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jedi-bob

Mon Jan 19, 2004 10:30 am


Help with collision detection

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i cant get the oval collision detection working, i will post the code, if i could get some help that would be great. I copied the oval collision detection code into my program, but it get errors. I am using Turing 4.0.4c


var chars : array char of boolean
var A1,B1,A2,B2: int
var radius1,radius2:int
A1:=50
A2:=10
B1:=50
B2:=10
radius1:=10

loop
drawfilloval(A1,B1,A2,B2,7)
Input.KeyDown (chars)
if chars (KEY_RIGHT_ARROW) then
cls 
    A1:=A1+15 
    
elsif chars (KEY_LEFT_ARROW) then
cls 
    A1:=A1-15  
      
elsif chars (KEY_DOWN_ARROW) then
cls   
     B1:=B1-15
     
elsif chars (KEY_UP_ARROW) then
cls   
    B1:=B1+15  
    

end if
delay(100)
drawfilloval(200,200,50,50,yellow)
drawfilloval(200,200,10,10,black)


var distance := ((A2-A1)*(A2-A1) + (B2-B1)*(B2-B1))**0.5 
%you take the square of differences of X coordinates and add 
%a square of differences of Y coordinates then take a square 
%root of the sum 
%%%%%% 
%I did (x)*(x) instead of x**2 because exponents is a function 
%and it takes up more resourses then *, thus its faster 
%Also **0.5 is the same as sqrt() - learn your math guys 

if distance < radius1 + radius2 
%might be a good idea to save radious1+radious2 as const/var 
then 
collision = true 
end if 
end loop

Mod Edit: Moved it to the right forum, don't post in tutorial next time when you have a question.


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Thuged_Out_G

Mon Jan 19, 2004 3:20 pm



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you could use whatdotcolor for your collision detection....but if you dont do it correct(according to dodge), he'll get mad  :lol:


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jedi-bob

Mon Jan 19, 2004 3:28 pm



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i don't quite understand. Maybe you could copy my code above, correct it, and repost it. I am very new to turing, so don't think i am retarded.


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Tony

Mon Jan 19, 2004 5:17 pm



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you can't expect to paste some base code at the end of your program and expect things to work :roll:

see the collision = true  line? thats where you place the code that does whatever after collision occurts.

replace that with put "collision occured" to see if the code works


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jedi-bob

Tue Jan 20, 2004 9:53 am



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thanks, sorry for me being a dumbass