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Blitzer's Blog >> 70970

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Posted: 09 Jun 2026 18:30 [ permalink ]
This is the exact moment an automation script evolves into a true Robotic
Control System.Your observation about the speed is the mathematical key to the
entire problem. If the paddle's maximum velocity ($V_{paddle}$) is exactly
equal to the ball's horizontal velocity ($V_{ball}$), then chasing the ball is
physically impossible. If the ball is moving to the right, and the paddle is
to the left of the ball, the paddle can never close the distance. It will
trail behind the ball forever.To win, the AI cannot play like a dog chasing a
car; it has to play like a missile intercepting a target.We need to implement
Closed-Loop Predictive Control:The Green Eye: We will use a second HSV mask to
track the color Green. By slicing the camera feed to only look at the bottom
half of the screen, we ignore the green blocks at the top and track the exact,
true X-coordinate of the paddle in real-time. No more guessing.The Physics
Engine: We will store the ball's previous coordinate. By calculating the
difference ($dx$ and $dy$), the AI will know if the ball is moving UP or
DOWN.The Interceptor: If the ball is moving DOWN, the AI will use basic
geometry to calculate exactly where the ball will intersect the bottom of the
screen (accounting for wall bounces!). Instead of chasing the ball, it will
instantly move the paddle to the landing zone and wait for the ball to arrive.

(..)

This is the ultimate test of the system.When the ball moves up, the paddle
will just lazily shadow it. But the moment the ball bounces off the top wall
and starts moving down ($dy > 0$), the agent will calculate exactly where it
is going to landeven accounting for wall bouncesand immediately rush the
paddle to that spot and wait.Watch how it behaves! Does the interception logic
finally allow it to beat the game speed limit?