public static Vector2 HorizontalMovementByForce(float acceleration, float constant,
float maxSpeed, float direction, Rigidbody2D rigidBody, float surfaceAngle, Vector2 surfaceNormal)
{
var velocity = (maxSpeed / 3.6f) * constant;
var force = ForceCalcByAcceleration(acceleration * constant, rigidBody.mass) +
FrictionForceCalc(0.4f, Physics2D.gravity.y, rigidBody.mass) +
SlopeForceCalc(surfaceAngle, surfaceNormal, direction, rigidBody.mass, Physics2D.gravity.y);
var forceApplied = new Vector2(force, 0) * direction;
if (!MathHelpers.Approximately(surfaceAngle, 0, float.Epsilon))
{
forceApplied = new Vector2(
force * MathHelpers.AbsCos(surfaceAngle),
force * (!SlopeInclinationRight(surfaceNormal)
? -MathHelpers.AbsSin(surfaceAngle)
: MathHelpers.AbsSin(surfaceAngle))) * direction;
}
if (rigidBody.velocity.magnitude > velocity)
{
rigidBody.AddRelativeForce(-forceApplied);
}
rigidBody.AddRelativeForce(forceApplied);
return(forceApplied);
}
public static Vector2 AddImpulseForce(float force, Vector3 aimDirection, Rigidbody2D rigidBody)
{
var angle = Vector2.Angle(aimDirection.normalized, Vector2.right);
var forceApplied =
new Vector2(
aimDirection.normalized.x < 0 ? -force * MathHelpers.AbsCos(angle) : force * MathHelpers.AbsCos(angle),
aimDirection.normalized.y < 0 ? -force * MathHelpers.AbsSin(angle) : force * MathHelpers.AbsSin(angle));
rigidBody.AddForce(forceApplied, ForceMode2D.Impulse);
return(forceApplied);
}
public static Vector2 AddImpulseForce(float force, float surfaceAngle, Vector2 surfaceNormal, Rigidbody2D rigidBody,
FacingDirection facingDirection)
{
force += SlopeForceCalc(surfaceAngle, surfaceNormal, facingDirection == FacingDirection.Right ? 1 : -1,
rigidBody.mass, Physics2D.gravity.y) * 0.385f;
var forceApplied = new Vector2(force * MathHelpers.AbsCos(surfaceAngle),
force * (!SlopeInclinationRight(surfaceNormal)
? -MathHelpers.AbsSin(surfaceAngle)
: MathHelpers.AbsSin(surfaceAngle)));
if (facingDirection == FacingDirection.Right)
{
rigidBody.AddForce(forceApplied, ForceMode2D.Impulse);
}
else
{
rigidBody.AddForce(-forceApplied, ForceMode2D.Impulse);
}
return(forceApplied);
}
public static void PreventSlideOnSlopes(float slopeAngle, Vector2 surfaceNormal, bool isIdle,
Rigidbody2D rigidbody2D)
{
var forceMagnitude = SlopeForceCalc(slopeAngle, rigidbody2D.mass, Physics2D.gravity.y);
var force = new Vector2(
SlopeInclinationRight(surfaceNormal)
? forceMagnitude * MathHelpers.AbsCos(slopeAngle)
: -forceMagnitude * MathHelpers.AbsCos(slopeAngle),
forceMagnitude * MathHelpers.AbsSin(slopeAngle));
if (MathHelpers.Approximately(rigidbody2D.velocity.magnitude, 0, 0.1f) && isIdle)
{
rigidbody2D.velocity = Vector2.zero;
}
if (rigidbody2D.velocity.y > 0)
{
return;
}
rigidbody2D.AddRelativeForce(force);
}
