From e1d72e8f3ddf8da23a51587f8a496c05790688c4 Mon Sep 17 00:00:00 2001
From: spatialfree <mail@ethanmerchant.com>
Date: Sun, 24 Nov 2024 13:19:30 -0500
Subject: [PATCH] apply velocity over the frames until hitting box inner walls

---
 src/VFX.cs | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/src/VFX.cs b/src/VFX.cs
index 16efdfe..0942279 100644
--- a/src/VFX.cs
+++ b/src/VFX.cs
@@ -29,6 +29,28 @@ static class VFX
         }
     }
 
+    public static void Frame()
+    {
+        for (int i = 0; i < particles.Length; i++)
+        {
+            Particle particle = particles[i];
+            if (particle.vel.MagnitudeSq > float.Epsilon)
+            {
+                particle.pos += particle.vel * Time.Stepf;
+                float scl_rad = particle.scl * 0.5f * 0.333f;
+                Vec3 next_pos = V.XYZ(
+                    Maths.s_clamp(particle.pos.x, Mono.SD_X - 0.5f - scl_rad),
+                    Maths.s_clamp(particle.pos.y, Mono.SD_Y - 0.5f - scl_rad),
+                    Maths.s_clamp(particle.pos.z, Mono.SD_Z - 0.5f - scl_rad)
+                );
+                if (next_pos.x != particle.pos.x || next_pos.y != particle.pos.y || next_pos.z != particle.pos.z)
+                {
+                    particle.pos = next_pos;
+                    particle.vel = Vec3.Zero;
+                }
+            }
+        }
+    }
 }
 
 public class Particle