Add item renderer for EOH

1 files changed, 97 insertions, 0 deletions

diff --git a/src/main/java/com/github/technus/tectech/thing/item/RenderEyeOfHarmonyItem.java b/src/main/java/com/github/technus/tectech/thing/item/RenderEyeOfHarmonyItem.java
new file mode 100644
index 0000000000..35fc174310
--- /dev/null
+++ b/src/main/java/com/github/technus/tectech/thing/item/RenderEyeOfHarmonyItem.java
@@ -0,0 +1,97 @@
+package com.github.technus.tectech.thing.item;
+
+import static com.github.technus.tectech.thing.block.RenderEyeOfHarmony.*;
+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 RenderEyeOfHarmonyItem 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, STAR_LAYER_0, 1.0f);
+        renderStarLayer(1, STAR_LAYER_1, 0.4f);
+        renderStarLayer(2, 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);
+                break;
+            case 1:
+                GL11.glRotatef(-49 + (System.currentTimeMillis() / 64) % 360, 1F, 1F, 0F);
+                break;
+            case 2:
+                GL11.glRotatef(67 + (System.currentTimeMillis() / 64) % 360, 1F, 0F, 1F);
+                break;
+        }
+
+        // Set colour and alpha (transparency) of the star layer.
+        GL11.glColor4f(1, 1, 1, alpha);
+
+        starModel.renderAll();
+        GL11.glDisable(GL11.GL_BLEND);
+        GL11.glDepthMask(true);
+        GL11.glEnable(GL11.GL_LIGHTING);
+
+        // Finish animation.
+        GL11.glPopMatrix();
+    }
+
+}