Processing 入門教程（十七） Map,Sin

float a = 0; void setup() { size(500, 300); background(0); colorMode(HSB, 100); noStroke(); } void draw() { float x = map(sin(a)*sin(a*0.8), -1, 1, 0, width); float y = map(sin(a*1.1+1.5

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