package com.example.psychedelicmines.client; import com.example.psychedelicmines.effect.ModEffects; import net.fabricmc.fabric.api.client.rendering.v1.hud.HudElementDrawer; import net.minecraft.client.MinecraftClient; import net.minecraft.client.gui.DrawContext; import net.minecraft.client.render.RenderTickCounter; import net.minecraft.entity.player.PlayerEntity; import java.util.Random; public class HallucinationOverlay implements HudElementDrawer { private final Random random = new Random(); @Override public void draw(DrawContext context, RenderTickCounter tickCounter) { MinecraftClient client = MinecraftClient.getInstance(); PlayerEntity player = client.player; if (player == null || client.options.hudHidden) return; int duration = 0; int amplifier = 0; var effect = player.getStatusEffect(ModEffects.TRIPPING); if (effect != null) { duration = effect.getDuration(); amplifier = effect.getAmplifier(); } else { return; } int width = client.getWindow().getScaledWidth(); int height = client.getWindow().getScaledHeight(); float ticks = tickCounter.getTickDelta(false) + client.player.age; float intensity = Math.min(1.0f, duration / 200.0f); drawVignette(context, width, height, ticks, intensity); drawWarpingColors(context, width, height, ticks, intensity); drawFloaters(context, width, height, ticks, intensity, amplifier); drawNoise(context, width, height, intensity); } private void drawVignette(DrawContext context, int width, int height, float ticks, float intensity) { int alpha = (int) (80 * intensity); int color1 = getRainbowColor(ticks * 0.02f, 0.5f, 0.6f, alpha); int color2 = getRainbowColor(ticks * 0.02f + 0.33f, 0.5f, 0.6f, alpha); int color3 = getRainbowColor(ticks * 0.02f + 0.66f, 0.5f, 0.6f, alpha); int corner = (int) (Math.min(width, height) * 0.25 * intensity); context.fill(0, 0, width, corner, color1); context.fill(0, 0, corner, height, color2); context.fill(width - corner, 0, width, height, color3); context.fill(0, height - corner, width, height, color1); } private void drawWarpingColors(DrawContext context, int width, int height, float ticks, float intensity) { int bands = 6 + (int)(intensity * 4); for (int i = 0; i < bands; i++) { float phase = (float)i / bands; float offset = (float)Math.sin(ticks * 0.03 + phase * Math.PI * 2) * 40 * intensity; int y = (int)((height / (float)bands) * i + offset); int bandHeight = Math.max(2, (int)(height / (float)bands * 0.3)); int color = getRainbowColor(ticks * 0.01f + phase, 0.6f, 0.8f, (int)(15 * intensity)); context.fill(0, y, width, y + bandHeight, color); } } private void drawFloaters(DrawContext context, int width, int height, float ticks, float intensity, int amplifier) { int count = (int)(8 + amplifier * 4); for (int i = 0; i < count; i++) { float seed = i * 7.111f + 3.333f; float xPhase = (seed * 0.237f) % 1.0f; float yPhase = (seed * 0.691f) % 1.0f; float speed = 0.015f + (seed % 0.02f); float x = (float)((Math.sin(ticks * speed + xPhase * Math.PI * 2) + 1) * 0.5 * width); float y = (float)((Math.cos(ticks * speed * 0.7 + yPhase * Math.PI * 2) + 1) * 0.5 * height); float size = 3 + (seed % 5); int color = getRainbowColor(ticks * 0.005f + seed, 0.8f, 0.7f, (int)(50 * intensity)); context.fill((int)(x - size), (int)(y - size), (int)(x + size), (int)(y + size), color); } } private void drawNoise(DrawContext context, int width, int height, float intensity) { if (intensity > 0.3f && random.nextFloat() < 0.15f * intensity) { int x = random.nextInt(width); int y = random.nextInt(height); int size = random.nextInt(3) + 1; int gray = random.nextInt(256); int color = (gray << 16) | (gray << 8) | gray | (int)(30 * intensity); context.fill(x, y, x + size, y + size, color); } } private int getRainbowColor(float phase, float saturation, float brightness, int alpha) { float r = (float)(Math.sin(phase * Math.PI * 2) * saturation + (1 - saturation)) * brightness; float g = (float)(Math.sin((phase + 0.333f) * Math.PI * 2) * saturation + (1 - saturation)) * brightness; float b = (float)(Math.sin((phase + 0.666f) * Math.PI * 2) * saturation + (1 - saturation)) * brightness; int ri = (int)(r * 255); int gi = (int)(g * 255); int bi = (int)(b * 255); return (alpha << 24) | (ri << 16) | (gi << 8) | bi; } }