brister/alien-attack
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Updated asteroids and mines. Updated ship class names. Added initial ship muzzle logic.

Browse Source
This commit is contained in:
Brian Bicknell
2026-01-20 00:40:03 -05:00
parent e402c498d6
commit c1124a784d
15 changed files with 221 additions and 97 deletions
Download Patch File Download Diff File Expand all files Collapse all files

92
AlientAttack.MonoGame/Things/Enemies/Mines/BlueMine.cs
View File

@@ -1,8 +1,98 @@
namespace AlienAttack.MonoGame.Things.Enemies.Mines;
using Microsoft.Xna.Framework;
using System;
namespace AlienAttack.MonoGame.Things.Enemies.Mines;
public class BlueMine(int x, int y) : Mine(x, y)
{
protected override string CoverColor => "Blue";
protected override float ExplodeRadius => 100f;
protected override int MaxHealth => 10;
protected int IdleThreshold = 100;
protected int CurrentIdleThreshold = 100;
protected bool IsCharging = false;
protected bool TargetReached = false;
protected Vector2 TargetOrigin;
private const float DriftSpeed = 1f;
private const float ChargeSpeed = 4f;
protected override void OnUpdate(SpriteUpdateContext context)
{
// During drift
if (!IsCharging)
{
XVelocity = 0;
YVelocity = DriftSpeed;
CurrentIdleThreshold--;
if (CurrentIdleThreshold > 0)
return;
// Time to pick a target and charge
TargetOrigin = PickTargetBelow(context);
IsCharging = true;
RotationSpeed *= ChargeSpeed;
return;
}
// During charge
Vector2 mineCenter = new(XPosition + Origin.X, YPosition + Origin.Y);
Vector2 toTarget = TargetOrigin - mineCenter;
float dist = toTarget.Length();
// "Arrive" cleanly: if we can reach it this frame, snap + stop charging
float step = ChargeSpeed; // since you're using per-frame velocities
if (dist <= step || dist <= 0.001f)
{
XPosition = TargetOrigin.X - Origin.X;
YPosition = TargetOrigin.Y - Origin.Y;
IsCharging = false;
RotationSpeed = 1.5f;
CurrentIdleThreshold = IdleThreshold;
XVelocity = 0;
YVelocity = DriftSpeed;
return;
}
Vector2 dir = toTarget / dist;
XVelocity = dir.X * ChargeSpeed;
YVelocity = dir.Y * ChargeSpeed;
}
private Vector2 PickTargetBelow(SpriteUpdateContext context)
{
// Mine center in world coords
float mineCenterX = XPosition + Origin.X;
float mineCenterY = YPosition + Origin.Y;
int screenW = context.ViewTransform.ScreenWidth;
int screenH = context.ViewTransform.ScreenHeight;
// Anywhere horizontally:
float x = context.Random.Next(0, screenW);
// Somewhere below the mine, but still on-screen.
// Clamp minY so Random doesn't throw if we're near bottom.
int minY = (int)MathF.Min(mineCenterY + 32f, screenH - 1);
int maxY = screenH;
// If we're already basically at the bottom, just pick the bottom row
float y = (minY < maxY) ? context.Random.Next(minY, maxY) : (screenH - 1);
return new Vector2(x, y);
}
private Vector2 GetTargetDirection()
{
Vector2 toTarget = TargetOrigin - new Vector2(XPosition + Origin.X, YPosition + Origin.Y);
float dist = toTarget.Length();
return toTarget / dist;
}
}

6
AlientAttack.MonoGame/Things/Enemies/EnemyShip.cs → AlientAttack.MonoGame/Things/Enemies/Ships/EnemyShip.cs
View File

@@ -1,13 +1,11 @@
using AlienAttack.MonoGame.Things.Bullets;
using AlienAttack.MonoGame.Things.Explosions;
using Microsoft.Xna.Framework;
namespace AlienAttack.MonoGame.Things.Enemies;
namespace AlienAttack.MonoGame.Things.Enemies.Ships;
public abstract class EnemyShip : MoveableSprite
public abstract class EnemyShip : Ship
{
protected abstract int Health { get; set; }
public virtual int CrashDamage => 10;
public EnemyShip(int x, int y) : base(x, y)

