Add ability to introspect the Particle struct

1 files changed, 35 insertions, 0 deletions

diff --git a/src/simulation/Simulation.h b/src/simulation/Simulation.h
index d200106..6a7c733 100644
--- a/src/simulation/Simulation.h
+++ b/src/simulation/Simulation.h
@@ -25,6 +25,22 @@ class Renderer;
 class Gravity;
 class Air;
 
+//Describes fields in structures such as Particle or Element
+struct StructProperty
+{
+	enum PropertyType { ParticleType, Colour, Integer, UInteger, Float, String };
+	std::string Name;
+	PropertyType Type;
+	intptr_t Offset;
+	StructProperty(std::string name, PropertyType type, intptr_t offset):
+		Name(name),
+		Type(type),
+		Offset(offset)
+	{
+		
+	}
+};
+
 struct Particle
 {
 	int type;
@@ -36,6 +52,25 @@ struct Particle
 	int tmp;
 	int tmp2;
 	unsigned int dcolour;
+	/** Returns a list of properties, their type and offset within the structure that can be changed
+	by higher-level processes refering to them by name such as Lua or the property tool **/
+	std::vector<StructProperty> GetProperties()
+	{
+		std::vector<StructProperty> properties;
+		properties.push_back(StructProperty("type", StructProperty::ParticleType, offsetof(Particle, type)));
+		properties.push_back(StructProperty("life", StructProperty::ParticleType, offsetof(Particle, life)));
+		properties.push_back(StructProperty("ctype", StructProperty::ParticleType, offsetof(Particle, ctype)));
+		properties.push_back(StructProperty("x", StructProperty::Float, offsetof(Particle, x)));
+		properties.push_back(StructProperty("y", StructProperty::Float, offsetof(Particle, y)));
+		properties.push_back(StructProperty("vx", StructProperty::Float, offsetof(Particle, vx)));
+		properties.push_back(StructProperty("vy", StructProperty::Float, offsetof(Particle, vy)));
+		properties.push_back(StructProperty("temp", StructProperty::Float, offsetof(Particle, temp)));
+		properties.push_back(StructProperty("flags", StructProperty::UInteger, offsetof(Particle, flags)));
+		properties.push_back(StructProperty("tmp", StructProperty::Integer, offsetof(Particle, tmp)));
+		properties.push_back(StructProperty("tmp2", StructProperty::Integer, offsetof(Particle, tmp2)));
+		properties.push_back(StructProperty("dcolour", StructProperty::UInteger, offsetof(Particle, dcolour)));
+		return properties;
+	}
 };
 typedef struct Particle Particle;