Colision within a circule

[EFileTahi-A]

Am building a radar system for my game, so, how can i trigger some code if an image / picbox or something colides with the circule, not with the circules box but the circule itself! Or detecting if the mouse click coords (x,y) are within the circules area.

 

PS: Is there any game creators enthusiasts on this forum? I would love to know ppl who would like to share their dreams, projects, their ideias! Maybe we can team up!

 

My strong points are, graphics, sound and Imagination :D

Please add me on ur Messenger contact "efiletahi@hotmail.com"

 

 

- EFileTahi-A -

[Joe Mamma]

My strong points are, graphics, sound and Imagination :D

How's your Math???

 

Distance formula for point(x1, y1) from a given point(x, y) - ye olde pythagorus:

 

f(x1, y1) = √((x1-x)²+(y1-y)²)

Inside circle = f(x1, y1) < R

 

(x, y) is the center of the circle, R is the circle radius, (x1, y1) is a point in question.

 

Collision from inside happens with move of (x1, y1) → (x2, y2) where

( f(x1, y1) < R ) & ( f(x2, y2) ≥ R )

 

Collision from outside happens with move of (x1, y1) → (x2, y2) where

( f(x1, y1) > R ) & ( f(x2, y2) ≤ R )

[EFileTahi-A]

Math is my weakest point...

 

Could u draw me a picture in code of that?

 

Only know to use the Math.sqrt. How do I write "²" and "R" in c#?

Edited August 10, 2004 by EFileTahi-A

[EFileTahi-A]

AH! I did it! I create a radar system! YAY! :D