public Entity create_entity(params Component[] components)
{
if (top_state != null)
{
return(top_state.create_entity(components));
}
return(null);
}
private void player_powerup(Entity a, Entity b, dynamic data)
{
var powerup = (a.get_component <Sprite>().texture.Name == "powerup") ? a : b;
var player = (powerup == a) ? b : a;
var si = player.get_component <Ship_Info>();
int i = -1;
for (int j = 0; j < si.max_powerups_inv; j++)
{
if (si.powerup_inv[j] == null)
{
i = j;
break;
}
}
if (i >= 0)
{
si.powerup_inv[i] = powerup.get_component <Powerup>().impl;
if (si.powerup_inv[si.powerup_inv_index] == null)
{
si.powerup_inv_index = i;
}
state.create_entity(new Component[] {
new TTL {
max_time = 0.05f
},
new Particle_Emitter {
emit_fn = () => {
var theta1 = (2.0f / 5.0f) * 3.1415f * (float)rand.Next(0, 6);
var theta2 = 2.0f * 3.1415f * (float)rand.NextDouble();
var radius = 10.0f * (float)rand.NextDouble();
var speed = 170.0f * (float)(0.5f + rand.NextDouble());
var color = Color.White;
var pos = powerup.get_component <Position>();
var vel = powerup.get_component <Velocity>();
if ((float)rand.NextDouble() > 0.6f)
{
color = new Color(1.0f, 0.6f, 0.8f);
}
return(new Component [] {
new Mass {
drag_coeff = 5.9f
},
new Position {
x = pos.x + (float)Math.Cos(theta1) * radius,
y = pos.y + (float)Math.Sin(theta1) * radius
},
new Velocity {
x = vel.x * 0.5f + (float)Math.Cos(theta2) * speed,
y = vel.y * 0.5f + (float)Math.Sin(theta2) * speed
},
new Sprite {
blend_mode = Sprite.BM_ADD,
color = color,
layer_depth = 0.3f,
scale = 0.4f + (float)rand.NextDouble() * 0.7f,
texture = Fab5_Game.inst().get_content <Texture2D>("particle2")
},
new TTL {
alpha_fn = (x, max) => (1.0f - ((x * x * x) / (max * max * max))),
max_time = 0.55f + (float)Math.Pow((rand.NextDouble() * 1.2f), 2.0f)
}
});
},
interval = 0.04f,
num_particles_per_emit = 18 + rand.Next(0, 10)
}
});
powerup.destroy();
}
}