package net.tylermurphy.Minecraft.Render;

import net.tylermurphy.Minecraft.Render.Data.Mesh;
import org.joml.Matrix4f;

import net.tylermurphy.Minecraft.Audio.SoundManager;
import net.tylermurphy.Minecraft.Render.Data.Texture;
import net.tylermurphy.Minecraft.Scene.World;
import net.tylermurphy.Minecraft.UI.UIMaster;
import net.tylermurphy.Minecraft.Util.Constants;
import net.tylermurphy.Minecraft.Render.Data.Display;
import net.tylermurphy.Minecraft.Util.MousePicker;
import org.joml.Vector3f;

public class MainRenderer {
	
	private final GuiRenderer guiRenderer;
	private final FontRenderer fontRenderer;
	private final ChunkRenderer chunkRenderer;
	
	private Matrix4f projectionMatrix;
	
	public MainRenderer() {
		guiRenderer = new GuiRenderer();
		fontRenderer = new FontRenderer();
		createProjectionMatrix();
		MousePicker.init(projectionMatrix);
		chunkRenderer = new ChunkRenderer(projectionMatrix);
	}
	
	public void update() {
		if(Display.wasResized) {
			Display.wasResized = false;
			createProjectionMatrix();
		}
		chunkRenderer.render(projectionMatrix);
		if(!World.player.isDead) {
			World.player.move();
			World.player.getTransform().setRotation(new Vector3f(
					World.camera.getPitch(),
					-World.camera.getYaw(),
					World.camera.getRoll()
			));
			World.camera.move();
		}
		UIMaster.renderUI(guiRenderer, fontRenderer);
		MousePicker.update();
		SoundManager.setListenerData(World.player.getTransform().getPosition().x, World.player.getTransform().getPosition().y , World.player.getTransform().getPosition().z);
	}
	
	public void close() {
		guiRenderer.cleanUp();
		chunkRenderer.cleanUp();
		Mesh.cleanUp();
		Texture.cleanUp();
	}
	
	private void createProjectionMatrix(){
		float aspectRatio = (float) Display.getWidth() / (float) Display.getHeight();
		float y_scale = (float) ((1f / Math.tan(Math.toRadians(Constants.FOV / 2f))));
		float x_scale = y_scale / aspectRatio;
		float frustum_length = Constants.FAR_DISTANCE - Constants.NEAR_DISTANCE;

		projectionMatrix = new Matrix4f()
				.m00(x_scale)
				.m11(y_scale)
				.m22( -((Constants.FAR_DISTANCE + Constants.NEAR_DISTANCE) / frustum_length) )
				.m23(-1)
				.m32( -((2 * Constants.NEAR_DISTANCE * Constants.FAR_DISTANCE) / frustum_length) )
				.m33(0);
    }
	
}