package net.minecraft.client.renderer.debug;

import net.minecraft.client.Camera;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.culling.Frustum;
import net.minecraft.core.BlockPos;
import net.minecraft.gizmos.Gizmos;
import net.minecraft.gizmos.TextGizmo.Style;
import net.minecraft.util.debug.DebugSubscriptions;
import net.minecraft.util.debug.DebugValueAccess;
import net.minecraft.util.debug.DebugGoalInfo.DebugGoal;
import net.minecraft.world.phys.Vec3;

public class GoalSelectorDebugRenderer implements DebugRenderer.SimpleDebugRenderer {
	private static final int MAX_RENDER_DIST = 160;
	private final Minecraft minecraft;

	public GoalSelectorDebugRenderer(final Minecraft minecraft) {
		this.minecraft = minecraft;
	}

	@Override
	public void emitGizmos(
		final double camX, final double camY, final double camZ, final DebugValueAccess debugValues, final Frustum frustum, final float partialTicks
	) {
		Camera camera = this.minecraft.gameRenderer.mainCamera();
		BlockPos playerPos = BlockPos.containing(camera.position().x, 0.0, camera.position().z);
		debugValues.forEachEntity(DebugSubscriptions.GOAL_SELECTORS, (entity, goalInfo) -> {
			if (playerPos.closerThan(entity.blockPosition(), 160.0)) {
				for (int i = 0; i < goalInfo.goals().size(); i++) {
					DebugGoal goal = (DebugGoal)goalInfo.goals().get(i);
					double x = entity.getBlockX() + 0.5;
					double y = entity.getY() + 2.0 + i * 0.25;
					double z = entity.getBlockZ() + 0.5;
					int color = goal.isRunning() ? -16711936 : -3355444;
					Gizmos.billboardText(goal.name(), new Vec3(x, y, z), Style.forColorAndCentered(color));
				}
			}
		});
	}
}