renderer soemthing

src/main/java/org/walruslab/kepler/Kepler.java

@@ -3,6 +3,7 @@ package org.walruslab.kepler;
 import net.fabricmc.api.ModInitializer;
 
 public class Kepler implements ModInitializer {
+    public static final String MOD_ID = "kepler";
 
     @Override
     public void onInitialize() {

src/main/java/org/walruslab/kepler/client/KeplerClient.java

@@ -2,15 +2,17 @@ package org.walruslab.kepler.client;
 
 import net.fabricmc.api.ClientModInitializer;
 import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientEntityEvents;
-import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents;
 import net.minecraft.entity.player.PlayerEntity;
-import org.walruslab.kepler.render.TrajectoryRenderer;
+import org.walruslab.kepler.rhythm.hud.render.RhythmHudRenderer;
+import org.walruslab.kepler.trajectory.TrajectoryRenderer;
 
 public class KeplerClient implements ClientModInitializer {
 
     @Override
     public void onInitializeClient() {
         var renderer = new TrajectoryRenderer();
+//        var hudRenderer = new RhythmHudRenderer();
+//        hudRenderer.setupRenderer();
         ClientEntityEvents.ENTITY_LOAD.register((entity, _a) -> {
             if (entity instanceof PlayerEntity) renderer.setupRenderLine((PlayerEntity) entity);
         });

src/main/java/org/walruslab/kepler/rhythm/hud/model/RhythmHudNote.java

@@ -0,0 +1,12 @@
+package org.walruslab.kepler.rhythm.hud.model;
+
+import org.joml.Vector3f;
+
+public record RhythmHudNote(
+        Vector3f color,
+        float angle,
+        float distance,
+        float noteStart,
+        float noteEnd
+) {
+}

src/main/java/org/walruslab/kepler/rhythm/hud/render/GuiScreenQuad.java

@@ -0,0 +1,44 @@
+package org.walruslab.kepler.rhythm.hud.render;
+
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import net.minecraft.client.gl.RenderPipelines;
+import net.minecraft.client.gui.ScreenRect;
+import net.minecraft.client.gui.render.state.SimpleGuiElementRenderState;
+import net.minecraft.client.render.VertexConsumer;
+import net.minecraft.client.texture.TextureSetup;
+import net.minecraft.client.util.math.MatrixStack;
+import org.jetbrains.annotations.Nullable;
+import org.joml.Matrix3x2fStack;
+import org.joml.Vector2f;
+import org.joml.Vector4f;
+
+public record GuiScreenQuad(ScreenRect scissorArea, Matrix3x2fStack pose, Vector2f v1, Vector2f v2, Vector2f v3, Vector2f v4, Vector4f color) implements SimpleGuiElementRenderState {
+    @Override
+    public void setupVertices(VertexConsumer vertices, float depth) {
+        vertices.vertex(pose, v1.x, v1.y, depth).color(color.x, color.y, color.z, color.w);
+        vertices.vertex(pose, v2.x, v2.y, depth).color(color.x, color.y, color.z, color.w);
+        vertices.vertex(pose, v3.x, v3.y, depth).color(color.x, color.y, color.z, color.w);
+        vertices.vertex(pose, v4.x, v4.y, depth).color(color.x, color.y, color.z, color.w);
+    }
+
+    @Override
+    public RenderPipeline pipeline() {
+        return RenderPipelines.GUI;
+    }
+
+    @Override
+    public TextureSetup textureSetup() {
+        return TextureSetup.empty();
+    }
+
+    @Override
+    public @Nullable ScreenRect bounds() {
+        var minX = (int) Math.min(Math.min(v1.x, v2.x), Math.min(v3.x, v4.x));
+        var maxX = (int) Math.max(Math.max(v1.x, v2.x), Math.max(v3.x, v4.x));
+
+        var minY = (int) Math.min(Math.min(v1.y, v2.y), Math.min(v3.y, v4.y));
+        var maxY = (int) Math.max(Math.max(v1.y, v2.y), Math.max(v3.y, v4.y));
+
+        return new ScreenRect(minX, minY, maxX - minX, maxY - minY);
+    }
+}

