Canvas Drag & Drop Objects Tutorial | HTML5 Canvas JavaScript Tutorial [#10]

Canvas Drag & Drop Tutorial for cavas objects, like rects, rectangles and circles. Learn how to implement JavaScript and Canvas Drag and Drop functions and functionality without any library or plugin. Full JavaScript HTML 5 Canvas Tutorial series. Use JavaScript Mouse Down, Mouse Up and Mouse Move events to interact with the objects in canvas, and change the x- and y- coordinates. Mobile touch included as well.
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[@cleisonsousa950]

Thanks for bringing this tutorial! congratulations it's great 🙃✌️

[@armer2001]

Life hack. On line 4 and 5, you don't have to do minus anything. Just set canvas style to display: block.

[@alejandro-qm6vl]

if you just want the code then it's alright, but if you actually wanted to learn anything then this is not the best video for you. you were getting the explanations alright at some point, then down the line, it looked like we were just watching you code over your shoulder and mumbling the explanations. you were typing too fast, ill look for a better tutorial. I still don't understand how some of the mouse functions worked. but hey it just works I guess.

[@troyhackney148]

YEs.

[@framora7598]

Thank you for making this great video! Super helpful 👍

[@dhruvrashiya8612]

I have a question that is eating me away...
In mousemove function you defined a new variable let current_shape =shapes[current_shape_index] and then you made chages to that new variable current_shape.x and current_shape.y .
But we can see that the chages getting reflected in the main variable shapes , why is this happening?

[@one_bored_dude1798]

a bit late but just found something related to your question in an stackoverflow post so thought I might share :D
"My understanding is that this is actually very simple:
- Javascript is always pass by value, but when a variable refers to an object (including arrays), the "value" is a reference to the object.
- Changing the value of a variable never changes the underlying primitive or object, it just points the variable to a new primitive or object.
- However, changing a property of an object referenced by a variable does change the underlying object."
Here he passed a reference to an shape object and just adjusted properties of that object, therefore the original object was affected aswell.
If he created a new shape with the basic properties of the object instead, changing that shape would not affect the original object anymore.

[@princeashmir9430]

which suggestion extension of vs code are you using in this tutorial ??

[@ilyaserebryannikov858]

i want that gist

[@ianschwartz08]

shape will not show up.

[@sam-h5r6j]

This was a great tutorial. Thanks! How would you tackle more complex shapes like irregular triangles etc.?

[@laurapriewasser5703]

Thank you for this great video ☺️ I have a question concerning the red square. What do I have to do to have a squared picture instead of the red area? And the image should‘t be dropped everywhere, just somewhere in a green area?

[@petarvitanov2297]

Hello, would this work well if you have multiple objects? And what if objects are images ?

[@NiketBahety]

Is there a more optimal approach instead of drawing all shapes again everytime the mouse moves ?

[@marienoel1209]

amazing tutorial!!! Thanks a lot for all the explanations 💗😍🤩

[@BananaCoding]

Thank you :)!

[@real31iger]

you can holt "alt" i dont know in english and push the down or up arrow to move a full line or all targets

[@DaYroXy]

Hello, make a tutorial on how can we implement something like a circle in the center of the screen and a line following the cursor when its close for example
if cursor is 50px close to the middle canvas then connect cursor and canvas with a line when the cursor is 50px further then make the line dissaper

[@satrughnasethisattuk]

Could you please mention what extension you have installed for showing the suggestions? I loved it.

[@kreonovo]

pretty sure it is copilot

[@usaidkhan742]

could you provide its source code? thanks

[@genddabowen9171]

Pls make a chess game using a canvas

[@asfahim6882]

thank a lot, it helped me to get idea wich implement in my project

[@benyuanhu267]

Thank you, I love your tutorial about canvas! Do you know how to draw a line with an arrow between these two objects on the canvas ? You know like a data flow, there is an endpoint on each object, and people can draw a line out of this endpoint and then point to another endpoint on the other objects

[@gouthamharshith2399]

Do we have a GitHub link for this video?

[@Xlorate]

Good work, my shapes failed to move after subtracting offset_x and offset_y, I assume js did not recognize them as numbers?

[@migliorelli]

same

[@robertobaldizon8206]

Thanks. Very useful.

[@real31iger]

strg and + for font zoom, strg and - for font zoom :)

[@mdmahfujarrahman6453]

❤

[@필젠]

Thank you for your video. You gave me what i was looking for.

[@trikztr]

thank you!

[@umutdonmez2707]

Thank you for this video.

[@franmoreno5984]

Nice explanation, thanks!

[@kqnesky_7516]

Masterclass, thank you for all !

[@loukiidris9883]

thanks bro

[@NOTHING-en2ue]

very great tutorial ❤

[@rajkumar-gh4tq]

source code please

[@jpgalinat7412]

Hello . Which EDITOR do you use ?

[@BananaCoding]

Hi, Visual Studio Code

[@jpgalinat7412]

THANK YOU

[@Masirraj]

Awesome tutorial keep working 🤙🤙

[@BananaCoding]

Thanks mate!

[@aakashinfo949]

Veri nice sir thanks

[@BananaCoding]

Thank you!

[@ebrensi]

Very good 👍

[@BananaCoding]

Thank you!

[@tikka6554]

what is your laptop?

[@BananaCoding]

It’s a windows computer compiled by myself

[@tikka6554]

@@BananaCoding what it's specs?

[@hansjerbydelana1624]

yoww

[@BananaCoding]

Hi mate!

[@hansjerbydelana1624]

@@BananaCoding I have question for you broo, Its normal to breakdown while you dont know how to fix your bug.? then can you make a video how to put map tile and sound effects when you make a game (sorry to my english )