phaser/src/tilemap/TilemapLayer.js

479 lines
11 KiB
JavaScript

// Maybe should extend Sprite?
Phaser.TilemapLayer = function (game, x, y, renderWidth, renderHeight, tileset, tilemap, layer) {
/**
* @property {Phaser.Game} game - Description.
*/
this.game = game;
/**
* @property {Description} canvas - Description.
* @default
*/
this.canvas = Phaser.Canvas.create(renderWidth, renderHeight);
/**
* @property {Description} context - Description.
* @default
*/
this.context = this.canvas.getContext('2d');
/**
* @property {Description} baseTexture - Description.
* @default
*/
this.baseTexture = new PIXI.BaseTexture(this.canvas);
/**
* @property {Description} texture - Description.
* @default
*/
this.texture = new PIXI.Texture(this.baseTexture);
this.textureFrame = new Phaser.Frame(0, 0, 0, renderWidth, renderHeight, 'tilemaplayer', game.rnd.uuid());
Phaser.Sprite.call(this, this.game, x, y, this.texture, this.textureFrame);
this.type = Phaser.TILEMAPLAYER;
this.fixedToCamera = true;
/**
* @property {Description} tileset - Description.
*/
this.tileset = null;
this.tileWidth = 0;
this.tileHeight = 0;
/**
* Read-only variable, do NOT recommend changing after the map is loaded!
* @property {number} widthInPixels
* @default
*/
this.widthInPixels = 0;
/**
* Read-only variable, do NOT recommend changing after the map is loaded!
* @property {number} heightInPixels
* @default
*/
this.heightInPixels = 0;
this.renderWidth = renderWidth;
this.renderHeight = renderHeight;
/**
* @property {number} _ga - Local render loop var to help avoid gc spikes.
* @private
*/
this._ga = 1;
/**
* @property {number} _dx - Local render loop var to help avoid gc spikes.
* @private
*/
this._dx = 0;
/**
* @property {number} _dy - Local render loop var to help avoid gc spikes.
* @private
*/
this._dy = 0;
/**
* @property {number} _dw - Local render loop var to help avoid gc spikes.
* @private
*/
this._dw = 0;
/**
* @property {number} _dh - Local render loop var to help avoid gc spikes.
* @private
*/
this._dh = 0;
/**
* @property {number} _tx - Local render loop var to help avoid gc spikes.
* @private
*/
this._tx = 0;
/**
* @property {number} _ty - Local render loop var to help avoid gc spikes.
* @private
*/
this._ty = 0;
this._results = [];
this._tw = 0;
this._th = 0;
/**
* @property {number} _tl - Local render loop var to help avoid gc spikes.
* @private
*/
this._tl = 0;
/**
* @property {number} _maxX - Local render loop var to help avoid gc spikes.
* @private
*/
this._maxX = 0;
/**
* @property {number} _maxY - Local render loop var to help avoid gc spikes.
* @private
*/
this._maxY = 0;
/**
* @property {number} _startX - Local render loop var to help avoid gc spikes.
* @private
*/
this._startX = 0;
/**
* @property {number} _startY - Local render loop var to help avoid gc spikes.
* @private
*/
this._startY = 0;
this.tilemap = null;
this.layer = null;
this._x = 0;
this._y = 0;
this._prevX = 0;
this._prevY = 0;
this.dirty = true;
if (tileset instanceof Phaser.Tileset || typeof tileset === 'string')
{
this.updateTileset(tileset);
}
if (tilemap instanceof Phaser.Tilemap)
{
this.updateMapData(tilemap, layer);
}
};
Phaser.TilemapLayer.prototype = Phaser.Utils.extend(true, Phaser.Sprite.prototype, PIXI.Sprite.prototype);
Phaser.TilemapLayer.prototype.constructor = Phaser.TilemapLayer;
Phaser.TilemapLayer.prototype.update = function () {
this.scrollX = this.game.camera.x;
this.scrollY = this.game.camera.y;
this.render();
}
Phaser.TilemapLayer.prototype.resizeWorld = function () {
this.game.world.setBounds(0, 0, this.widthInPixels, this.heightInPixels);
}
Phaser.TilemapLayer.prototype.updateTileset = function (tileset) {
if (tileset instanceof Phaser.Tileset)
{
this.tileset = tileset;
}
else if (typeof tileset === 'string')
{
this.tileset = this.game.cache.getTileset('tiles');
}
else
{
return;
}
this.tileWidth = this.tileset.tileWidth;
this.tileHeight = this.tileset.tileHeight;
this.updateMax();
}
Phaser.TilemapLayer.prototype.updateMapData = function (tilemap, layer) {
if (typeof layer === 'undefined')
{
layer = 0;
}
if (tilemap instanceof Phaser.Tilemap)
{
this.tilemap = tilemap;
this.layer = this.tilemap.layers[layer];
this.updateMax();
}
}
/**
*
* @method getTileOverlaps
* @param {GameObject} object - Tiles you want to get that overlaps this.
* @return {array} Array with tiles informations (each contains x, y, and the tile).
