95 lines
3.7 KiB
C#
95 lines
3.7 KiB
C#
using Microsoft.Xna.Framework;
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using Microsoft.Xna.Framework.Graphics;
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using Terraria;
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using Terraria.ID;
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using Terraria.ModLoader;
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using Terraria.GameContent;
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namespace ForgottenWawiTech.Content.Projectiles
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{
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// Short-lived beam projectile emitted rapidly by BeamAttackWand.
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// Simple straight projectile with minor dust and fade-out.
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public class BeamAttackWandBeam : ModProjectile
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{
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private const int FrameCount = 3;
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public override void SetStaticDefaults()
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{
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Main.projFrames[Type] = FrameCount; // 3 vertical frames
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}
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public override void SetDefaults()
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{
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Projectile.width = 28; // frame width
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Projectile.height = 28; // frame height
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Projectile.friendly = true;
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Projectile.penetrate = 1; // single hit per beam
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Projectile.timeLeft = 15; // very short duration
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Projectile.DamageType = DamageClass.Melee;
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Projectile.tileCollide = true;
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Projectile.light = 0.4f;
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Projectile.alpha = 40;
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}
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public override void AI()
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{
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// Frame animation: advance every 4 ticks for subtle flicker
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Projectile.frameCounter++;
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if (Projectile.frameCounter >= 4)
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{
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Projectile.frameCounter = 0;
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Projectile.frame = (Projectile.frame + 1) % FrameCount;
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}
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// Slight acceleration forward for a snappy feel
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Projectile.velocity *= 1.02f;
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// Simple fade: become more transparent near end
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if (Projectile.timeLeft < 6)
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Projectile.alpha += 25;
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// Spawn light dust
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if (Main.rand.NextBool(3))
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{
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int d = Dust.NewDust(Projectile.position, Projectile.width, Projectile.height, DustID.PurpleTorch,
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Projectile.velocity.X * 0.2f, Projectile.velocity.Y * 0.2f, 150, default, 0.9f);
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Main.dust[d].noGravity = true;
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}
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}
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public override bool OnTileCollide(Vector2 oldVelocity)
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{
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// So beams feel crisp: slight bounce spark then die
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Projectile.timeLeft = 5;
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Projectile.velocity *= 0.4f;
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return false; // don't kill immediately; fade
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}
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public override bool PreDraw(ref Color lightColor)
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{
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Texture2D tex = TextureAssets.Projectile[Type].Value;
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int frameHeight = tex.Height / FrameCount;
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Rectangle frameRect = new(0, frameHeight * Projectile.frame, tex.Width, frameHeight);
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Vector2 origin = new(tex.Width / 2f, frameHeight / 2f);
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float baseScale = 1f;
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float stretchX = 0.6f + Projectile.velocity.Length() / 30f; // elongate horizontally
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Color drawColor = Color.White * (1f - Projectile.alpha / 255f);
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// Slight additive trail effect: draw faint previous frame positions
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for (int i = 0; i < 3; i++)
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{
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Vector2 trailPos = Projectile.Center - Projectile.velocity * i * 0.8f;
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float trailAlpha = (0.4f - i * 0.12f) * (1f - Projectile.alpha / 255f);
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Main.EntitySpriteDraw(tex, trailPos - Main.screenPosition, frameRect,
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drawColor * trailAlpha, Projectile.rotation, origin,
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new Vector2(stretchX, baseScale), SpriteEffects.None);
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}
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// Main frame (bright)
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Main.EntitySpriteDraw(tex, Projectile.Center - Main.screenPosition, frameRect,
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drawColor, Projectile.rotation, origin,
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new Vector2(stretchX, baseScale), SpriteEffects.None);
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return false;
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}
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}
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}
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