Minor hotfix not much was changed since

Massive changes

README.md

@@ -4,8 +4,8 @@ mostly a concept in python for falling sand simulation
 i guess the goal is to make a python version of the powder toy which is a falling sand sim
 the code is not finished yet, but i will update it as i go.
 
-Main Features:
+## Main Features
--------------
+
 - Particle Physics
   - Gravity and wind effects
   - Temperature dynamics
@@ -17,7 +17,7 @@ Main Features:
   - Heat transfer between particles
   
 - Special Effects
-  - Fire propagation
+  - Fire propagation sorta
   - Smoke generation
   - Liquid spreading
   
@@ -25,9 +25,9 @@ Main Features:
   - Spatial partitioning grid
   - Dormant particle tracking
   - Batch processing
-  """
+  - Static User Interface
 
-## **Current Features**
+### **Current Features**
 
 | **Working**       | **Partial**                   | **Not Working/Implemented** |
 | ----------------- | ----------------------------- | --------------------------- |
@@ -41,7 +41,7 @@ Main Features:
 |                   | Core Physics and Interactions |                             |
 |                   | Core Rendering System         |                             |
 
-### **Controls**
+#### **Controls**
 
 | Key                 | Action                         |
 | ------------------- | ------------------------------ |

particles.json

@@ -459,6 +459,16 @@
         "liquid": false,
         "solid": false,
         "is_gas": true
+    },
+    "wind": {
+        "name": "Wind",
+        "color": [200, 200, 255, 128],
+        "mass": 0.01,
+        "is_wind": true,
+        "wind_strength": 2.0,
+        "wind_direction": [1, 0],
+        "radius": 50,
+        "special": true
     }
     
 }

rendering.py

@@ -211,6 +211,72 @@ class Rendering:
         return "None"
     
 
+    def draw_wind_overlay(self, wind_zones):
+        wind_surface = pygame.Surface((self.width, self.height), pygame.SRCALPHA)
+        
+        for zone in wind_zones:
+            # Draw wind direction arrows
+            x, y = zone['x'], zone['y']
+            radius = zone['radius']
+            strength = zone['strength']
+            direction = zone['direction']
+            
+            # Draw wind field visualization
+            arrow_color = (0, 150, 255, 100)  # Light blue, semi-transparent
+            arrow_length = strength * 20
+            
+            # Draw main direction arrow
+            end_x = x + direction[0] * arrow_length
+            end_y = y + direction[1] * arrow_length
+            pygame.draw.line(wind_surface, arrow_color, (x, y), (end_x, end_y), 2)
+            
+            # Draw arrow head
+            pygame.draw.circle(wind_surface, arrow_color, (int(x), int(y)), 5)
+        
+        self.screen.blit(wind_surface, (0, 0))
+
+    def draw_pressure_overlay(self, particles, active_particles):
+        pressure_surface = pygame.Surface((self.width, self.height), pygame.SRCALPHA)
+        
+        # Create pressure map
+        for x, y in active_particles:
+            particle = particles[x][y]
+            if particle and hasattr(particle, 'pressure'):
+                # Color gradient based on pressure
+                pressure = particle.pressure
+                if pressure > 0:
+                    color = (255, 0, 0, int(min(pressure * 50, 255)))  # Red for high pressure
+                else:
+                    color = (0, 0, 255, int(min(-pressure * 50, 255)))  # Blue for low pressure
+                    
+                pygame.draw.rect(pressure_surface, color, 
+                            (x * self.particle_size, y * self.particle_size,
+                                self.particle_size, self.particle_size))
+        
+        self.screen.blit(pressure_surface, (0, 0))
+
+
+    def draw_temperature_overlay(self, particles, active_particles):
+        temperature_surface = pygame.Surface((self.width, self.height), pygame.SRCALPHA)
+
+        # Create temperature map
+        for x, y in active_particles:
+            particle = particles[x][y]
+            if particle and hasattr(particle, 'temperature'):
+                # Color gradient based on temperature
+                temperature = particle.temperature
+                if temperature > 0:
+                    color = (255, 0, 0, int(min(temperature * 50, 255)))  # Red for high temperature
+                else:
+                    color = (0, 0, 255, int(min(-temperature * 50, 255)))  # Blue for low temperature
+
+                pygame.draw.rect(temperature_surface, color,
+                            (x * self.particle_size, y * self.particle_size,
+                                self.particle_size, self.particle_size))
+
+        self.screen.blit(temperature_surface, (0, 0))
+
+        
     def draw_debug_overlay(self, fps, particles): # this is the function that draws the debug overlay
         if engine_settings ['enable_fps']:
             # Draw FPS

sandpypi.py

@@ -143,7 +143,12 @@ def main(): # Main function to run the program
 
         if mouse_down_left and not over_button:
             x, y = pygame.mouse.get_pos()
-            sim.create_particle_circle(x, y)
+            # Check if current particle type is wind or air
+            if sim.current_particle_type not in ['wind', 'air']:
+                sim.create_particle_circle(x, y)
+            else:
+                # Handle wind/air differently
+                sim.add_wind_zone(x, y)
 
         if mouse_down_right:
             x, y = pygame.mouse.get_pos()

settings.py

@@ -23,7 +23,10 @@ engine_settings = {
     'enable_glow': False,
     'enable_gas_effect': True,
     'enable_debug': False,
-    'enable_fps': True
+    'enable_fps': True,
+    'enable_WVisuals': False,
+    'enable_PVisuals': False,
+    'enable_TempVisuals': False,
     # 'settings': True/False
 }
 

sim.py

@@ -93,6 +93,7 @@ class Simulation:
         self.particle_properties = particle_properties
         self.current_particle_type = 'sand'
         self.gravity = 9.8  # m/s^2, adjustable based on the scale of simulation
+        self.wind_zones = []
         self.wind = [0.0, 0.0]  # Global wind vector (x, y)
 
 
@@ -267,10 +268,31 @@ class Simulation:
                 particle.is_gas = False
 
 
+    def add_wind_zone(self, x, y):
+            # Instead of creating particles, store wind zone data
+            wind_zone = {
+                'x': x,
+                'y': y,
+                'radius': 50,
+                'strength': 2.0,
+                'direction': [1, 0]
+            }
+            self.wind_zones.append(wind_zone)
+
+
     def calculate_forces(self, particle, x, y): # this is where we calculate the forces.
         """Calculate net forces acting on a particle."""
         fx, fy = 0.0, 0.0  # Initialize forces
         
+        # Check wind zones
+        for zone in self.wind_zones:
+            dx = x - zone['x']
+            dy = y - zone['y']
+            distance = (dx*dx + dy*dy) ** 0.5
+            if distance <= zone['radius']:
+                fx += zone['direction'][0] * zone['strength'] * (1 - distance/zone['radius'])
+                fy += zone['direction'][1] * zone['strength'] * (1 - distance/zone['radius'])
+
         # Apply wind force
         if particle.is_gas:
             fx += self.wind[0] * 0.5
@@ -680,8 +702,10 @@ class Simulation:
                 
             # physics calculations
             fx, fy = self.calculate_forces(particle, x, y)
-            particle.velocity[0] += (fx / particle.mass) * dt
+                    # Use max() to ensure mass is never zero
-            particle.velocity[1] += (fy / particle.mass) * dt
+            mass = max(particle.mass, 0.001)
+            particle.velocity[0] += (fx / mass) * dt
+            particle.velocity[1] += (fy / mass) * dt
             
             new_x = int(x + particle.velocity[0] * dt)
             new_y = int(y + particle.velocity[1] * dt)