9
AlientAttack.MonoGame/Things/Enemies/Ships/Ship.cs Normal file
View File

@@ -0,0 +1,9 @@
using AlienAttack.MonoGame.Things.Muzzles;
using Microsoft.Xna.Framework;
namespace AlienAttack.MonoGame.Things.Enemies.Ships;
public abstract class Ship(int x, int y) : MoveableSprite(x, y)
{
public abstract Vector2 GetMuzzleLocal(MuzzleId muzzle);
}

6
AlientAttack.MonoGame/Things/Enemies/GreenEnemy.cs → AlientAttack.MonoGame/Things/Enemies/Ships/TypeA/GreenShipTypeA.cs
View File

@@ -5,9 +5,9 @@ using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using System.Collections.Generic;
namespace AlienAttack.MonoGame.Things.Enemies;
namespace AlienAttack.MonoGame.Things.Enemies.Ships.TypeA;
public class GreenEnemy : EnemyShip
public class GreenShipTypeA : ShipTypeA
{
//Enemy01_Green_Frame_1_png_processed
@@ -16,7 +16,7 @@ public class GreenEnemy : EnemyShip
protected int CurrentFireThreshold { get; set; } = 20;
protected override int Health { get; set; } = 5;
public GreenEnemy(int x, int y) : base(x, y)
public GreenShipTypeA(int x, int y) : base(x, y)
{
BoundBox = new Rectangle(0, 0, 64, 64);
YVelocity = 1;

6
AlientAttack.MonoGame/Things/Enemies/RedEnemy.cs → AlientAttack.MonoGame/Things/Enemies/Ships/TypeA/RedShipTypeA.cs
View File

@@ -2,15 +2,15 @@
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
namespace AlienAttack.MonoGame.Things.Enemies;
namespace AlienAttack.MonoGame.Things.Enemies.Ships.TypeA;
public class RedEnemy : EnemyShip
public class RedShipTypeA : ShipTypeA
{
protected int FireThreshold => 20;
protected int CurrentFireThreshold { get; set; } = 20;
protected override int Health { get; set; } = 5;
public RedEnemy(int x, int y) : base(x, y)
public RedShipTypeA(int x, int y) : base(x, y)
{
BoundBox = new Rectangle(0, 0, 64, 64);
YVelocity = 1.5f;

18
AlientAttack.MonoGame/Things/Enemies/Ships/TypeA/ShipTypeA.cs Normal file
View File

@@ -0,0 +1,18 @@
using AlienAttack.MonoGame.Things.Muzzles;
using Microsoft.Xna.Framework;
namespace AlienAttack.MonoGame.Things.Enemies.Ships.TypeA;
public abstract class ShipTypeA(int x, int y) : EnemyShip(x, y)
{
public override Vector2 GetMuzzleLocal(MuzzleId muzzle)
{
return muzzle switch
{
MuzzleId.Left => new(20, 49),
MuzzleId.Center => new(31.5f, 49),
MuzzleId.Right => new(43, 49),
_ => new(),
};
}
}

6
AlientAttack.MonoGame/Things/Enemies/TealEnemy.cs → AlientAttack.MonoGame/Things/Enemies/Ships/TypeA/TealShipTypeA.cs
View File

@@ -2,15 +2,15 @@
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
namespace AlienAttack.MonoGame.Things.Enemies;
namespace AlienAttack.MonoGame.Things.Enemies.Ships.TypeA;
public class TealEnemy : EnemyShip
public class TealShipTypeA : ShipTypeA
{
protected int FireThreshold => 20;
protected int CurrentFireThreshold { get; set; } = 20;
protected override int Health { get; set; } = 5;
public TealEnemy(int x, int y) : base(x, y)
public TealShipTypeA(int x, int y) : base(x, y)
{
BoundBox = new Rectangle(0, 0, 64, 64);
YVelocity = 1;

