migrate ALMOST everything from source tree into client

source/client/gui/screens/IngameBlockSelectionScreen.cpp

@@ -0,0 +1,175 @@
+/********************************************************************
+	Minecraft: Pocket Edition - Decompilation Project
+	Copyright (C) 2023 iProgramInCpp
+	
+	The following code is licensed under the BSD 1 clause license.
+	SPDX-License-Identifier: BSD-1-Clause
+ ********************************************************************/
+
+#include "IngameBlockSelectionScreen.hpp"
+#include "ItemRenderer.hpp"
+
+std::string g_sNotAvailableInDemoVersion = "Not available in the demo version";
+
+Inventory* IngameBlockSelectionScreen::getInventory()
+{
+	return m_pMinecraft->m_pLocalPlayer->m_pInventory;
+}
+
+int IngameBlockSelectionScreen::getBottomY()
+{
+	// -1 for some reason, -2 to make it align between top of screen and top of hotbar instead
+	return (m_height - 22 * (getSlotsHeight() - 2)) / 2;
+}
+
+int IngameBlockSelectionScreen::getSelectedSlot(int x, int y)
+{
+	int slotsHeight = getSlotsHeight();
+	int bottom = m_height - getBottomY();
+	int top = bottom - slotsHeight * 22;
+	int left = m_width / 2 - 87;
+
+	if (y < top)
+		return -1;
+	if (x < left)
+		return -1;
+
+	int idx = (x - left) / 20;
+	if (idx > 8)
+		return -1;
+
+	return idx + 9 * slotsHeight - 9 * ((y - top) / 22);
+}
+
+int IngameBlockSelectionScreen::getSlotPosX(int x)
+{
+	return m_width / 2 - 88 + 20 * x;
+}
+
+int IngameBlockSelectionScreen::getSlotPosY(int y)
+{
+	return m_height - getBottomY() - 22 * y;
+}
+
+int IngameBlockSelectionScreen::getSlotsHeight()
+{
+	return (getInventory()->getNumSlots() + 8) / 9;
+}
+
+bool IngameBlockSelectionScreen::isAllowed(int slot)
+{
+	return slot >= 0 && slot < getInventory()->getNumSlots();
+}
+
+void IngameBlockSelectionScreen::init()
+{
+	Inventory* pInv = getInventory();
+
+	int nItems = pInv->getNumItems();
+
+	for (int i = 0; i < nItems; i++)
+	{
+		if (pInv->getItem(i)->m_itemID == pInv->getSelectedItemId())
+		{
+			m_selectedSlot = i;
+			break;
+		}
+	}
+
+	if (!isAllowed(m_selectedSlot))
+		m_selectedSlot = 0;
+}
+
+void IngameBlockSelectionScreen::renderSlot(int index, int x, int y, float f)
+{
+	ItemInstance* pItem = getInventory()->getItem(index);
+	if (!pItem)
+		return;
+
+	if (!pItem->m_itemID)
+		return;
+
+	ItemRenderer::renderGuiItem(m_pMinecraft->m_pFont, m_pMinecraft->m_pTextures, pItem, x, y, true);
+	ItemRenderer::renderGuiItemOverlay(m_pMinecraft->m_pFont, m_pMinecraft->m_pTextures, pItem, x, y);
+}
+
+void IngameBlockSelectionScreen::renderSlots()
+{
+	glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
+	m_pMinecraft->m_pTextures->loadAndBindTexture("gui/gui.png");
+
+	for (int y = 0; y != -22 * getSlotsHeight(); y -= 22)
+		blit(m_width / 2 - 182 / 2, m_height - 3 - getBottomY() + y, 0, 0, 182, 22, 0, 0);
+
+	if (m_selectedSlot >= 0)
+		blit(m_width / 2 - 92 + 20 * (m_selectedSlot % 9), m_height - 4 - getBottomY() - 22 * (m_selectedSlot / 9), 0, 22, 24, 22, 0, 0);
+
+	for (int y = 0, index = 0; y < getSlotsHeight(); y++)
+	{
+		int posY = getSlotPosY(y);
+		for (int x = 0; x < 9; x++)
+		{
+			int posX = getSlotPosX(x);
+			renderSlot(index++, posX, posY, 0.0f);
+		}
+	}
+}
+
+void IngameBlockSelectionScreen::renderDemoOverlay()
+{
+	fill(getSlotPosX(0) - 3, getSlotPosY(1) - 3, getSlotPosX(9), getSlotPosY(-1), 0xA0000000);
+	
+	int x = (getSlotPosX(4) + getSlotPosX(5)) / 2;
+	int y = (getSlotPosY(0) + getSlotPosY(1)) / 2 + 5;
+
+	drawCenteredString(m_pMinecraft->m_pFont, g_sNotAvailableInDemoVersion, x, y, 0xFFFFFFFF);
+}
+
+void IngameBlockSelectionScreen::render(int x, int y, float f)
+{
+	Screen::render(x, y, f);
+	glDisable(GL_DEPTH_TEST);
+
+	fill(0, 0, m_width, m_height, 0x80000000);
+
+	glEnable(GL_BLEND);
+	renderSlots();
+
+#ifdef DEMO
+	renderDemoOverlay();
+#endif
+
+	glEnable(GL_DEPTH_TEST);
+}
+
+void IngameBlockSelectionScreen::mouseClicked(int x, int y, int type)
+{
+	// not a left click
+	if (type != 1)
+		return;
+
+	int slot = getSelectedSlot(x, y);
+	if (isAllowed(slot))
+		m_selectedSlot = slot;
+}
+
+void IngameBlockSelectionScreen::mouseReleased(int x, int y, int type)
+{
+	// not a left click
+	if (type != 1)
+		return;
+
+	int slot = getSelectedSlot(x, y);
+	if (isAllowed(slot) && slot == m_selectedSlot)
+		selectSlotAndClose();
+}
+
+void IngameBlockSelectionScreen::selectSlotAndClose()
+{
+	Inventory* pInv = getInventory();
+	
+	pInv->selectItem(m_selectedSlot);
+
+	m_pMinecraft->m_pSoundEngine->play("random.click");
+	m_pMinecraft->setScreen(nullptr);
+}