danpost wrote...
Okay, You call it isShowing:
return isShowing;
JollyGreenGiant wrote ...
2020/4/26
How do i make a simple memory card game?
It works now, thank you so much!
All I need to do is to match the images and that will be it completed.
Okay. Next thing is what to do when the second card is flipped up. Regardless of whether it matches the first card, you will probably want the card to remain face up for a short moment so the player will get a chance to see what it was. So, you need and int timer field that will run from some positive value down to zero. When it is positive (while the two picked cards are face up), there should not be any user interactions (no mouse clicking). So, add the field:
and then at the beginning of the act method, insert the following lines:
Now, the 'else' part for picking the second card can now be:
Now, after picking two cards, there should be a short delay before the picked cards are rotated. I only have them rotating so you can judge how long the delay lasts. You can adjust the initial value of the timer (from 40 above) to suit what you think is reasonable.
private int timer;
if (timer > 0)
{
timer--;
if (timer > 0) return;
/** next coding step will replace the following */
firstPicked.turn(-90);
secondPicked.turn(-90);
/** ********************************************* */
}else
{
secondPicked = c;
timer = 40;
}import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot, and MouseInfo)
/**
* Write a description of class MemoryGame here.
*
*
*/
public class MemoryGame extends World
{
Card[] cards = new Card[20];
private static Card firstPicked;
private static Card secondPicked;
private int timer;
public static int matchTries;
public static int matchCount;
public MemoryGame()
{
super(4, 5, 100);
// load array
// shuffle
// deal
for (int i=0; i<cards.length; i++) cards[i] = new Card("g"+(i/2), i/2);
java.util.Collections.shuffle(java.util.Arrays.asList(cards));
for (int i=0; i<cards.length; i++) addObject(cards[i], i/5, i%5);
}
public void act()
{
mouseClicking();
}
private void mouseClicking()
{
if(Greenfoot.mouseClicked(null)) // any click
{
Actor clickedOn = Greenfoot.getMouseInfo().getActor();
if (clickedOn == null || ! (clickedOn instanceof Card)) return;
Card c = (Card)clickedOn;
if (c.isShowing()) return;
if (firstPicked == null) // first pick
{
firstPicked = c;
c.flipCard();
}
else
{
secondPicked = c;
c.flipCard();
}
}
}
private int timer()
{
if (timer > 0)
{
timer--;
if (timer > 0) return;
firstPicked.turn(-90);
secondPicked.turn(-90);
}
else
{
secondPicked = c;
timer = 40;
}
}
}
Having issues.
JollyGreenGiant wrote...
Having issues.I was hoping you would end up with this:
Replace line 31 to 76 with this.
public void act()
{
if (timer > 0)
{
timer--;
if (timer > 0) return;
firstPicked.turn(-90);
secondPicked.turn(-90);
}
mouseClicking();
}
private void mouseClicking()
{
if(Greenfoot.mouseClicked(null)) // any click
{
Actor clickedOn = Greenfoot.getMouseInfo().getActor();
if (clickedOn == null || ! (clickedOn instanceof Card)) return;
Card c = (Card)clickedOn;
if (c.isShowing()) return;
if (firstPicked == null) // first pick
{
firstPicked = c;
c.flipCard();
}
else
{
secondPicked = c;
c.flipCard();
timer = 40;
}
}
}That works now thank you.
So all I need to do is to have the images match.
I should create a public void match in the world class.
private void match
Taking a closer look at my program, i think i would need to add vars in the mouse clicking method.
JollyGreenGiant wrote...
Taking a closer look at my program, i think i would need to add vars in the mouse clicking method.There are more replies on the next page.