package catalystsurvival.display;

import catalystsurvival.Main;
import catalystsurvival.display.bossbar.BossBars;
import catalystsurvival.entity.player.EntityPlayer;
import catalystsurvival.init.Textures;
import catalystsurvival.inventory.Inventory;
import catalystsurvival.text.Text;
import catalystsurvival.util.gl.GlHelpers;
import catalystsurvival.util.gl.texture.TextureReference;
import catalystsurvival.util.math.ItemStack;
import catalystsurvival.util.math.vec.Vec2d;

public class DisplayRenderUI
{
	
	
	public static void render()
	{
		// Get the player
		EntityPlayer player = Main.player;
		
		// Disable some opengl options
		GlHelpers.disableDepthTest();
		GlHelpers.color4(1, 1, 1, 1);
		
		// Get the aspect ratio
		double aspect_ratio = (
				((double) Main.window.getWidth()) /
				((double) Main.window.getHeight()));
		
		// Get some text settings
		Vec2d text_size = new Vec2d(0.45, 0.45);
		
		// Render the fps
		GlHelpers.pushMatrix();
		GlHelpers.translate2(-9.5, 9.5);
		GlHelpers.color3(1, 1, 0);
		Text.render("FPS: " + DisplayStatsEventHandler.fps, text_size);
		GlHelpers.popMatrix();
		
		if(Main.menu.doGameRender)
		{
			// Render the fps and the position
			GlHelpers.pushMatrix();
			GlHelpers.translate2(-9.5, 9);
			GlHelpers.color3(1, 1, 0);
			Text.render("x: " + (int) player.pos.x + ", y: " + (int) player.pos.y, text_size);
			GlHelpers.color3(1, 1, 1);
			GlHelpers.popMatrix();
			
			// Render the healthbar
			double max_health = player.maxHealth();
			double a = 1 - (player.getHealth() / max_health);
			TextureReference health_fg = Textures.UI_HEALTH_FG;
			TextureReference health_bg = Textures.UI_HEALTH_BG;
			
			GlHelpers.pushMatrix();
			GlHelpers.translate2(-2, -9);
			GlHelpers.begin();
			
			health_bg.texCoord(0, 1);	GlHelpers.vertex2(-8, 1);
			health_bg.texCoord(0, 0);	GlHelpers.vertex2(-8, 0);
			health_bg.texCoord(1, 0);	GlHelpers.vertex2(8, 0);
			health_bg.texCoord(1, 1);	GlHelpers.vertex2(8, 1);
			
			health_fg.texCoord(0, 1);	GlHelpers.vertex2(-8, 1);
			health_fg.texCoord(0, 0);	GlHelpers.vertex2(-8, 0);
			health_fg.texCoord(1-a, 0);	GlHelpers.vertex2(8-a*16, 0);
			health_fg.texCoord(1-a, 1);	GlHelpers.vertex2(8-a*16, 1);
			
			GlHelpers.end();
			GlHelpers.popMatrix();
			
			// Display the amount of ammo left, and the defence and gun level
			GlHelpers.pushMatrix();
			TextureReference ammo_tex = Textures.ITEM_AMMO_BOX;
			TextureReference gunlevel_tex = Textures.UI_GUN_LEVEL;
			TextureReference deflevel_tex = Textures.UI_DEFENCE_LEVEL;
			
			GlHelpers.translate2(-9.5, -9);
			GlHelpers.begin();
			ammo_tex.texCoord(0, 1);	GlHelpers.vertex2(0, 0);
			ammo_tex.texCoord(0, 0);	GlHelpers.vertex2(0, 2);
			ammo_tex.texCoord(1, 0);	GlHelpers.vertex2(2, 2);
			ammo_tex.texCoord(1, 1);	GlHelpers.vertex2(2, 0);
			GlHelpers.end();
			
