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adds a thought bubble to the Sprite with the Events Block
given text, for the given time in seconds. An event is a happening which occurs due to some other things
shows a thought bubble with the given text. The bubble that happened before it. So, Events block actually control how
will continue to appear until another speech or thought block is the blocks in a script, will start to run, if a particular action is
activated, or the stop button is pressed. done. Events blocks control events and the starting of scripts.
They are yellow in color.
and shows and hides the Sprite on the stage.
block activates the script when the green flag or
changes the Sprite according to the selected effect. The seven
effects are: color, fisheye, whirl, pixelate, mosaic, brightness and ghost. Go button is clicked.
block activates the script when the chosen key is pressed. You can
choose from the given keys or you can choose the option any.
block activates the script when you click the sprite.
Control Block
They have looping blocks which are used when the same blocks have to be repeated
for a number of times. The most commonly used control blocks are:
block pauses the running of the script for the number of seconds given
block will reset any graphical effects on the sprite. They will be reset
to their default value zero. in the block. You can use this block when two move or speak blocks are coming
one after the other.
Sound Block The repeat block repeats a set of blocks for a given number of
Sound blocks are in pink color. They control sound functions. We can add music to times. This block is also used to draw shapes where we have to
our Scratch project by using Sound blocks. You can even record your voice and save give the same blocks again and again for a number of times.
it. You can play it with a sprite. The forever block keeps on repeating a set of blocks till the stop
block plays a sound without pausing the button is clicked. This block is similar to repeat block and expands
script. The sound options are “Meow” or recorded automatically to accommodate the blocks you snap inside it.
sound.
SETTING THE SPRITE POSITION
block plays the sound by pausing the
script until the sound has finished playing. The sound options are “Meow” or The stage is divided into different values of x and y. Each dot on the stage is made
any recorded sounds. up of both x and y values. The value of x gives the horizontal (left to right) location
of the Sprite. The value of y gives the vertical (top to bottom) location of the Sprite.
To stop all sounds being played on all Sprites, use block.
The centre of the stage has x and y values as 0.
block clears all existing sound effects.
Coding Corner 65

