void batching_add_point_bitmap(primitive_batch *batch, vertex *position, float rad, float angle, float depth)
{
Assert(batch->get_render_info().prim_type == PRIM_TYPE_POINTS);
float radius = rad;
radius *= 1.41421356f;//1/0.707, becase these are the points of a square or width and height rad
vec3d PNT(position->world);
vec3d fvec;
// get the direction from the point to the eye
vm_vec_sub(&fvec, &View_position, &PNT);
vm_vec_normalize_safe(&fvec);
// move the center of the sprite based on the depth parameter
if ( depth != 0.0f )
vm_vec_scale_add(&PNT, &PNT, &fvec, depth);
batch_vertex new_particle;
vec3d up;
vm_rot_point_around_line(&up, &vmd_y_vector, angle, &vmd_zero_vector, &vmd_z_vector);
new_particle.position = position->world;
new_particle.radius = radius;
new_particle.uvec = up;
batch->add_point_sprite(&new_particle);
}
// add some jitter to a flak gun's aiming direction, take into account range to target so that we're never _too_ far off
// assumes dir is normalized
void flak_jitter_aim(vec3d* dir, float dist_to_target, float weapon_subsys_strength)
{
vec3d rand_twist_pre, rand_twist_post;
matrix temp;
vec3d final_aim;
float error_val;
// get the matrix needed to rotate the base direction to the actual direction
vm_vector_2_matrix(&temp, dir, NULL, NULL);
// error value
error_val = Flak_error + (Flak_error * 0.65f * (1.0f - weapon_subsys_strength));
// scale the rvec by some random value and make it the "pre-twist" value
float rand_dist = frand_range(0.0f, error_val);
// no jitter - so do nothing
if (rand_dist <= 0.0f)
{
return;
}
vm_vec_copy_scale(&rand_twist_pre, &temp.vec.rvec, rand_dist);
// now rotate the twist vector around the x axis (the base aim axis) at a random angle
vm_rot_point_around_line(&rand_twist_post, &rand_twist_pre, fl_radian(359.0f * frand_range(0.0f,
1.0f)), &vmd_zero_vector, dir);
// add the resulting vector to the base aim vector and normalize
final_aim = *dir;
vm_vec_scale(&final_aim, dist_to_target);
vm_vec_add(dir, &final_aim, &rand_twist_post);
vm_vec_normalize(dir);
}
void HudGaugeRadarDradis::drawSweeps()
{
if (sweep_plane == -1)
return;
sweep_percent = (fmod(((float)game_get_overall_frametime() / (float)65536), sweep_duration) / sweep_duration) * PI * 2; // convert to radians from 0 <-> 1
float sweep_perc_z = sweep_percent * -0.5f;
vec3d sweep_a;
vec3d sweep_b;
vec3d sweep_c;
vm_rot_point_around_line(&sweep_a, &vmd_y_vector, sweep_percent, &vmd_zero_vector, &vmd_z_vector); // Sweep line: XZ
vm_rot_point_around_line(&sweep_b, &vmd_y_vector, sweep_percent, &vmd_zero_vector, &vmd_x_vector); // Sweep line: YZ
vm_rot_point_around_line(&sweep_c, &vmd_x_vector, sweep_perc_z, &vmd_zero_vector, &vmd_y_vector); // Sweep line: XY
vm_vec_copy_scale(&sweep_normal_x, &sweep_a, 1.0f);
vm_vec_copy_scale(&sweep_normal_y, &sweep_b, 1.0f);
g3_start_instance_matrix(&vmd_zero_vector, /*&Player_obj->orient*/&vmd_identity_matrix, true);
gr_set_bitmap(sweep_plane, GR_ALPHABLEND_FILTER, GR_BITBLT_MODE_NORMAL, 1.0f);
