(function() {
Tilemap.prototype._paintTiles = function(startX, startY, x, y) {
var tableEdgeVirtualId = 10000;
//现在x = 开始x + x
var mx = startX + x;
//现在y = 开始y + y
var my = startY + y;
//dx = 现在x * 图块宽(48) 除 层宽(912)的余数 -- 以层宽为基础的 现在图块坐标 x
var dx = (mx * this._tileWidth).mod(this._layerWidth);
//dy = 现在y * 图块高(48) 除 层高(720)的余数 -- 以层宽为基础的 现在图块坐标 y
var dy = (my * this._tileHeight).mod(this._layerHeight);
//层x
var lx = dx / this._tileWidth;
//层y
var ly = dy / this._tileHeight;
var tileId0 = this._readMapData(mx, my, 0);
var tileId1 = this._readMapData(mx, my, 1);
var tileId2 = this._readMapData(mx, my, 2);
var tileId3 = this._readMapData(mx, my, 3);
var shadowBits = this._readMapData(mx, my, 4);
var upperTileId1 = this._readMapData(mx, my - 1, 1);
var lowerTiles = [];
var upperTiles = [];
if (this._isHigherTile(tileId0)) {
upperTiles.push(tileId0);
lowerTiles.push(tileId0);
} else {
lowerTiles.push(tileId0);
}
if (this._isHigherTile(tileId1)) {
upperTiles.push(tileId1);
lowerTiles.push(tileId1);
} else {
lowerTiles.push(tileId1);
}
lowerTiles.push(-shadowBits);
if (this._isTableTile(upperTileId1) && !this._isTableTile(tileId1)) {
if (!Tilemap.isShadowingTile(tileId0)) {
lowerTiles.push(tableEdgeVirtualId + upperTileId1);
}
}
if (this._isOverpassPosition(mx, my)) {
upperTiles.push(tileId2);
upperTiles.push(tileId3);
lowerTiles.push(tileId3);
lowerTiles.push(tileId2);
} else {
if (this._isHigherTile(tileId2)) {
upperTiles.push(tileId2);
lowerTiles.push(tileId2);
} else {
lowerTiles.push(tileId2);
}
if (this._isHigherTile(tileId3)) {
upperTiles.push(tileId3);
lowerTiles.push(tileId3);
} else {
lowerTiles.push(tileId3);
}
}
var lastLowerTiles = this._readLastTiles(0, lx, ly);
if (!lowerTiles.equals(lastLowerTiles) ||
(Tilemap.isTileA1(tileId0) && this._frameUpdated)) {
this._lowerBitmap.clearRect(dx, dy, this._tileWidth, this._tileHeight);
for (var i = 0; i < lowerTiles.length; i++) {
var lowerTileId = lowerTiles[i];
if (lowerTileId < 0) {
this._drawShadow(this._lowerBitmap, shadowBits, dx, dy);
} else if (lowerTileId >= tableEdgeVirtualId) {
this._drawTableEdge(this._lowerBitmap, upperTileId1, dx, dy);
} else {
this._drawTile(this._lowerBitmap, lowerTileId, dx, dy);
}
}
this._writeLastTiles(0, lx, ly, lowerTiles);
}
var lastUpperTiles = this._readLastTiles(1, lx, ly);
if (!upperTiles.equals(lastUpperTiles)) {
this._upperBitmap.clearRect(dx, dy, this._tileWidth, this._tileHeight);
for (var j = 0; j < upperTiles.length; j++) {
this._drawTile(this._upperBitmap, upperTiles[j], dx, dy);
}
this._writeLastTiles(1, lx, ly, upperTiles);
}
};
Tilemap.prototype._createLayers = function() {
//宽 856
var width = this._width;
//高 664
var height = this._height;
//页边 20
var margin = this._margin;
//图块列 19 大于等于 宽/图块宽 的最小整数 +1
var tileCols = Math.ceil(width / this._tileWidth) + 1;
//图块行 15 大于等于 高/图块高 的最小整数 +1
var tileRows = Math.ceil(height / this._tileHeight) + 1;
//层宽 912
var layerWidth = tileCols * this._tileWidth;
//层高 720
var layerHeight = tileRows * this._tileHeight;
//下层位图
this._lowerBitmap = new Bitmap(layerWidth, layerHeight);
//上层位图
this._upperBitmap = new Bitmap(layerWidth, layerHeight);
this._layerWidth = layerWidth;
this._layerHeight = layerHeight;
/**--------------------------------------------------------------------------
* Z coordinate:
* 0 : Lower tiles 较下层图块
* 1 : Lower characters 较下层人物
* 3 : Normal characters 正常人物
* 4 : Upper tiles 较上层图块
* 5 : Upper characters 较上层人物
* 6 : Airship shadow 飞艇影子
* 7 : Balloon 气球
* 8 : Animation 动画
* 9 : Destination 目的地
*--------------------------------------------------------------------------
*/
//创建下层
this._lowerLayer = new Sprite();
//下层移动到 -20,-20
this._lowerLayer.move(-margin, -margin, width, height);
//下层z 为0
this._lowerLayer.z = 0;
//创建上层
this._upperLayer = new Sprite();
//上层移动到 -20,-20
this._upperLayer.move(-margin, -margin, width, height);
//上层z 为0
this._upperLayer.z = 4;
//添加4个子项精灵到层
for (var i = 0; i < 4; i++) {
this._lowerLayer.addChild(new Sprite(this._lowerBitmap));
this._upperLayer.addChild(new Sprite(this._upperBitmap));
}
this._upperLayer.opacity=125//修改透明度在这里.目前没有添加在游戏里修改的方法,不过在 SceneManager_scene往下一级找children应该就能找到它.......我觉得.什么时候出一个children表就好看了.
//添加下层
this.addChild(this._lowerLayer);
//添加上层
this.addChild(this._upperLayer);
};
})();
