/*******************************************************************************
* Copyright 2013 See AUTHORS file.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package com.badlogic.gdx.maps.tiled.renderers;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.C1;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.C2;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.C3;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.C4;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.U1;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.U2;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.U3;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.U4;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.V1;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.V2;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.V3;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.V4;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.X1;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.X2;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.X3;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.X4;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.Y1;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.Y2;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.Y3;
import static com.badlogic.gdx.graphics.g2d.SpriteBatch.Y4;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.maps.MapObject;
import com.badlogic.gdx.maps.tiled.TiledMap;
import com.badlogic.gdx.maps.tiled.TiledMapTile;
import com.badlogic.gdx.maps.tiled.TiledMapTileLayer;
import com.badlogic.gdx.maps.tiled.TiledMapTileLayer.Cell;
public class OrthogonalTiledMapRenderer extends BatchTiledMapRenderer {
private float[] vertices = new float[20];
public OrthogonalTiledMapRenderer(TiledMap map) {
super(map);
}
public OrthogonalTiledMapRenderer(TiledMap map, SpriteBatch spriteBatch) {
super(map, spriteBatch);
}
public OrthogonalTiledMapRenderer(TiledMap map, float unitScale) {
super(map, unitScale);
}
public OrthogonalTiledMapRenderer(TiledMap map, float unitScale, SpriteBatch spriteBatch) {
super(map, unitScale, spriteBatch);
}
@Override
public void renderObject (MapObject object) {
}
@Override
public void renderTileLayer (TiledMapTileLayer layer) {
final Color batchColor = spriteBatch.getColor();
final float color = Color.toFloatBits(batchColor.r, batchColor.g, batchColor.b, batchColor.a * layer.getOpacity());
final int layerWidth = layer.getWidth();
final int layerHeight = layer.getHeight();
final float layerTileWidth = layer.getTileWidth() * unitScale;
final float layerTileHeight = layer.getTileHeight() * unitScale;
final int col1 = Math.max(0, (int) (viewBounds.x / layerTileWidth));
final int col2 = Math.min(layerWidth, (int) ((viewBounds.x + viewBounds.width + layerTileWidth) / layerTileWidth));
final int row1 = Math.max(0, (int) (viewBounds.y / layerTileHeight));
final int row2 = Math.min(layerHeight, (int) ((viewBounds.y + viewBounds.height + layerTileHeight) / layerTileHeight));
float y = row1 * layerTileHeight;
float xStart = col1 * layerTileWidth;
final float[] vertices = this.vertices;
for (int row = row1; row < row2; row++) {
float x = xStart;
for (int col = col1; col < col2; col++) {
final TiledMapTileLayer.Cell cell = layer.getCell(col, row);
if(cell == null) {
x += layerTileWidth;
continue;
}
final TiledMapTile tile = cell.getTile();
if (tile != null) {
final boolean flipX = cell.getFlipHorizontally();
final boolean flipY = cell.getFlipVertically();
final int rotations = cell.getRotation();
TextureRegion region = tile.getTextureRegion();
float x1 = x;
float y1 = y;
float x2 = x1 + region.getRegionWidth() * unitScale;
float y2 = y1 + region.getRegionHeight() * unitScale;
float u1 = region.getU();
float v1 = region.getV2();
float u2 = region.getU2();
float v2 = region.getV();
vertices[X1] = x1;
vertices[Y1] = y1;
vertices[C1] = color;
vertices[U1] = u1;
vertices[V1] = v1;
vertices[X2] = x1;
vertices[Y2] = y2;
vertices[C2] = color;
vertices[U2] = u1;
vertices[V2] = v2;
vertices[X3] = x2;
vertices[Y3] = y2;
vertices[C3] = color;
vertices[U3] = u2;
vertices[V3] = v2;
vertices[X4] = x2;
vertices[Y4] = y1;
vertices[C4] = color;
vertices[U4] = u2;
vertices[V4] = v1;
if (flipX) {
float temp = vertices[U1];
vertices[U1] = vertices[U3];
vertices[U3] = temp;
temp = vertices[U2];
vertices[U2] = vertices[U4];
vertices[U4] = temp;
}
if (flipY) {
float temp = vertices[V1];
vertices[V1] = vertices[V3];
vertices[V3] = temp;
temp = vertices[V2];
vertices[V2] = vertices[V4];
vertices[V4] = temp;
}
if (rotations != 0) {
switch (rotations) {
case Cell.ROTATE_90: {
float tempV = vertices[V1];
vertices[V1] = vertices[V2];
vertices[V2] = vertices[V3];
vertices[V3] = vertices[V4];
vertices[V4] = tempV;
float tempU = vertices[U1];
vertices[U1] = vertices[U2];
vertices[U2] = vertices[U3];
vertices[U3] = vertices[U4];
vertices[U4] = tempU;
break;
}
case Cell.ROTATE_180: {
float tempU = vertices[U1];
vertices[U1] = vertices[U3];
vertices[U3] = tempU;
tempU = vertices[U2];
vertices[U2] = vertices[U4];
vertices[U4] = tempU;
float tempV = vertices[V1];
vertices[V1] = vertices[V3];
vertices[V3] = tempV;
tempV = vertices[V2];
vertices[V2] = vertices[V4];
vertices[V4] = tempV;
break;
}
case Cell.ROTATE_270: {
float tempV = vertices[V1];
vertices[V1] = vertices[V4];
vertices[V4] = vertices[V3];
vertices[V3] = vertices[V2];
vertices[V2] = tempV;
float tempU = vertices[U1];
vertices[U1] = vertices[U4];
vertices[U4] = vertices[U3];
vertices[U3] = vertices[U2];
vertices[U2] = tempU;
break;
}
}
}
spriteBatch.draw(region.getTexture(), vertices, 0, 20);
x += layerTileWidth;
}
}
y += layerTileHeight;
}
}
}