Make API functions for enderstorage to use (#2244)

* Make API functions for enderstorage to use

* move it into its own package

src/main/java/com/gtnewhorizons/angelica/api/shaders/ShaderPacks.java

@@ -0,0 +1,31 @@
+package com.gtnewhorizons.angelica.api.shaders;
+
+import com.gtnewhorizons.angelica.config.AngelicaConfig;
+import net.coderbot.iris.uniforms.CapturedRenderingState;
+import net.coderbot.iris.uniforms.SystemTimeUniforms;
+import net.irisshaders.iris.api.v0.IrisApi;
+import net.minecraft.block.Block;
+
+public final class ShaderPacks {
+
+    private ShaderPacks() {}
+
+    public static boolean isInUse() {
+        return AngelicaConfig.enableIris && IrisApi.getInstance().isShaderPackInUse();
+    }
+
+    public static float getFrameTimeCounter() {
+        return SystemTimeUniforms.TIMER.getFrameTimeCounter();
+    }
+
+    public static void beginBlockEntity(Block block, int metadata) {
+        if (!AngelicaConfig.enableIris) return;
+        CapturedRenderingState.INSTANCE.pushCurrentBlockEntity();
+        CapturedRenderingState.INSTANCE.setCurrentBlockEntity(block, metadata);
+    }
+
+    public static void endBlockEntity() {
+        if (!AngelicaConfig.enableIris) return;
+        CapturedRenderingState.INSTANCE.popCurrentBlockEntity();
+    }
+}

src/main/java/com/gtnewhorizons/angelica/api/shaders/package-info.java

@@ -0,0 +1,4 @@
+@API(owner = "angelica", provides = "angelica|shaders", apiVersion = "1")
+package com.gtnewhorizons.angelica.api.shaders;
+
+import cpw.mods.fml.common.API;