void ProjectileSystem::update(ent_ptr<EntityManager> em, ent_ptr<EventManager> events, double dt)
{
for (auto entity : em->entities_with_components<ProjectileComponent, FrameComponent>()) {
ent_ptr<ProjectileComponent> pc = entity.component<ProjectileComponent>();
pc->lifetime -= dt;
if (pc->lifetime < 0) {
entity.destroy();
continue;
}
ent_ptr<PosOrientComponent> poc = entity.component<PosOrientComponent>();
const vector3d vel = pc->baseVel + pc->dirVel;
poc->pos += vel * dt;
//Collide
auto pfc = entity.component<FrameComponent>();
CollisionContact c;
pfc->frame->GetCollisionSpace()->TraceRay(poc->pos, vel.Normalized(), vel.Length(), &c, 0);
Entity* collEnt = static_cast<Entity*>(c.userData1);
if (collEnt && *collEnt != pc->owner) {
Entity clonk = *collEnt;
//auto gc = clonk.component<CollisionMeshComponent>();
//auto fc = clonk.component<FrameComponent>();
//SDL_assert(gc);
//SDL_assert(fc);
//clonk.destroy();
entity.destroy();
}
}
}
vector3d TransferPlanner::GetOffsetVel() const {
if(m_position.ExactlyEqual(vector3d(0., 0., 0.)))
return vector3d(0., 0., 0.);
const vector3d pNormal = m_position.Cross(m_velocity);
return m_dvPrograde * m_velocity.Normalized() +
m_dvNormal * pNormal.Normalized() +
m_dvRadial * m_position.Normalized();
}
static void DrawAtmosphereSurface(Graphics::Renderer *renderer,
const matrix4x4d &modelView, const vector3d &campos, float rad, Graphics::Material *mat)
{
const int LAT_SEGS = 20;
const int LONG_SEGS = 20;
vector3d yaxis = campos.Normalized();
vector3d zaxis = vector3d(1.0,0.0,0.0).Cross(yaxis).Normalized();
vector3d xaxis = yaxis.Cross(zaxis);
const matrix4x4d invrot = matrix4x4d::MakeRotMatrix(xaxis, yaxis, zaxis).InverseOf();
renderer->SetTransform(modelView * matrix4x4d::ScaleMatrix(rad, rad, rad) * invrot);
// what is this? Well, angle to the horizon is:
// acos(planetRadius/viewerDistFromSphereCentre)
// and angle from this tangent on to atmosphere is:
// acos(planetRadius/atmosphereRadius) ie acos(1.0/1.01244blah)
double endAng = acos(1.0/campos.Length())+acos(1.0/rad);
double latDiff = endAng / double(LAT_SEGS);
double rot = 0.0;
float sinCosTable[LONG_SEGS+1][2];
for (int i=0; i<=LONG_SEGS; i++, rot += 2.0*M_PI/double(LONG_SEGS)) {
sinCosTable[i][0] = float(sin(rot));
sinCosTable[i][1] = float(cos(rot));
}
/* Tri-fan above viewer */
Graphics::VertexArray va(Graphics::ATTRIB_POSITION);
va.Add(vector3f(0.f, 1.f, 0.f));
for (int i=0; i<=LONG_SEGS; i++) {
va.Add(vector3f(
sin(latDiff)*sinCosTable[i][0],
cos(latDiff),
-sin(latDiff)*sinCosTable[i][1]));
}
renderer->DrawTriangles(&va, mat, Graphics::TRIANGLE_FAN);
/* and wound latitudinal strips */
double lat = latDiff;
for (int j=1; j<LAT_SEGS; j++, lat += latDiff) {
Graphics::VertexArray v(Graphics::ATTRIB_POSITION);
