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#include "stdafx.h"
#include "..\Minecraft.World\Random.h"
#include "..\Minecraft.World\net.minecraft.world.level.tile.entity.h"
#include "Tesselator.h"
#include "TileEntityRenderDispatcher.h"
#include "Camera.h"
#include "..\Minecraft.World\FloatBuffer.h"
#include "TheEndPortalRenderer.h"
ResourceLocation TheEndPortalRenderer::END_SKY_LOCATION = ResourceLocation(TN_MISC_TUNNEL);
ResourceLocation TheEndPortalRenderer::END_PORTAL_LOCATION = ResourceLocation(TN_MISC_PARTICLEFIELD);
int TheEndPortalRenderer::RANDOM_SEED = 31100;
Random TheEndPortalRenderer::RANDOM = Random(RANDOM_SEED);
void TheEndPortalRenderer::render(shared_ptr<TileEntity> _table, double x, double y, double z, float a, bool setColor, float alpha, bool useCompiled)
{
// 4J Convert as we aren't using a templated class
shared_ptr<TheEndPortalTileEntity> table = dynamic_pointer_cast<TheEndPortalTileEntity>(_table);
float xx = static_cast<float>(tileEntityRenderDispatcher->xPlayer);
float yy = static_cast<float>(tileEntityRenderDispatcher->yPlayer);
float zz = static_cast<float>(tileEntityRenderDispatcher->zPlayer);
glDisable(GL_LIGHTING);
RANDOM.setSeed(RANDOM_SEED);
float hoff = 12 / 16.0f;
for (int i = 0; i < 16; i++)
{
glPushMatrix();
float dist = (16 - (i));
float sscale = 1 / 16.0f;
float br = 1.0f / (dist + 1);
if (i == 0)
{
this->bindTexture(&END_SKY_LOCATION);
br = 0.1f;
dist = 65;
sscale = 1 / 8.0f;
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
if (i == 1)
{
this->bindTexture(&END_PORTAL_LOCATION);
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE);
sscale = 1 / 2.0f;
}
float dd = static_cast<float>(-(y + hoff));
{
float ss1 = (float) (dd + Camera::yPlayerOffs);
float ss2 = (float) (dd + dist + Camera::yPlayerOffs);
float s = ss1 / ss2;
s = static_cast<float>(y + hoff) + s;
glTranslatef(xx, s, zz);
}
// 4J - note that the glTexGeni/glEnable calls don't actually do anything in our opengl wrapper version, everything is currently just inferred from the glTexGen calls.
glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
glTexGeni(GL_Q, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
glTexGen(GL_S, GL_OBJECT_PLANE, getBuffer(1, 0, 0, 0));
glTexGen(GL_T, GL_OBJECT_PLANE, getBuffer(0, 0, 1, 0));
glTexGen(GL_R, GL_OBJECT_PLANE, getBuffer(0, 0, 0, 1));
glTexGen(GL_Q, GL_EYE_PLANE, getBuffer(0, 1, 0, 0));
glEnable(GL_TEXTURE_GEN_S);
glEnable(GL_TEXTURE_GEN_T);
glEnable(GL_TEXTURE_GEN_R);
glEnable(GL_TEXTURE_GEN_Q);
glPopMatrix();
glMatrixMode(GL_TEXTURE);
glPushMatrix();
glLoadIdentity();
glTranslatef(0, System::currentTimeMillis() % 700000 / 700000.0f, 0);
glScalef(sscale, sscale, sscale);
glTranslatef(0.5f, 0.5f, 0);
glRotatef((i * i * 4321 + i * 9) * 2.0f, 0, 0, 1);
glTranslatef(-0.5f, -0.5f, 0);
glTranslatef(-xx, -zz, -yy);
float ss1 = (float) (dd + Camera::yPlayerOffs);
glTranslatef(Camera::xPlayerOffs * dist / ss1, Camera::zPlayerOffs * dist / ss1, -yy);
Tesselator *t = Tesselator::getInstance();
t->useProjectedTexture(true); // 4J added - turns on both the generation of texture coordinates in the vertex shader & perspective divide of the texture coord in the pixel shader
t->begin();
float r = RANDOM.nextFloat() * 0.5f + 0.1f;
float g = RANDOM.nextFloat() * 0.5f + 0.4f;
float b = RANDOM.nextFloat() * 0.5f + 0.5f;
if (i == 0) r = g = b = 1;
t->color(r * br, g * br, b * br, 1.0f);
t->vertex(x, y + hoff, z);
t->vertex(x, y + hoff, z + 1);
t->vertex(x + 1, y + hoff, z + 1);
t->vertex(x + 1, y + hoff, z);
t->end();
t->useProjectedTexture(false); // 4J added
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
}
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_GEN_S);
glDisable(GL_TEXTURE_GEN_T);
glDisable(GL_TEXTURE_GEN_R);
glDisable(GL_TEXTURE_GEN_Q);
glEnable(GL_LIGHTING);
}
TheEndPortalRenderer::TheEndPortalRenderer()
{
lb = MemoryTracker::createFloatBuffer(16);
}
FloatBuffer *TheEndPortalRenderer::getBuffer(float a, float b, float c, float d)
{
lb->clear();
lb->put(a)->put(b)->put(c)->put(d);
lb->flip();
return lb;
}
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