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4jcraft/Minecraft.Client/UI/Screens/TitleScreen.cpp
MatthewBeshay dfb0e3b03e refactor: replace NULL with nullptr across C++ codebase 
Excludes vendored C libs (zlib, Miles, DirectXMath, boost, Iggy).
2026-03-30 16:25:52 +11:00

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#include "../../Platform/stdafx.h"
#include "../Button.h"
#include "OptionsScreen.h"
#include "SelectWorldScreen.h"
#include "JoinMultiplayerScreen.h"
#include "../../Rendering/Tesselator.h"
#include "../../Textures/Textures.h"
#include "../../GameState/Options.h"
#include "../../../Minecraft.World/Util/StringHelpers.h"
#include "../../../Minecraft.World/IO/Streams/InputOutputStream.h"
#include "../../../Minecraft.World/Headers/net.minecraft.locale.h"
#include "../../../Minecraft.World/Platform/System.h"
#include "../../../Minecraft.World/Util/Random.h"
#include <GL/gl.h>
#include "TitleScreen.h"
Random* TitleScreen::random = new Random();
TitleScreen::TitleScreen() {
// 4J - added initialisers
vo = 0;
multiplayerButton = nullptr;
splash = L"missingno";
// try { // 4J - removed try/catch
std::vector<std::wstring> splashes;
// 4jcraft: copied over from UIScene_MainMenu
int splashIndex;
std::wstring filename = L"splashes.txt";
if (app.hasArchiveFile(filename)) {
byteArray splashesArray = app.getArchiveFile(filename);
ByteArrayInputStream bais(splashesArray);
InputStreamReader isr(&bais);
BufferedReader br(&isr);
std::wstring line = L"";
while (!(line = br.readLine()).empty()) {
line = trimString(line);
if (line.length() > 0) {
splashes.push_back(line);
}
}
br.close();
}
splashIndex =
eSplashRandomStart + 1 +
random->nextInt((int)splashes.size() - (eSplashRandomStart + 1));
// Override splash text on certain dates
SYSTEMTIME LocalSysTime;
GetLocalTime(&LocalSysTime);
if (LocalSysTime.wMonth == 11 && LocalSysTime.wDay == 9) {
splashIndex = eSplashHappyBirthdayEx;
} else if (LocalSysTime.wMonth == 6 && LocalSysTime.wDay == 1) {
splashIndex = eSplashHappyBirthdayNotch;
} else if (LocalSysTime.wMonth == 12 &&
LocalSysTime.wDay == 24) // the Java game shows this on
// Christmas Eve, so we will too
{
splashIndex = eSplashMerryXmas;
} else if (LocalSysTime.wMonth == 1 && LocalSysTime.wDay == 1) {
splashIndex = eSplashHappyNewYear;
}
splash = splashes.at(splashIndex);
}
void TitleScreen::tick() {
vo += 1.0f;
// if( vo > 100.0f ) minecraft->setScreen(new SelectWorldScreen(this));
// // 4J - temp testing
}
void TitleScreen::keyPressed(wchar_t eventCharacter, int eventKey) {}
void TitleScreen::init() {
app.DebugPrintf("TitleScreen::init() START\n");
// 4jcraft: this is for the blured panorama background
viewportTexture =
minecraft->textures->getTexture(new BufferedImage(256, 256, 2));
/* 4J - removed
Calendar c = Calendar.getInstance();
c.setTime(new Date());
if (c.get(Calendar.MONTH) + 1 == 11 && c.get(Calendar.DAY_OF_MONTH) == 9) {
splash = "Happy birthday, ez!";
} else if (c.get(Calendar.MONTH) + 1 == 6 && c.get(Calendar.DAY_OF_MONTH) == 1)
{ splash = "Happy birthday, Notch!"; } else if (c.get(Calendar.MONTH) + 1 == 12
&& c.get(Calendar.DAY_OF_MONTH) == 24) { splash = "Merry X-mas!"; } else if
(c.get(Calendar.MONTH) + 1 == 1 && c.get(Calendar.DAY_OF_MONTH) == 1) { splash =
"Happy new year!";
}
*/
Language* language = Language::getInstance();
const int spacing = 24;
const int topPos = height / 4 + spacing * 2;
buttons.push_back(new Button(1, width / 2 - 100, topPos,
language->getElement(L"menu.singleplayer")));
buttons.push_back(multiplayerButton = new Button(
2, width / 2 - 100, topPos + spacing * 1,
language->getElement(L"menu.multiplayer")));
buttons.push_back(new Button(3, width / 2 - 100, topPos + spacing * 2,
language->getElement(L"menu.mods")));
if (minecraft->appletMode) {
