package com.lothrazar.powerinventory;

import com.lothrazar.powerinventory.inventory.button.GuiButtonUnlockStorage;

public class InventoryRenderer {
	private static final int topspace = 12 + Const.SQ;// space used by top half

	private static final int left = 7, pad = 4;
	private static final int segsLeft = 10;// segments on the left two columns
	private static final int centerHoriz = Const.SLOTS_WIDTH / 2 - GuiButtonUnlockStorage.width / 2;
	private static final int centerVert = topspace - Const.SLOTS_HEIGHT / 2 - GuiButtonUnlockStorage.height / 2;

	private static int rowFromSegment(int segment) {

		// so 1,2 are in row 1. but also 11 is in row 1 so we split it off
		if (segment <= segsLeft)
			return (int) Math.ceil(((double) segment) / 2);// so 3 and 4 => 2
		else
			return segment - segsLeft;// so 1 -> 5
	}

	private static int colFromSegment(int segment) {

		// first chunk alternates btw colum 1,2 back and forth
		if (segment <= segsLeft)
			if (segment % 2 == 0)
				return 2; // starting with odd row in the top right for segment
							// 1
			else
				return 1;
		else
			return 3;
	}

	// 1 2 11
	// 3 4 12
	// 5 6 13
	// 7 8 14
	// 9 10 15
	// small: segments are [1,6]
	// large: segments are [1,15]

	public static int xPosBtn(int segment) {
		int col = colFromSegment(segment);

		return (col - 1) * Const.SLOTS_WIDTH + centerHoriz;
	}

	public static int yPosBtn(int segment) {

		int row = rowFromSegment(segment);
		// one of the only ones not row-1
		return row * Const.SLOTS_HEIGHT + centerVert;
	}

	public static int xPosTexture(int segment) {

		int col = colFromSegment(segment);
		// so column 1 is set only by the padding
		return left + (col - 1) * (pad + Const.SLOTS_WIDTH);
	}

	public static int yPosTexture(int segment) {

		int row = rowFromSegment(segment);
		return topspace + (row - 1) * (pad + Const.SLOTS_HEIGHT);
	}

	public static int xPosSlotsStart(int segment) {
		int col = colFromSegment(segment);

		return 2 * pad + (col - 1) * (Const.SLOTS_WIDTH + pad);
	}

	public static int yPosSlotsStart(int segment) {
		int row = rowFromSegment(segment);
		int topLimit = topspace + 1;// 13+Const.SQ;//DIFFERENT than topSpace -
									// this is for data slot not images

		return topLimit + (row - 1) * (Const.SLOTS_HEIGHT + pad);
	}

	public static int xPosSwap(int segment) {
		int col = colFromSegment(segment);

		return 1 + (col - 1) * (Const.SLOTS_WIDTH + pad);
	}

	public static int yPosSwap(int segment) {
		int row = rowFromSegment(segment);

		// todo: maybe use topspace??
		return 30 + (row - 1) * (Const.SLOTS_HEIGHT + pad);
	}
}

@@ -2373,17 +2373,17 @@
 %09return 
-1
+2
  + (col 

move button a bit to the right, centered