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package tectech.rendering.EOH;
import static java.lang.Math.pow;
import net.minecraft.item.ItemStack;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.client.IItemRenderer;
import org.lwjgl.opengl.GL11;
import cpw.mods.fml.client.FMLClientHandler;
public class EOHItemRenderer implements IItemRenderer {
@Override
public boolean handleRenderType(ItemStack item, ItemRenderType type) {
return true;
}
@Override
public boolean shouldUseRenderHelper(ItemRenderType type, ItemStack item, ItemRendererHelper helper) {
return true;
}
@Override
public void renderItem(ItemRenderType type, ItemStack item, Object... data) {
GL11.glPushMatrix();
if (type == ItemRenderType.INVENTORY) GL11.glRotated(180, 0, 1, 0);
else if (type == ItemRenderType.EQUIPPED || type == ItemRenderType.EQUIPPED_FIRST_PERSON) {
GL11.glTranslated(0.5, 0.5, 0.5);
if (type == ItemRenderType.EQUIPPED) GL11.glRotated(90, 0, 1, 0);
}
// Render star stuff.
renderStarLayer(0, EOHTileEntitySR.STAR_LAYER_0, 1.0f);
renderStarLayer(1, EOHTileEntitySR.STAR_LAYER_1, 0.4f);
renderStarLayer(2, EOHTileEntitySR.STAR_LAYER_2, 0.2f);
GL11.glPopMatrix();
}
private void renderStarLayer(int layer, ResourceLocation texture, float alpha) {
// Begin animation.
GL11.glPushMatrix();
// OpenGL settings, not sure exactly what these do.
// Disables lighting, so star is always lit (I think).
GL11.glDisable(GL11.GL_LIGHTING);
// Culls things out of line of sight?
GL11.glEnable(GL11.GL_CULL_FACE);
// Merges colours of the various layers of the star?
GL11.glEnable(GL11.GL_BLEND);
// ???
GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
// Bind animation to layer of star.
FMLClientHandler.instance()
.getClient()
.getTextureManager()
.bindTexture(texture);
// 0.01f magic number to shrink sphere obj down.
// Size obtained from the multis current recipe.
float scale = 0.01f;
// Put each subsequent layer further out.
scale *= pow(1.04f, layer);
// Scale the star up in the x, y and z directions.
GL11.glScalef(scale, scale, scale);
switch (layer) {
case 0 -> GL11.glRotatef(130 + (System.currentTimeMillis() / 64) % 360, 0F, 1F, 1F);
case 1 -> GL11.glRotatef(-49 + (System.currentTimeMillis() / 64) % 360, 1F, 1F, 0F);
case 2 -> GL11.glRotatef(67 + (System.currentTimeMillis() / 64) % 360, 1F, 0F, 1F);
}
// Set colour and alpha (transparency) of the star layer.
GL11.glColor4f(1, 1, 1, alpha);
EOHTileEntitySR.starModel.renderAll();
GL11.glDisable(GL11.GL_BLEND);
GL11.glDepthMask(true);
GL11.glEnable(GL11.GL_LIGHTING);
GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
// Finish animation.
GL11.glPopMatrix();
}
}
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