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Update tile culling to factor in the new scale

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This commit is contained in:
Michael Hadley 2017-11-25 20:47:47 -06:00
parent aaa0d41f5d
commit 9d29948a02
1 changed files with 7 additions and 5 deletions
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12
v3/src/gameobjects/tilemap/components/CullTiles.js
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@ -10,6 +10,8 @@ var CullTiles = function (layer, camera, outputArray)
var mapHeight = layer.height;
var left = (camera.scrollX * tilemapLayer.scrollFactorX) - tilemapLayer.x;
var top = (camera.scrollY * tilemapLayer.scrollFactorY) - tilemapLayer.y;
var tileWidth = layer.tileWidth * tilemapLayer.scaleX;
var tileHeight = layer.tileHeight * tilemapLayer.scaleY;
for (var row = 0; row < mapHeight; ++row)
{
@ -19,13 +21,13 @@ var CullTiles = function (layer, camera, outputArray)
if (tile === null || (tile.index <= 0 && tilemapLayer.skipIndexZero)) { continue; }
var tileX = tile.worldX - left;
var tileY = tile.worldY - top;
var cullW = camera.width + tile.width;
var cullH = camera.height + tile.height;
var tileX = tile.x * tileWidth - left;
var tileY = tile.y * tileHeight - top;
var cullW = camera.width + tileWidth;
var cullH = camera.height + tileHeight;
if (tile.visible &&
tileX > -tile.width && tileY > -tile.height &&
tileX > -tileWidth && tileY > -tileHeight &&
tileX < cullW && tileY < cullH)
{
outputArray.push(tile);