Just some thoughts here.

I am developing on a SGS with a screen res of 800x480...
I was thinking about blitting etc for graphical user interface (menu, hud, etc)
But how can I take different screen resolutions into account, eg 480x320...


edit: I got a loading texture 800x480 that I want to blit, but Texture says that 800 is unsupported width, how would I go about making loading texture?

It is possible to initialize the skybox using
new SkyBox(1024);So without the textures,
However there is no way to set the textures at a later stadium.
At least, not that I could find.
Maybe add some functions like SkyBox.setNorth or SkyBox.setTextures(n, e, s, w) ?

I added a skybox to my game, but when I rotate my camera, I'm always facing the same side of the skybox.. its like its a far away billboarded object.
is there any fix for this?

(using http://www.jpct.net/forum2/index.php/topic,1873.msg13762.html#msg13762 )

So I got my terrain now.
What I need now is something like polygon picking?
I want to be able to tap the terrain at any position and return the world-space coordinates of where I tapped the terrain.
I think the most logical way to do this is to check which polygon is being tapped on, and return it's (x y and z) position..
I was looking at http://www.jpct.net/wiki/index.php/Picking but the 'fast way' does not work on android ( ? ) as world.getVisibilityList() does not exist..

What is better to use for a landscape/terrain with hills etc,
an 3D model (3ds?) or an Heightmap texture..

I have been screwing around with heightmaps for a bit now, attempting to make a nice (easy to use (HARD TO MAKE;o) class for it.
but is it really worth the effort.. ? or could I better use a model for terrain.. (looking at resource usage for mobile devices)

I'd rather use heightmaps, but what I cant figure out is a nice way to read the file..
As the one in the wiki (i posted) has like 3 for loops that needs to loop through the x*y size of the image.
and that consumes a whole lot of time..
I am trying to get a 256x256 heightmap image to load.. but it takes about 4 minutes just to loop through the for's..
Anyone know of a better way to handle heightmaps?

Or maybe a proper way to use a model with collision detection (get y from specific x/z on the object)..

Kind regards,
Kaiidyn..

How would i go about making a working input text field?
Like enter your name to add high-score or something.

Thanks in advance,
Kaiidyn.

managed to get heightmap working, and want to share it with all of you

When using it make sure you have a Texture Manager with a TextureID ready, (I used a flat gray 128x128 image for this)

public class Terrain {

public static float HighestPoint = 0;


static Bitmap bmp = null;
static String pixel = null;
public static Object3D Generate(int X_SIZE, int Z_SIZE, TextureManager tm, String TextureID){

bmp = BitmapFactory.decodeResource(SpaceGrabber.resources, R.drawable.terrain); // the heightmap texture (128x128 due to memory limitations?)

float[][] terrain = new float[X_SIZE][Z_SIZE];

for (int x = 0; x < X_SIZE-1; x++) {
for (int z = 0; z < Z_SIZE-1; z++) {

pixel = Integer.toString(bmp.getPixel(x, z), 16);
terrain[x][z] = Integer.parseInt(pixel.charAt(1) + "" + pixel.charAt(2), 16);

if(terrain[x][z] > HighestPoint){
HighestPoint = terrain[x][z];
}
}

}
for (int x = 0; x < X_SIZE - 1; x++) {
for (int z = 0; z < Z_SIZE - 1; z++) {
terrain[x][z] = (terrain[x][z] + terrain[x + 1][z] + terrain[x][z + 1] + terrain[x + 1][z + 1]) / 4;
}
}
Object3D ground = new Object3D(X_SIZE * Z_SIZE * 2);

float xSizeF = (float) X_SIZE;
float zSizeF = (float) Z_SIZE;

int id = tm.getTextureID(TextureID); // I used a gray 128x128 texture

for (int x = 0; x < X_SIZE - 1; x++) {
for (int z = 0; z < Z_SIZE - 1; z++) {

TextureInfo ti = new TextureInfo(id, (x / xSizeF), (z / zSizeF), ((x + 1) / xSizeF), (z / zSizeF), (x / xSizeF), ((z + 1) / zSizeF));
ground.addTriangle(new SimpleVector(x * 10, terrain[x][z], z * 10), new SimpleVector((x + 1) * 10, terrain[x + 1][z], z * 10),
new SimpleVector(x * 10, terrain[x][z + 1], (z + 1) * 10), ti);

ti = new TextureInfo(id, (x / xSizeF), ((z + 1) / zSizeF), ((x + 1) / xSizeF), (z / zSizeF), ((x + 1) / xSizeF), ((z + 1) / zSizeF));
ground.addTriangle(new SimpleVector(x * 10, terrain[x][z + 1], (z + 1) * 10), new SimpleVector((x + 1) * 10, terrain[x + 1][z], z * 10), new SimpleVector((x + 1) * 10,
terrain[x + 1][z + 1], (z + 1) * 10), ti);
}
}

return ground;
}
}