Greetings.
I am trying to convert my game from flat 2D to Isometric 2.5D. I have mocked up a prototype demo that displays all the tiles correctly, but when I go to move the Y jumps from up to left and from down to right…
I am sure I am doing something stupid…
Before I get into the technical details, if someone would be willing to jump onto Skype, I am signed on as jcannonb, and would be happy to send the prototype project in full over.
My method for converting the coordinates is:
public static Point getIsoXY(int tilex, int tiley, int isoTileWidth, int isoTileHeight)
{
int x = tilexisoTileWidth;
int y = tileyisoTileHeight/2;
if (tiley %2 == 1)
{
x = x- isoTileWidth/2;
}
//y -= isoTileHeight/2;
return new Point(x, y);
}
When I am moving up down left and right, I do this:
if (k == KeyEvent.VK_UP)
{
gamePanel.images.showY–;
}
if (k == KeyEvent.VK_DOWN)
{
gamePanel.images.showY++;
}
if (k == KeyEvent.VK_LEFT)
{
gamePanel.images.showX--;
}
if (k == KeyEvent.VK_RIGHT)
{
gamePanel.images.showX++;
}
ShowX and ShowY manipulate the top most portion of the map to be displayed in this case…
To display the map, I do this:
public void draw(Graphics g)
{
BufferedImage current;
wvp.clearBuffer();
for (int y = 0; y < 30; y++)
{
for (int x = 0; x < 10; x++)
{
current = Map[x+showX][y+showY]==0?grass:water;
wvp.WriteTile(current, x, y, 0, 0);
}
}
//Place player in the center
wvp.WriteTile(dirt, (10/2)-1, 30/2-1, 0, 0);
g.drawImage(vp.getSurface(), 20, 20, null);
}
Finally, Writing the tile looks like this:
public void WriteTile(Image i, int tilex, int tiley, int stepX, int stepY)
{
Point xy = IsoUtil.getIsoXY(tilex, tiley, terrain_width, terrain_height);
//System.out.printf("Writing at %d:%d\n",xy.x-stepX,xy.y-stepY);
vp.WriteImage(i, xy.x-stepX,xy.y-stepY);
}
Thanks in advance…
