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https://github.com/celisej567/mcpe.git
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migrate ALMOST everything from source tree into client
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riall
GitHub
416
source/client/gui/Gui.cpp
Normal file
416
source/client/gui/Gui.cpp
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/********************************************************************
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Minecraft: Pocket Edition - Decompilation Project
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Copyright (C) 2023 iProgramInCpp
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The following code is licensed under the BSD 1 clause license.
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SPDX-License-Identifier: BSD-1-Clause
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********************************************************************/
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#include "Minecraft.hpp"
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#include "IngameBlockSelectionScreen.hpp"
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#include "ItemRenderer.hpp"
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#ifdef _WIN32
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#pragma warning(disable : 4244)
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#endif
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#ifdef ENH_USE_GUI_SCALE_2
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float Gui::InvGuiScale = 0.5f;
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#else
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float Gui::InvGuiScale = 0.333333f;
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#endif
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Gui::Gui(Minecraft* pMinecraft)
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{
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m_pMinecraft = pMinecraft;
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xglGenBuffers(1, &m_renderChunk.field_0);
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}
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void Gui::addMessage(const std::string& s)
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{
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std::string str = s;
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while (m_pMinecraft->m_pFont->width(str) > 320)
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{
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int i = 2;
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for (; i < int(str.size()); i++)
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{
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std::string sstr = str.substr(0, i);
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// this sucks
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if (m_pMinecraft->m_pFont->width(sstr) > 320)
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break;
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}
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std::string sstr = str.substr(0, i - 1);
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addMessage(sstr);
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str = str.substr(i - 1);
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}
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if (m_guiMessages.size() > 50)
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{
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m_guiMessages.erase(m_guiMessages.end());
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}
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m_guiMessages.insert(m_guiMessages.begin(), GuiMessage(str, 0));
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}
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void Gui::setNowPlaying(const std::string& str)
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{
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field_A00 = "Now playing: " + str;
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field_A18 = 60;
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field_A1C = true;
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}
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void Gui::renderVignette(float a2, int a3, int a4)
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{
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a2 = 1.0f - a2;
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if (a2 > 1.0f)
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a2 = 1.0f;
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if (a2 < 0.0f)
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a2 = 0.0f;
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field_A20 += ((a2 - field_A20) * 0.01f);
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glDisable(GL_DEPTH_TEST);
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glDepthMask(false);
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glBlendFunc(GL_ZERO, GL_ONE_MINUS_SRC_COLOR);
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glColor4f(field_A20, field_A20, field_A20, 1.0f);
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//! @BUG: No misc/vignette.png to be found in the original.
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//! This function is unused anyways
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m_pMinecraft->m_pTextures->loadAndBindTexture("misc/vignette.png");
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Tesselator& t = Tesselator::instance;
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t.begin();
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t.vertexUV(0.0f, a4, -90.0f, 0.0f, 1.0f);
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t.vertexUV(a3, a4, -90.0f, 1.0f, 1.0f);
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t.vertexUV(a3, 0.0f, -90.0f, 1.0f, 0.0f);
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t.vertexUV(0.0f, 0.0f, -90.0f, 0.0f, 0.0f);
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t.draw();
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glDepthMask(true);
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glEnable(GL_DEPTH_TEST);
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glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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}
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void Gui::inventoryUpdated()
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{
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field_A3C = true;
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}
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void Gui::render(float f, bool bHaveScreen, int mouseX, int mouseY)
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{
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Minecraft* m = m_pMinecraft;
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m->m_pGameRenderer->setupGuiScreen();
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if (!m->m_pLevel || !m->m_pLocalPlayer)
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return;
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field_4 = -90.0f;
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#ifndef ENH_TRANSPARENT_HOTBAR
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glColor4f(1.0f, 1.0f, 1.0f, 0.5f);
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#else
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glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
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#endif
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m->m_pTextures->loadAndBindTexture("gui/gui.png");
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Inventory* pInventory = m->m_pLocalPlayer->m_pInventory;
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field_4 = -90.0f;
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int width = Minecraft::width * InvGuiScale,
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height = Minecraft::height * InvGuiScale;
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#ifdef ENH_TRANSPARENT_HOTBAR
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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#endif
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// hotbar
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int cenX = width / 2;
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blit(cenX - 182 / 2, height - 22, 0, 0, 182, 22, 0, 0);
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// selection mark
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blit(cenX - 92 + 20 * pInventory->m_SelectedHotbarSlot, height - 23, 0, 22, 24, 22, 0, 0);
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m->m_pTextures->loadAndBindTexture("gui/icons.png");
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#ifndef ENH_TRANSPARENT_HOTBAR
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glEnable(GL_BLEND);
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#endif
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glBlendFunc(GL_ONE_MINUS_DST_COLOR, GL_ONE_MINUS_SRC_COLOR);
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// crosshair
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blit(cenX - 8, height / 2 - 8, 0, 0, 16, 16, 0, 0);
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glDisable(GL_BLEND);
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if (m_pMinecraft->m_pGameMode->canHurtPlayer())
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{
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LocalPlayer* pLP = m_pMinecraft->m_pLocalPlayer;
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// why??
