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36 lines
918 B
Plaintext
36 lines
918 B
Plaintext
/**
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* Linear Interpolation.
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*
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* Move the mouse across the screen and the symbol will follow.
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* Between drawing each frame of the animation, the ellipse moves
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* part of the distance (0.05) from its current position toward
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* the cursor using the lerp() function
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*
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* This is the same as the Easing under input only with lerp() instead.
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*/
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float x;
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float y;
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void setup() {
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size(640, 360);
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noStroke();
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}
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void draw() {
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background(51);
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// lerp() calculates a number between two numbers at a specific increment.
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// The amt parameter is the amount to interpolate between the two values
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// where 0.0 equal to the first point, 0.1 is very near the first point, 0.5
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// is half-way in between, etc.
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// Here we are moving 5% of the way to the mouse location each frame
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x = lerp(x,mouseX,0.05);
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y = lerp(y,mouseY,0.05);
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fill(255);
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stroke(255);
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ellipse(x, y, 66, 66);
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}
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