89 lines
3.9 KiB
Java
89 lines
3.9 KiB
Java
package at.petrak.hex.client;
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import at.petrak.hex.HexUtils;
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import at.petrak.hex.casting.CastingHarness;
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import at.petrak.hex.items.HexItems;
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import com.mojang.blaze3d.vertex.PoseStack;
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import com.mojang.blaze3d.vertex.VertexConsumer;
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import net.minecraft.client.Minecraft;
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import net.minecraft.client.player.LocalPlayer;
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import net.minecraft.client.renderer.MultiBufferSource;
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import net.minecraft.client.renderer.RenderType;
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import net.minecraft.nbt.CompoundTag;
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import net.minecraft.nbt.ListTag;
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import net.minecraft.nbt.LongArrayTag;
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import net.minecraft.nbt.Tag;
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import net.minecraft.world.item.ItemStack;
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import net.minecraft.world.phys.Vec3;
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import net.minecraftforge.client.event.RenderGameOverlayEvent;
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import net.minecraftforge.eventbus.api.SubscribeEvent;
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// https://github.com/gamma-delta/VCC/blob/master/src/main/java/me/gammadelta/client/VCCRenderOverlays.java⌈
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public class HexRenderOverlays {
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@SubscribeEvent
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public static void renderOverlay(RenderGameOverlayEvent e) {
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LocalPlayer player = Minecraft.getInstance().player;
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ItemStack held = player.getMainHandItem();
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if (held.getItem() == HexItems.wand.get()) {
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tryRenderCastOverlay(e, player, held);
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}
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}
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private static void tryRenderCastOverlay(RenderGameOverlayEvent e, LocalPlayer player, ItemStack wand) {
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if (wand.hasTag() && !wand.getTag().isEmpty()) {
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CompoundTag tag = wand.getTag();
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if (tag.contains(CastingHarness.TAG_POINTS)) {
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PoseStack ps = e.getMatrixStack();
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Minecraft mc = Minecraft.getInstance();
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MultiBufferSource.BufferSource buffers = mc.renderBuffers().bufferSource();
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Vec3 camPos = mc.gameRenderer.getMainCamera().getPosition();
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Vec3 eyePos = player.getEyePosition(e.getPartialTicks());
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ps.pushPose();
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ps.translate(camPos.x, camPos.y, camPos.z);
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// comment from when i tried to do this in VCC says I need this
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// the chain of trust goes back to eutro
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// *shudders*
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ps.translate(-eyePos.x, -eyePos.y, -eyePos.z);
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ListTag tagPointBlobs = tag.getList(CastingHarness.TAG_POINTS, Tag.TAG_LIST);
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for (int patIdx = 0; patIdx < tagPointBlobs.size(); patIdx++) {
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ListTag tagPoints = tagPointBlobs.getList(patIdx);
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// Start new line
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VertexConsumer buf = buffers.getBuffer(RenderType.LINES);
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for (int idx = 0; idx < tagPoints.size(); idx++) {
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// getLongArray is borken, who knew
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Vec3 here = HexUtils.deserializeVec3FromNBT(
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((LongArrayTag) tagPoints.get(idx)).getAsLongArray());
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addVertex(ps, buf, here);
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if (idx == tagPoints.size() - 1 &&
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patIdx == tagPointBlobs.size() - 1 &&
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tag.contains(CastingHarness.TAG_PDS) &&
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!tag.getCompound(CastingHarness.TAG_PDS)
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.contains(CastingHarness.PatternDrawState.TAG_BETWEEN_PATTERNS)) {
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// Draw the final line to the player cursor
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VertexConsumer buf1 = buffers.getBuffer(RenderType.LINES);
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addVertex(ps, buf1, player.position().add(player.getLookAngle()));
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}
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}
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}
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ps.popPose();
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buffers.endBatch();
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}
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}
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}
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private static void addVertex(PoseStack ps, VertexConsumer buf, Vec3 vert) {
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buf.vertex(ps.last().pose(), (float) vert.x, (float) vert.y, (float) vert.z)
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.color(128, 128, 255, 255)
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.normal(0.0f, 1.0f, 0.0f)
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.endVertex();
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}
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}
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