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Simple Java Tileset Example

Tilesets are a common technique in game development to create all kinds of tile-based games (from strategy to RPG games).

Here’s a example of simple 2D isometric square tilesets. I decided to use 32×32 pixels tiles and store 10 tiles per row in a single image:

I created a class called public class JGameCanvas that extends from JPanel from swing:

package game;
 
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import javax.swing.JPanel;
 
enum Tile {
GRASS, GRASS_STONE, GRASS_BAGS, T3, T4, T5, T6, T7, T8, T9,
TREE, TREE_CHOMP, TREE_DEAD, T13, T14, T15, T16, T17, T18, T19,
ROAD_H, ROAD_V, ROAD_HV_DOWN, ROAD_HV_UP, ROAD_VH_RIGHT, ROAD_VH_LEFT, ROAD_CROSS, T27, T28, T29,
WALL, WALL_POSTER, WALL_END_RIGHT, WALL_END_LEFT, T34, T35, T36, T37, T38, T39,
T40, T41, T42, T43, T44, T45, T46, T47, T48, T49,
NEWS, T51,      RES_1, RES_2, BUSS_1, BUSS_2, HOSP_1, HOSP_2, MARK_1, MARK_2,
PIZZ_1, PIZZ_2, RES_3, RES_4, BUSS_3, BUSS_4, HOSP_3, HOSP_4, MARK_3, MARK_4,
PIZZ_3, PIZZ_4, RES_5, RES_6, BUSS_5, BUSS_6, HOSP_5, HOSP_6, MARK_5, MARK_6
}
 
public class JGameCanvas extends JPanel{
    private static final int tW = 32; // tile width
    private static final int tH = 32; // tile height
    private static final Tile map[][] =
    {{Tile.TREE,Tile.TREE, Tile.TREE, Tile.ROAD_V, Tile.GRASS, Tile.TREE, Tile.TREE_DEAD, Tile.GRASS_STONE, Tile.TREE, Tile.TREE},
     {Tile.WALL, Tile.WALL_POSTER, Tile.WALL_END_RIGHT , Tile.ROAD_V, Tile.WALL_END_LEFT, Tile.WALL, Tile.WALL_END_RIGHT, Tile.TREE_CHOMP, Tile.GRASS_STONE, Tile.GRASS_STONE},
     {Tile.GRASS,Tile.GRASS, Tile.GRASS_STONE, Tile.ROAD_V, Tile.GRASS, Tile.GRASS, Tile.GRASS, Tile.GRASS, Tile.GRASS, Tile.GRASS},
     {Tile.PIZZ_1,Tile.PIZZ_2, Tile.GRASS, Tile.ROAD_V, Tile.GRASS, Tile.GRASS, Tile.GRASS, Tile.GRASS, Tile.GRASS, Tile.GRASS},
     {Tile.PIZZ_3,Tile.PIZZ_4, Tile.GRASS, Tile.ROAD_V, Tile.GRASS, Tile.GRASS, Tile.MARK_1, Tile.MARK_2, Tile.HOSP_1, Tile.HOSP_2},
     {Tile.ROAD_H,Tile.ROAD_H, Tile.ROAD_H, Tile.ROAD_VH_LEFT, Tile.TREE, Tile.TREE_DEAD, Tile.MARK_3, Tile.MARK_4, Tile.HOSP_3, Tile.HOSP_4},
     {Tile.GRASS,Tile.BUSS_1, Tile.BUSS_2, Tile.ROAD_V, Tile.TREE, Tile.NEWS, Tile.MARK_5, Tile.MARK_6, Tile.HOSP_5, Tile.HOSP_6},
     {Tile.GRASS,Tile.BUSS_3, Tile.BUSS_4, Tile.ROAD_VH_RIGHT, Tile.ROAD_H, Tile.ROAD_H, Tile.ROAD_H, Tile.ROAD_H, Tile.ROAD_H, Tile.ROAD_H},
     {Tile.GRASS,Tile.BUSS_5, Tile.BUSS_6, Tile.ROAD_V, Tile.GRASS, Tile.GRASS, Tile.GRASS, Tile.GRASS, Tile.GRASS, Tile.GRASS},
     {Tile.GRASS,Tile.GRASS, Tile.GRASS, Tile.ROAD_V, Tile.GRASS, Tile.GRASS, Tile.GRASS, Tile.GRASS, Tile.GRASS, Tile.GRASS}
    };
 
    private Image tileset;
 
    public JGameCanvas() {
        tileset = Toolkit.getDefaultToolkit().getImage(this.getClass().getResource("resources/tileset.png"));
    }
 
    @Override
    protected void paintComponent(Graphics g) {
        g.setColor(Color.black);
        g.fillRect(0, 0, getWidth(), getHeight());
 
        for(int i=0;i<10;i++)
            for(int j=0;j<10;j++)
                drawTile(g, map[j][i], i*tW,j*tH);
    }
 
    protected void drawTile(Graphics g, Tile t, int x, int y){
        // map Tile from the tileset
        int mx = t.ordinal()%10;
        int my = t.ordinal()/10;
        g.drawImage(tileset, x, y, x+tW, y+tH,
                mx*tW, my*tH,  mx*tW+tW, my*tH+tH, this);
    }
}

Program running:

Those graphics I created for the game Batalhão and are under Creative Commons Attribution Share Alike 3.0 license. The source code is under GPL license, download the NetBeans project with sources: tileset.tar.bz2.

Published inenglish

5 Comments

  1. Wow, great job. Thanks for your “tutorials”. It is very useful for my ZooTyccon simulation game project in my OOP lecture assignment.

  2. James Bell James Bell

    Congratulations, great example.
    This is a great site for learning.
    One question, how can I make a object move randomly in this TileSet?
    Tanks.

  3. Devlin Devlin

    @James

    By adding and drawing an image, implementing sidescrolling and map boundaries, adding animation, and using the rand() function in the java math library to determine the x and y coordinate changes that would result in it travelling…

    That “One question” could span a whole bunch of tutorials. Learn Java.

  4. on on

    Please code to me for my programming Studying

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