Separate units from game.cpp.

1 files changed, 181 insertions, 0 deletions

diff --git a/src/game/units.cpp b/src/game/units.cpp
new file mode 100644
index 0000000..268425d
--- /dev/null
+++ b/src/game/units.cpp
@@ -0,0 +1,181 @@
+#include "game.hpp"
+
+namespace game {
+
+world::cmodel_t unit_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 unit_t::compute_bounds()
+{
+	render_bounds[0] = x + render_size[0];
+	render_bounds[1] = x + render_size[1];
+}
+
+
+unit_t::unit_t() : entity_t(ET_UNIT)
+{
+}
+
+void unit_t::say(const wchar_t *wstr, double now)
+{
+	say_text = wstr;
+	say_time = now;
+	std::cout << (void*)this << ": " << wstr << "\n";
+}
+
+void unit_t::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 unit_t::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 unit_t::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;
+}
+
+human_t::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 human_t::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);
+	}
+}
+
+} // namespace game