src/main/java/org/walruslab/kepler/rhythm/hud/render/RhythmHudRenderer.java

@@ -0,0 +1,61 @@
+package org.walruslab.kepler.rhythm.hud.render;
+
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import net.fabricmc.fabric.api.client.rendering.v1.hud.HudElementRegistry;
+import net.minecraft.client.gl.RenderPipelines;
+import net.minecraft.client.gui.DrawContext;
+import net.minecraft.client.gui.ScreenRect;
+import net.minecraft.client.gui.render.state.SimpleGuiElementRenderState;
+import net.minecraft.client.render.*;
+import net.minecraft.client.texture.TextureSetup;
+import net.minecraft.util.Identifier;
+import org.jetbrains.annotations.Nullable;
+import org.walruslab.kepler.Kepler;
+import org.walruslab.kepler.rhythm.hud.model.RhythmHudNote;
+
+import java.util.List;
+
+public class RhythmHudRenderer {
+    public void setupRenderer() {
+        HudElementRegistry.addLast(Identifier.of(Kepler.MOD_ID, "minco_hud"), this::handleRenderCallback);
+    }
+
+    private void handleRenderCallback(DrawContext drawContext, RenderTickCounter tickCounter) {
+        System.out.println("asdf");
+        var mats = drawContext.getMatrices();
+
+        drawContext.state.addSimpleElement(new SimpleGuiElementRenderState() {
+            @Override
+            public @Nullable ScreenRect bounds() {
+                return new ScreenRect(10, 10, 50, 60);
+            }
+
+            @Override
+            public void setupVertices(VertexConsumer vertices, float depth) {
+                vertices.vertex(mats, 20.0f, 10.0f, depth).color(1.0f, 1.0f, 1.0f, 0.5f);
+                vertices.vertex(mats, 10.0f, 20.0f, depth).color(1.0f, 1.0f, 1.0f, 0.5f);
+                vertices.vertex(mats, 20.0f, 30.0f, depth).color(1.0f, 1.0f, 1.0f, 0.5f);
+                vertices.vertex(mats, 30.0f, 20.0f, depth).color(1.0f, 1.0f, 1.0f, 0.5f);
+            }
+
+            @Override
+            public RenderPipeline pipeline() {
+                return RenderPipelines.GUI;
+            }
+
+            @Override
+            public TextureSetup textureSetup() {
+                return TextureSetup.empty();
+            }
+
+            @Override
+            public @Nullable ScreenRect scissorArea() {
+                return drawContext.scissorStack.peekLast();
+            }
+        });
+    }
+
+    public void renderHud(List<RhythmHudNote> state) {
+
+    }
+}

src/main/java/org/walruslab/kepler/trajectory/ParallelTrajectoryManager.java

@@ -1,9 +1,7 @@
-package org.walruslab.kepler.render;
+package org.walruslab.kepler.trajectory;
 
 import net.minecraft.entity.projectile.ArrowEntity;
 import org.jetbrains.annotations.Nullable;
-import org.walruslab.kepler.trajectory.Trajectory;
-import org.walruslab.kepler.trajectory.TrajectoryHit;
 
 import java.util.ArrayList;
 import java.util.List;

src/main/java/org/walruslab/kepler/trajectory/TrajectoryRenderer.java

@@ -1,4 +1,4 @@
-package org.walruslab.kepler.render;
+package org.walruslab.kepler.trajectory;
 
 import com.mojang.blaze3d.opengl.GlStateManager;
 import com.mojang.blaze3d.vertex.VertexFormat;
@@ -21,7 +21,6 @@ import net.minecraft.util.math.Vec3d;
 import net.minecraft.util.math.Vec3i;
 import org.joml.Vector3f;
 import org.lwjgl.opengl.GL11;
-import org.walruslab.kepler.trajectory.TrajectoryHit;
 import org.walruslab.kepler.trajectory.item.ShootableItemFactory;
 
 import java.util.List;