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How To Make A Car Move In Game Maker



Posted by3 years ago
How To Make A Car Move In Game Maker
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Physics Functions GameMaker: Studio has extensive, yet easy to use. You would use a force or impulse to get it to move around in the game world, or if it is not. Movement These functions all deal with movement and direction. In any game, movement and position are of paramount importance and so GameMaker: Studio has a complete selection of functions to deal with every situation.

Hey there!

This shouldn't need to be a long wall of text, it should be pretty easy to understand what I am talking about!

I have made a car, it moves forwards and turns and it's all good, except that the car pivots from the centre of the object to the middle of the front wheels. This is fine if you aren't a perfectionist, but the rear wheels step outwards when the car turns, making it look unrealistic (and also increases the speed in which the car should turn as the back wheels move when they shouldn't).

I currently track Speed, CarDirection and WheelDirection. I create a 'Target' (for my sake as well) which is Speed pixels in the direction of CarDirection + WheelDirection. I then update the car to that location on the next step and rotate it based on the angle from the BackWheels to the Target.
The problem is; when I am changing the cars direction it just pivots from the centre point of the object, which isn't where the back wheels is.

I would like to change the pivot point of the car using the back -> front wheels so the back wheels don't step out. Now, the pivot point on cars change. When you are turning left it is the back left and front left tyre as the pivot. I know the locations of all 4 tyres individually, I just need a way of getting the car to 'turn' using those pivot points.

Tracking left & right is easy, I would just like some advice on how to rotate correctly!

Thank you.

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7 comments
Active3 years ago

I'm new to programming on game-maker and programming in general. This is probably very easy but i'm unsure of how to go about things.

How To Make A Car In Little Alchemy

I am programming a simple top-down car game in which the car drives (forward) by it's self and is steered with the left and right mouse buttons. I attempted to get the car to drive on it's own with:

How To Make A Car Move In Game Maker

speed = 3

This, although making the car go forward, stopped the steering from working somehow and now the car rotates instead of actually turning around the corner.

How can i get the car to drive on it's own and still be able to turn the car?

AmericanSnakeAmericanSnake

1 Answer

You should not change image_angle, but direction instead. Image_angle is juste what you see, direction is the real physics direction.

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Like this, you turn the car, and then align the image on the car orientation.

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