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When a collision occurs, which object is collided with a player can be detected if an ID is set in the object in advance using the setUserData method, and the ID can be retrieved from there using the getUserData method. Depending on the collided object, a different action can be performed.
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You can pick and separately rotate multiple objects using you mouse.
You can also click a button to do something, such as move or rotate an object.
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In this program, when the Sign_up button is clicked,
an input username, an input password, and a click sequence of 3D objects are combined and stored in the database.
When the Log_in button is clicked, the combination of an input username, an input password, and a click sequence of 3D objects is checked against the database.
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If there is template code, it's not so hard to write code for counting a score, calculating the elapsed time and estimated time remaining, and displaying the score and "GAME OVER" when the time limit is reached. Combining these with java 3D's collision detection mechanism allows us to create interesting games.
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Whether a kart goes once around the track can be checked by tracking the order of collision events.
Whether character keys are typed in a certain order can be checked by tracking the order of KeyType events.
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