the world generation works again (i guess they were still set too high), but i still cant move weirdly enough
Zurah wrote ...
2021/1/13
removing object from array on world by clicking at it
Zurah wrote...
the world generation works again (i guess they were still set too high), but i still cant move weirdly enoughits empty (as empty as a new class is). should i move the movement code from MyWorld.class into Spieler.class?
edit: tried that approach and it doesnt work
Zurah wrote...
its empty (as empty as a new class is). should i move the movement code from MyWorld.class into Spieler.class?
edit: tried that approach and it doesnt worksetLocation(MyWorld.playerX, MyWorld.playerY);
player movement works again, but now the "camera" doesnt follow the player anymore.
i intended it to be centered on the player (so that the player is always in the same position on the screen) but can still freely move around the map
Zurah wrote...
player movement works again, but now the "camera" doesnt follow the player anymore.
i intended it to be centered on the player (so that the player is always in the same position on the screen) but can still freely move around the mapsure, no worries ^^ it was a mistake of me not to indicate that the world was planned to be designed that way ^^
Zurah wrote...
sure, no worries ^^ it was a mistake of me not to indicate that the world was planned to be designed that way ^^import greenfoot.*;
public class MyWorld extends World
{
static final int WIDE = 27, HIGH = 15, CELL = 40;
static final int BIG_X = 50, BIG_Y = 30;
int[][] grid = new int[BIG_Y][BIG_X];
int scrollX, scrollY;
Actor player = new Player();
public MyWorld()
{
super(WIDE, HIGH, CELL);
setPaintOrder(Player.class);
setup();
addObject(player, WIDE/2, HIGH/2);
}
/** Populates the world */
private void setup()
{
// building grid
for (int y=8; y<BIG_Y; y++) for (int x=0; x<BIG_X; x++) grid[y][x] = 1;
for (int y=10; y<BIG_Y; y++) for (int x=0; x<BIG_X; x++)
if (Greenfoot.getRandomNumber(5) == 0) grid[y][x] = 2;
// populating world as per grid
for (int y=0; y<HIGH; y++) for (int x = 0; x<WIDE; x++) genActor(x, y);
}
/** Adds an actor at given location if one should exist there */
private void genActor(int x, int y)
{
switch(grid[y+scrollY][x+scrollX])
{
case 1: addObject(new Dirt(), x, y); break;
case 2: addObject(new Mineral(2), x, y); break;
}
}
/** Performs player movement and scrolling */
public void act()
{
// check moving
int dx = 0, dy = 0;
if (Greenfoot.isKeyDown("D")) dx++;
if (Greenfoot.isKeyDown("A")) dx--;
if (Greenfoot.isKeyDown("S")) dy++;
if (Greenfoot.isKeyDown("W")) dy--;
if (dx*dy != 0 || dx+dy == 0) return;
// do no more if trying to move past edge
int x = player.getX(), y = player.getY();
if (x+dx < 0 || x+dx > WIDE-1) return;
if (y+dy < 0 || y+dy > HIGH-1) return;
// move player
player.setLocation(player.getX()+dx, player.getY()+dy);
// scroll, if able
if (!(dx == -1 && scrollX == 0) &&
!(dy == -1 && scrollY == 0) &&
!(dx == 1 && scrollX == BIG_X-WIDE) &&
!(dy == 1 && scrollY == BIG_Y-HIGH)) scroll(dx, dy);
// time delay when moving
Greenfoot.delay(20);
}
/** Scrolls the actors, if needed (removing and adding as required) */
private void scroll(int dx, int dy)
{
// do not scroll if player is not moving away from center
if (dx == 1 && player.getX() <= WIDE/2) return;
if (dx == -1 && player.getX() >= WIDE/2) return;
if (dy == 1 && player.getY() <= HIGH/2) return;
if (dy == -1 && player.getY() >= HIGH/2) return;
// scroll all actor (including player -- toward center)
for (Object obj : getObjects(null))
{
Actor actor = (Actor) obj;
int newX = actor.getX()-dx, newY = actor.getY()-dy;
actor.setLocation(newX, newY);
// remove the actor if leaving world view
if (newX < 0 || newX > WIDE-1 || newY < 0 || newY > HIGH-1)
removeObject(actor);
}
// adjust scroll values
scrollX += dx;
scrollY += dy;
// adds actors coming into world view
if (dx == 1) for (int y=0; y<HIGH; y++) genActor(WIDE-1, y);
if (dx == -1) for (int y=0; y<HIGH; y++) genActor(0, y);
if (dy == 1) for (int x=0; x<WIDE; x++) genActor(x, HIGH-1);
if (dy == -1) for (int x=0; x<WIDE; x++) genActor(x, 0);
}
}thank you so much for your work ^^ everything is working fine now
the only functionality i lost is collision with other objects in the world. i tried my old approach by using
but that resulted in a crash because line 45 defined playerX and playerY (renamed those) as 0, so if it subtracts one, it will go into negative causing a out of bounds crash. if you by chance know of a fix for this (perhaps using the getOneObjectAtOffset() method) let me know ^^
but again, thanks already so much for all the quick help provided, i hope it didnt take you too much time haha
if(Greenfoot.isKeyDown("S") && world[playerX][playerY + 1] == 0)...Zurah wrote...
if(Greenfoot.isKeyDown("S") && world[playerX][playerY + 1] == 0)...if (Greenfoot.isKeyDown("S") && getY() < 15 && world[playerX}[playerY + 1] == 0)...
if (Greenfoot.isKeyDown("S") && getY() < 15 && world[playerX}[playerY + 1] == 0)...There are more replies on the next page.