TPT: Avoid stacking in INVS and FILT, and fix pressurised INVS graphics

1 files changed, 5 insertions, 1 deletions

diff --git a/src/simulation/Simulation.cpp b/src/simulation/Simulation.cpp
index 87603f2..6477fd4 100644
--- a/src/simulation/Simulation.cpp
+++ b/src/simulation/Simulation.cpp
@@ -2988,6 +2988,7 @@ void Simulation::update_particles_i(int start, int inc)
     							create_part(i, x, y, PT_NBHL);
     							parts[i].temp = MAX_TEMP;
     							parts[i].tmp = pmap_count[y][x]-NPART;//strength of grav field
+    							if (parts[i].tmp>51200) parts[i].tmp = 51200;
     							pmap_count[y][x] = NPART;
     						}
     						else
@@ -4151,7 +4152,10 @@ void Simulation::update_particles()//doesn't update the particles themselves, bu
 					photons[y][x] = t|(i<<8);
 				else
 				{
-					pmap[y][x] = t|(i<<8);
+					// Particles are sometimes allowed to go inside INVS and FILT
+					// To make particles collide correctly when inside these elements, these elements must not overwrite an existing pmap entry from particles inside them
+					if (!pmap[y][x] || (t!=PT_INVIS && t!= PT_FILT))
+						pmap[y][x] = t|(i<<8);
 					pmap_count[y][x]++;
 				}
 			}