fixes

src/main/java/dev/zprestige/prestige/math/LegacyParticlePhysics.java

@@ -0,0 +1,34 @@
+package dev.zprestige.prestige.math;
+
+import dev.zprestige.prestige.render.MinecraftAccess;
+import dev.zprestige.prestige.world.HitParticlePhysics;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+
+public class LegacyParticlePhysics extends HitParticlePhysics {
+    @Override
+    public void updateMotion(HitParticle particle, boolean physicsEnabled) {
+        if (!physicsEnabled) {
+            this.applyLegacyMotion(particle);
+        } else {
+            if (!this.isPassable(MinecraftAccess.mc.world.getBlockState(BlockPos.ofFloored(particle.pos.x, particle.pos.y, particle.pos.z + particle.velocity.z)))) {
+                particle.velocity = new Vec3d(particle.velocity.x, particle.velocity.y, particle.velocity.z * -0.8);
+            }
+
+            if (!this.isPassable(MinecraftAccess.mc.world.getBlockState(BlockPos.ofFloored(particle.pos.x, particle.pos.y + particle.velocity.y, particle.pos.z)))) {
+                particle.velocity = new Vec3d(particle.velocity.x * 0.999F, particle.velocity.y * -0.6, particle.velocity.z * 0.999F);
+            }
+
+            if (!this.isPassable(MinecraftAccess.mc.world.getBlockState(BlockPos.ofFloored(particle.pos.x + particle.velocity.x, particle.pos.y, particle.pos.z)))) {
+                particle.velocity = new Vec3d(particle.velocity.x * -0.8, particle.velocity.y, particle.velocity.z);
+            }
+
+            this.applyLegacyMotion(particle);
+        }
+    }
+
+    private void applyLegacyMotion(HitParticle particle) {
+        particle.pos = particle.pos.add(particle.velocity);
+        particle.velocity = new Vec3d(particle.velocity.x / 0.999998F, particle.velocity.y - 1.5E-6, particle.velocity.z / 0.999998F);
+    }
+}