Esempio n. 1
0
static inline void DrawCollisionVolume(const CollisionVolume* vol)
{
	static unsigned int listIDs[3] = {0, 0, 0};

	switch (vol->GetVolumeType()) {
		case CollisionVolume::COLVOL_TYPE_FOOTPRINT:
			// fall through, this is too hard to render correctly so just render sphere :)
		case CollisionVolume::COLVOL_TYPE_SPHERE:
			// fall through, sphere is special case of ellipsoid
		case CollisionVolume::COLVOL_TYPE_ELLIPSOID: {
			// scaled sphere: radius, slices, stacks
			glTranslatef(vol->GetOffset(0), vol->GetOffset(1), vol->GetOffset(2));
			glScalef(vol->GetHScale(0), vol->GetHScale(1), vol->GetHScale(2));
			glWireSphere(&listIDs[0], 20, 20);
		} break;
		case CollisionVolume::COLVOL_TYPE_CYLINDER: {
			// scaled cylinder: base-radius, top-radius, height, slices, stacks
			//
			// (cylinder base is drawn at unit center by default so add offset
			// by half major axis to visually match the mathematical situation,
			// height of the cylinder equals the unit's full major axis)
			switch (vol->GetPrimaryAxis()) {
				case CollisionVolume::COLVOL_AXIS_X: {
					glTranslatef(-(vol->GetHScale(0)), 0.0f, 0.0f);
					glTranslatef(vol->GetOffset(0), vol->GetOffset(1), vol->GetOffset(2));
					glScalef(vol->GetScale(0), vol->GetHScale(1), vol->GetHScale(2));
					glRotatef( 90.0f, 0.0f, 1.0f, 0.0f);
				} break;
				case CollisionVolume::COLVOL_AXIS_Y: {
					glTranslatef(0.0f, -(vol->GetHScale(1)), 0.0f);
					glTranslatef(vol->GetOffset(0), vol->GetOffset(1), vol->GetOffset(2));
					glScalef(vol->GetHScale(0), vol->GetScale(1), vol->GetHScale(2));
					glRotatef(-90.0f, 1.0f, 0.0f, 0.0f);
				} break;
				case CollisionVolume::COLVOL_AXIS_Z: {
					glTranslatef(0.0f, 0.0f, -(vol->GetHScale(2)));
					glTranslatef(vol->GetOffset(0), vol->GetOffset(1), vol->GetOffset(2));
					glScalef(vol->GetHScale(0), vol->GetHScale(1), vol->GetScale(2));
				} break;
			}

			glWireCylinder(&listIDs[1], 20, 1.0f);
		} break;
		case CollisionVolume::COLVOL_TYPE_BOX: {
			// scaled cube: length, width, height
			glTranslatef(vol->GetOffset(0), vol->GetOffset(1), vol->GetOffset(2));
			glScalef(vol->GetScale(0), vol->GetScale(1), vol->GetScale(2));
			glWireCube(&listIDs[2]);
		} break;
	}
}
static inline void DrawCollisionVolume(const CollisionVolume* vol)
{
	glPushMatrix();

	switch (vol->GetVolumeType()) {
		case CollisionVolume::COLVOL_TYPE_ELLIPSOID:
		case CollisionVolume::COLVOL_TYPE_SPHERE: {
			// scaled sphere is special case of ellipsoid: radius, slices, stacks
			glTranslatef(vol->GetOffset(0), vol->GetOffset(1), vol->GetOffset(2));
			glScalef(vol->GetHScale(0), vol->GetHScale(1), vol->GetHScale(2));
			glWireSphere(&volumeDisplayListIDs[0], 20, 20);
		} break;
		case CollisionVolume::COLVOL_TYPE_CYLINDER: {
			// scaled cylinder: base-radius, top-radius, height, slices, stacks
			//
			// (cylinder base is drawn at unit center by default so add offset
			// by half major axis to visually match the mathematical situation,
			// height of the cylinder equals the unit's full major axis)
			switch (vol->GetPrimaryAxis()) {
				case CollisionVolume::COLVOL_AXIS_X: {
					glTranslatef(-(vol->GetHScale(0)), 0.0f, 0.0f);
					glTranslatef(vol->GetOffset(0), vol->GetOffset(1), vol->GetOffset(2));
					glScalef(vol->GetScale(0), vol->GetHScale(1), vol->GetHScale(2));
					glRotatef( 90.0f, 0.0f, 1.0f, 0.0f);
				} break;
				case CollisionVolume::COLVOL_AXIS_Y: {
					glTranslatef(0.0f, -(vol->GetHScale(1)), 0.0f);
					glTranslatef(vol->GetOffset(0), vol->GetOffset(1), vol->GetOffset(2));
					glScalef(vol->GetHScale(0), vol->GetScale(1), vol->GetHScale(2));
					glRotatef(-90.0f, 1.0f, 0.0f, 0.0f);
				} break;
				case CollisionVolume::COLVOL_AXIS_Z: {
					glTranslatef(0.0f, 0.0f, -(vol->GetHScale(2)));
					glTranslatef(vol->GetOffset(0), vol->GetOffset(1), vol->GetOffset(2));
					glScalef(vol->GetHScale(0), vol->GetHScale(1), vol->GetScale(2));
				} break;
			}

			glWireCylinder(&volumeDisplayListIDs[1], 20, 1.0f);
		} break;
		case CollisionVolume::COLVOL_TYPE_BOX: {
			// scaled cube: length, width, height
			glTranslatef(vol->GetOffset(0), vol->GetOffset(1), vol->GetOffset(2));
			glScalef(vol->GetScale(0), vol->GetScale(1), vol->GetScale(2));
			glWireCube(&volumeDisplayListIDs[2]);
		} break;
	}

	glPopMatrix();
}