float cosLat = cos(lat);
float sinLat = sin(lat);
float cosLat2 = cos(lat+latDiff);
float sinLat2 = sin(lat+latDiff);
for (int i=0; i<=LONG_SEGS; i++) {
v.Add(vector3f(sinLat*sinCosTable[i][0], cosLat, -sinLat*sinCosTable[i][1]));
v.Add(vector3f(sinLat2*sinCosTable[i][0], cosLat2, -sinLat2*sinCosTable[i][1]));
}
renderer->DrawTriangles(&v, mat, Graphics::TRIANGLE_STRIP);
}
}
void Ship::FireWeapon(int num)
{
if (m_flightState != FLYING)
return;
std::string prefix(num?"laser_rear_":"laser_front_");
int damage = 0;
Properties().Get(prefix+"damage", damage);
if (!damage)
return;
Properties().PushLuaTable();
LuaTable prop(Lua::manager->GetLuaState(), -1);
const matrix3x3d &m = GetOrient();
const vector3d dir = m * vector3d(m_gun[num].dir);
const vector3d pos = m * vector3d(m_gun[num].pos) + GetPosition();
m_gun[num].temperature += 0.01f;
m_gun[num].recharge = prop.Get<float>(prefix+"rechargeTime");
const vector3d baseVel = GetVelocity();
const vector3d dirVel = prop.Get<float>(prefix+"speed") * dir.Normalized();
const Color c(prop.Get<float>(prefix+"rgba_r"), prop.Get<float>(prefix+"rgba_g"),
prop.Get<float>(prefix+"rgba_b"), prop.Get<float>(prefix+"rgba_a"));
const float lifespan = prop.Get<float>(prefix+"lifespan");
const float width = prop.Get<float>(prefix+"width");
const float length = prop.Get<float>(prefix+"length");
const bool mining = prop.Get<int>(prefix+"mining");
if (prop.Get<int>(prefix+"dual"))
{
const vector3d orient_norm = m.VectorY();
const vector3d sep = 5.0 * dir.Cross(orient_norm).NormalizedSafe();
Projectile::Add(this, lifespan, damage, length, width, mining, c, pos + sep, baseVel, dirVel);
Projectile::Add(this, lifespan, damage, length, width, mining, c, pos - sep, baseVel, dirVel);
} else {
Projectile::Add(this, lifespan, damage, length, width, mining, c, pos, baseVel, dirVel);
}
Sound::BodyMakeNoise(this, "Pulse_Laser", 1.0f);
lua_pop(prop.GetLua(), 1);
LuaEvent::Queue("onShipFiring", this);
}
void Ship::FireWeapon(int num)
{
const ShipType &stype = GetShipType();
if (m_flightState != FLYING) return;
const matrix3x3d &m = GetOrient();
const vector3d dir = m * vector3d(stype.gunMount[num].dir);
const vector3d pos = m * vector3d(stype.gunMount[num].pos) + GetPosition();
m_gunTemperature[num] += 0.01f;
Equip::Type t = m_equipment.Get(Equip::SLOT_LASER, num);
const LaserType < = Equip::lasers[Equip::types[t].tableIndex];
m_gunRecharge[num] = lt.rechargeTime;
vector3d baseVel = GetVelocity();
vector3d dirVel = lt.speed * dir.Normalized();
if (lt.flags & Equip::LASER_DUAL)
{
const ShipType::DualLaserOrientation orient = stype.gunMount[num].orient;
const vector3d orient_norm =
(orient == ShipType::DUAL_LASERS_VERTICAL) ? m.VectorX() : m.VectorY();
const vector3d sep = stype.gunMount[num].sep * dir.Cross(orient_norm).NormalizedSafe();
