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Updated asteriods, mines, and explosions.

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This commit is contained in:
Brian Bicknell
2026-01-18 22:11:20 -05:00
parent 8e0a68efdf
commit e402c498d6
21 changed files with 338 additions and 102 deletions
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64
AlientAttack.MonoGame/Things/Enemies/Mines/Mine.cs
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@@ -1,4 +1,6 @@
using Microsoft.Xna.Framework;
using AlienAttack.MonoGame.Things.Bullets;
using AlienAttack.MonoGame.Things.Explosions;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using System;
@@ -9,7 +11,13 @@ public abstract class Mine : MoveableSprite
public const int Width = 65;
public const int Height = 64;
protected abstract int MaxHealth { get; }
protected abstract string CoverColor { get; }
protected abstract float ExplodeRadius { get; }
protected int Health { get; set; }
protected float RotationSpeed { get; set; } = 1.5f;
protected double DistanceToPlayer { get; set; } = double.MaxValue;
public Mine(int x, int y) : base(x, y)
{
@@ -17,38 +25,45 @@ public abstract class Mine : MoveableSprite
BoundBox = new(10, 14, 40, 38);
YVelocity = 1;
XVelocity = 0;
Health = MaxHealth;
}
public override void Draw(SpriteDrawArgs args)
{
DrawRotor(args);
DrawCover(args);
base.Draw(args);
}
private void DrawRotor(SpriteDrawArgs args)
{
Texture2D texture = args.Content.Load<Texture2D>("Sprites/Rotor");
args.SpriteBatch.Draw(texture, Position, null, DrawColor, Rotation, Origin, 1f, SpriteEffects.None, 1);
args.SpriteBatch.Draw(texture, Position, null, DrawColor, Rotation, Origin, Scale, SpriteEffects.None, 1);
}
private void DrawCover(SpriteDrawArgs args)
{
Texture2D texture = args.Content.Load<Texture2D>($"Sprites/Cover_{CoverColor}");
args.SpriteBatch.Draw(texture, Position, null, DrawColor, Rotation, Origin, 1f, SpriteEffects.None, 1);
args.SpriteBatch.Draw(texture, Position, null, DrawColor, Rotation, Origin, Scale, SpriteEffects.None, 1);
}
public override sealed void Update(SpriteUpdateContext context)
{
base.Update(context);
CollisionBox = new Rectangle((int)XPosition + BoundBox.X - (int)Origin.X, (int)YPosition + BoundBox.Y - (int)Origin.Y, BoundBox.Width, BoundBox.Height);
if (Health <= 0)
{
IsDead = true;
SpawnExplosion(context);
//OnKilled(context);
return;
}
float xDiff = (XPosition + Origin.X) - (context.Player.XPosition + context.Player.Origin.X);
float yDiff = (YPosition + Origin.Y) - (context.Player.YPosition + context.Player.Origin.Y);
UpdateDistanceToPlayer(context);
OnUpdate(context);
double distance = Math.Sqrt(xDiff * xDiff + yDiff * yDiff);
if (distance < 100)
if (DistanceToPlayer <= ExplodeRadius)
{
IsDead = true;
SpawnExplosion(context);
@@ -61,17 +76,38 @@ public abstract class Mine : MoveableSprite
return;
}
Rotation += 0.01f;
Rotation = MathHelper.WrapAngle(Rotation + RotationSpeed * context.DeltaTime);
}
if (Rotation > 360f)
private void UpdateDistanceToPlayer(SpriteUpdateContext context)
{
float xDiff = (XPosition + Origin.X) - (context.Player.XPosition + context.Player.Origin.X);
float yDiff = (YPosition + Origin.Y) - (context.Player.YPosition + context.Player.Origin.Y);
DistanceToPlayer = Math.Sqrt(xDiff * xDiff + yDiff * yDiff);
}
protected virtual void OnUpdate(SpriteUpdateContext context)
{
}
public override void OnCollision(SpriteCollisionContext context)
{
if (context.Sprite is Bullet bullet && bullet.Owner is Player)
{
Rotation = 0;
Health -= bullet.Damage;
}
if (context.Sprite is Player)
{
Health = 0;
}
}
private void SpawnExplosion(SpriteUpdateContext context)
protected void SpawnExplosion(SpriteUpdateContext context)
{
context.SpawnSprite(new Explosion((int)XPosition, (int)YPosition, XVelocity, YVelocity));
context.SpawnSprite(new MineExplosion((int)XPosition, (int)YPosition, XVelocity, YVelocity));
context.AudioManager.PlayExplosion();
}
}