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* Add functional snow rendering code.

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This commit is contained in:
iProgramInCpp
2023-12-30 18:57:43 +02:00
parent e9da87bfa0
commit 3c382d13b7
6 changed files with 119 additions and 5 deletions
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92
source/client/renderer/GameRenderer.cpp
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@@ -55,6 +55,8 @@ void GameRenderer::_init()
m_lastUpdatedMS = 0;
m_shownFPS = 0;
m_shownChunkUpdates = 0;
m_envTexturePresence = 0;
}
GameRenderer::GameRenderer(Minecraft* pMinecraft) :
@@ -508,20 +510,22 @@ void GameRenderer::renderLevel(float f)
{
glDisable(GL_ALPHA_TEST);
// added by iProgramInCpp - renders the cracks
pLR->renderHit((Player*)pMob, m_pMinecraft->m_hitResult, 0, nullptr, f);
if (m_pMinecraft->getOptions()->m_bBlockOutlines)
pLR->renderHitOutline((Player*)pMob, m_pMinecraft->m_hitResult, 0, nullptr, f);
else
pLR->renderHitSelect((Player*)pMob, m_pMinecraft->m_hitResult, 0, nullptr, f);
// added by iProgramInCpp - renders the cracks
pLR->renderHit((Player*)pMob, m_pMinecraft->m_hitResult, 0, nullptr, f);
glEnable(GL_ALPHA_TEST);
}
// @BUG?
glDisable(GL_FOG);
if (false) // @TODO
renderWeather(f);
if (field_44 == 1.0f)
{
glClear(GL_DEPTH_BUFFER_BIT);
@@ -812,6 +816,86 @@ void GameRenderer::prepareAndRenderClouds(LevelRenderer* pLR, float f)
glMatrixMode(GL_MODELVIEW);
}
void GameRenderer::renderWeather(float f)
{
if (m_envTexturePresence == 0)
{
bool bLoadedSuccessfully =
m_pMinecraft->m_pTextures->loadTexture("snow.png", false) &&
m_pMinecraft->m_pTextures->loadTexture("rain.png", false);
m_envTexturePresence = bLoadedSuccessfully ? 2 : 1;
}
if (m_envTexturePresence == 1)
return;
LocalPlayer* pLP = m_pMinecraft->m_pLocalPlayer;
int bPosX = Mth::floor(pLP->m_pos.x);
int bPosY = Mth::floor(pLP->m_pos.y);
int bPosZ = Mth::floor(pLP->m_pos.z);
Vec3 pos = pLP->getPos(f);
Tesselator& t = Tesselator::instance;
Level* pLevel = m_pMinecraft->m_pLevel;
glDisable(GL_CULL_FACE);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
m_pMinecraft->m_pTextures->loadAndBindTexture("snow.png");
int range = m_pMinecraft->getOptions()->m_bFancyGraphics ? 10 : 5;
for (int currX = bPosX - range; currX <= bPosX + range; currX++)
{
for (int currZ = bPosZ - range; currZ <= bPosZ + range; currZ++)
{
int tsb = pLevel->getTopSolidBlock(currX, currZ);
if (tsb < 0)
tsb = 0;
int minY = bPosY - range;
int maxY = bPosY + range;
if (minY < tsb)
minY = tsb;
if (maxY < tsb)
maxY = tsb;
float offs = 2.0f;
if (minY == maxY)
continue;
m_random.setSeed(currX * currX * 3121 + currX * 45238971 + currZ * currZ * 418711 + currZ * 13761);
float x1 = float(field_C) + f;
float x2 = (float(field_C & 0x1FF) + f) / 512.0f;
float x3 = m_random.nextFloat() + x1 * 0.01f * m_random.nextGaussian();
float x4 = m_random.nextFloat() + x1 * 0.001f * m_random.nextGaussian();
float f1 = float(currX + 0.5f) - pLP->m_pos.x;
float f2 = float(currZ + 0.5f) - pLP->m_pos.z;
float f3 = Mth::sqrt(f1 * f1 + f2 * f2) / float(range);
float f4 = pLevel->getBrightness(currX, 128, currZ);
t.begin();
glColor4f(f4, f4, f4, (1.0f - f3 * f3) * 0.7f);
t.offset(-pos.x, -pos.y, -pos.z);
t.vertexUV(float(currX + 0), float(minY), float(currZ + 0), 0.0f * offs + x3, float(minY) * offs / 8.0f + x2 * offs + x4);
t.vertexUV(float(currX + 1), float(minY), float(currZ + 1), 1.0f * offs + x3, float(minY) * offs / 8.0f + x2 * offs + x4);
t.vertexUV(float(currX + 1), float(maxY), float(currZ + 1), 1.0f * offs + x3, float(maxY) * offs / 8.0f + x2 * offs + x4);
t.vertexUV(float(currX + 0), float(maxY), float(currZ + 0), 0.0f * offs + x3, float(maxY) * offs / 8.0f + x2 * offs + x4);
t.vertexUV(float(currX + 0), float(minY), float(currZ + 1), 0.0f * offs + x3, float(minY) * offs / 8.0f + x2 * offs + x4);
t.vertexUV(float(currX + 1), float(minY), float(currZ + 0), 1.0f * offs + x3, float(minY) * offs / 8.0f + x2 * offs + x4);
t.vertexUV(float(currX + 1), float(maxY), float(currZ + 0), 1.0f * offs + x3, float(maxY) * offs / 8.0f + x2 * offs + x4);
t.vertexUV(float(currX + 0), float(maxY), float(currZ + 1), 0.0f * offs + x3, float(maxY) * offs / 8.0f + x2 * offs + x4);
t.offset(0.0f, 0.0f, 0.0f);
t.draw();
}
}
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glEnable(GL_CULL_FACE);
glDisable(GL_BLEND);
}
void GameRenderer::onGraphicsReset()
{