From 0b67b70cad54029d4c186e897148a242189e06ee Mon Sep 17 00:00:00 2001
From: Moritz Zwerger <bixilon@bixilon.de>
Date: Thu, 19 Oct 2023 11:58:03 +0200
Subject: [PATCH] skeletal: require at least 2 keyframes

---
 .../animations/animators/keyframes/types/RotateKeyframe.kt    | 4 ++++
 .../animations/animators/keyframes/types/ScaleKeyframe.kt     | 4 ++++
 .../animations/animators/keyframes/types/TranslateKeyframe.kt | 4 ++++
 3 files changed, 12 insertions(+)

diff --git a/src/main/java/de/bixilon/minosoft/gui/rendering/skeletal/model/animations/animators/keyframes/types/RotateKeyframe.kt b/src/main/java/de/bixilon/minosoft/gui/rendering/skeletal/model/animations/animators/keyframes/types/RotateKeyframe.kt
index 9fc471182..2dc98f822 100644
--- a/src/main/java/de/bixilon/minosoft/gui/rendering/skeletal/model/animations/animators/keyframes/types/RotateKeyframe.kt
+++ b/src/main/java/de/bixilon/minosoft/gui/rendering/skeletal/model/animations/animators/keyframes/types/RotateKeyframe.kt
@@ -29,6 +29,10 @@ data class RotateKeyframe(
 ) : SkeletalKeyframe {
     override val type get() = TYPE
 
+    init {
+        if (data.size < 2) throw IllegalArgumentException("Must have at least 2 keyframes!")
+    }
+
     override fun instance() = object : Vec3KeyframeInstance(data, loop, interpolation) {
         override fun apply(value: Vec3, transform: TransformInstance) {
             transform.value
diff --git a/src/main/java/de/bixilon/minosoft/gui/rendering/skeletal/model/animations/animators/keyframes/types/ScaleKeyframe.kt b/src/main/java/de/bixilon/minosoft/gui/rendering/skeletal/model/animations/animators/keyframes/types/ScaleKeyframe.kt
index fa852a71c..e6922f484 100644
--- a/src/main/java/de/bixilon/minosoft/gui/rendering/skeletal/model/animations/animators/keyframes/types/ScaleKeyframe.kt
+++ b/src/main/java/de/bixilon/minosoft/gui/rendering/skeletal/model/animations/animators/keyframes/types/ScaleKeyframe.kt
@@ -28,6 +28,10 @@ data class ScaleKeyframe(
 ) : SkeletalKeyframe {
     override val type get() = TYPE
 
+    init {
+        if (data.size < 2) throw IllegalArgumentException("Must have at least 2 keyframes!")
+    }
+
     override fun instance() = object : Vec3KeyframeInstance(data, loop, interpolation) {
         override fun apply(value: Vec3, transform: TransformInstance) {
             transform.value
diff --git a/src/main/java/de/bixilon/minosoft/gui/rendering/skeletal/model/animations/animators/keyframes/types/TranslateKeyframe.kt b/src/main/java/de/bixilon/minosoft/gui/rendering/skeletal/model/animations/animators/keyframes/types/TranslateKeyframe.kt
index c7298434a..44b69ff7c 100644
--- a/src/main/java/de/bixilon/minosoft/gui/rendering/skeletal/model/animations/animators/keyframes/types/TranslateKeyframe.kt
+++ b/src/main/java/de/bixilon/minosoft/gui/rendering/skeletal/model/animations/animators/keyframes/types/TranslateKeyframe.kt
@@ -28,6 +28,10 @@ data class TranslateKeyframe(
 ) : SkeletalKeyframe {
     override val type get() = TYPE
 
+    init {
+        if (data.size < 2) throw IllegalArgumentException("Must have at least 2 keyframes!")
+    }
+
     override fun instance() = object : Vec3KeyframeInstance(data, loop, interpolation) {
         override fun apply(value: Vec3, transform: TransformInstance) {
             transform.value