pimp up random droplet movement vector init to create half-elliptic rather than square patterns - makes using piano less painful to the eyes
--- a/hedgewars/uVisualGearsList.pas Sat Oct 01 22:35:14 2016 +0200
+++ b/hedgewars/uVisualGearsList.pas Sat Oct 01 22:48:00 2016 +0200
@@ -230,8 +230,16 @@
end;
vgtDroplet:
begin
- dx:= 0.001 * (random(180) - 90);
- dy:= -0.001 * (random(160) + 40);
+ // old dx & dy calcs
+ // dx:= 0.001 * (random(180) - 90);
+ // dy:= -0.001 * (random(160) + 40);
+ // => min speed ~ 0.098, max speed ~ 0.218, speed range ~ 0.120
+ // => min angle(4096) ~ 129, max angle ~ 1919, angle range ~ 1790
+ dx:= 0.001 * (98 + random(121)); // speed
+ Frame:= 129 + random(1791); // angle
+ dy:= -dx * hwFloat2Float(AngleSin(Frame));
+ // divide by 2 to create an eliptic shape
+ dx:= dx * hwFloat2Float(AngleCos(Frame)) / 2;
FrameTicks:= 250 + random(1751);
Frame:= random(3)
end;