g3_draw_polygon(&vmd_zero_vector, &sweep_a, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT);
g3_draw_polygon(&vmd_zero_vector, &sweep_b, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT);
g3_draw_polygon(&vmd_zero_vector, &sweep_c, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT);
float rotation = sweep_percent;
vm_rot_point_around_line(&sweep_a, &vmd_y_vector, rotation, &vmd_zero_vector, &vmd_z_vector); // Sweep line: XZ
vm_rot_point_around_line(&sweep_b, &vmd_y_vector, rotation, &vmd_zero_vector, &vmd_x_vector); // Sweep line: YZ
vm_rot_point_around_line(&sweep_c, &vmd_x_vector,sweep_perc_z, &vmd_zero_vector, &vmd_y_vector); // Sweep line: YZ
gr_set_bitmap(sweep_plane, GR_ALPHABLEND_FILTER, GR_BITBLT_MODE_NORMAL);
g3_draw_polygon(&vmd_zero_vector, &sweep_a, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT); // Sweep line: XZ
g3_draw_polygon(&vmd_zero_vector, &sweep_b, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT); // Sweep line: YZ
g3_draw_polygon(&vmd_zero_vector, &sweep_c, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT);
/*int dist = 90;
for(int i = 1; i < dist; i++)
{
float rotation = sweep_percent - (i * RADIANS_PER_DEGREE);
float alpha = (1.0f - (float)((float)i / (float)dist)) * 0.25f;
//if (i < 2)
//alpha = 1.0f;
gr_set_bitmap(sweep_plane, GR_ALPHABLEND_FILTER, GR_BITBLT_MODE_NORMAL, alpha);
vm_rot_point_around_line(&sweep_a, &vmd_y_vector, rotation, &vmd_zero_vector, &vmd_z_vector); // Sweep line: XZ
vm_rot_point_around_line(&sweep_b, &vmd_y_vector, rotation, &vmd_zero_vector, &vmd_x_vector); // Sweep line: YZ
g3_draw_polygon(&vmd_zero_vector, &sweep_a, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT); // Sweep line: XZ
g3_draw_polygon(&vmd_zero_vector, &sweep_b, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT); // Sweep line: YZ
if (i < (dist * 0.5f))
{
vm_rot_point_around_line(&sweep_c, &vmd_x_vector,sweep_perc_z + (i * RADIANS_PER_DEGREE), &vmd_zero_vector, &vmd_y_vector); // Sweep line: YZ
g3_draw_polygon(&vmd_zero_vector, &sweep_c, scale, scale, TMAP_FLAG_TEXTURED | TMAP_HTL_3D_UNLIT);
}
}*/
g3_done_instance(true);
}
void batching_add_bitmap_rotated_internal(primitive_batch *batch, vertex *pnt, float angle, float rad, color *clr, float depth)
{
Assert(batch->get_render_info().prim_type == PRIM_TYPE_TRIS);
float radius = rad;
rad *= 1.41421356f;//1/0.707, becase these are the points of a square or width and height rad
extern float Physics_viewer_bank;
angle -= Physics_viewer_bank;
if ( angle < 0.0f )
angle += PI2;
else if ( angle > PI2 )
angle -= PI2;
vec3d PNT(pnt->world);
vec3d p[4];
vec3d fvec, rvec, uvec;
batch_vertex verts[6];
vm_vec_sub(&fvec, &View_position, &PNT);
vm_vec_normalize_safe(&fvec);
vm_rot_point_around_line(&uvec, &View_matrix.vec.uvec, angle, &vmd_zero_vector, &View_matrix.vec.fvec);
vm_vec_cross(&rvec, &View_matrix.vec.fvec, &uvec);
vm_vec_normalize_safe(&rvec);
vm_vec_cross(&uvec, &View_matrix.vec.fvec, &rvec);
vm_vec_scale_add(&PNT, &PNT, &fvec, depth);
