Android Open Source - Station42 Room Resident System

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Back to project page Station42.

License

The source code is released under:

Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUC...

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Java Source Code

package com.station42.optimizations;
//w  ww  .ja v a  2s  .c  o  m
import com.station42.base.Engine;
import com.station42.base.EngineUpdateListener;
import com.station42.base.Entity;
import com.station42.basic.EntityLocation;
import com.station42.world.Room;
import com.station42.world.World;

public class RoomResidentSystem implements EngineUpdateListener {
  Room[][][] rooms;
  @Override
  public void update(Engine engine, float delta) {
    if (rooms == null)
      initializeRoomMap(engine);
    if (rooms != null) { // Initialization succeeded
      for (Room[][] world : rooms) {
        for (Room[] roomRow : world) {
          for (Room room : roomRow) {
            room.clearResidents();
          }
        }
      }
      for (Entity roomEntity : engine.getEntitiesWithComponent(RoomResident.class)) {
        EntityLocation location = roomEntity.getComponent(EntityLocation.class);
        int leftX = (int)((location.getCenterX() - Room.ROOM_SIZE / 2) / Room.ROOM_SIZE);
        int bottomY = (int)((location.getCenterY() - Room.ROOM_SIZE / 2) / Room.ROOM_SIZE);
        int rightX = leftX + 1;
        int topY = bottomY + 1;
        int[] worldIds;
        if (roomEntity.getComponent(World.class) == null)
          worldIds = new int[] { 0, 1};
        else
          worldIds = new int[] { roomEntity.getComponent(World.class).worldId };
        for (int world : worldIds) {
          for (int x = Math.max(leftX, 0);x < rooms[world].length && x <= rightX;x++) {
            for (int y = Math.max(bottomY, 0);y < rooms[world][x].length && y <= topY;y++) {
              rooms[world][x][y].addResident(roomEntity);
            }
          }
        }
      }
    }
  }
  private void initializeRoomMap(Engine engine) {
    int maxX = -1;
    int maxY = -1;
    for (Entity roomEntity : engine.getEntitiesWithComponent(Room.class)) {
      Room room = roomEntity.getComponent(Room.class);
      if (room.bounds.x / Room.ROOM_SIZE > maxX) {
        maxX = (int) (room.bounds.x / Room.ROOM_SIZE);
      }
      if (room.bounds.y / Room.ROOM_SIZE > maxY) {
        maxY = (int) (room.bounds.y / Room.ROOM_SIZE);
      }
    }
    if (maxX != -1 && maxY != -1) {
      rooms = new Room[2][maxX + 1][maxY + 1];
      for (Entity roomEntity : engine.getEntitiesWithComponent(Room.class)) {
        Room room = roomEntity.getComponent(Room.class);
        int roomX = (int) ((room.bounds.x + 5) / Room.ROOM_SIZE);
        int roomY = (int) ((room.bounds.y + 5) / Room.ROOM_SIZE);
        if (rooms[roomEntity.getComponent(World.class).worldId][roomX][roomY] != null)
          throw new RuntimeException("BAD ROOMS!");
        rooms[roomEntity.getComponent(World.class).worldId][roomX][roomY] = room;
      }
    }
  }

}

Java Source Code List