检查互动程序是否在摄影机视图java swing中时出现性能问题

我正在做一个基于瓷砖的游戏，我用柏林的噪音生成一张随机地图。当我的地图是100*100瓷砖时，效果很好，但当我的地图是1000*1000瓷砖时，我会遇到性能问题，我通过检查我的瓷砖是否在相机的视图中而不是绘制它们来解决大多数问题，但仍然有问题。以下是我的一些代码：

装载

void loadMap(int size)
{
    blocks.clear();
    float[][] seed1 =  Perlin.GenerateWhiteNoise(size, size);
    float[][] seed = Perlin.GenerateSmoothNoise(seed1, 3);
    for (int i = 0; i < seed.length; i++)
    {
        for ( int j = 0; j < seed[i].length; j++)
        {
            if(seed[i][j] < 0.5)
            {
                blocks.add(new Block(i * Block.blockSize, j * Block.blockSize, eBlockType.WATER));
            }

            else if(seed[i][j] > 0.8)
            {
                blocks.add(new Block(i * Block.blockSize, j * Block.blockSize, eBlockType.GRASS));
            }

            else
            {
                blocks.add(new Block(i * Block.blockSize, j * Block.blockSize, eBlockType.SAND));
            }
        }
    }
}

块类

package com.ymail.sanchixx.game;

import java.awt.Graphics;
import java.awt.Rectangle;

public class Block
{

    enum eBlockType
    {
        NULL(-1), STONE(0), STONEBRICK(1), // these are collision
        COLLISION_BLOCKS(2), // PlaceHolder
        GRASS(3), PLANK(4), WATER(5), SAND(6); // these are non-collision

        private int code;

        eBlockType(int c) 
        {
            code = c;
        }

        public int getCode() 
        {
            return code;
        }
    };

    eBlockType m_type = eBlockType.NULL;
    int m_x;
    int m_y;
    static int blockSize = 16;

    Block(int x, int y, eBlockType type)
    {
        m_x = x;
        m_y = y;
        m_type = type;
    }

    boolean isNonCollisionBlock()
    {
        if(m_type.getCode() > eBlockType.COLLISION_BLOCKS.getCode())
        {
            return true;
        }

        return false;
    }

    static boolean collisionDown(Entity e, int v)
    {
        Rectangle player = new Rectangle(e.getX(), e.getY() + v, e.getWidth(), e.getHeight());
        for(Block i : Game.blocks)
        {
            if(!i.isNonCollisionBlock())
            {
                int blockWidth = blockSize;
                int blockHeight = blockSize;
                Rectangle block = new Rectangle(i.getX(), i.getY(), blockWidth, blockHeight);
                if (player.intersects(block))
                {
                    e.setY(e.getY() - (e.getY() - (i.getY() - e.getHeight())));
                    return true;
                }
            }
        }
        return false;
    }

    static boolean collisionUp(Entity e, int v)
    {
        Rectangle player = new Rectangle(e.getX(), e.getY() -v, e.getWidth(), e.getHeight());
        for(Block i : Game.blocks)
        {
            if(!i.isNonCollisionBlock())
            {
                int blockWidth = blockSize;
                int blockHeight = blockSize;
                Rectangle block = new Rectangle(i.getX(), i.getY(), blockWidth, blockHeight);
                if (player.intersects(block))
                {
                    e.setY(e.getY() - (e.getY() - (i.getY())) + blockHeight);
                    return true;
                }
            }
        }
        return false;
    }

    static boolean collisionRight(Entity e, int v)
    {
        Rectangle player = new Rectangle(e.getX() + v, e.getY(), e.getWidth(), e.getHeight());
        for(Block i : Game.blocks)
        {
            if(!i.isNonCollisionBlock())
            {
                int blockWidth = blockSize;
                int blockHeight = blockSize;
                Rectangle block = new Rectangle(i.getX(), i.getY(), blockWidth, blockHeight);
                if (player.intersects(block))
                {
                    e.setX(e.getX() - (e.getX() - (i.getX() - e.getWidth())));
                    return true;
                }
            }
        }
        return false;
    }

    static boolean collisionLeft(Entity e, int v)
    {
        Rectangle player = new Rectangle(e.getX() - v, e.getY(), e.getWidth(), e.getHeight());
        for(Block i : Game.blocks)
        {
            if(!i.isNonCollisionBlock())
            {
                int blockWidth = blockSize;
                int blockHeight = blockSize;
                Rectangle block = new Rectangle(i.getX(), i.getY(), blockWidth, blockHeight);
                if (player.intersects(block))
                {
                    e.setX(e.getX() - (e.getX() - (i.getX())) + e.getWidth());
                    return true;
                }
            }
        }
        return false;
    }

    static Boolean swimmingInBlock(Entity e, eBlockType type)
    {
        Rectangle player = new Rectangle(e.getX(), e.getY() + e.getHeight()/2, e.getWidth(), e.getHeight()/2);
        for(Block i : Game.blocks)
        {
            if(i.isNonCollisionBlock())
            {
                int blockWidth = blockSize;
                int blockHeight = blockSize;
                Rectangle block = new Rectangle(i.getX(), i.getY(), blockWidth, blockHeight);
                if (player.intersects(block))
                {
                    if(i.getType() != type)
                    {
                        return false;
                    }
                }
            }
        }

