, 500);
-}
-
-showNotification("oui")
-/*TODO*/
+import * as PlayerCollisions from './utils/playerCollisions.js';
 
 let Clock = new THREE.Clock();
 THREE.Cache.enabled = true;//So we can request several time the same file without worrying : https://threejs.org/docs/#api/en/loaders/FileLoader
 
-const APP_DEBUG = true;//Turn true to show player position in browser console
+const APP_DEBUG = false;//Turn true to show player position in browser console
 
 /* --------------------- */
 /* |  SCENE CREATION   | */
@@ -60,6 +48,7 @@ function animate() {
   if(APP_DEBUG)console.log("Player position X : "+assets.player.scene.position.x+ " Y : "+assets.player.scene.position.y);
 
   PlayerMovement.updatePlayerPositionAnimation(assets.player, camera, scene);//Updating player position and rotation
+  PlayerCollisions.checkPlayerCollisions(assets.player, assets.linkPlates);//Checking collisions with player
   Animations.updateAnimations(Clock.getDelta());//Playing animations
 
 	renderer.render( scene, camera );//Calculating and redering new frame
diff --git a/src/utils/addAssetsOnScene.js b/src/utils/addAssetsOnScene.js
index c480a68..fae31af 100644
--- a/src/utils/addAssetsOnScene.js
+++ b/src/utils/addAssetsOnScene.js
@@ -378,12 +378,17 @@ export async function addAssetsOnScene(scene){
     ADDING LINK PLATES
     -------------------- */
 
+    let linkPlates = [];
+
     const linkPlate = await loadModel('src/objects/models/linkPlate.gltf');
     linkPlate.scene.scale.set(0.4,0.05,0.4);
     linkPlate.scene.rotateOnWorldAxis(new THREE.Vector3(1,0,0), MathUtils.degToRad(90));//Must be standing up
     alignGround(ground, linkPlate.scene);
     linkPlate.scene.position.y = 2;
+    linkPlate.scene.position.z = 1;
     scene.add( linkPlate.scene );
+    linkPlate.onEnterHitbox = ()=>{console.log('"Hello World !"')};
+    linkPlates.push(linkPlate);
 
     /* --------------------
     ADDING GRASS
@@ -463,6 +468,7 @@ export async function addAssetsOnScene(scene){
         pathTiles: pathTiles,
         nameplateModel: nameplateModel,
         worldStatue: worldStatue,
-        printerStatue: printerStatue
+        printerStatue: printerStatue,
+        linkPlates:linkPlates
     };
 }
\ No newline at end of file
diff --git a/src/utils/notification.js b/src/utils/notification.js
new file mode 100644
index 0000000..ab568ac
--- /dev/null
+++ b/src/utils/notification.js
@@ -0,0 +1,8 @@
+import $ from 'jquery';
+
+export function showNotification(HTMLText){
+  $("#notification_bar p").html(HTMLText);
+  $("#notification_bar").css( 'opacity', 0.9 ).animate({
+    width:320
+  }, 500);
+}
\ No newline at end of file
diff --git a/src/utils/playerCollisions.js b/src/utils/playerCollisions.js
new file mode 100644
index 0000000..20ed559
--- /dev/null
+++ b/src/utils/playerCollisions.js
@@ -0,0 +1,42 @@
+import * as THREE from 'three';
+
+export function checkPlayerCollisions(player, objects) {
+  if (!player || !player.scene) {
+    throw new Error('The player must have a "scene" property.');
+  }
+
+  const playerBoundingBox = new THREE.Box3().setFromObject(player.scene);
+
+  for (const object of objects) {
+    if (!object || !object.scene) {
+      console.warn('An object in the list does not have a "scene" property. It will be ignored.');
+      continue;
+    }
+
+    const objectBoundingBox = new THREE.Box3().setFromObject(object.scene);
+
+    //Check if the object is currently inside the hitbox
+    const isInsideHitbox = playerBoundingBox.intersectsBox(objectBoundingBox);
+
+    //If the object was outside but is now inside, call onEnterHitbox
+    if (isInsideHitbox && !object.isInsideHitbox) {
+      if (object.onEnterHitbox && typeof object.onEnterHitbox === 'function') {
+        object.onEnterHitbox();
+      } else {
+        console.warn('The onEnterHitbox method is not defined on an object checked for entering the player\'s hitbox.');
+      }
+    }
+
+    //If the object was inside but is now outside, call onLeaveHitbox
+    else if (!isInsideHitbox && object.isInsideHitbox) {
+      if (object.onLeaveHitbox && typeof object.onLeaveHitbox === 'function') {
+        object.onLeaveHitbox();
+      } else {
+        console.warn('The onLeaveHitbox method is not defined on an object checked for leaving the player\'s hitbox.');
+      }
+    }
+
+    //Update the state for the next check
+    object.isInsideHitbox = isInsideHitbox;
+  }
+}
\ No newline at end of file