Global

Members

balls

A global variable that stores all of the balls being rendered.
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controlPanel

Handler for the control panel DOM element.
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deleteBallButton

Handler for the delete ball button DOM element.
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dt

A global variable that stores the time step for the physics stimulation.
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gravityX

The x component of the gravity force.
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gravityXDisplay

The handler for the x component of the gravity force display DOM element.
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gravityXSlider

The handler for the x component of the gravity force slider.
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gravityY

The y component of the gravity force.
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gravityYDisplay

The handler for the y component of the gravity force display DOM element.
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gravityYSlider

The handler for the y component of the gravity force slider.
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hideGravityVectorButton

Handler for the hide gravity vector button.
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maxNumBalls

The maximum number of balls to be rendered on the canvas.
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maxNumBallsDisplay

Handler for the maxNumBalls DOM element which acts as a display.
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maxNumBallsSlider

Handler for the maxNumBalls Slider.
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newBallButton

Handler for the new ball button DOM element.
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numBallsDisplay

The handler for the number of balls display DOM element.
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pseudoBallWallCOR

The current value of the pseudo ball-wall coefficient of restitution (COR).
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pseudoBallWallCORDisplay

Handler for the pseudo ball-wall coefficient of restitution (COR) display DOM element.
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pseudoBallWallCORSlider

Handler for the pseudo ball-wall coefficient of restitution (COR) slider.
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resetButton

Handler for the reset button DOM element.
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showGravityVector

The Show gravity vector flag.
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showGravityVectorButton

Handler for the show gravity vector button.
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updatesPerFrame

A global variable that stores the number of physics updates per frame.
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Methods

controlPanelHide()

Hides the control panel by making the DOM element hidden.
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controlPanelSetup()

The setup function for the control panel.
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controlPanelShow()

Shows the control panel by making the DOM element visible.
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deleteBall()

The delete ball call back. This function deletes a ball from the balls array. The function does not remove any balls if there is only one left. Once this is complete the showNumBalls() functions is called.
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deleteBallButtonSetup()

The setup function for the delete ball button.
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draw()

p5.js draw function, used to draw all balls and apply physics for each frame
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drawGravity()

Draw the gravity vector that is currently being applied to all the balls.
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gravitySliderSetup()

The setup function for the x and y gravity sliders
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gravityVectorButtonsSetup()

Setup the show and hide gravity buttons
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hideGravity()

The call back for the hid gravity button
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maxNumBallsSliderSetup()

The max number of balls slider setup function.
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mousePressed()

When the mouse is pressed a new ball is added to the balls array.
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newBall()

The new ball button call back. This function does not add a new ball to the balls array if the array is larger than the maxNumBalls variable. Once this is completed the showNumBalls() function is called.
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newBallButtonSetup()

The setup function for the new ball button
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numBallsDisplaySetup()

The function to setup the DOM element showing the current number of balls being rendered on the canvas. Once the DOM element has been set up the showNumBalls() function is called.
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pseudoBallWallCORSliderSetup()

The pseudo ball-wall coefficient of restitution (COR) slider setup function.
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randBall() → {Ball}

Generates a ball with a random velocity and a random radius positions at the current location of the mouse.
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Returns:
Ball Object with random velocity at the pointer location.
Type
Ball

reset()

The call back for the reset button. This empties the balls list and adds a random ball. The time step (dt) is also reset.
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resetButtonSetup()

The setup function for the reset button.
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setup()

p5.js setup function, used to create a canvas and instantiate the first Ball object in the balls array
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showGravity()

The call back for the show gravity button
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showNumBalls()

Updates the DOM element showing the current number of balls being rendered on the canvas.
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uiPoll()

A function that polls all of the ui elements that require polling every frame.
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uiSetup()

A function to setup all of the UI elements in the control panel.
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Documentation generated by JSDoc 4.0.2 on Sun Feb 04 2024 18:35:38 GMT+0000 (Greenwich Mean Time)