        return true;
    }

    eBlockType getType()
    {
        return m_type;
    }

    int getX()
    {
        return m_x;
    }

    int getY()
    {
        return m_y;
    }

    void draw(Graphics g)
    {
        switch(m_type)
        {
        case GRASS:
            g.drawImage(Game.blockImg[0], m_x, m_y, null);
            break;
        case WATER:
            g.drawImage(Game.blockImg[4], m_x, m_y, null);
            break;
        case SAND:
            g.drawImage(Game.blockImg[6], m_x, m_y, null);
            break;
        case STONE:
            g.drawImage(Game.blockImg[1], m_x, m_y, null);
            break;

        default:
            break;
        }
    }
}

感谢您

您仍然在访问N2个平铺以测试可见性，即使您选择仅渲染某些平铺。相反，使用仅渲染可见的平铺，其中可见性仅由面板/平铺几何体确定。概述的方法用于优化

JTable

package com.ymail.sanchixx.game;

import java.awt.Graphics;
import java.awt.Rectangle;

public class Block
{

    enum eBlockType
    {
        NULL(-1), STONE(0), STONEBRICK(1), // these are collision
        COLLISION_BLOCKS(2), // PlaceHolder
        GRASS(3), PLANK(4), WATER(5), SAND(6); // these are non-collision

        private int code;

        eBlockType(int c) 
        {
            code = c;
        }

        public int getCode() 
        {
            return code;
        }
    };

    eBlockType m_type = eBlockType.NULL;
    int m_x;
    int m_y;
    static int blockSize = 16;

    Block(int x, int y, eBlockType type)
    {
        m_x = x;
        m_y = y;
        m_type = type;
    }

    boolean isNonCollisionBlock()
    {
        if(m_type.getCode() > eBlockType.COLLISION_BLOCKS.getCode())
        {
            return true;
        }

        return false;
    }

    static boolean collisionDown(Entity e, int v)
    {
        Rectangle player = new Rectangle(e.getX(), e.getY() + v, e.getWidth(), e.getHeight());
        for(Block i : Game.blocks)
        {
            if(!i.isNonCollisionBlock())
            {
                int blockWidth = blockSize;
                int blockHeight = blockSize;
                Rectangle block = new Rectangle(i.getX(), i.getY(), blockWidth, blockHeight);
                if (player.intersects(block))
                {
                    e.setY(e.getY() - (e.getY() - (i.getY() - e.getHeight())));
                    return true;
                }
            }
        }
        return false;
    }

    static boolean collisionUp(Entity e, int v)
    {
        Rectangle player = new Rectangle(e.getX(), e.getY() -v, e.getWidth(), e.getHeight());
        for(Block i : Game.blocks)
        {
            if(!i.isNonCollisionBlock())
            {
                int blockWidth = blockSize;
                int blockHeight = blockSize;
                Rectangle block = new Rectangle(i.getX(), i.getY(), blockWidth, blockHeight);
                if (player.intersects(block))
                {
                    e.setY(e.getY() - (e.getY() - (i.getY())) + blockHeight);
                    return true;
                }
            }
        }
        return false;
    }

    static boolean collisionRight(Entity e, int v)
    {
        Rectangle player = new Rectangle(e.getX() + v, e.getY(), e.getWidth(), e.getHeight());
        for(Block i : Game.blocks)
        {
            if(!i.isNonCollisionBlock())
            {
                int blockWidth = blockSize;
                int blockHeight = blockSize;
                Rectangle block = new Rectangle(i.getX(), i.getY(), blockWidth, blockHeight);
                if (player.intersects(block))
                {
                    e.setX(e.getX() - (e.getX() - (i.getX() - e.getWidth())));
                    return true;
                }
            }
        }
        return false;
    }

    static boolean collisionLeft(Entity e, int v)
    {
        Rectangle player = new Rectangle(e.getX() - v, e.getY(), e.getWidth(), e.getHeight());
        for(Block i : Game.blocks)
        {
            if(!i.isNonCollisionBlock())
            {
                int blockWidth = blockSize;
                int blockHeight = blockSize;
                Rectangle block = new Rectangle(i.getX(), i.getY(), blockWidth, blockHeight);
                if (player.intersects(block))
                {
                    e.setX(e.getX() - (e.getX() - (i.getX())) + e.getWidth());
                    return true;
                }
            }
        }
        return false;
    }

    static Boolean swimmingInBlock(Entity e, eBlockType type)
    {
        Rectangle player = new Rectangle(e.getX(), e.getY() + e.getHeight()/2, e.getWidth(), e.getHeight()/2);
        for(Block i : Game.blocks)
        {
            if(i.isNonCollisionBlock())
            {
                int blockWidth = blockSize;
                int blockHeight = blockSize;
                Rectangle block = new Rectangle(i.getX(), i.getY(), blockWidth, blockHeight);
                if (player.intersects(block))
                {
                    if(i.getType() != type)
                    {
                        return false;
                    }
                }
            }
        }

        return true;
    }

    eBlockType getType()
    {
        return m_type;
    }

    int getX()
    {
        return m_x;
    }

    int getY()
    {
        return m_y;
    }

    void draw(Graphics g)
    {
        switch(m_type)
        {
        case GRASS:
            g.drawImage(Game.blockImg[0], m_x, m_y, null);
            break;
        case WATER:
            g.drawImage(Game.blockImg[4], m_x, m_y, null);
            break;
        case SAND:
            g.drawImage(Game.blockImg[6], m_x, m_y, null);
            break;
        case STONE:
            g.drawImage(Game.blockImg[1], m_x, m_y, null);
            break;

        default:
            break;
        }
    }
}