buttons.push_back(new Button(0, width / 2 - 100, topPos + spacing * 3,
language->getElement(L"menu.options")));
} else {
buttons.push_back(new Button(0, width / 2 - 100,
topPos + spacing * 3 + 12, 98, 20,
language->getElement(L"menu.options")));
buttons.push_back(new Button(4, width / 2 + 2,
topPos + spacing * 3 + 12, 98, 20,
language->getElement(L"menu.quit")));
}
if (minecraft->user == nullptr) {
multiplayerButton->active = false;
}
}
void TitleScreen::buttonClicked(Button* button) {
if (button->id == 0) {
app.DebugPrintf(
"TitleScreen::buttonClicked() 'Options...' if (button->id == 0)\n");
minecraft->setScreen(new OptionsScreen(this, minecraft->options));
}
if (button->id == 1) {
app.DebugPrintf(
"TitleScreen::buttonClicked() 'Singleplayer' if (button->id == "
"1)\n");
minecraft->setScreen(new SelectWorldScreen(this));
}
if (button->id == 2) {
app.DebugPrintf(
"TitleScreen::buttonClicked() 'Multiplayer' if (button->id == "
"2)\n");
minecraft->setScreen(new JoinMultiplayerScreen(this));
}
if (button->id == 3) {
app.DebugPrintf(
"TitleScreen::buttonClicked() 'Texture Pack' if (button->id == "
"3)\n");
// minecraft->setScreen(new TexturePackSelectScreen(this));
// // 4J - TODO put back in
}
if (button->id == 4) {
app.DebugPrintf(
"TitleScreen::buttonClicked() Exit Game if (button->id == 4)\n");
RenderManager.Close(); // minecraft->stop();
}
}
// 4jcraft: render our panorama
// uses the TU panorama instead of JE panorama and as such a different rendering
// method
void TitleScreen::renderPanorama(float a) {
#ifdef ENABLE_JAVA_GUIS
Tesselator* t = Tesselator::getInstance();
#ifdef CLASSIC_PANORAMA
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
gluPerspective(120.0f, 1.0f, 0.05f, 10.0f);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glRotatef(180.0f, 1.0f, 0.0f, 0.0f);
glEnable(GL_BLEND);
glDisable(GL_ALPHA_TEST);
glDisable(GL_CULL_FACE);
glDepthMask(false);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
char offsetPasses = 8;
for (int i = 0; i < (offsetPasses * offsetPasses); i++) {
glPushMatrix();
float x =
((float)(i % offsetPasses) / (float)offsetPasses - 0.5f) / 64.0f;
float y =
((float)(i / offsetPasses) / (float)offsetPasses - 0.5f) / 64.0f;
float z = 0.0f;
glTranslatef(x, y, z);
glRotatef(sin((vo + a) / 400.0f) * 25.0f + 20.0f, 1.0f, 0.0f, 0.0f);
glRotatef(-(vo + a) * 0.1f, 0.0f, 1.0f, 0.0f);
for (int j = 0; j < 6; j++) {
glPushMatrix();
switch (j) {
case 1:
glRotatef(90.0f, 0.0f, 1.0f, 0.0f);
break;
case 2:
glRotatef(180.0f, 0.0f, 1.0f, 0.0f);
break;
case 3:
glRotatef(-90.0f, 0.0f, 1.0f, 0.0f);
break;
case 4:
glRotatef(90.0f, 1.0f, 0.0f, 0.0f);
break;
case 5:
glRotatef(-90.0f, 1.0f, 0.0f, 0.0f);
break;
default:
break;
}
glBindTexture(GL_TEXTURE_2D, minecraft->textures->loadTexture(
TN_TITLE_BG_PANORAMA0 + j));
t->begin();
t->color(16777215, 255 / (i + 1));
t->vertexUV(-1.0f, -1.0f, 1.0f, 0.0f, 0.0f);
t->vertexUV(1.0f, -1.0f, 1.0f, 1.0f, 0.0f);
t->vertexUV(1.0f, 1.0f, 1.0f, 1.0f, 1.0f);
t->vertexUV(-1.0f, 1.0f, 1.0f, 0.0f, 1.0f);
t->end();
glPopMatrix();
}
glPopMatrix();
glColorMask(true, true, true, false);
}
t->offset(0.0f, 0.0f, 0.0f);
glColorMask(true, true, true, true);
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glDepthMask(true);
glEnable(GL_CULL_FACE);
glEnable(GL_ALPHA_TEST);
glEnable(GL_DEPTH_TEST);
#else
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0, width, height, 0, 1000, 3000);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glTranslatef(0, 0, -2000);
glDisable(GL_LIGHTING);
glDisable(GL_FOG);
glEnable(GL_TEXTURE_2D);
glDisable(GL_ALPHA_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDepthMask(false);
glBindTexture(GL_TEXTURE_2D,
minecraft->textures->loadTexture(TN_TITLE_BG_PANORAMA));
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
float off = vo * 0.0004f;
