isleward/src/client/js/rendering/tileOpacity.js

define([

], function (

) {
	return {
		sheetHeight: 20,

		tiles: {
			default: 0.4,
			max: 0.55,
			5: 0.7,
			6: 0.9,
			23: 0.9,
			24: 0.9,
			25: 0.9,
			50: 1,
			51: 1,
			52: 1,
			53: 0.7,
			54: 0.5,
			57: 1,
			58: 1,
			59: 1,
			60: 0.9,
			61: 0.9,
			62: 0.75,
			76: 0.9,
			80: 1,
			81: 1,
			82: 1,
			83: 1,
			87: 1,
			90: 1,
			95: 1,
			102: 0.9,
			152: 0.9,
			153: 1,
			163: 0.9,
			//snow
			176: 0.55,
			184: 0.55,
			185: 0.55
		},
		objects: {
			default: 0.9,
			50: 1
		},
		walls: {
			default: 0.85,
			max: 1,
			84: 1,
			103: 0.9,
			107: 0.9,
			116: 1,
			120: 0.9,
			132: 0.9,
			133: 0.9,
			134: 0.85,
			139: 1,
			148: 1,
			150: 0.85,
			156: 1,
			157: 1,
			158: 1,
			159: 1,
			160: 0.9,
			161: 1,
			162: 1,
			163: 1,
			164: 0.8,
			165: 1,
			166: 0.95,
			167: 1,
			168: 1,
			169: 1
		},

		tilesNoFlip: [
			171, 179 //Stairs
		],
		wallsNoFlip: [
			156, 158, 162, 163, 167, 168, //Ledges
			189, //Wall Sign
			195, 196, 197, 198, 199, 200, 201, 202, 203, //Stone Ledges
			204, 205, 206, 207, 214, 215, 220, 221, 222, 223 //Ship Edges
		],
		objectsNoFlip: [
			96, 101, //Clotheslines
			103, 110, 118, 126, //Table Sides
			120, 122, 140, //Wall-mounted plants
			140, 143, //Ship oars
			141, 142 //Ship Cannons
		],

		getSheetNum: function (tile) {
			if (tile < 192)
				return 0;
			else if (tile < 448)
				return 1;
			return 2;
		},

		map: function (tile) {
			let sheetNum;

			if (tile < 192)
				sheetNum = 0;
			else if (tile < 448) {
				tile -= 192;
				sheetNum = 1;
			} else {
				tile -= 448;
				sheetNum = 2;
			}

			let tilesheet = [this.tiles, this.walls, this.objects][sheetNum];

			let alpha = (tilesheet[tile] || tilesheet.default);
			if (tilesheet.max != null) {
				alpha = alpha + (Math.random() * (alpha * 0.2));
				alpha = Math.min(1, alpha);
			}

			return alpha;
		},

		canFlip: function (tile) {
			let sheetNum;

			if (tile < 192)
				sheetNum = 0;
			else if (tile < 448) {
				tile -= 192;
				sheetNum = 1;
			} else {
				tile -= 448;
				sheetNum = 2;
			}

			let tilesheet = [this.tilesNoFlip, this.wallsNoFlip, this.objectsNoFlip][sheetNum];
			return (tilesheet.indexOf(tile) == -1);
		}
	};
});