forked from sent/waves
112 lines
3.7 KiB
JavaScript
112 lines
3.7 KiB
JavaScript
var MapScreenr;
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(function (MapScreenr_1) {
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"use strict";
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/**
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* A simple container for Map attributes given by switching to an Area within
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* that map. A bounding box of the current viewport is kept, along with any
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* other information desired.
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*/
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var MapScreenr = (function () {
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/**
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* Resets the MapScreenr. All members of the settings argument are copied
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* to the MapScreenr itself, though only width and height are required.
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*
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* @param {IMapScreenrSettings} settings
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*/
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function MapScreenr(settings) {
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if (typeof settings === "undefined") {
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throw new Error("No settings object given to MapScreenr.");
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}
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if (typeof settings.width === "undefined") {
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throw new Error("No width given to MapScreenr.");
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}
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if (typeof settings.height === "undefined") {
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throw new Error("No height given to MapScreenr.");
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}
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var name;
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for (name in settings) {
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if (settings.hasOwnProperty(name)) {
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this[name] = settings[name];
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}
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}
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this.variables = settings.variables || {};
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this.variableArgs = settings.variableArgs || [];
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}
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/* State changes
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*/
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/**
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* Completely clears the MapScreenr for use in a new Area. Positioning is
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* reset to (0,0) and user-configured variables are recalculated.
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*/
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MapScreenr.prototype.clearScreen = function () {
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this.left = 0;
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this.top = 0;
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this.right = this.width;
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this.bottom = this.height;
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this.setMiddleX();
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this.setMiddleY();
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this.setVariables();
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};
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/**
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* Computes middleX as the midpoint between left and right.
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*/
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MapScreenr.prototype.setMiddleX = function () {
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this.middleX = (this.left + this.right) / 2;
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};
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/**
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* Computes middleY as the midpoint between top and bottom.
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*/
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MapScreenr.prototype.setMiddleY = function () {
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this.middleY = (this.top + this.bottom) / 2;
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};
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/**
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* Runs all variable Functions with variableArgs to recalculate their
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* values.
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*/
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MapScreenr.prototype.setVariables = function () {
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var i;
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for (i in this.variables) {
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if (this.variables.hasOwnProperty(i)) {
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this[i] = this.variables[i].apply(this, this.variableArgs);
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}
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}
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};
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/* Element shifting
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*/
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/**
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* Shifts the MapScreenr horizontally and vertically via shiftX and shiftY.
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*
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* @param {Number} dx
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* @param {Number} dy
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*/
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MapScreenr.prototype.shift = function (dx, dy) {
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if (dx) {
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this.shiftX(dx);
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}
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if (dy) {
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this.shiftY(dy);
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}
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};
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/**
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* Shifts the MapScreenr horizontally by changing left and right by the dx.
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*
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* @param {Number} dx
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*/
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MapScreenr.prototype.shiftX = function (dx) {
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this.left += dx;
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this.right += dx;
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};
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/**
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* Shifts the MapScreenr vertically by changing top and bottom by the dy.
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*
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* @param {Number} dy
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*/
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MapScreenr.prototype.shiftY = function (dy) {
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this.top += dy;
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this.bottom += dy;
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};
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return MapScreenr;
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})();
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MapScreenr_1.MapScreenr = MapScreenr;
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})(MapScreenr || (MapScreenr = {}));
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