From 7064a0b63b0be01c4e2d7dac2c725664fb886bb8 Mon Sep 17 00:00:00 2001
From: vinceh121 <contact@vinceh121.me>
Date: Sun, 24 Sep 2023 04:30:48 +0200
Subject: [PATCH] feat: children models

---
 android/assets/machinegunGuntowers.json       | 27 +++++++++++++-
 .../wanderer/entity/DisplayModel.java         | 35 +++++++++++++++++--
 .../guntower/GuntowerAiController.java        |  1 -
 3 files changed, 58 insertions(+), 5 deletions(-)

diff --git a/android/assets/machinegunGuntowers.json b/android/assets/machinegunGuntowers.json
index 62f4cca..1a8da3b 100644
--- a/android/assets/machinegunGuntowers.json
+++ b/android/assets/machinegunGuntowers.json
@@ -251,7 +251,32 @@
 						1.0,
 						1.0
 					]
-				}
+				},
+				"children": [
+					{
+						"displayModel": "orig/j_guntower01.n/waffe.obj",
+						"displayTexture": "orig/lib/textures/j_guntower2j_guntower_alpha.ktx",
+						"animationChannel": "barrelSpin",
+						"relativeTransform": {
+							"translation": [
+								0.0,
+								3,
+								0.0
+							],
+							"rotation": [
+								0.0,
+								0.0,
+								0.0,
+								1.0
+							],
+							"scale": [
+								1.0,
+								1.0,
+								1.0
+							]
+						}
+					}
+				]
 			}
 		]
 	}
diff --git a/core/src/me/vinceh121/wanderer/entity/DisplayModel.java b/core/src/me/vinceh121/wanderer/entity/DisplayModel.java
index 88b877a..a6e6dc4 100644
--- a/core/src/me/vinceh121/wanderer/entity/DisplayModel.java
+++ b/core/src/me/vinceh121/wanderer/entity/DisplayModel.java
@@ -12,6 +12,7 @@
 import com.badlogic.gdx.graphics.g3d.ModelInstance;
 import com.badlogic.gdx.graphics.g3d.attributes.TextureAttribute;
 import com.badlogic.gdx.math.Matrix4;
+import com.badlogic.gdx.utils.Array;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 
 import me.vinceh121.wanderer.WandererConstants;
@@ -24,6 +25,7 @@ public class DisplayModel {
 	 * This model's transform relative to the entity's
 	 */
 	private final Matrix4 relativeTransform = new Matrix4();
+	private final Array<DisplayModel> children = new Array<>();
 	@JsonIgnore
 	private final Matrix4 absoluteTransform = new Matrix4();
 	private final List<Attribute> textureAttributes = new ArrayList<>();
@@ -52,9 +54,17 @@ public DisplayModel(final DisplayModel from) {
 		this.setDisplayTexture(from.getDisplayTexture());
 		this.setCacheDisplayModel(from.getCacheDisplayModel());
 		this.setAnimationChannel(from.getAnimationChannel());
+
+		for (DisplayModel fromChild : from.getChildren()) {
+			this.children.add(new DisplayModel(fromChild));
+		}
 	}
 
 	public void render(final ModelBatch batch, final Environment env) {
+		for (DisplayModel child : this.children) {
+			child.render(batch, env);
+		}
+
 		if (this.displayModel == null) {
 			return;
 		}
@@ -78,6 +88,7 @@ public void render(final ModelBatch batch, final Environment env) {
 	public void loadDisplayModel() {
 		final Model model = WandererConstants.ASSET_MANAGER.get(this.getDisplayModel(), Model.class);
 		final ModelInstance instance = new ModelInstance(model);
+
 		if (this.displayTexture != null) {
 			final Texture texture = WandererConstants.ASSET_MANAGER.get(this.displayTexture, Texture.class);
 			texture.setFilter(TextureFilter.MipMapLinearLinear, TextureFilter.Linear);
@@ -85,8 +96,13 @@ public void loadDisplayModel() {
 			instance.materials.get(0).set(TextureAttribute.createDiffuse(texture));
 			instance.materials.get(0).set(this.textureAttributes); // this is called set but it's more like add
 		}
+
 		this.setCacheDisplayModel(instance);
 		this.getCacheDisplayModel().transform = this.absoluteTransform;
+
+		for (DisplayModel child : this.children) {
+			child.loadDisplayModel();
+		}
 	}
 
 	public void updateTransform(final Matrix4 entityTrans) {
@@ -97,6 +113,19 @@ public void updateTransform(final Matrix4 entityTrans) {
 		if (this.cacheDisplayModel != null) {
 			this.cacheDisplayModel.transform = this.absoluteTransform;
 		}
+
+		for (DisplayModel child : this.children) {
+			child.updateTransform(this.absoluteTransform);
+		}
+	}
+
+	public Array<DisplayModel> getChildren() {
+		return this.children;
+	}
+
+	public void setChildren(Array<DisplayModel> children) {
+		this.children.clear();
+		this.children.addAll(children);
 	}
 
 	public String getDisplayModel() {
@@ -169,8 +198,8 @@ public Attribute removeTextureAttribute(final int index) {
 
 	@Override
 	public String toString() {
-		return "DisplayModel [relativeTransform=" + this.relativeTransform + ", absoluteTransform=" + this.absoluteTransform
-				+ ", displayModel=" + this.displayModel + ", displayTexture=" + this.displayTexture + ", animationChannel="
-				+ this.animationChannel + "]";
+		return "DisplayModel [relativeTransform=" + this.relativeTransform + ", absoluteTransform="
+				+ this.absoluteTransform + ", displayModel=" + this.displayModel + ", displayTexture="
+				+ this.displayTexture + ", animationChannel=" + this.animationChannel + "]";
 	}
 }
diff --git a/core/src/me/vinceh121/wanderer/guntower/GuntowerAiController.java b/core/src/me/vinceh121/wanderer/guntower/GuntowerAiController.java
index 09bf7e2..ed86c09 100644
--- a/core/src/me/vinceh121/wanderer/guntower/GuntowerAiController.java
+++ b/core/src/me/vinceh121/wanderer/guntower/GuntowerAiController.java
@@ -43,7 +43,6 @@ public void tick(float delta) {
 			.nor();
 
 		final Vector3 newDir = this.target.getLookDirection().slerp(closestDir, this.turnSpeed * delta);
-//		Vector3 newDir = closestDir.cpy();
 		newDir.rotateRad(Vector3.X, MathUtils.HALF_PI);
 
 		final float polar = MathUtilsW.getSphericalPolar(newDir.z);