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Added texture cache and sprite origins.

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This commit is contained in:
Brian Bicknell
2026-01-14 23:09:13 -05:00
parent fcb4f1cf05
commit 61d51f5188
36 changed files with 319 additions and 83 deletions
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3
AlientAttack.MonoGame/Things/Enemies/Enemy02Green.cs
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@@ -27,7 +27,8 @@ public class Enemy02Green : EnemyShip
Texture2D texture = args.Content.Load<Texture2D>(@$"Sprites\Enemy02Green_Frame_{frame}_png_processed");
//SpriteEffects spriteEffects = SpriteEffects.None;
args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), 1, spriteEffects, 1);
//args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), 1, spriteEffects, 1);
args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, Origin, 1, spriteEffects, 1);
base.Draw(args);
}

3
AlientAttack.MonoGame/Things/Enemies/Enemy02Red.cs
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@@ -27,7 +27,8 @@ public class Enemy02Red : EnemyShip
Texture2D texture = args.Content.Load<Texture2D>(@$"Sprites\Enemy02Red_Frame_{frame}_png_processed");
//SpriteEffects spriteEffects = SpriteEffects.None;
args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), 1, spriteEffects, 1);
//args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), 1, spriteEffects, 1);
args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, Origin, 1, spriteEffects, 1);
base.Draw(args);
}

3
AlientAttack.MonoGame/Things/Enemies/Enemy02Teal.cs
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@@ -27,7 +27,8 @@ public class Enemy02Teal : EnemyShip
Texture2D texture = args.Content.Load<Texture2D>(@$"Sprites\Enemy02_Teal_Frame_{frame}_png_processed");
//SpriteEffects spriteEffects = SpriteEffects.None;
args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), 1, spriteEffects, 1);
//args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), 1, spriteEffects, 1);
args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, Origin, 1, spriteEffects, 1);
base.Draw(args);
}

10
AlientAttack.MonoGame/Things/Enemies/EnemyShip.cs
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@@ -1,13 +1,19 @@
using AlienAttack.MonoGame.Things.Bullets;
using Microsoft.Xna.Framework;
namespace AlienAttack.MonoGame.Things.Enemies;
public abstract class EnemyShip(int x, int y) : MoveableSprite(x, y)
public abstract class EnemyShip : MoveableSprite
{
protected abstract int Health { get; set; }
public virtual int CrashDamage => 10;
public EnemyShip(int x, int y) : base(x, y)
{
Origin = new(32, 32);
}
public override sealed void Update(SpriteUpdateContext context)
{
if (Health <= 0)
@@ -22,7 +28,7 @@ public abstract class EnemyShip(int x, int y) : MoveableSprite(x, y)
TryMove(context);
if (YPosition > context.ViewTransform.ScreenHeight)
if (YPosition - Origin.Y > context.ViewTransform.ScreenHeight)
{
IsDead = true;
return;

10
AlientAttack.MonoGame/Things/Enemies/GreenEnemy.cs
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@@ -29,7 +29,8 @@ public class GreenEnemy : EnemyShip
Texture2D texture = args.Content.Load<Texture2D>(@$"Sprites\Enemy01_Green_Frame_1_png_processed");
SpriteEffects spriteEffects = SpriteEffects.None;
args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), 1, spriteEffects, 1);
//args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), 1, spriteEffects, 1);
args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, Origin, 1, spriteEffects, 1);
base.Draw(args);
}
@@ -56,8 +57,11 @@ public class GreenEnemy : EnemyShip
protected override void OnKilled(SpriteUpdateContext context)
{
int itemXPosition = (int)XPosition + 32 - Item.Width / 2;
int itemYPosition = (int)YPosition + 32 - Item.Height / 2;
//int itemXPosition = (int)XPosition + 32 - Item.Width / 2;
//int itemYPosition = (int)YPosition + 32 - Item.Height / 2;
int itemXPosition = (int)XPosition;
int itemYPosition = (int)YPosition;
switch (context.Random.Next(0, 5))
{

21
AlientAttack.MonoGame/Things/Enemies/Mines/Mine.cs
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@@ -1,5 +1,6 @@
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using System;
namespace AlienAttack.MonoGame.Things.Enemies.Mines;
@@ -9,12 +10,12 @@ public abstract class Mine : MoveableSprite
public const int Height = 64;
protected float Rotation = 0;
protected Vector2 Origin = new(30, 33);
protected abstract string CoverColor { get; }
public Mine(int x, int y) : base(x, y)
{
Origin = new(30, 33);
BoundBox = new(10, 14, 40, 38);
YVelocity = 1;
XVelocity = 0;
@@ -74,6 +75,18 @@ public abstract class Mine : MoveableSprite
CollisionBox = new Rectangle((int)XPosition + BoundBox.X - (int)Origin.X, (int)YPosition + BoundBox.Y - (int)Origin.Y, BoundBox.Width, BoundBox.Height);
float xDiff = (XPosition + Origin.X) - (context.Player.XPosition + context.Player.Origin.X);
float yDiff = (YPosition + Origin.Y) - (context.Player.YPosition + context.Player.Origin.Y);
double distance = Math.Sqrt(xDiff * xDiff + yDiff * yDiff);
if (distance < 100)
{
IsDead = true;
SpawnExplosion(context);
return;
}
if (YPosition - Origin.Y > context.ViewTransform.ScreenHeight)
{
IsDead = true;
@@ -87,4 +100,10 @@ public abstract class Mine : MoveableSprite
Rotation = 0;
}
}
private void SpawnExplosion(SpriteUpdateContext context)
{
context.SpawnSprite(new Explosion((int)XPosition, (int)YPosition, XVelocity, YVelocity));
context.AudioManager.PlayExplosion();
}
}

3
AlientAttack.MonoGame/Things/Enemies/RedEnemy.cs
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@@ -23,7 +23,8 @@ public class RedEnemy : EnemyShip
Texture2D texture = args.Content.Load<Texture2D>(@$"Sprites\Enemy01_Red_Frame_{frame}_png_processed");
//SpriteEffects spriteEffects = SpriteEffects.None;
args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), 1, spriteEffects, 1);
//args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), 1, spriteEffects, 1);
args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, Origin, 1, spriteEffects, 1);
base.Draw(args);
}

3
AlientAttack.MonoGame/Things/Enemies/TealEnemy.cs
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@@ -24,7 +24,8 @@ public class TealEnemy : EnemyShip
Texture2D texture = args.Content.Load<Texture2D>(@$"Sprites\Enemy01_Teal_Frame_{frame}_png_processed");
//SpriteEffects spriteEffects = SpriteEffects.None;
args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), 1, spriteEffects, 1);
//args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), 1, spriteEffects, 1);
args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, Origin, 1, spriteEffects, 1);
base.Draw(args);
}