Adjusted shot curve calculation

src/player/shot_setup/shot_setup.gd

@@ -36,7 +36,10 @@ const BIG_POWER_THRESHOLD := 0.7
 const WATER_DAMAGE := 10.0
 
 ## Angle of influence that shot curve has, in radians
-const CURVE_INFLUENCE := PI / 8
+const CURVE_INFLUENCE := PI / 16
+
+## Impulse offset multiplier due to curve, in meters
+const CURVE_FACTOR := 0.002
 
 ## Maximum absolute curve for the "nice shot" animation to play
 const NICE_THRESHOLD := 0.2
@@ -238,12 +241,12 @@ func finish_downswing() -> void:
 
 
 func get_shot_impulse(meter_pct: float) -> Vector3:
-	return (
-		-direction.global_basis.rotated(direction.global_basis.x, club.angle).z
-		* club.power
-		* base_power
-		* meter_pct
-	)
+	# Basic direction of the shot
+	var shot_vec := -direction.global_basis.rotated(direction.global_basis.x, club.angle).z
+	# Curve rotates shot direction around the Y-axis
+	var curved_shot := shot_vec.rotated(Vector3.UP, shot_curve * CURVE_INFLUENCE * shot_power)
+	# Various factors attenuate shot power
+	return curved_shot * club.power * base_power * meter_pct
 
 
 func take_shot() -> void:
@@ -262,13 +265,11 @@ func take_shot() -> void:
 	print_debug("Shot impulse: ", impulse, "; ", impulse.length(), " N*s")
 
 	# Curve the curve
-	var curve := direction.global_basis.x.normalized() * shot_curve
+	var curve := direction.global_basis.x.normalized() * shot_curve * absf(shot_curve)
 
 	# Position where the ball is hit (imparts spin)
-	var offset := curve * 0.001
+	var offset := -curve * CURVE_FACTOR
 	print_debug("Shot offset: ", offset, "; ", offset.length(), " m")
-	# Rotate impulse
-	impulse = impulse.rotated(Vector3.UP, -shot_curve * CURVE_INFLUENCE * shot_power)
 
 	if game_ball:
 		game_ball.iron_ball = club_type == Club.Type.IRON