Initial commit

1 files changed, 131 insertions, 0 deletions

diff --git a/Minecraft.Client/PaintingRenderer.cpp b/Minecraft.Client/PaintingRenderer.cpp
new file mode 100644
index 00000000..4238f759
--- /dev/null
+++ b/Minecraft.Client/PaintingRenderer.cpp
@@ -0,0 +1,131 @@
+#include "stdafx.h"
+#include "PaintingRenderer.h"
+#include "entityRenderDispatcher.h"
+#include "..\Minecraft.World\net.minecraft.world.entity.h"
+#include "..\Minecraft.World\net.minecraft.world.level.h"
+#include "..\Minecraft.World\Random.h"
+#include "..\Minecraft.World\Mth.h"
+
+PaintingRenderer::PaintingRenderer()
+{
+	random = new Random();
+}
+
+void PaintingRenderer::render(shared_ptr<Entity> _painting, double x, double y, double z, float rot, float a)
+{
+	// 4J - dynamic cast required because we aren't using templates/generics in our version
+	shared_ptr<Painting> painting = dynamic_pointer_cast<Painting>(_painting);
+	
+    random->setSeed(187);
+
+    glPushMatrix();
+    glTranslatef((float)x, (float)y, (float)z);
+    glRotatef(rot, 0, 1, 0);
+    glEnable(GL_RESCALE_NORMAL);
+    bindTexture(TN_ART_KZ);	// 4J was L"/art/kz.png"
+
+    Painting::Motive *motive = painting->motive;
+
+    float s = 1 / 16.0f;
+    glScalef(s, s, s);
+    renderPainting(painting, motive->w, motive->h, motive->uo, motive->vo);
+    glDisable(GL_RESCALE_NORMAL);
+    glPopMatrix();
+}
+
+void PaintingRenderer::renderPainting(shared_ptr<Painting> painting, int w, int h, int uo, int vo)
+{
+    float xx0 = -w / 2.0f;
+    float yy0 = -h / 2.0f;
+
+    float z0 = -0.5f;
+    float z1 = +0.5f;
+
+    for (int xs = 0; xs < w / 16; xs++)
+        for (int ys = 0; ys < h / 16; ys++)
+		{
+            float x0 = xx0 + (xs + 1) * 16;
+            float x1 = xx0 + (xs) * 16;
+            float y0 = yy0 + (ys + 1) * 16;
+            float y1 = yy0 + (ys) * 16;
+
+            setBrightness(painting, (x0 + x1) / 2, (y0 + y1) / 2);
+
+            float fu0 = (uo + w - (xs) * 16) / 256.0f;
+            float fu1 = (uo + w - (xs + 1) * 16) / 256.0f;
+            float fv0 = (vo + h - (ys) * 16) / 256.0f;
+            float fv1 = (vo + h - (ys + 1) * 16) / 256.0f;
+
+            float bu0 = (12 * 16) / 256.0f;
+            float bu1 = (12 * 16 + 16) / 256.0f;
+            float bv0 = (0) / 256.0f;
+            float bv1 = (0 + 16) / 256.0f;
+
+            float uu0 = (12 * 16) / 256.0f;
+            float uu1 = (12 * 16 + 16) / 256.0f;
+            float uv0 = (0.5f) / 256.0f;
+            float uv1 = (0.5f) / 256.0f;
+
+            float su0 = (12 * 16 + 0.5f) / 256.0f;
+            float su1 = (12 * 16 + 0.5f) / 256.0f;
+            float sv0 = (0) / 256.0f;
+            float sv1 = (0 + 16) / 256.0f;
+
+            Tesselator *t = Tesselator::getInstance();
+            t->begin();
+            t->normal(0, 0, -1);
+            t->vertexUV((float)(x0), (float)( y1), (float)( z0), (float)( fu1), (float)( fv0));
+            t->vertexUV((float)(x1), (float)( y1), (float)( z0), (float)( fu0), (float)( fv0));
+            t->vertexUV((float)(x1), (float)( y0), (float)( z0), (float)( fu0), (float)( fv1));
+            t->vertexUV((float)(x0), (float)( y0), (float)( z0), (float)( fu1), (float)( fv1));
+
+            t->normal(0, 0, 1);
+            t->vertexUV((float)(x0), (float)( y0), (float)( z1), (float)( bu0), (float)( bv0));
+            t->vertexUV((float)(x1), (float)( y0), (float)( z1), (float)( bu1), (float)( bv0));
+            t->vertexUV((float)(x1), (float)( y1), (float)( z1), (float)( bu1), (float)( bv1));
+            t->vertexUV((float)(x0), (float)( y1), (float)( z1), (float)( bu0), (float)( bv1));
+
+            t->normal(0, 1, 0);
+            t->vertexUV((float)(x0), (float)( y0), (float)( z0), (float)( uu0), (float)( uv0));
+            t->vertexUV((float)(x1), (float)( y0), (float)( z0), (float)( uu1), (float)( uv0));
+            t->vertexUV((float)(x1), (float)( y0), (float)( z1), (float)( uu1), (float)( uv1));
+            t->vertexUV((float)(x0), (float)( y0), (float)( z1), (float)( uu0), (float)( uv1));
+
+            t->normal(0, -1, 0);
+            t->vertexUV((float)(x0), (float)( y1), (float)( z1), (float)( uu0), (float)( uv0));
+            t->vertexUV((float)(x1), (float)( y1), (float)( z1), (float)( uu1), (float)( uv0));
+            t->vertexUV((float)(x1), (float)( y1), (float)( z0), (float)( uu1), (float)( uv1));
+            t->vertexUV((float)(x0), (float)( y1), (float)( z0), (float)( uu0), (float)( uv1));
+
+            t->normal(-1, 0, 0);
+            t->vertexUV((float)(x0), (float)( y0), (float)( z1), (float)( su1), (float)( sv0));
+            t->vertexUV((float)(x0), (float)( y1), (float)( z1), (float)( su1), (float)( sv1));
+            t->vertexUV((float)(x0), (float)( y1), (float)( z0), (float)( su0), (float)( sv1));
+            t->vertexUV((float)(x0), (float)( y0), (float)( z0), (float)( su0), (float)( sv0));
+
+            t->normal(1, 0, 0);
+            t->vertexUV((float)(x1), (float)( y0), (float)( z0), (float)( su1), (float)( sv0));
+            t->vertexUV((float)(x1), (float)( y1), (float)( z0), (float)( su1), (float)( sv1));
+            t->vertexUV((float)(x1), (float)( y1), (float)( z1), (float)( su0), (float)( sv1));
+            t->vertexUV((float)(x1), (float)( y0), (float)( z1), (float)( su0), (float)( sv0));
+            t->end();
+        }
+
+}
+
+void PaintingRenderer::setBrightness(shared_ptr<Painting> painting, float ss, float ya)
+{
+    int x = Mth::floor(painting->x);
+    int y = Mth::floor(painting->y + ya/16.0f);
+    int z = Mth::floor(painting->z);
+    if (painting->dir == 0) x = Mth::floor(painting->x + ss/16.0f);
+    if (painting->dir == 1) z = Mth::floor(painting->z - ss/16.0f);
+    if (painting->dir == 2) x = Mth::floor(painting->x - ss/16.0f);
+    if (painting->dir == 3) z = Mth::floor(painting->z + ss/16.0f);
+
+    int col = this->entityRenderDispatcher->level->getLightColor(x, y, z, 0);
+    int u = col % 65536;
+    int v = col / 65536;
+    glMultiTexCoord2f(0, u, v);
+    glColor3f(1, 1, 1);
+}
\ No newline at end of file