			GlHelpers.translate2(0, 2.5);
			GlHelpers.begin();
			gunlevel_tex.texCoord(0, 1);	GlHelpers.vertex2(0, 0);
			gunlevel_tex.texCoord(0, 0);	GlHelpers.vertex2(0, 2);
			gunlevel_tex.texCoord(1, 0);	GlHelpers.vertex2(2, 2);
			gunlevel_tex.texCoord(1, 1);	GlHelpers.vertex2(2, 0);
			GlHelpers.end();
			
			GlHelpers.translate2(0, 2.5);
			GlHelpers.begin();
			deflevel_tex.texCoord(0, 1);	GlHelpers.vertex2(0, 0);
			deflevel_tex.texCoord(0, 0);	GlHelpers.vertex2(0, 2);
			deflevel_tex.texCoord(1, 0);	GlHelpers.vertex2(2, 2);
			deflevel_tex.texCoord(1, 1);	GlHelpers.vertex2(2, 0);
			GlHelpers.end();
			
			GlHelpers.popMatrix();
			GlHelpers.pushMatrix();
			GlHelpers.translate2(-8.5, -9.25);
			Text.render(Integer.toString(player.ammo), text_size);
			GlHelpers.translate2(0, 3);
			Text.render(Integer.toString(player.gun_level), text_size);
			GlHelpers.translate2(0, 2);
			Text.render(Integer.toString(player.defence_level), text_size);
			GlHelpers.popMatrix();
			
			// Display all the items in the players inventory
			TextureReference slots_tex = Textures.UI_ITEM_SLOTS;
			
			GlHelpers.pushMatrix();
			GlHelpers.translate2(3, -9.5);
			
			GlHelpers.begin();
			slots_tex.texCoord(0, 1);	GlHelpers.vertex2(12, 2);
			slots_tex.texCoord(0, 0);	GlHelpers.vertex2(12, 0);
			slots_tex.texCoord(1, 0);	GlHelpers.vertex2(0, 0);
			slots_tex.texCoord(1, 1);	GlHelpers.vertex2(0, 2);
			GlHelpers.end();
			
			// Render the players active slot
			TextureReference hotbar_slot_tex = Textures.UI_ACTIVE_SLOT;
			GlHelpers.begin();
			
			hotbar_slot_tex.texCoord(0, 1);	GlHelpers.vertex2(2.1 + player.inventory_hand*2, 2.1);
			hotbar_slot_tex.texCoord(0, 0);	GlHelpers.vertex2(2.1 + player.inventory_hand*2, -0.1);
			hotbar_slot_tex.texCoord(1, 0);	GlHelpers.vertex2(-0.1 + player.inventory_hand*2, -0.1);
			hotbar_slot_tex.texCoord(1, 1);	GlHelpers.vertex2(-0.1 + player.inventory_hand*2, 2.1);
			
			GlHelpers.end();
			
			GlHelpers.popMatrix();
			
			// Get the players inventory
			Inventory player_inv = player.getInventory();
			
			GlHelpers.pushMatrix();
			GlHelpers.translate2(3.12, -9.5);
			
			// Render the players inventory
			for(int i=0;i<6;i++)
			{
				ItemStack player_item = player_inv.getItem(i);
				
				if(!player_item.isEmpty())
				{
					GlHelpers.pushMatrix();
					GlHelpers.translate2(i * 2 / aspect_ratio, 0.3);
					player_item.item.render(new Vec2d(0, 0), new Vec2d(1.5, 1.5));
					GlHelpers.translate2(0.5 / aspect_ratio, -0.1);
					Text.render(Integer.toString(player_item.count), text_size);
					GlHelpers.popMatrix();
				}
			}
			
			GlHelpers.popMatrix();
			
			// Render the active slots text
			ItemStack item_active = player_inv.getItem(player.inventory_hand);
			if(!item_active.isEmpty())
			{
				GlHelpers.pushMatrix();
				GlHelpers.translate2(3.5, -7.25);
				Text.render(item_active.item.getName(item_active.meta), text_size);
				GlHelpers.popMatrix();
			}
			
			// Render the boss bars
			BossBars.render();
		}
		
		// Render the loaded menu
		Main.menu.render();
	}
}