Small Ray Tracing (or RayCasting)

[darkfrei]

Hi all!

I've made small tool: it checks where is the first nearest point on the line (https://love2d.org/wiki/love.graphics.line) from given ray source.

[darkfrei]

My implementation ray tracing as a lib;

Please help me to fix it, I'm bad with objects. If possible, without metatables, I cannot understand them.

[noahnadai]

Where were you three months ago when my game needed you? Good work!

[darkfrei]

Where were you three months ago when my game needed you? Good work!

I need that tool for my project too, that's why I wrote that.

Where are you need it?

[noahnadai]

Where were you three months ago when my game needed you? Good work!

I need that tool for my project too, that's why I wrote that.

Where are you need it?

This game I recently finished. Had to manually assign co-ordinates for each laser and it's respective collision point.
https://mwasanje.itch.io/the-squarehouse

[darkfrei]

Tested and fixed version from https://love2d.org/forums/viewtopic.php ... 92#p237207

[lucked]

Well done!

[togFox]

Trying to adapt rays.lua into my own project. The example here has two lines - line1 and line2 as two distinct lines. I have about 50 lines (all about 50 pixels short) so would like to adapt to call a table of lines ... I guess.

I have a line defined, not surprisingly, as x1,y1,x2,y2. So, I guess I might have:

line[1] = x1,y1,x2,y2
line[2] = x1,y1,x2,y2 -- different values for x1,y1,x2,y2
line[3] = x1,y1,x2,y2 -- different values for x1,y1,x2,y2
line[4] = x1,y1,x2,y2 -- different values for x1,y1,x2,y2

They are not continuous like in the example in this thread. They all have exactly two xy pairs - but - I have an undefined number of lines. How to adjust rays.lua?

[darkfrei]

Code: Select all

line[1] = x1,y1,x2,y2

Maybe table required?

Code: Select all

line[1] = {x1,y1,x2,y2}