Projectile::Add(this, t, pos + sep, baseVel, dirVel);
Projectile::Add(this, t, pos - sep, baseVel, dirVel);
}
else
Projectile::Add(this, t, pos, baseVel, dirVel);
/*
// trace laser beam through frame to see who it hits
CollisionContact c;
GetFrame()->GetCollisionSpace()->TraceRay(pos, dir, 10000.0, &c, this->GetGeom());
if (c.userData1) {
Body *hit = static_cast<Body*>(c.userData1);
hit->OnDamage(this, damage);
}
*/
Polit::NotifyOfCrime(this, Polit::CRIME_WEAPON_DISCHARGE);
Sound::BodyMakeNoise(this, "Pulse_Laser", 1.0f);
}
static void MiningLaserSpawnTastyStuff(Frame *f, const SystemBody *asteroid, const vector3d &pos)
{
Equip::Type t;
if (20*Pi::rng.Fixed() < asteroid->GetMetallicity()) {
t = Equip::PRECIOUS_METALS;
} else if (8*Pi::rng.Fixed() < asteroid->GetMetallicity()) {
t = Equip::METAL_ALLOYS;
} else if (Pi::rng.Fixed() < asteroid->GetMetallicity()) {
t = Equip::METAL_ORE;
} else if (Pi::rng.Fixed() < fixed(1,2)) {
t = Equip::WATER;
} else {
t = Equip::RUBBISH;
}
CargoBody *cargo = new CargoBody(t);
cargo->SetFrame(f);
cargo->SetPosition(pos);
const double x = Pi::rng.Double();
vector3d dir = pos.Normalized();
dir.ArbRotate(vector3d(x, 1-x, 0), Pi::rng.Double()-.5);
cargo->SetVelocity(Pi::rng.Double(100.0,200.0) * dir);
Pi::game->GetSpace()->AddBody(cargo);
}
void Camera::DrawSpike(double rad, const vector3d &viewCoords, const matrix4x4d &viewTransform)
{
glPushMatrix();
float znear, zfar;
Render::GetNearFarClipPlane(znear, zfar);
double newdist = znear + 0.5f * (zfar - znear);
double scale = newdist / viewCoords.Length();
glTranslatef(float(scale*viewCoords.x), float(scale*viewCoords.y), float(scale*viewCoords.z));
Render::State::UseProgram(0);
// face the camera dammit
vector3d zaxis = viewCoords.Normalized();
vector3d xaxis = vector3d(0,1,0).Cross(zaxis).Normalized();
vector3d yaxis = zaxis.Cross(xaxis);
matrix4x4d rot = matrix4x4d::MakeInvRotMatrix(xaxis, yaxis, zaxis);
glMultMatrixd(&rot[0]);
glDisable(GL_LIGHTING);
glDisable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
// XXX WRONG. need to pick light from appropriate turd.
GLfloat col[4];
glGetLightfv(GL_LIGHT0, GL_DIFFUSE, col);
glColor4f(col[0], col[1], col[2], 1);
glBegin(GL_TRIANGLE_FAN);
glVertex3f(0,0,0);
glColor4f(col[0], col[1], col[2], 0);
const float spikerad = float(scale*rad);
// bezier with (0,0,0) control points
{
vector3f p0(0,spikerad,0), p1(spikerad,0,0);
float t=0.1f; for (int i=1; i<10; i++, t+= 0.1f) {
vector3f p = (1-t)*(1-t)*p0 + t*t*p1;
glVertex3fv(&p[0]);
}
}
{
vector3f p0(spikerad,0,0), p1(0,-spikerad,0);
float t=0.1f; for (int i=1; i<10; i++, t+= 0.1f) {
vector3f p = (1-t)*(1-t)*p0 + t*t*p1;
glVertex3fv(&p[0]);
}
}
{
vector3f p0(0,-spikerad,0), p1(-spikerad,0,0);
float t=0.1f; for (int i=1; i<10; i++, t+= 0.1f) {
