From 9267500f686035a70e6cc98dbae83e541b80c696 Mon Sep 17 00:00:00 2001
From: Rezzo <rezzo64@gmail.com>
Date: Sat, 18 Nov 2023 23:44:47 +0000
Subject: [PATCH] add Substitute as placeholder sprite

---
 src/battle-animations.ts |  5 ++++-
 src/battle-dex.ts        | 23 ++++++++++++++++++++++-
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/src/battle-animations.ts b/src/battle-animations.ts
index 70bad46b4..616082d25 100644
--- a/src/battle-animations.ts
+++ b/src/battle-animations.ts
@@ -825,8 +825,11 @@ export class BattleScene implements BattleSceneStub {
 				if (textBuf) textBuf += ' / ';
 				textBuf += pokemon.speciesForme;
 				let url = spriteData.url;
+				var placeholderSprite = spriteData.isFrontSprite // Pet Mods placeholder sprites
+				? "https://play.pokemonshowdown.com/sprites/gen5/substitute.png"
+				: "https://play.pokemonshowdown.com/sprites/gen5-back/substitute.png";
 				// if (this.paused) url.replace('/xyani', '/xy').replace('.gif', '.png');
-				buf += '<img src="' + url + '" width="' + spriteData.w + '" height="' + spriteData.h + '" style="position:absolute;top:' + Math.floor(y - spriteData.h / 2) + 'px;left:' + Math.floor(x - spriteData.w / 2) + 'px" />';
+				buf += '<img src="' + url + '" width="' + spriteData.w + '" height="' + spriteData.h + '" style="position:absolute;top:' + Math.floor(y - spriteData.h / 2) + 'px;left:' + Math.floor(x - spriteData.w / 2) + 'px" onerror="this.src=\'' + placeholderSprite + '\'"/>';
 				buf2 += '<div style="position:absolute;top:' + (y + 45) + 'px;left:' + (x - 40) + 'px;width:80px;font-size:10px;text-align:center;color:#FFF;">';
 				const gender = pokemon.gender;
 				if (gender === 'M' || gender === 'F') {
diff --git a/src/battle-dex.ts b/src/battle-dex.ts
index 1d0124ccd..3594836a0 100644
--- a/src/battle-dex.ts
+++ b/src/battle-dex.ts
@@ -722,7 +722,15 @@ const Dex = new class implements ModdedDex {
 			spriteData.h *= 1.5;
 			spriteData.y += -11;
 		}
-
+		// Placeholder sprites for Pet Mods Fakemons with no sprite data
+		checkSpriteExists(spriteData.url, function(exists: any) {
+			if (!exists) {
+				spriteData = Dex.getSpriteData('substitute', spriteData.isFrontSprite, {
+					gen: options.gen,
+					mod: options.mod,
+				})
+			}
+		}); 
 		return spriteData;
 	}
 
@@ -1147,3 +1155,16 @@ if (typeof require === 'function') {
 	(global as any).Dex = Dex;
 	(global as any).toID = toID;
 }
+
+function checkSpriteExists(url: string, callback: any) {
+	var img = new Image();
+	img.onload = function() {
+	  // The image exists
+	  callback(true);
+	};
+	img.onerror = function() {
+	  // The image does not exist or could not be loaded
+	  callback(false);
+	};
+	img.src = url;
+}