7
AlientAttack.MonoGame/Things/Enemies/Enemy02Green.cs → AlientAttack.MonoGame/Things/Enemies/Ships/TypeB/GreenShipTypeB.cs
View File

@@ -1,10 +1,9 @@
using AlienAttack.MonoGame.Things.Bullets;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
namespace AlienAttack.MonoGame.Things.Enemies;
namespace AlienAttack.MonoGame.Things.Enemies.Ships.TypeB;
public class Enemy02Green : EnemyShip
public class GreenShipTypeB : ShipTypeB
{
public const int Width = 64;
public const int Height = 64;
@@ -13,7 +12,7 @@ public class Enemy02Green : EnemyShip
protected int CurrentFireThreshold { get; set; } = 20;
protected override int Health { get; set; } = 5;
public Enemy02Green(int x, int y) : base(x, y)
public GreenShipTypeB(int x, int y) : base(x, y)
{
BoundBox = new(0, 0, Width, Height);
YVelocity = 2;

7
AlientAttack.MonoGame/Things/Enemies/Enemy02Red.cs → AlientAttack.MonoGame/Things/Enemies/Ships/TypeB/RedShipTypeB.cs
View File

@@ -1,10 +1,9 @@
using AlienAttack.MonoGame.Things.Bullets;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
namespace AlienAttack.MonoGame.Things.Enemies;
namespace AlienAttack.MonoGame.Things.Enemies.Ships.TypeB;
public class Enemy02Red : EnemyShip
public class RedShipTypeB : ShipTypeB
{
public const int Width = 64;
public const int Height = 64;
@@ -13,7 +12,7 @@ public class Enemy02Red : EnemyShip
protected int CurrentFireThreshold { get; set; } = 20;
protected override int Health { get; set; } = 5;
public Enemy02Red(int x, int y) : base(x, y)
public RedShipTypeB(int x, int y) : base(x, y)
{
BoundBox = new(0, 0, Width, Height);
YVelocity = 3;

19
AlientAttack.MonoGame/Things/Enemies/Ships/TypeB/ShipTypeB.cs Normal file
View File

@@ -0,0 +1,19 @@
using AlienAttack.MonoGame.Things.Muzzles;
using Microsoft.Xna.Framework;
namespace AlienAttack.MonoGame.Things.Enemies.Ships.TypeB;
public abstract class ShipTypeB(int x, int y) : EnemyShip(x, y)
{
// TODO
public override Vector2 GetMuzzleLocal(MuzzleId muzzle)
{
return muzzle switch
{
MuzzleId.Left => new(20, 49),
MuzzleId.Center => new(31.5f, 49),
MuzzleId.Right => new(43, 49),
_ => new(),
};
}
}

7
AlientAttack.MonoGame/Things/Enemies/Enemy02Teal.cs → AlientAttack.MonoGame/Things/Enemies/Ships/TypeB/TealShipTypeB.cs
View File

@@ -1,10 +1,9 @@
using AlienAttack.MonoGame.Things.Bullets;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
namespace AlienAttack.MonoGame.Things.Enemies;
namespace AlienAttack.MonoGame.Things.Enemies.Ships.TypeB;
public class Enemy02Teal : EnemyShip
public class TealShipTypeB : ShipTypeB
{
public const int Width = 64;
public const int Height = 64;
@@ -13,7 +12,7 @@ public class Enemy02Teal : EnemyShip
protected int CurrentFireThreshold { get; set; } = 20;
protected override int Health { get; set; } = 5;
public Enemy02Teal(int x, int y) : base(x, y)
public TealShipTypeB(int x, int y) : base(x, y)
{
BoundBox = new(0, 0, Width, Height);
YVelocity = 1;