From aa1e7fa1171b1be92b62005b5fc8fa2cd6ce7f0c Mon Sep 17 00:00:00 2001
From: austin <austin@austinwhoover.com>
Date: Thu, 21 Mar 2024 20:31:12 -0400
Subject: [PATCH] Defer physics overhaul 4 for larger timeblock

---
 docs/src/progress/renderertodo.md             | 22 ++++++++++---------
 .../collision/CollisionEngine.java            | 14 ++++++++++--
 2 files changed, 24 insertions(+), 12 deletions(-)

diff --git a/docs/src/progress/renderertodo.md b/docs/src/progress/renderertodo.md
index 572c1bcf..fd01fb48 100644
--- a/docs/src/progress/renderertodo.md
+++ b/docs/src/progress/renderertodo.md
@@ -182,16 +182,6 @@ Fix Character creation preview not working
 
 # TODO
 
-Fix bad data with human mesh textures not mapping
-
-Clean up main method/class
-
-Include Remotery library
-
-Physics-controlled objects system
-
-Shader library system
- - Abiltiy to include the shader library in individual files (ie implement #include)
 
 Level loading/saving + Basic Editor
  - Spin up voxel level (think arena mode)
@@ -199,6 +189,11 @@ Level loading/saving + Basic Editor
  - Basic editor functionality
    - Menu of types of entities to spawn
    - Button to spawn them at cursor
+
+Physics-controlled objects system
+
+Shader library system
+ - Abiltiy to include the shader library in individual files (ie implement #include)
    
 
 Transvoxel Algorithm
@@ -233,6 +228,13 @@ Light Manager
  - Eventually support spot lights?
  - Point shadows ???
 
+Clean up main method/class
+ - Include Remotery library
+
+gltf Support
+  - Fix bad data with human mesh textures not mapping
+  - Texture loading from gltf file
+
 
 Cellular Automata Fluid Dynamics System
  - Advect force
diff --git a/src/main/java/electrosphere/collision/CollisionEngine.java b/src/main/java/electrosphere/collision/CollisionEngine.java
index e608f5a4..3705719d 100644
--- a/src/main/java/electrosphere/collision/CollisionEngine.java
+++ b/src/main/java/electrosphere/collision/CollisionEngine.java
@@ -60,7 +60,7 @@ import electrosphere.logger.LoggerInterface;
  */
 public class CollisionEngine {
 
-    public static final float ENGINE_STEP_SIZE = 1000.0f / 120.0f;
+    public static final float ENGINE_STEP_SIZE = 0.01f;
     
     //world data that the collision engine leverages for position correction and the like
     CollisionWorldData collisionWorldData;
@@ -68,7 +68,7 @@ public class CollisionEngine {
     //Ode-specific stuff
     private DWorld world;
     private DSpace space;
-    private Semaphore spaceLock = new Semaphore(1);
+    private static Semaphore spaceLock = new Semaphore(1);
     private DJointGroup contactgroup;
 
     private static final int MAX_CONTACTS = 1;		// maximum number of contact points per body
@@ -713,5 +713,15 @@ public class CollisionEngine {
         spaceLock.release();
         return rVal;
     }
+
+    /**
+     * Sets a body to be kinematic (infinite mass, not affected by gravity)
+     * @param body The body to set
+     */
+    protected void setKinematic(DBody body){
+        spaceLock.acquireUninterruptibly();
+        body.setKinematic();
+        spaceLock.release();
+    }
     
 }