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35 lines
803 B
Plaintext
35 lines
803 B
Plaintext
/**
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* Patterns.
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*
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* Move the cursor over the image to draw with a software tool
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* which responds to the speed of the mouse.
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*/
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void setup()
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{
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size(640, 360);
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background(102);
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smooth();
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}
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void draw()
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{
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// Call the variableEllipse() method and send it the
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// parameters for the current mouse position
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// and the previous mouse position
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variableEllipse(mouseX, mouseY, pmouseX, pmouseY);
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}
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// The simple method variableEllipse() was created specifically
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// for this program. It calculates the speed of the mouse
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// and draws a small ellipse if the mouse is moving slowly
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// and draws a large ellipse if the mouse is moving quickly
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void variableEllipse(int x, int y, int px, int py)
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{
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float speed = abs(x-px) + abs(y-py);
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stroke(speed);
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ellipse(x, y, speed, speed);
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}
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