[Canvas] Dynamic Lights and Shadows: Add static Lights

Hello,

i have a little problem with the following plugin. I use this plugin for dynamic lights and shadows:

viewtopic.php?t=64239&start=0

...and here is the *.capx file:

https://www.dropbox.com/s/8szoexmh8j9rm ... adows.capx

The plugin actually works quite well, but I would add static light sources. In the demo you can see that "target" (e.q. flashlight) always has the position of the cursor. How can I add static light (e.g. lamp) now? I hope you understand and can help me. Thanks a lot!

Ok, nobody can help me?!

I have added two screens of my event sheet, because i don't want to upload the original *.capx file (more than ~60 mb)

So, this code works on start of layout: https://www.dropbox.com/s/01etrayx5n4ir ... mapper.jpg

...and this on every thick: https://www.dropbox.com/s/nar7ain7bcljv ... -paths.jpg

I think the "canvas plugin" has a poor performance on larger maps. Is there another way to represent shadows? Can I optimize the code so that the light points are generated only when I really need it or can I scale down the canvas object (currently a size of 2000 pixel) and pin it? I hope someone can help me! <img src="{SMILIES_PATH}/icon_e_smile.gif" alt=":)" title="Smile">

No one has an idea?

I am considering the canvas plugin to remove, but how can I prevent the light shines through the walls?

Shadows... dynamic light... well, it's a hard subject.

Canvas plugin did have a high performance influence last time I used it (for the exact same reason as you did). I don't know of any workaround that could help with this right now. I did some research and tries with the illuminated.js script, but didn't manage to make a plugin out of it.

But, in your first post, you asked for static lights like a lamp. This particular case is quite simple and doesn't require canvas at all.

Here is an example on how to do a simple static light.

Edit : highlight on the method :

• a layer "lights", black, not transparent, on top of the game.
• add a multiply effect to this layer
• add white sprites (or colored ones if you want red, green and other lights) in this layer

The multiply will make everything black in your game, except what is lighten.

Oh, the illuminated.js is exactly what I want! But how I can make this in C2? In need this absolutely for my game.

greweb.me/illuminated.js

That with the colored lights is great. Thanks for this tip.

Ok, I was searching for "shadow caster" and I have found this:

scirra.com/forum/viewtopic.php?t=88188&start=0

I have download and modify the *.capx file - here is it:

dropbox.com/s/bjnf805uinbrpk3/Shadow_Caster_Modified.capx

That look already fine, but I have some issues! How I can change the color of lights and how I can make a background (e.g. a texture) visible?! Thank you for help!

Wossi

For changing the color, just look at the event 2 action. The color is a local variable on each Light object, you can change it there.

As for the background, I can't help you, I don't know.

Just so you know, on a classic office computer (no fancy graphic card, 2GB RAM), this project got my firefox and chrome to crash. Canvas takes a lot of resources on top of C2...

I know the canvas needs a lot of resources, but I find no other solution for dynamic shadow effects. If you know any other way, then you can betray me quiet. I'm working on a top-down survival game, and since I need these effects. If the game is not really good, then I throw my money for C2.

Can you tell me the name of the variable, I can not find them?

In the last project you shared, the variable is an instance variable on the objects "light", and its name is ... "color".

As for other solutions, no I don't. I ran into the same exact problem (top down, stealth game), and used another light system, a lot less attractive (no light around corners possible at all, light was going only on X and Y axis...). It won't be your solution.

Ah, thank You I overlooked the variable.

I work with very large maps, so the canvas must also have this size (currently I am working with 1920x1080) ... I try somehow to make the canvas smaller, so as to save power. I hope I succeed sometime