vector3f p = (1-t)*(1-t)*p0 + t*t*p1;
glVertex3fv(&p[0]);
}
}
{
vector3f p0(-spikerad,0,0), p1(0,spikerad,0);
float t=0.1f; for (int i=1; i<10; i++, t+= 0.1f) {
vector3f p = (1-t)*(1-t)*p0 + t*t*p1;
glVertex3fv(&p[0]);
}
}
glEnd();
glDisable(GL_BLEND);
glEnable(GL_LIGHTING);
glEnable(GL_DEPTH_TEST);
glPopMatrix();
}
void Camera::DrawSpike(double rad, const vector3d &viewCoords, const matrix4x4d &viewTransform)
{
// draw twinkly star-thing on faraway objects
// XXX this seems like a good case for drawing in 2D - use projected position, then the
// "face the camera dammit" bits can be skipped
if (!m_renderer) return;
const double newdist = m_zNear + 0.5f * (m_zFar - m_zNear);
const double scale = newdist / viewCoords.Length();
matrix4x4d trans = matrix4x4d::Identity();
trans.Translate(scale*viewCoords.x, scale*viewCoords.y, scale*viewCoords.z);
// face the camera dammit
vector3d zaxis = viewCoords.Normalized();
vector3d xaxis = vector3d(0,1,0).Cross(zaxis).Normalized();
vector3d yaxis = zaxis.Cross(xaxis);
matrix4x4d rot = matrix4x4d::MakeInvRotMatrix(xaxis, yaxis, zaxis);
trans = trans * rot;
m_renderer->SetDepthTest(false);
m_renderer->SetBlendMode(BLEND_ALPHA_ONE);
// XXX this is supposed to pick a correct light colour for the object twinkle.
// Not quite correct, since it always uses the first light
GLfloat col[4];
glGetLightfv(GL_LIGHT0, GL_DIFFUSE, col);
col[3] = 1.f;
static VertexArray va(ATTRIB_POSITION | ATTRIB_DIFFUSE);
va.Clear();
const Color center(col[0], col[1], col[2], col[2]);
const Color edges(col[0], col[1], col[2], 0.f);
//center
va.Add(vector3f(0.f), center);
const float spikerad = float(scale*rad);
// bezier with (0,0,0) control points
{
const vector3f p0(0,spikerad,0), p1(spikerad,0,0);
float t=0.1f; for (int i=1; i<10; i++, t+= 0.1f) {
const vector3f p = (1-t)*(1-t)*p0 + t*t*p1;
va.Add(p, edges);
}
}
{
const vector3f p0(spikerad,0,0), p1(0,-spikerad,0);
float t=0.1f; for (int i=1; i<10; i++, t+= 0.1f) {
const vector3f p = (1-t)*(1-t)*p0 + t*t*p1;
va.Add(p, edges);
}
}
{
const vector3f p0(0,-spikerad,0), p1(-spikerad,0,0);
float t=0.1f; for (int i=1; i<10; i++, t+= 0.1f) {
const vector3f p = (1-t)*(1-t)*p0 + t*t*p1;
va.Add(p, edges);
}
}
{
const vector3f p0(-spikerad,0,0), p1(0,spikerad,0);
float t=0.1f; for (int i=1; i<10; i++, t+= 0.1f) {
const vector3f p = (1-t)*(1-t)*p0 + t*t*p1;
va.Add(p, edges);
}
}
glPushMatrix();
m_renderer->SetTransform(trans);
m_renderer->DrawTriangles(&va, Graphics::vtxColorMaterial, TRIANGLE_FAN);
m_renderer->SetBlendMode(BLEND_SOLID);
m_renderer->SetDepthTest(true);
glPopMatrix();
}
void BaseSphere::DrawAtmosphereSurface(Graphics::Renderer *renderer,
const matrix4x4d &modelView, const vector3d &campos, float rad,
Graphics::RenderState *rs, Graphics::Material *mat)
