Basic alien AI.

1 files changed, 33 insertions, 7 deletions

diff --git a/src/game/units.cpp b/src/game/units.cpp
index d695050..4c4e828 100644
--- a/src/game/units.cpp
+++ b/src/game/units.cpp
@@ -20,8 +20,9 @@ void unit_t::compute_bounds()
 }
 
 
-unit_t::unit_t() : entity_t(ET_UNIT)
+unit_t::unit_t(unit_t::type_t type_) : entity_t(ET_UNIT)
 {
+	type = type_;
 }
 
 void unit_t::render_to(render::state_t *render)
@@ -53,7 +54,7 @@ void unit_t::place(world::world_t *world_, v2f_t x_)
 	link(world);
 }
 
-bool unit_t::keep_moving(double now, double dt)
+bool unit_t::keep_moving(double now, double dt, double speed)
 {
 	float time;
 
@@ -63,7 +64,7 @@ bool unit_t::keep_moving(double now, double dt)
 	if (move.blocked && now < move.next_attempt)
 		return false;
 
-	time = dt * 10;
+	time = dt * speed;
 
 	while (time > 0.0f) {
 		v2f_t delta, next, x_new;
@@ -137,7 +138,7 @@ bool unit_t::start_moving(v2f_t dst_, double now)
 	return true;
 }
 
-human_t::human_t()
+human_t::human_t() : unit_t(UNIT_HUMAN)
 {
 	size[0] = v2f_t(-0.4f, -0.4f);
 	size[1] = v2f_t(+0.4f, +0.4f);
@@ -145,9 +146,17 @@ human_t::human_t()
 	render_size[1] = v2f_t(+0.5f, +0.5f);
 }
 
-bool human_t::keep_moving(double now, double dt)
+void human_t::wake(double now, unit_t *by_whom)
 {
-	unit_t::keep_moving(now, dt);
+}
+
+void human_t::sleep(double now)
+{
+}
+
+void human_t::think(double now, double dt)
+{
+	keep_moving(now, dt, 4.0);
 }
 
 void human_t::render_to(render::state_t *render)
@@ -175,7 +184,7 @@ void human_t::render_to(render::state_t *render)
 	unit_t::render_to(render);
 }
 
-alien_t::alien_t()
+alien_t::alien_t() : unit_t(UNIT_ALIEN)
 {
 	size[0] = v2f_t(-0.2f, -0.2f);
 	size[1] = v2f_t(+0.2f, +0.2f);
@@ -183,6 +192,23 @@ alien_t::alien_t()
 	render_size[1] = v2f_t(+0.3f, +0.3f);
 }
 
+void alien_t::wake(double now, unit_t *by_whom)
+{
+	target = by_whom;
+	printf("the alien is now awake\n");
+}
+
+void alien_t::sleep(double now)
+{
+	printf("the alien is now sleeping\n");
+}
+
+void alien_t::think(double now, double dt)
+{
+	start_moving(target->x, now);
+	keep_moving(now, dt, 7.0);
+}
+
 void alien_t::render_to(render::state_t *render)
 {
 	bool moving;