float screenAspect = (float)width / (float)height;
float texAspect = 1748.0f / 144.0f;
float scale;
if (screenAspect > texAspect) {
scale = (float)width / 1748.0f;
} else {
scale = (float)height / 144.0f;
}
float texWidth = 1748.0f * scale;
float texHeight = 144.0f * scale;
float yOff = (height - texHeight) / 2.0f;
float uMax = off + (texWidth / 1748.0f);
t->begin(GL_QUADS);
t->color(0xffffff, 255);
t->vertexUV(0, yOff + texHeight, 0, off, 1.0f);
t->vertexUV(texWidth, yOff + texHeight, 0, uMax, 1.0f);
t->vertexUV(texWidth, yOff, 0, uMax, 0.0f);
t->vertexUV(0, yOff, 0, off, 0.0f);
t->end();
glDepthMask(true);
glDisable(GL_BLEND);
glEnable(GL_ALPHA_TEST);
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
#endif
#endif
}
// 4jcraft
void TitleScreen::renderSkybox(float a) {
#ifdef ENABLE_JAVA_GUIS
#ifdef CLASSIC_PANORAMA
glViewport(0, 0, 256, 256);
#endif
renderPanorama(a);
#ifdef CLASSIC_PANORAMA
glDisable(GL_TEXTURE_2D);
glEnable(GL_TEXTURE_2D);
for (int i = 0; i < 8; i++) {
rotateAndBlur(a);
}
glViewport(0, 0, minecraft->width, minecraft->height);
Tesselator* t = Tesselator::getInstance();
t->begin();
float aspect =
width > height ? 120.0f / (float)width : 120.0f / (float)height;
float sWidth = (float)height * aspect / 256.0f;
float sHeight = (float)width * aspect / 256.0f;
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
t->color(1.0f, 1.0f, 1.0f, 1.0f);
t->vertexUV(0.0f, height, 0.0f, (0.5f - sWidth), (0.5f + sHeight));
t->vertexUV(width, height, 0.0f, (0.5f - sWidth), (0.5f - sHeight));
t->vertexUV(width, 0.0f, 0.0f, (0.5f + sWidth), (0.5f - sHeight));
t->vertexUV(0.0f, 0.0f, 0.0f, (0.5f + sWidth), (0.5f + sHeight));
t->end();
#endif
#endif
}
// 4jcraft
void TitleScreen::rotateAndBlur(float a) {
#if defined(ENABLE_JAVA_GUIS) && defined(CLASSIC_PANORAMA)
glBindTexture(GL_TEXTURE_2D, viewportTexture);
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, 256, 256);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColorMask(true, true, true, false);
Tesselator* t = Tesselator::getInstance();
t->begin();
char blurPasses = 3;
for (int i = 0; i < blurPasses; i++) {
t->color(1.0f, 1.0f, 1.0f, 1.0f / (float)(i + 1));
float offset = (float)(i - blurPasses / 2) / 256.0f;
t->vertexUV(width, height, 0.0f, (0.0f + offset), 0.0f);
t->vertexUV(width, 0.0f, 0.0f, (1.0f + offset), 0.0f);
t->vertexUV(0.0f, 0.0f, 0.0f, (1.0f + offset), 1.0f);
t->vertexUV(0.0f, height, 0.0f, (0.0f + offset), 1.0f);
}
t->end();
glColorMask(true, true, true, true);
#endif
}
void TitleScreen::render(int xm, int ym, float a) {
#ifdef ENABLE_JAVA_GUIS
// 4jcraft: panorama
renderSkybox(a);
Tesselator* t = Tesselator::getInstance();
int logoWidth = 155 + 119;
int logoX = width / 2 - logoWidth / 2;
int logoY = 30;
// 4jcraft: gradient for classic panorama
#ifdef CLASSIC_PANORAMA
fillGradient(0, 0, width, height, -2130706433, 16777215);
fillGradient(0, 0, width, height, 0, INT_MIN);
#endif
glBindTexture(GL_TEXTURE_2D,
minecraft->textures->loadTexture(TN_TITLE_MCLOGO));
glColor4f(1, 1, 1, 1);
blit(logoX + 0, logoY + 0, 0, 0, 155, 44);
blit(logoX + 155, logoY + 0, 0, 45, 155, 44);
t->color(0xffffff);
glPushMatrix();
glTranslatef((float)width / 2 + 90, 70, 0);
glRotatef(-20, 0, 0, 1);
float sss = 1.8f - Mth::abs(Mth::sin(System::currentTimeMillis() % 1000 /
1000.0f * PI * 2) *
0.1f);
sss = sss * 100 / (font->width(splash) + 8 * 4);
glScalef(sss, sss, sss);
drawCenteredString(font, splash, 0, -8, 0xffff00);
glPopMatrix();
drawString(
font, ClientConstants::VERSION_STRING, 2, height - 10,
0xffffff); // 4jcraft: use the same height as the copyright message
wstring msg = L"Copyright Mojang AB. Do not distribute.";
drawString(font, msg, width - font->width(msg) - 2, height - 10, 0xffffff);
Screen::render(xm, ym, a);
#endif
}
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