CODEWITHSUNDEEP
javascript
user3582285
user3582285

Reputation: 1

trying to get hit detection to work for pong. left paddle won't work

I'm trying to make a pong game in javascript for a final project, but the hit detection doesn't work for my left paddles. the right paddle will work but the left doesn't. If i tweak the greater than less than values the ball has a seizure.

I really don't know how to fix this. please help!

//hit detection right paddle
if((ballinfo.x + ballinfo.size) <=(boxtwo.x)){
                if (ballinfo.y > boxtwo.y){
                    if((ballinfo.y + ballinfo.size) <= (boxtwo.y + boxtwo.height)){
                        ballinfo.velocity.x *= -1;
                        console.log("collision");
                    }
                }
            }

//hit detection left paddle
if((ballinfo.x + ballinfo.size) <=(box.x)){
                if (ballinfo.y < box.y){
                    if((ballinfo.y + ballinfo.size) <= (box.y + box.height)){
                        ballinfo.velocity.x *= -1;
                        console.log("collisionleft");
                    }
                }
            }

            ballinfo.x += ballinfo.velocity.x;
            ballinfo.y += ballinfo.velocity.y;

Upvotes: 0

Views: 63

Answers (1)

Jim Condren
Jim Condren

Reputation: 11

It looks like the wrong comparison operator was inverted between your right and left. Try changing the first 2 compare operators in the left section to see if that helps.

if((ballinfo.x + ballinfo.size) >=(box.x)){
            if (ballinfo.y > box.y){

I'm assuming the checking on y is for the paddle, so the code there should be identical between the left and right paddles (replacing the object name, of course).

Upvotes: 1

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