vm_vec_scale_add(&p[0], &PNT, &rvec, rad);
vm_vec_scale_add(&p[2], &PNT, &rvec, -rad);
vm_vec_scale_add(&p[1], &p[2], &uvec, rad);
vm_vec_scale_add(&p[3], &p[0], &uvec, -rad);
vm_vec_scale_add(&p[0], &p[0], &uvec, rad);
vm_vec_scale_add(&p[2], &p[2], &uvec, -rad);
//move all the data from the vecs into the verts
//tri 1
verts[5].position = p[3];
verts[4].position = p[2];
verts[3].position = p[1];
//tri 2
verts[2].position = p[3];
verts[1].position = p[1];
verts[0].position = p[0];
//tri 1
verts[5].tex_coord.u = 0.0f;
verts[5].tex_coord.v = 0.0f;
verts[4].tex_coord.u = 1.0f;
verts[4].tex_coord.v = 0.0f;
verts[3].tex_coord.u = 1.0f;
verts[3].tex_coord.v = 1.0f;
//tri 2
verts[2].tex_coord.u = 0.0f;
verts[2].tex_coord.v = 0.0f;
verts[1].tex_coord.u = 1.0f;
verts[1].tex_coord.v = 1.0f;
verts[0].tex_coord.u = 0.0f;
verts[0].tex_coord.v = 1.0f;
for (int i = 0; i < 6 ; i++) {
verts[i].r = clr->red;
verts[i].g = clr->green;
verts[i].b = clr->blue;
verts[i].a = clr->alpha;
verts[i].radius = radius;
}
batch->add_triangle(&verts[0], &verts[1], &verts[2]);
batch->add_triangle(&verts[3], &verts[4], &verts[5]);
}
void geometry_batcher::draw_bitmap(vertex *pnt, float rad, float angle, float depth)
{
float radius = rad;
rad *= 1.41421356f;//1/0.707, becase these are the points of a square or width and height rad
extern float Physics_viewer_bank;
angle -= Physics_viewer_bank;
if ( angle < 0.0f )
angle += PI2;
else if ( angle > PI2 )
angle -= PI2;
vec3d PNT(pnt->world);
vec3d p[4];
vec3d fvec, rvec, uvec;
vertex *P = &vert[n_to_render * 3];
float *R = &radius_list[n_to_render * 3];
vm_vec_sub(&fvec, &View_position, &PNT);
vm_vec_normalize_safe(&fvec);
vm_rot_point_around_line(&uvec, &View_matrix.vec.uvec, angle, &vmd_zero_vector, &View_matrix.vec.fvec);
vm_vec_cross(&rvec, &View_matrix.vec.fvec, &uvec);
vm_vec_normalize_safe(&rvec);
vm_vec_cross(&uvec, &View_matrix.vec.fvec, &rvec);
vm_vec_scale_add(&PNT, &PNT, &fvec, depth);
vm_vec_scale_add(&p[0], &PNT, &rvec, rad);
vm_vec_scale_add(&p[2], &PNT, &rvec, -rad);
vm_vec_scale_add(&p[1], &p[2], &uvec, rad);
vm_vec_scale_add(&p[3], &p[0], &uvec, -rad);
vm_vec_scale_add(&p[0], &p[0], &uvec, rad);
vm_vec_scale_add(&p[2], &p[2], &uvec, -rad);
//move all the data from the vecs into the verts
//tri 1
g3_transfer_vertex(&P[5], &p[3]);
g3_transfer_vertex(&P[4], &p[2]);
g3_transfer_vertex(&P[3], &p[1]);
//tri 2
g3_transfer_vertex(&P[2], &p[3]);
g3_transfer_vertex(&P[1], &p[1]);
g3_transfer_vertex(&P[0], &p[0]);
//tri 1
P[5].texture_position.u = 0.0f; P[5].texture_position.v = 0.0f;
P[4].texture_position.u = 1.0f; P[4].texture_position.v = 0.0f;
P[3].texture_position.u = 1.0f; P[3].texture_position.v = 1.0f;
//tri 2
P[2].texture_position.u = 0.0f; P[2].texture_position.v = 0.0f;
P[1].texture_position.u = 1.0f; P[1].texture_position.v = 1.0f;
P[0].texture_position.u = 0.0f; P[0].texture_position.v = 1.0f;
for (int i = 0; i < 6 ; i++) {
P[i].r = pnt->r;
P[i].g = pnt->g;
P[i].b = pnt->b;
P[i].a = pnt->a;
R[i] = radius;
}
n_to_render += 2;
}
