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Removed repetative code.

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tarsupin 2018-07-14 20:09:36 -05:00 committed by GitHub
parent 00a38f744a
commit ad24a0b8ec
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 18 additions and 39 deletions
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57
src/tilemaps/components/CullTiles.js
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@ -26,66 +26,45 @@ var CullTiles = function (layer, camera, outputArray)
if (outputArray === undefined) { outputArray = []; }
outputArray.length = 0;
var y = 0;
var x = 0;
var tile = null;
var tilemapLayer = layer.tilemapLayer;
var tileW = Math.floor(layer.tileWidth * tilemapLayer.scaleX);
var tileH = Math.floor(layer.tileHeight * tilemapLayer.scaleY);
var tilemapLayer = layer.tilemapLayer;
var mapData = layer.data;
var mapWidth = layer.width;
var mapHeight = layer.height;
var tileW = Math.floor(layer.tileWidth * tilemapLayer.scaleX);
var tileH = Math.floor(layer.tileHeight * tilemapLayer.scaleY);
// Camera world view bounds, snapped for tile size
var boundsLeft = SnapFloor(camera.worldView.x, tileW) - (tilemapLayer.cullPaddingX * tileW);
var boundsRight = SnapCeil(camera.worldView.right, tileW) + (tilemapLayer.cullPaddingX * tileW);
var boundsTop = SnapFloor(camera.worldView.y, tileH) - (tilemapLayer.cullPaddingY * tileH);
var boundsBottom = SnapCeil(camera.worldView.bottom, tileH) + (tilemapLayer.cullPaddingY * tileH);
var skipCull = tilemapLayer.skipCull;
var drawLeft = skipCull ? 0 : Math.max(0, boundsLeft / layer.tileWidth);
var drawRight = skipCull ? mapWidth : Math.min(mapWidth, boundsRight / layer.tileWidth);
var drawTop = skipCull ? 0 : Math.max(0, boundsTop / layer.tileHeight);
var drawBottom = skipCull ? mapHeight : Math.min(mapHeight, boundsBottom / layer.tileHeight);
// If skipping cull, loop through every tile in the map.
if(tilemapLayer.skipCull)
for (y = drawTop; y < drawBottom; y++)
{
for (y = 0; y < mapHeight; y++)
for (x = drawLeft; x < drawRight; x++)
{
for (x = 0; x < mapWidth; x++)
tile = mapData[y][x];
if (!tile || tile.index === -1 || !tile.visible || tile.alpha === 0)
{
tile = mapData[y][x];
if (!tile || tile.index === -1 || !tile.visible || tile.alpha === 0)
{
continue;
}
outputArray.push(tile);
continue;
}
}
}
else
{
var drawLeft = Math.max(0, boundsLeft / layer.tileWidth);
var drawRight = Math.min(mapWidth, boundsRight / layer.tileWidth);
var drawTop = Math.max(0, boundsTop / layer.tileHeight);
var drawBottom = Math.min(mapHeight, boundsBottom / layer.tileHeight);
for (y = drawTop; y < drawBottom; y++)
{
for (x = drawLeft; x < drawRight; x++)
{
tile = mapData[y][x];
if (!tile || tile.index === -1 || !tile.visible || tile.alpha === 0)
{
continue;
}
outputArray.push(tile);
}
outputArray.push(tile);
}
}