From b3afa47b9b89af1ca6e8441c629c0749bbec4fb1 Mon Sep 17 00:00:00 2001
From: mclemente <matheus.xb@gmail.com>
Date: Mon, 17 Jan 2022 20:07:07 -0300
Subject: [PATCH] Sane Mirror Image

Related to https://github.com/mclemente/about-face/issues/24
---
 scripts/flipAngles.js | 154 ------------------------------------------
 scripts/logic.js      |  37 ++++------
 2 files changed, 15 insertions(+), 176 deletions(-)
 delete mode 100644 scripts/flipAngles.js

diff --git a/scripts/flipAngles.js b/scripts/flipAngles.js
deleted file mode 100644
index f549993..0000000
--- a/scripts/flipAngles.js
+++ /dev/null
@@ -1,154 +0,0 @@
-export default [
-	{}, //gridless
-	{
-		//square
-		"flip-v": {
-			down: {
-				mirror: "mirrorY",
-				0: true,
-				180: false,
-			},
-			up: {
-				mirror: "mirrorY",
-				0: false,
-				180: true,
-			},
-		},
-		"flip-h": {
-			right: {
-				mirror: "mirrorX",
-				90: false,
-				270: true,
-			},
-			left: {
-				mirror: "mirrorX",
-				90: true,
-				270: false,
-			},
-		},
-	},
-	{
-		//hex odd rows
-		"flip-v": {
-			down: {
-				mirror: "mirrorY",
-				45: false,
-				135: true,
-				225: true,
-				315: false,
-			},
-			up: {
-				mirror: "mirrorY",
-				45: true,
-				135: false,
-				225: false,
-				315: true,
-			},
-		},
-		"flip-h": {
-			right: {
-				mirror: "mirrorX",
-				90: true,
-				270: false,
-			},
-			left: {
-				mirror: "mirrorX",
-				90: false,
-				270: true,
-			},
-		},
-	},
-	{
-		//hex even rows
-		"flip-v": {
-			down: {
-				mirror: "mirrorY",
-				45: false,
-				135: true,
-				225: true,
-				315: false,
-			},
-			up: {
-				mirror: "mirrorY",
-				45: true,
-				135: false,
-				225: false,
-				315: true,
-			},
-		},
-		"flip-h": {
-			right: {
-				mirror: "mirrorX",
-				90: true,
-				270: false,
-			},
-			left: {
-				mirror: "mirrorX",
-				90: false,
-				270: true,
-			},
-		},
-	},
-	{
-		//hex odd cols
-		"flip-v": {
-			down: {
-				mirror: "mirrorY",
-				0: false,
-				180: true,
-			},
-			up: {
-				mirror: "mirrorY",
-				0: true,
-				180: false,
-			},
-		},
-		"flip-h": {
-			right: {
-				mirror: "mirrorX",
-				60: true,
-				120: true,
-				240: false,
-				300: false,
-			},
-			left: {
-				mirror: "mirrorX",
-				60: false,
-				120: false,
-				240: true,
-				300: true,
-			},
-		},
-	},
-	{
-		// hex even cols
-		"flip-v": {
-			down: {
-				mirror: "mirrorY",
-				0: false,
-				180: true,
-			},
-			up: {
-				mirror: "mirrorY",
-				0: true,
-				180: false,
-			},
-		},
-		"flip-h": {
-			right: {
-				mirror: "mirrorX",
-				60: true,
-				120: true,
-				240: false,
-				300: false,
-			},
-			left: {
-				mirror: "mirrorX",
-				60: false,
-				120: false,
-				240: true,
-				300: true,
-			},
-		},
-	},
-];
diff --git a/scripts/logic.js b/scripts/logic.js
index 756c220..9b04a81 100644
--- a/scripts/logic.js
+++ b/scripts/logic.js
@@ -1,5 +1,4 @@
 import { IndicatorMode, MODULE_ID } from "./settings.js";
-import flipAngles from "./flipAngles.js";
 
 let indicatorColor, indicatorDistance;
 const IndicatorDirections = {
@@ -141,7 +140,7 @@ export function onPreUpdateToken(token, updates) {
 		if (!updates.flags) updates.flags = {};
 		updates.flags[MODULE_ID] = { direction: dir };
 		if (flipOrRotate != "rotate") {
-			const [mirrorKey, mirrorVal] = getMirror(token, flipOrRotate, dir + 90);
+			const [mirrorKey, mirrorVal] = getMirror(token, { x: diffX, y: diffY });
 			if (mirrorKey) updates[mirrorKey] = mirrorVal;
 			return;
 		}
@@ -175,28 +174,22 @@ function getFlipOrRotation(tokenDocument) {
 	return tokenFlipOrRotate != "global" ? tokenFlipOrRotate : game.settings.get(MODULE_ID, "flip-or-rotate");
 }
 
-function getMirror(tokenDocument, flipOrRotate, dir) {
-	if (dir == null) dir = tokenDocument.getFlag(MODULE_ID, "direction") || 0;
+function getMirror(tokenDocument, position) {
 	const facingDirection = tokenDocument.getFlag(MODULE_ID, "facingDirection") || game.settings.get(MODULE_ID, "facing-direction");
-	try {
-		var angles = flipAngles[canvas.grid.type][flipOrRotate][facingDirection];
-	} catch (error) {
-		console.error(`About Face: failed to mirror token "${tokenDocument.name}" (ID: ${tokenDocument.id}).
-			tokenDocument.flags.about-face.facingDirection: ${tokenDocument.getFlag(MODULE_ID, "facingDirection")}
-			canvas.grid.type: ${canvas.grid.type}
-			flipOrRotate: ${flipOrRotate}
-			facingDirection: ${facingDirection}
-			angles: ${JSON.stringify(angles)}
-			${error}`);
-	} finally {
-		if (angles && angles[dir] != null) {
-			const update = {
-				[angles.mirror]: angles[dir],
-			};
-			return [angles.mirror, angles[dir]];
-		}
-		return [];
+	if (facingDirection === "right") {
+		if (position.x < 0) return ["mirrorX", true];
+		if (position.x > 0) return ["mirrorX", false];
+	} else if (facingDirection === "left") {
+		if (position.x < 0) return ["mirrorX", false];
+		if (position.x > 0) return ["mirrorX", true];
+	} else if (facingDirection === "up") {
+		if (position.y < 0) return ["mirrorY", false];
+		if (position.y > 0) return ["mirrorY", true];
+	} else if (facingDirection === "down") {
+		if (position.y < 0) return ["mirrorY", true];
+		if (position.y > 0) return ["mirrorY", false];
 	}
+	return [];
 }
 
 export function updateArrowColor(color) {