# RMMV Prize Shuffle Picking

#### xabileug

##### Veteran
One of the fun ways to claim a prize is thru a shuffle.. So the prize is shuffled fast enough for the eyes to observe.. That's the challenge. I will share my method using events and an extra plugin.

One of the blocks i encountered was how to do the simultaneous moving of the pictures, and by how much should they move. I realized there is no need for a random amount of distance, but rather a random destination. So if we identify these destinations, it should ease things up. Also, when assigning picture ID, the prize should be the lowest so that it will be at the bottom, when the overlap visually happens, it could disappear or the player could lose track.

Extra plugin required / suggested : TMBtnPicture (link in my signature to the google drive)
This plugin will make it easier to activate the judgement part when a picture is clicked with a mouse.

Step 1: Assign the initial coordinates by random

Script call for assigning x coordinates of the 5 images:
JavaScript:
``````var pickx = [40,190,340,490,640];
var i = pickx.length, j, temp;
while (--i > 0){
j = Math.floor(Math.random() * (i+1));
temp = pickx[j];pickx[j] = pickx[i]; pickx[i] = temp;}
for (var i=0; i<5; i++){
var roll = pickx[i];
\$gameVariables.setValue(151+i, roll);
}``````
This code uses the fisher-yates shuffle. First, you have to get the coordinates of the image (with origin : upper left). Then you place them in the array pickx. In this example. I have 5 images each will be displayed initially at 40, 190, 340, 490, 640. It will be shuffled randomly, then assigned to variables 151, 152, 153, 154, 155.

In my design var ID 151 will hold the coordinate of the "Prize". This method using array removes those long if conditional branches!

Step 2: Show the images

script call for initially showing the image back:

JavaScript:
``````\$gameScreen.showPicture(11, 'pick_CE75', 0, \$gameVariables.value(151), 180, 100, 100, 255, 0);
\$gameScreen.showPicture(12, 'pick_CE76', 0, \$gameVariables.value(152), 180, 100, 100, 255, 0);
\$gameScreen.showPicture(13, 'pick_CE77', 0, \$gameVariables.value(153), 180, 100, 100, 255, 0);
\$gameScreen.showPicture(14, 'pick_CE78', 0, \$gameVariables.value(154), 180, 100, 100, 255, 0);
\$gameScreen.showPicture(15, 'pick_CE79', 0, \$gameVariables.value(155), 180, 100, 100, 255, 0);``````

as per instruction in the TMBtnPicture.js plugin, filename of images must have the _CEXX to connect them to the common event for the common event they should trigger. So I have 5 images which will trigger common event 75, 76, 77, 78, 79 separately. Also, the plugin requires the images not to be resized or rotated.

Step 3: Reveal the position of the prize, then hide it
I will be using the flip effect. The "+136" is the width of the image file.
Code:
``````//--- Flip Open ---
\$gameScreen.showPicture(6, 'prize', 0,  \$gameVariables.value(151)+136, 180, -100, 100, 0, 0);
//Play SE
\$gameScreen.movePicture(6, 0, \$gameVariables.value(151), 180, 100, 100, 255, 0, 60);
//Wait 10
\$gameScreen.movePicture(11, 0, \$gameVariables.value(151)+136, 180, -100, 100, 0, 0, 60);
//Wait 10
//Erase Picture #11

//--- Flip Close ---
//Play SE
\$gameScreen.showPicture(11, 'pick_CE75', 0, \$gameVariables.value(151)+136, 180, -100, 100, 0, 0);
\$gameScreen.movePicture(6, 0, \$gameVariables.value(151)+136, 180, -100, 100, 0, 0, 60);
//Wait 10
//Erase Picture #6
//Wait 60
\$gameScreen.movePicture(11, 0, \$gameVariables.value(151), 180, 100, 100, 255, 0, 60);``````

Step 4: Begin Swapping N times with random Speed every time!
Just use the same method in Step 1 and 2. But we insert the random wait part, so the new movePicture should be like this.
JavaScript:
``````var wran = (Math.floor(Math.random() *4)+1)*10; // random wait to choose 10,20,30,40,50 frames
\$gameScreen.movePicture(11, 0, \$gameVariables.value(151), 180, 100, 100, 255, 0, wran);
\$gameScreen.movePicture(12, 0, \$gameVariables.value(152), 180, 100, 100, 255, 0, wran);
\$gameScreen.movePicture(13, 0, \$gameVariables.value(153), 180, 100, 100, 255, 0, wran);
\$gameScreen.movePicture(14, 0, \$gameVariables.value(154), 180, 100, 100, 255, 0, wran);
\$gameScreen.movePicture(15, 0, \$gameVariables.value(155), 180, 100, 100, 255, 0, wran);``````

We also, need to add a counter. In the next image, we want to swap 6 times. I will use the jump to label (instead of a loop)

Step 5: Set the final Position
Just do Step 1 and 2 again. But add the common event control. I will use a variable:

Step 7: Setup the common events.
We have 5 images, so we need to setup 5 common events. CE75 will be showing the prize. It's setup should look like this
The other common events will all be the same. But we will include a reveal of the prize location.

don't forget! Reset The variable control set to 0, and turn on the switch OFF

##### Realist
this can come in handy though, this can bring idea's,
thank you for this tutorial.

EDIT:
if you do mode 1, you have it always right (if the price is the color )
mode 0 = better so its harder, but I got to say, it really nice done.

Last edited:

#### KotoYama

##### Veteran
This is great! Thanks!

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