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m_random.init_genrand(312871 * field_9FC);
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int emptyHeartX = 16;
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bool b1 = false;
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if (pLP->field_B8 < 10)
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{
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b1 = pLP->field_B8 / 3 % 2;
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emptyHeartX += 9 * b1;
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}
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// @NOTE: At the default scale, this would go off screen.
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int heartX = cenX - 191; // why?
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int heartYStart = height - 10;
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//@NOTE: Alpha-style health UI. I'll probably remove this on release.
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#ifndef ORIGINAL_CODE
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heartX = cenX - 91;
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heartYStart = height - 32;
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#endif
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int playerHealth = pLP->m_health;
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for (int healthNo = 1; healthNo <= C_MAX_MOB_HEALTH; healthNo += 2)
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{
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int heartY = heartYStart;
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if (playerHealth <= 4 && m_random.genrand_int32() % 2)
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heartY++;
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blit(heartX, heartY, emptyHeartX, 0, 9, 9, 0, 0);
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if (b1)
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{
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if (healthNo < pLP->field_100)
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blit(heartX, heartY, 70, 0, 9, 9, 0, 0);
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else if (healthNo == pLP->field_100)
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blit(heartX, heartY, 79, 0, 9, 9, 0, 0);
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}
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if (healthNo < playerHealth)
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blit(heartX, heartY, 52, 0, 9, 9, 0, 0);
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else if (healthNo == playerHealth)
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blit(heartX, heartY, 61, 0, 9, 9, 0, 0);
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heartX += 8;
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}
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if (m->m_pLocalPlayer->isUnderLiquid(Material::water))
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{
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int breathRaw = m->m_pLocalPlayer->field_BC;
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int breathFull = int(ceilf((float(breathRaw - 2) * 10.0f) / 300.0f));
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int breathMeter = int(ceilf((float(breathRaw) * 10.0f) / 300.0f)) - breathFull;
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int bubbleX = cenX - 191;
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int bubbleY = height - 19;
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#ifndef ORIGINAL_CODE
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bubbleX = cenX - 91;
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bubbleY = height - 41;
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#endif
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//@NOTE: Not sure this works as it should
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for (int bubbleNo = 0; bubbleNo < breathFull + breathMeter; bubbleNo++)
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{
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if (bubbleNo < breathFull)
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blit(bubbleX, bubbleY, 16, 18, 9, 9, 0, 0);
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else
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blit(bubbleX, bubbleY, 25, 18, 9, 9, 0, 0);
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bubbleX += 8;
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}
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}
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}
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m->m_pTextures->loadAndBindTexture("gui/gui_blocks.png");
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int slotX = cenX - 88;
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for (int i = 0; i < C_MAX_HOTBAR_ITEMS; i++)
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{
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renderSlot(i, slotX, height - 19, f);
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slotX += 20;
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}
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slotX = cenX - 88;
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for (int i = 0; i < C_MAX_HOTBAR_ITEMS; i++)
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{
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renderSlotOverlay(i, slotX, height - 19, f);
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slotX += 20;
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}
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field_A3C = false;
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// blit the "more items" button
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#ifndef ENH_ENABLE_9TH_SLOT
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m->m_pTextures->loadAndBindTexture(C_TERRAIN_NAME);
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blit(cenX + 72, height - 19, 208, 208, 16, 16, 0, 0);
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#endif
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// render messages
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int topEdge = height - 49;
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for (auto& msg : m_guiMessages)
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{
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if (msg.field_18 > 199)
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continue;
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int bkgdColor = 0x7F000000, textColor = 0xFFFFFFFF;
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float fade = 10.0f * (1.0f - (float(msg.field_18) / 200.0f));
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if (fade <= 0.0f)
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continue;
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if (fade < 1.0f)
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{
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int x = int(fade * fade * 255.0f);
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if (x == 0)
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continue;
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bkgdColor = (x / 2) << 24;
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textColor = (x << 24) + 0xFFFFFF;
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}
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fill(2, topEdge, 322, topEdge + 9, bkgdColor);
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glEnable(GL_BLEND);
