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60 lines
1.5 KiB
60 lines
1.5 KiB
double mouseActiveForCycles = 0;
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float carriedOverX = 0;
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float carriedOverY = 0;
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double mouse_accel (double cycles)
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{
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double accel = atan((cycles / 50) - 5);
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accel += 1.5707963267944; // we want the whole s curve, not just the bit that's usually above the x and y axes;
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accel = accel * 0.85;
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if (accel < 0.25) {
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accel = 0.25;
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}
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return accel;
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}
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void handle_mouse_movement( char x, char y)
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{
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if (x != 0 || y != 0) {
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mouseActiveForCycles++;
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double accel = (double) mouse_accel(mouseActiveForCycles);
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float moveX = 0;
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float moveY = 0;
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if (x > 0) {
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moveX = (x * accel) + carriedOverX;
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carriedOverX = moveX - floor(moveX);
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} else if (x < 0) {
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moveX = (x * accel) - carriedOverX;
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carriedOverX = ceil(moveX) - moveX;
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}
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if (y > 0) {
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moveY = (y * accel) + carriedOverY;
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carriedOverY = moveY - floor(moveY);
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} else if (y < 0) {
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moveY = (y * accel) - carriedOverY;
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carriedOverY = ceil(moveY) - moveY;
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}
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#ifdef DEBUG_SERIAL
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Serial.println();
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Serial.print("cycles: ");
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Serial.println(mouseActiveForCycles);
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Serial.print("Accel: ");
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Serial.print(accel);
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Serial.print(" moveX is ");
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Serial.print(moveX);
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Serial.print(" moveY is ");
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Serial.print(moveY);
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Serial.print(" carriedoverx is ");
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Serial.print(carriedOverX);
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Serial.print(" carriedOverY is ");
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Serial.println(carriedOverY);
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#endif
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Mouse.move(moveX, moveY, 0);
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} else {
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mouseActiveForCycles = 0;
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}
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}
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