package com.devajinkya.hudvisionplus.client; import net.fabricmc.fabric.api.client.rendering.v1.HudRenderCallback; import net.fabricmc.fabric.api.client.screen.v1.ScreenMouseEvents; import net.minecraft.client.MinecraftClient; import net.minecraft.client.gui.DrawContext; import net.minecraft.client.render.RenderTickCounter; import net.minecraft.entity.EquipmentSlot; import net.minecraft.entity.attribute.EntityAttributes; import net.minecraft.entity.player.PlayerEntity; import net.minecraft.item.ItemStack; import net.minecraft.util.Identifier; public class HudRenderer { private static final Identifier ICONS = Identifier.ofVanilla("textures/gui/icons.png"); private final TargetManager targetManager; private float healthAnimation = 0; private float lastHealth = 0; private long lastHealthChangeTime = 0; public HudRenderer(TargetManager targetManager) { this.targetManager = targetManager; } public void register() { HudRenderCallback.EVENT.register(this::renderHud); ScreenMouseEvents.BEFORE_MOUSE_CLICK.register((screen, mouseX, mouseY, button) -> { if (button == 0 && HudConfig.isHudEnabled()) { if (HudPositionManager.isMouseOver(mouseX, mouseY)) { HudPositionManager.startDragging(mouseX, mouseY); return true; } } return false; }); ScreenMouseEvents.BEFORE_MOUSE_RELEASE.register((screen, mouseX, mouseY, button) -> { if (button == 0) { HudPositionManager.stopDragging(); } return false; }); ScreenMouseEvents.ALLOW_MOUSE_DRAG.register((screen, mouseX, mouseY, button, deltaX, deltaY) -> { if (HudConfig.isDragging()) { HudPositionManager.updatePosition(mouseX, mouseY); } return true; }); } private void renderHud(DrawContext context, RenderTickCounter tickCounter) { if (!HudConfig.isHudEnabled()) { return; } PlayerEntity target = targetManager.getCurrentTarget(); if (target == null) { return; } MinecraftClient client = MinecraftClient.getInstance(); if (client.player == null || client.options.hudHidden) { return; } int x = HudConfig.getHudX(); int y = HudConfig.getHudY(); float scale = HudConfig.getHudScale(); context.getMatrices().push(); context.getMatrices().translate(x, y, 0); context.getMatrices().scale(scale, scale, 1.0f); renderBackground(context); renderPlayerName(context, target); int contentY = 20; if (HudConfig.isShowHealth()) { renderHealth(context, target, contentY); contentY += 20; } if (HudConfig.isShowHunger()) { renderHunger(context, target, contentY); contentY += 20; } if (HudConfig.isShowArmor()) { renderArmor(context, target, contentY); contentY += 30; } renderAdditionalInfo(context, target, contentY); context.getMatrices().pop(); } private void renderBackground(DrawContext context) { int width = HudPositionManager.getHudWidth(); int height = HudPositionManager.getHudHeight(); context.fill(0, 0, width, height, 0x80000000); context.fill(0, 0, width, 1, 0xFF555555); context.fill(0, height - 1, width, height, 0xFF555555); context.fill(0, 0, 1, height, 0xFF555555); context.fill(width - 1, 0, width, height, 0xFF555555); } private void renderPlayerName(DrawContext context, PlayerEntity target) { MinecraftClient client = MinecraftClient.getInstance(); String name = target.getName().getString(); int nameWidth = client.textRenderer.getWidth(name); int x = (HudPositionManager.getHudWidth() - nameWidth) / 2; context.drawText(client.textRenderer, name, x, 5, 0xFFFFFF, true); } private void renderHealth(DrawContext context, PlayerEntity target, int y) { MinecraftClient client = MinecraftClient.getInstance(); float health = target.getHealth(); float maxHealth = target.getMaxHealth(); if (health != lastHealth) { lastHealthChangeTime = System.currentTimeMillis(); lastHealth = health; } long timeSinceChange = System.currentTimeMillis() - lastHealthChangeTime; if (timeSinceChange < 1000) { healthAnimation = 1.0f - (timeSinceChange / 1000.0f); } else { healthAnimation = 0; } context.drawText(client.textRenderer, "Health:", 10, y, 0xFFFFFF, true); int heartY = y + 2; int heartX = 60; int fullHearts = (int) (health / 2); boolean halfHeart = (health % 2) != 0; int maxHearts = (int) Math.ceil(maxHealth / 2); for (int i = 0; i < maxHearts; i++) { int u = 16; int v = 0; if (i < fullHearts) { u = 52; } else if (i == fullHearts && halfHeart) { u = 61; } if (health <= 4) { if ((System.currentTimeMillis() / 500) % 2 == 0) { context.drawTexture(ICONS, heartX + i * 8, heartY, u, v, 9, 9); } } else { context.drawTexture(ICONS, heartX + i * 8, heartY, u, v, 9, 9); } } if (healthAnimation > 0) { int alpha = (int) (healthAnimation * 255); int color = (alpha << 24) | 0xFF0000; context.fill(60, y, 60 + (int) (maxHearts * 8), y + 10, color); } String healthText = String.format("%.1f/%.1f", health, maxHealth); context.drawText(client.textRenderer, healthText, heartX + maxHearts * 8 + 5, y, 0xFFFFFF, true); } private void renderHunger(DrawContext context, PlayerEntity target, int y) { MinecraftClient client = MinecraftClient.getInstance(); int foodLevel = target.getHungerManager().getFoodLevel(); int maxFood = 20; context.drawText(client.textRenderer, "Hunger:", 10, y, 0xFFFFFF, true); int foodY = y + 2; int foodX = 60; int fullFood = foodLevel / 2; boolean halfFood = (foodLevel % 2) != 0; int maxFoodIcons = maxFood / 2; for (int i = 0; i < maxFoodIcons; i++) { int u = 16; int v = 27; if (i < fullFood) { u = 52; } else if (i == fullFood && halfFood) { u = 61; } context.drawTexture(ICONS, foodX + i * 8, foodY, u, v, 9, 9); } String foodText = String.format("%d/%d", foodLevel, maxFood); context.drawText(client.textRenderer, foodText, foodX + maxFoodIcons * 8 + 5, y, 0xFFFFFF, true); } private void renderArmor(DrawContext context, PlayerEntity target, int y) { MinecraftClient client = MinecraftClient.getInstance(); context.drawText(client.textRenderer, "Armor:", 10, y, 0xFFFFFF, true); int armorX = 60; EquipmentSlot[] slots = {EquipmentSlot.HEAD, EquipmentSlot.CHEST, EquipmentSlot.LEGS, EquipmentSlot.FEET}; for (int i = 0; i < slots.length; i++) { ItemStack armor = target.getEquippedStack(slots[i]); if (!armor.isEmpty()) { int x = armorX + i * 45; context.drawItem(armor, x, y); if (HudConfig.isShowDurability() && armor.isDamageable()) { int maxDurability = armor.getMaxDamage(); int currentDurability = maxDurability - armor.getDamage(); float durabilityPercent = (float) currentDurability / maxDurability; int color = getDurabilityColor(durabilityPercent); String durabilityText = currentDurability + ""; context.drawText(client.textRenderer, durabilityText, x + 18, y + 2, color, true); if (durabilityPercent < 0.2f) { if ((System.currentTimeMillis() / 300) % 2 == 0) { context.fill(x, y, x + 16, y + 16, 0x80FF0000); } } } } } } private void renderAdditionalInfo(DrawContext context, PlayerEntity target, int y) { MinecraftClient client = MinecraftClient.getInstance(); float health = target.getHealth(); double armor = target.getAttributeValue(EntityAttributes.GENERIC_ARMOR); double toughness = target.getAttributeValue(EntityAttributes.GENERIC_ARMOR_TOUGHNESS); int hitsToKill = calculateHitsToKill(health, armor, toughness); String hitsText = "Hits to kill: " + hitsToKill; context.drawText(client.textRenderer, hitsText, 10, y, 0xFFFF55, true); if (targetManager.hasRecentDamage()) { float lastDamage = targetManager.getLastDamage(); String damageText = String.format("Last damage: %.1f", lastDamage); context.drawText(client.textRenderer, damageText, 10, y + 12, 0xFF5555, true); } } private int calculateHitsToKill(float health, double armor, double toughness) { MinecraftClient client = MinecraftClient.getInstance(); if (client.player == null) { return 0; } double attackDamage = client.player.getAttributeValue(EntityAttributes.GENERIC_ATTACK_DAMAGE); double damageReduction = Math.max( armor / 5.0, armor - (4.0 * attackDamage) / (toughness + 8.0) ); damageReduction = Math.max(0, Math.min(20, damageReduction)); double effectiveDamage = attackDamage * (1.0 - (damageReduction / 25.0)); effectiveDamage = Math.max(0.1, effectiveDamage); return (int) Math.ceil(health / effectiveDamage); } private int getDurabilityColor(float percent) { if (percent > 0.6f) { return 0x55FF55; } else if (percent > 0.3f) { return 0xFFFF55; } else { return 0xFF5555; } } }