public void ParseShipInputs(long inputs, int i, out float heading, out float thrust, out int fire)
{
var ship = _ships[i];
GGPORunner.LogGame($"parsing ship {i} inputs: {inputs}.");
if ((inputs & INPUT_ROTATE_RIGHT) != 0)
{
heading = (ship.heading - ROTATE_INCREMENT) % 360;
}
else if ((inputs & INPUT_ROTATE_LEFT) != 0)
{
heading = (ship.heading + ROTATE_INCREMENT + 360) % 360;
}
else
{
heading = ship.heading;
}
if ((inputs & INPUT_THRUST) != 0)
{
thrust = SHIP_THRUST;
}
else if ((inputs & INPUT_BREAK) != 0)
{
thrust = -SHIP_THRUST;
}
else
{
thrust = 0;
}
fire = (int)(inputs & INPUT_FIRE);
}
public void MoveShip(int index, float heading, float thrust, int fire)
{
var ship = _ships[index];
GGPORunner.LogGame($"calculation of new ship coordinates: (thrust:{thrust} heading:{heading}).");
ship.heading = heading;
if (ship.cooldown == 0)
{
if (fire != 0)
{
GGPORunner.LogGame("firing bullet.");
for (int i = 0; i < ship.bullets.Length; i++)
{
float dx = Mathf.Cos(DegToRad(ship.heading));
float dy = Mathf.Sin(DegToRad(ship.heading));
if (!ship.bullets[i].active)
{
ship.bullets[i].active = true;
ship.bullets[i].position.x = ship.position.x + (ship.radius * dx);
ship.bullets[i].position.y = ship.position.y + (ship.radius * dy);
ship.bullets[i].velocity.x = ship.velocity.x + (BULLET_SPEED * dx);
ship.bullets[i].velocity.y = ship.velocity.y + (BULLET_SPEED * dy);
ship.cooldown = BULLET_COOLDOWN;
break;
}
}
}
}
if (thrust != 0)
{
float dx = thrust * Mathf.Cos(DegToRad(heading));
float dy = thrust * Mathf.Sin(DegToRad(heading));
ship.velocity.x += dx;
ship.velocity.y += dy;
float mag = Mathf.Sqrt(ship.velocity.x * ship.velocity.x +
ship.velocity.y * ship.velocity.y);
if (mag > SHIP_MAX_THRUST)
{
ship.velocity.x = (ship.velocity.x * SHIP_MAX_THRUST) / mag;
ship.velocity.y = (ship.velocity.y * SHIP_MAX_THRUST) / mag;
}
}
GGPORunner.LogGame($"new ship velocity: (dx:{ship.velocity.x} dy:{ship.velocity.y}).");
ship.position.x += ship.velocity.x;
ship.position.y += ship.velocity.y;
GGPORunner.LogGame($"new ship position: (dx:{ship.position.x} dy:{ship.position.y}).");
if (ship.position.x - ship.radius < _bounds.xMin ||
ship.position.x + ship.radius > _bounds.xMax)
{
ship.velocity.x *= -1;
ship.position.x += (ship.velocity.x * 2);
}
if (ship.position.y - ship.radius < _bounds.yMin ||
ship.position.y + ship.radius > _bounds.yMax)
{
ship.velocity.y *= -1;
ship.position.y += (ship.velocity.y * 2);
}
for (int i = 0; i < ship.bullets.Length; i++)
{
if (ship.bullets[i].active)
{
ship.bullets[i].position.x += ship.bullets[i].velocity.x;
ship.bullets[i].position.y += ship.bullets[i].velocity.y;
if (ship.bullets[i].position.x <_bounds.xMin ||
ship.bullets[i].position.y <_bounds.yMin ||
ship.bullets[i].position.x> _bounds.xMax ||
ship.bullets[i].position.y> _bounds.yMax)
{
ship.bullets[i].active = false;
}
else
{
for (int j = 0; j < _ships.Length; j++)
{
var other = _ships[j];
if (Distance(ship.bullets[i].position, other.position) < other.radius)
{
ship.score++;
other.health -= BULLET_DAMAGE;
ship.bullets[i].active = false;
break;
}
}
}
}
}
}