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m->m_pFont->drawShadow(msg.msg, 2, topEdge + 1, textColor);
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topEdge -= 9;
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}
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glDisable(GL_BLEND);
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}
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void Gui::tick()
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{
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for (auto& msg : m_guiMessages)
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{
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msg.field_18++;
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}
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}
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void Gui::renderSlot(int slot, int x, int y, float f)
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{
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Inventory* pInv = m_pMinecraft->m_pLocalPlayer->m_pInventory;
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ItemInstance* pInst = pInv->getQuickSlotItem(slot);
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if (!pInst)
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return;
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if (!pInst->m_itemID)
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return;
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ItemRenderer::renderGuiItem(m_pMinecraft->m_pFont, m_pMinecraft->m_pTextures, pInst, x, y, true);
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}
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void Gui::renderSlotOverlay(int slot, int x, int y, float f)
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{
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Inventory* pInv = m_pMinecraft->m_pLocalPlayer->m_pInventory;
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ItemInstance* pInst = pInv->getQuickSlotItem(slot);
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if (!pInst)
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return;
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if (!pInst->m_itemID)
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return;
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ItemRenderer::renderGuiItemOverlay(m_pMinecraft->m_pFont, m_pMinecraft->m_pTextures, pInst, x, y);
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}
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int Gui::getSlotIdAt(int mouseX, int mouseY)
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{
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int scaledY = int(InvGuiScale * mouseY);
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int scaledHeight = int(InvGuiScale * Minecraft::height);
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if (scaledY >= scaledHeight)
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return -1;
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if (scaledY < scaledHeight-19)
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return -1;
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int slotX = (int(InvGuiScale * mouseX) - int(InvGuiScale * Minecraft::width) / 2 + 88 + 20) / 20;
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//@NOTE: Why not just -88?
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if (slotX >= 0)
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slotX--;
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if (slotX > 8)
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slotX = -1;
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return slotX;
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}
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bool Gui::isInside(int mouseX, int mouseY)
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{
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return getSlotIdAt(mouseX, mouseY) != -1;
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}
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void Gui::handleClick(int clickID, int mouseX, int mouseY)
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{
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if (clickID != 1)
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return;
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int slot = getSlotIdAt(mouseX, mouseY);
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if (slot == -1)
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return;
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#ifndef ENH_ENABLE_9TH_SLOT
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if (slot == 8)
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{
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m_pMinecraft->setScreen(new IngameBlockSelectionScreen);
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}
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else
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#endif
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{
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m_pMinecraft->m_pLocalPlayer->m_pInventory->selectSlot(slot);
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}
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}
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void Gui::handleKeyPressed(int keyCode)
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{
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switch (keyCode)
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{
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case AKEYCODE_BUTTON_Y:
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{
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m_pMinecraft->setScreen(new IngameBlockSelectionScreen);
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break;
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}
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case AKEYCODE_BACK:
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{
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int* slot = &m_pMinecraft->m_pLocalPlayer->m_pInventory->m_SelectedHotbarSlot;
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#ifdef ENH_ENABLE_9TH_SLOT
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#define MAX_ITEMS (C_MAX_HOTBAR_ITEMS - 2)
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#else
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#define MAX_ITEMS (C_MAX_HOTBAR_ITEMS - 3)
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#endif
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//@HUH: for whatever reason, it ignores the 7th item
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if (*slot <= MAX_ITEMS)
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(*slot)++;
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break;
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}
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case AKEYCODE_BUTTON_X:
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{
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int* slot = &m_pMinecraft->m_pLocalPlayer->m_pInventory->m_SelectedHotbarSlot;
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if (*slot > 0)
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(*slot)--;
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break;
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}
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}
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}
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