*/
Phaser.TilemapLayer.prototype.getTiles = function (x, y, width, height, collides) {
if (this.tilemap === null)
{
return;
}
// Should we only get tiles that have at least one of their collision flags set? (true = yes, false = no just get them all)
if (typeof collides === 'undefined') { collides = false; }
// Cap the values
if (x < 0)
{
x = 0;
}
if (y < 0)
{
y = 0;
}
if (width > this.widthInPixels)
{
width = this.widthInPixels;
}
if (height > this.heightInPixels)
{
height = this.heightInPixels;
}
var tileWidth = this.tileWidth * this.scale.x;
var tileHeight = this.tileHeight * this.scale.y;
// Convert the pixel values into tile coordinates
this._tx = this.game.math.snapToFloor(x, tileWidth) / tileWidth;
this._ty = this.game.math.snapToFloor(y, tileHeight) / tileHeight;
this._tw = (this.game.math.snapToCeil(width, tileWidth) + tileWidth) / tileWidth;
this._th = (this.game.math.snapToCeil(height, tileHeight) + tileHeight) / tileHeight;
this._results.length = 0;
this._results.push( { x: x, y: y, width: width, height: height, tx: this._tx, ty: this._ty, tw: this._tw, th: this._th });
var _index = 0;
var _tile = null;
var sx = 0;
var sy = 0;
for (var wy = this._ty; wy < this._ty + this._th; wy++)
{
for (var wx = this._tx; wx < this._tx + this._tw; wx++)
{
if (this.layer.data[wy] && this.layer.data[wy][wx])
{
// Could combine
_index = this.layer.data[wy][wx] - 1;
_tile = this.tileset.getTile(_index);
sx = _tile.width * this.scale.x;
sy = _tile.height * this.scale.y;
if (collides == false || (collides && _tile.collideNone == false))
{
// this._results.push({ x: wx * _tile.width, right: (wx * _tile.width) + _tile.width, y: wy * _tile.height, bottom: (wy * _tile.height) + _tile.height, width: _tile.width, height: _tile.height, tx: wx, ty: wy, tile: _tile });
this._results.push({ x: wx * sx, right: (wx * sx) + sx, y: wy * sy, bottom: (wy * sy) + sy, width: sx, height: sy, tx: wx, ty: wy, tile: _tile });
}
}
}
}
return this._results;
}
Phaser.TilemapLayer.prototype.updateMax = function () {
this._maxX = this.game.math.ceil(this.canvas.width / this.tileWidth) + 1;
this._maxY = this.game.math.ceil(this.canvas.height / this.tileHeight) + 1;
if (this.layer)
{
if (this._maxX > this.layer.width)
{
this._maxX = this.layer.width;
}
if (this._maxY > this.layer.height)
{
this._maxY = this.layer.height;
}
this.widthInPixels = this.layer.width * this.tileWidth;
this.heightInPixels = this.layer.height * this.tileHeight;
}
this.dirty = true;
}
Phaser.TilemapLayer.prototype.render = function () {
if (!this.dirty || !this.tileset || !this.tilemap || !this.visible)
{
return;
}
this._prevX = this._dx;
this._prevY = this._dy;
this._dx = -(this._x - (this._startX * this.tileWidth));
this._dy = -(this._y - (this._startY * this.tileHeight));
this._tx = this._dx;
this._ty = this._dy;
this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
for (var y = this._startY; y < this._startY + this._maxY; y++)
{
this._column = this.layer.data[y];
for (var x = this._startX; x < this._startX + this._maxX; x++)
{
// only -1 on TILED maps, not CSV
var tile = this.tileset.tiles[this._column[x]-1];
// if (this.tileset.checkTileIndex(tile))
if (tile)
{
this.context.drawImage(
this.tileset.image,
tile.x,
tile.y,
this.tileWidth,
this.tileHeight,
Math.floor(this._tx),
Math.floor(this._ty),
this.tileWidth,
this.tileHeight
);
}
this._tx += this.tileWidth;
}
this._tx = this._dx;
this._ty += this.tileHeight;
}
// Only needed if running in WebGL, otherwise this array will never get cleared down I don't think!
if (this.game.renderType == Phaser.WEBGL)
{
PIXI.texturesToUpdate.push(this.baseTexture);
}
this.dirty = false;
return true;
}
Phaser.TilemapLayer.prototype.deltaAbsX = function () {
return (this.deltaX() > 0 ? this.deltaX() : -this.deltaX());
}
Phaser.TilemapLayer.prototype.deltaAbsY = function () {
return (this.deltaY() > 0 ? this.deltaY() : -this.deltaY());
}
Phaser.TilemapLayer.prototype.deltaX = function () {
return this._dx - this._prevX;
}
Phaser.TilemapLayer.prototype.deltaY = function () {
return this._dy - this._prevY;
}
Object.defineProperty(Phaser.TilemapLayer.prototype, "scrollX", {
get: function () {
return this._x;
},
set: function (value) {
if (value !== this._x && value >= 0 && this.layer)
{
this._x = value;
if (this._x > (this.widthInPixels - this.renderWidth))
{
this._x = this.widthInPixels - this.renderWidth;
}
this._startX = this.game.math.floor(this._x / this.tileWidth);
if (this._startX < 0)
{
this._startX = 0;
}
if (this._startX + this._maxX > this.layer.width)
{
this._startX = this.layer.width - this._maxX;
}
this.dirty = true;
}
}
});
Object.defineProperty(Phaser.TilemapLayer.prototype, "scrollY", {
get: function () {
return this._y;
},
set: function (value) {
if (value !== this._y && value >= 0 && this.layer)
{
this._y = value;
if (this._y > (this.heightInPixels - this.renderHeight))
{
this._y = this.heightInPixels - this.renderHeight;
}
this._startY = this.game.math.floor(this._y / this.tileHeight);
if (this._startY < 0)
{
this._startY = 0;
}
if (this._startY + this._maxY > this.layer.height)
{
this._startY = this.layer.height - this._maxY;
}
this.dirty = true;
}
}
});