{
using namespace Graphics;
const vector3d yaxis = campos.Normalized();
const vector3d zaxis = vector3d(1.0, 0.0, 0.0).Cross(yaxis).Normalized();
const vector3d xaxis = yaxis.Cross(zaxis);
const matrix4x4d invrot = matrix4x4d::MakeRotMatrix(xaxis, yaxis, zaxis).Inverse();
renderer->SetTransform(modelView * matrix4x4d::ScaleMatrix(rad, rad, rad) * invrot);
// what is this? Well, angle to the horizon is:
// acos(planetRadius/viewerDistFromSphereCentre)
// and angle from this tangent on to atmosphere is:
// acos(planetRadius/atmosphereRadius) ie acos(1.0/1.01244blah)
const double endAng = acos(1.0 / campos.Length()) + acos(1.0 / rad);
const double latDiff = endAng / double(LAT_SEGS);
double rot = 0.0;
float sinTable[LONG_SEGS + 1];
float cosTable[LONG_SEGS + 1];
for (int i = 0; i <= LONG_SEGS; i++, rot += 2.0*M_PI / double(LONG_SEGS)) {
sinTable[i] = float(sin(rot));
cosTable[i] = float(cos(rot));
}
// Tri-fan above viewer
if(!m_TriFanAbove.Valid())
{
// VertexBuffer
VertexBufferDesc vbd;
vbd.attrib[0].semantic = ATTRIB_POSITION;
vbd.attrib[0].format = ATTRIB_FORMAT_FLOAT3;
vbd.numVertices = LONG_SEGS + 2;
vbd.usage = BUFFER_USAGE_STATIC;
m_TriFanAbove.Reset(renderer->CreateVertexBuffer(vbd));
}
#pragma pack(push, 4)
struct PosVert {
vector3f pos;
};
#pragma pack(pop)
PosVert* vtxPtr = m_TriFanAbove->Map<PosVert>(Graphics::BUFFER_MAP_WRITE);
vtxPtr[0].pos = vector3f(0.f, 1.f, 0.f);
for (int i = 0; i <= LONG_SEGS; i++)
{
vtxPtr[i + 1].pos = vector3f(
sin(latDiff)*sinTable[i],
cos(latDiff),
-sin(latDiff)*cosTable[i]);
}
m_TriFanAbove->Unmap();
renderer->DrawBuffer(m_TriFanAbove.Get(), rs, mat, Graphics::TRIANGLE_FAN);
// and wound latitudinal strips
if (!m_LatitudinalStrips[0].Valid())
{
VertexBufferDesc vbd;
vbd.attrib[0].semantic = ATTRIB_POSITION;
vbd.attrib[0].format = ATTRIB_FORMAT_FLOAT3;
vbd.numVertices = (LONG_SEGS + 1) * 2;
vbd.usage = BUFFER_USAGE_DYNAMIC;
for (int j = 0; j < LAT_SEGS; j++) {
// VertexBuffer
m_LatitudinalStrips[j].Reset(renderer->CreateVertexBuffer(vbd));
}
}
double lat = latDiff;
for (int j=1; j<LAT_SEGS; j++, lat += latDiff) {
const float cosLat = cos(lat);
const float sinLat = sin(lat);
const float cosLat2 = cos(lat+latDiff);
const float sinLat2 = sin(lat+latDiff);
vtxPtr = m_LatitudinalStrips[j]->Map<PosVert>(Graphics::BUFFER_MAP_WRITE);
vtxPtr[0].pos = vector3f(0.f, 1.f, 0.f);
for (int i=0; i<=LONG_SEGS; i++) {
vtxPtr[(i*2)+0].pos = vector3f(sinLat*sinTable[i], cosLat, -sinLat*cosTable[i]);
vtxPtr[(i*2)+1].pos = vector3f(sinLat2*sinTable[i], cosLat2, -sinLat2*cosTable[i]);
}
m_LatitudinalStrips[j]->Unmap();
renderer->DrawBuffer(m_LatitudinalStrips[j].Get(), rs, mat, Graphics::TRIANGLE_STRIP);
}
renderer->GetStats().AddToStatCount(Graphics::Stats::STAT_ATMOSPHERES, 1);
}