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#include "common.hpp"
namespace game {
static size_t selection_cookie = 1;
enum {
ET_UNIT
};
class unit_t : public world::entity_t {
protected:
world::world_t *world;
world::cmodel_t make_cmodel(v2f_t at)
{
world::cmodel_t cmodel;
cmodel.bounds[0] = at + size[0];
cmodel.bounds[1] = at + size[1];
cmodel.cflags = cflags;
return cmodel;
}
void compute_bounds()
{
render_bounds[0] = x + render_size[0];
render_bounds[1] = x + render_size[1];
}
public:
v2f_t x;
rectf_t size, render_size;
world::cflags_t cflags;
size_t selected = 0;
unit_t() : entity_t(ET_UNIT)
{
}
struct {
bool moving = false;
v2f_t dst;
float angle = 0.0f;
std::list<v2f_t> path;
bool blocked;
size_t attempts_left;
float next_attempt;
} move;
const wchar_t *say_text;
double say_time = -INFINITY;
void say(const wchar_t *wstr, double now)
{
say_text = wstr;
say_time = now;
std::cout << (void*)this << ": " << wstr << "\n";
}
void place(world::world_t *world_, v2f_t x_)
{
world = world_;
x = x_;
move.moving = false;
cflags = 1;
unlink();
cmodel = make_cmodel(x);
compute_bounds();
link(world);
}
void keep_moving(double now, double dt)
{
float time;
if (!move.moving)
return;
if (move.blocked && now < move.next_attempt)
return;
time = dt * 10;
while (time > 0.0f) {
v2f_t delta, next, x_new;
world::cmodel_t cmodel_next;
if (!move.path.size()) {
move.moving = false;
break;
}
next = *move.path.begin();
delta = next - x;
move.angle = delta.angle();
if (delta.len() >= time) {
x_new = x + delta * time / delta.len();
time -= delta.len();
} else {
x_new = next;
time -= delta.len();
move.path.pop_front();
}
cmodel_next = make_cmodel(x_new);
if (!world->test_rect(&cmodel_next, this)) {
x = x_new;
cmodel = cmodel_next;
continue;
}
if (move.attempts_left) {
move.blocked = true;
move.attempts_left--;
move.next_attempt = now + 0.2f;
} else {
if ((x - move.dst).len() > 1.5f)
say(text::unit_blocked, now);
move.moving = false;
}
break;
}
unlink();
compute_bounds();
link(world);
}
bool start_moving(v2f_t dst_, double now)
{
if (!world) {
printf("unit_t::start_moving: entity is not linked\n");
return false;
}
move.dst = dst_;
move.path.clear();
if (!world->find_path(x, move.dst, &cmodel, this, &move.path)) {
say(text::unit_no_path, now);
move.moving = false;
return false;
}
move.moving = true;
move.blocked = false;
move.attempts_left = 10;
move.next_attempt = -INFINITY;
return true;
}
};
class human_t : public unit_t {
public:
human_t()
{
size[0] = v2f_t(-0.4f, -0.4f);
size[1] = v2f_t(+0.4f, +0.4f);
render_size[0] = v2f_t(-0.5f, -1.0f);
render_size[1] = v2f_t(+0.5f, +0.5f);
}
void render_to(render::state_t *render)
{
bool moving;
if (selected == selection_cookie)
render->render_hlrect(render_bounds, sf::Color::Blue);
moving = move.moving && !move.blocked;
render->render((moving ? &assets::human.legs_walking :
&assets::human.legs_idle), render_bounds, move.angle);
render->render(&assets::human.body_idle, render_bounds, move.angle);
render->render(&assets::human.head_idle, render_bounds, move.angle);
{
v2f_t x1;
static float t = 0;
world::trace_t trace;
t += 0.02f;
x1[0] = x[0] + cos(t) * 5;
x1[1] = x[1] + sin(t) * 5;
trace = world->trace(x, x1, 1);
render->render_arrow(x, trace.end, sf::Color::Green);
}
if (move.moving && debug_draw_paths)
render->debug_path(&move.path);
if (say_time + 5.0 > render->now) {
v2f_t text_pos;
float height;
text_pos = render_bounds[0] + v2f_t(render_bounds.dim(0) / 2, -render_bounds.dim(1) * 0.1);
height = size.dim_min() * 0.20f;
render->render_text(text_pos, height, say_text,
render::ALIGN_CENTER_BOTTOM,
sf::Color::White);
}
}
};
void state_t::start(void)
{
human_t *human;
human = new human_t;
human->place(&world, v2f_t(0.5, 0.5));
units.insert(human);
}
void state_t::stop(void)
{
// FIXME
/*
for (unit_t *unit : units)
delete unit;
*/
}
void state_t::select(rectf_t x)
{
selection_cookie++;
selected_units.clear();
for (world::entity_t *ent : world.get_render_entities(x)) {
unit_t *unit;
if (ent->type != ET_UNIT)
continue;
unit = (unit_t*)ent;
unit->selected = selection_cookie;
selected_units.insert(unit);
}
}
void state_t::command(v2f_t x)
{
v2f_t snap;
snap[0] = std::round(x[0] - 0.5f) + 0.5f;
snap[1] = std::round(x[1] - 0.5f) + 0.5f;
for (unit_t *unit : selected_units)
unit->start_moving(snap, now);
}
void state_t::tick(double now_, double dt_)
{
now = now_;
dt = dt_;
for (unit_t *unit : units)
unit->keep_moving(now, dt);
}
} //namespace game
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