Initial commit

1 files changed, 129 insertions, 0 deletions

diff --git a/Minecraft.Client/TheEndPortalRenderer.cpp b/Minecraft.Client/TheEndPortalRenderer.cpp
new file mode 100644
index 00000000..52581579
--- /dev/null
+++ b/Minecraft.Client/TheEndPortalRenderer.cpp
@@ -0,0 +1,129 @@
+#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"
+
+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 = (float) (tileEntityRenderDispatcher->xPlayer);
+	float yy = (float) (tileEntityRenderDispatcher->yPlayer);
+	float zz = (float) (tileEntityRenderDispatcher->zPlayer);
+
+	glDisable(GL_LIGHTING);
+
+	Random random(31100);
+
+	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(TN_MISC_TUNNEL); // 4J was "/misc/tunnel.png"
+			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(TN_MISC_PARTICLEFIELD); // 4J was "/misc/particlefield.png"
+			glEnable(GL_BLEND);
+			glBlendFunc(GL_ONE, GL_ONE);
+			sscale = 1 / 2.0f;
+		}
+
+		float dd = (float) -(y + hoff);
+		{
+			float ss1 = (float) (dd + Camera::yPlayerOffs);
+			float ss2 = (float) (dd + dist + Camera::yPlayerOffs);
+			float s = ss1 / ss2;
+			s = (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;
+}