EvilEngine/PARE

PARE
Particle Emitter
Type	Base
Source code	xParEmitter.h

Format

A Particle Emitter asset is defined by a xParEmitterAsset struct, which inherits xBaseAsset (Object Asset):

struct xParEmitterAsset : xBaseAsset
{
	unsigned char emit_flags;
	unsigned char emit_type;
	unsigned short pad;
	unsigned int propID;
	union
	{
		xPECircle e_circle;
		_tagEmitSphere e_sphere;
		_tagEmitRect e_rect;
		_tagEmitLine e_line;
		_tagEmitVolume e_volume;
		_tagEmitOffsetPoint e_offsetp;
		xPEVCyl e_vcyl;
		xPEEntBone e_entbone;
		xPEEntBound e_entbound;
	};
	unsigned int attachToID;
	xVec3 pos;
	xVec3 vel;
	float vel_angle_variation;
	unsigned int cull_mode;
	float cull_dist_sqr;
};

• emit_flags
  • 0x1 - On/Off?
• emit_type
  • Point (0)
  • Circle Edge (1)
  • Circle (2)
  • Rect Edge (3)
  • Rect (4)
  • Line (5)
  • Volume (6)
  • Sphere Edge (7)
  • Sphere (8)
  • Offset Point (9)
  • Sphere Edge (10)
  • Sphere Edge (11)
  • VCyl Edge (12)
  • OCircle Edge (13)
  • OCircle (14)
  • Entity Bone (15)
  • Entity Bound (16)
• propID is the ID of the Particle Emitter Property asset to use.
• e_circle
• e_sphere
• e_rect
• e_line
• e_volume
• e_offsetp
• e_vcyl
• e_entbone
• e_entbound
• attachToID is the ID of an Object Asset (when emit_type == Entity Bone/Entity Bound?) or Marker (when emit_type == Point?).
• pos is the position of the particle emitter.
• vel
• vel_angle_variation
• cull_mode
• cull_dist_sqr

At the end of the xParEmitterAsset is a list of Links.

struct xPECircle
{
	float radius;
	float deflection;
	xVec3 dir;
};

• radius
• deflection
• dir

struct _tagEmitSphere
{
	float radius;
};

• radius

struct _tagEmitRect
{
	float x_len;
	float z_len;
};

• x_len
• z_len

struct _tagEmitLine
{
	xVec3 pos1;
	xVec3 pos2;
	float radius;
};

• pos1
• pos2
• radius

struct _tagEmitVolume
{
	unsigned int emit_volumeID;
};

• emit_volumeID

struct _tagEmitOffsetPoint
{
	xVec3 offset;
};

• offset

struct xPEVCyl
{
	float height;
	float radius;
	float deflection;
};

• height
• radius
• deflection

struct xPEEntBone
{
	unsigned char flags;
	unsigned char type;
	unsigned char bone;
	unsigned char pad1;
	xVec3 offset;
	float radius;
	float deflection;
};

• flags
• type
• bone
• offset
• radius
• deflection

struct xPEEntBound
{
	unsigned char flags;
	unsigned char type;
	unsigned char pad1;
	unsigned char pad2;
	float expand;
	float deflection;
};

• flags
• type
• expand
• deflection