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Topic: Constraining a value to a range (Read 754 times) |
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REAS
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Constraining a value to a range
« on: Oct 31st, 2002, 12:51am » |
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// Constrains a value to a specific range
int mx;
void loop() {
mx = constrain(mouseX, 20, 80);
line(mx, 20, mx, 80);
}
int constrain(int val, int minv, int maxv) {
return min(max(val, minv), maxv);
}
// The same example as above,
// but executes faster with a trinary operator
int mx;
void loop() {
mx = constrain(mouseX, 20, 80);
line(mx, 20, mx, 80);
}
int constrain(int val, int minv, int maxv) {
return (val > maxv) ? maxv : ((val < minv) ? minv : val);
}
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