88 lines
3.6 KiB
C#
88 lines
3.6 KiB
C#
using ForgottenWawiTech.Content.Projectiles;
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using ForgottenWawiTech.Content.Players;
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using Microsoft.Xna.Framework;
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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 ForgottenWawiTech.Content.Rarities;
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namespace ForgottenWawiTech.Content.Items.Weapons.Magic
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{
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public class BeamAttackWand : ModItem
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{
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public override void SetDefaults()
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{
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Item.width = 32;
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Item.height = 32;
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Item.useStyle = ItemUseStyleID.Swing;
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Item.useAnimation = 40; // frames the swing lasts
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Item.useTime = 40; // one use per full animation
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Item.autoReuse = true;
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Item.UseSound = SoundID.Item1;
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Item.damage = 10;
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Item.knockBack = 4.5f;
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Item.DamageType = DamageClass.Magic; // treat beams as melee for synergy
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Item.rare = ModContent.RarityType<FWTDeveloperItem>();
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Item.value = Item.buyPrice(silver: 50);
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Item.shoot = ModContent.ProjectileType<BeamAttackWandBeam>();
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Item.shootSpeed = 12f; // base speed of beams
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Item.noMelee = false;
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Item.mana = 3;
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}
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// No recipe: obtained from Eye of Cthulhu treasure bag (see GlobalItem loot class)
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public override void HoldItem(Player player)
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{
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// Emit beams only while the item is mid-swing
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if (player.itemAnimation > 0 && player.HeldItem.type == Item.type && player.whoAmI == Main.myPlayer)
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{
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var modPlayer = player.GetModPlayer<BeamAttackWandPlayer>();
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modPlayer.BeamEmissionTimer--;
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if (modPlayer.BeamEmissionTimer <= 0)
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{
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// Kirby-style beam: a sweeping whip that leaves a multi-beam arc.
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// We'll spawn several beams at once in a tight angular spread around a smoothed central swing rotation.
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float targetRot = player.itemRotation + (player.direction == -1 ? MathHelper.Pi : 0f);
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if (modPlayer.LastBeamRot == 0f)
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modPlayer.LastBeamRot = targetRot;
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// Smooth aggressively so the arc persists briefly (lower factor = larger persistence)
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float smoothedRot = modPlayer.LastBeamRot + MathHelper.WrapAngle(targetRot - modPlayer.LastBeamRot) * 0.25f;
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modPlayer.LastBeamRot = smoothedRot;
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// Determine swing progress (0..1) to slightly widen arc near middle of swing
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float swingProgress = 1f - (player.itemAnimation / (float)player.itemAnimationMax);
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// Arc width scales up mid-swing then back down
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float baseArc = 0.30f; // radians total small arc
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float arcWidth = baseArc * (float)(1.0 - System.Math.Pow(2 * swingProgress - 1, 2)); // bell curve widen
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int beamsThisBurst = 4; // number of simultaneous beams
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int beamDamage = (int)(Item.damage * 0.45f); // slight reduction since multiple per tick
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for (int i = 0; i < beamsThisBurst; i++)
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{
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// Evenly distribute within arc centered on smoothedRot
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float lerp = beamsThisBurst == 1 ? 0f : i / (float)(beamsThisBurst - 1);
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float offset = MathHelper.Lerp(-arcWidth * 0.5f, arcWidth * 0.5f, lerp);
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float beamRot = smoothedRot + offset;
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Vector2 dir = beamRot.ToRotationVector2();
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if (dir.HasNaNs()) dir = new Vector2(player.direction, 0f);
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dir = dir.SafeNormalize(new Vector2(player.direction, 0f));
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// Stagger spawn distance to create a whip chain illusion (front beams slightly further)
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float distance = 14f + 3f * i;
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Vector2 spawnPos = player.Center + dir * distance + new Vector2(0f, -4f);
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Vector2 velocity = dir * Item.shootSpeed * (1f + i * 0.05f); // slight incremental speed
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Projectile.NewProjectile(player.GetSource_ItemUse(Item), spawnPos, velocity,
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Item.shoot, beamDamage, Item.knockBack, player.whoAmI);
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}
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// Emit burst every 3 ticks to keep DPS reasonable while visually dense
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modPlayer.BeamEmissionTimer = 3;
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}
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}
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}
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}
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}
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