7 files changed, 55 insertions, 9 deletions
diff --git a/src/game/assets.cpp b/src/game/assets.cpp
index 96666a3..aedad52 100644
--- a/src/game/assets.cpp
+++ b/src/game/assets.cpp
@@ -28,10 +28,10 @@ repl_assets_t repl;
 fx_assets_t fx;
 deco_assets_t deco;
 audio::ambient_t ambients[AMBIENT_COUNT];
-
 render::animated_texture_t unit_selected;
 render::animated_texture_t unit_selected_halo;
 render::animated_texture_t move_marker, aim_marker;
+ui_assets_t ui;
 
 void load(void)
 {
@@ -148,6 +148,8 @@ void load(void)
 	ambients[AMBIENT_WIND].volume = 3.0f;
 	ambients[AMBIENT_WATER].load("assets/ambience/water.ogg");
 	ambients[AMBIENT_WATER].volume = 0.1f;
+
+	ui.crystals.load("assets/ui/crystals_", 1);
 }
 
 } // namespace game::assets
diff --git a/src/game/game.cpp b/src/game/game.cpp
index 086b926..30e4fba 100644
--- a/src/game/game.cpp
+++ b/src/game/game.cpp
@@ -78,16 +78,13 @@ void entity_t::sleep(void)
 
 void state_t::start(void)
 {
-	unit_soldier_t *soldier;
 	unit_repl_t *repl;
 
 	world.generator = worldgen;
 	world.generator_data = (void*)this;
 
-	soldier = new unit_soldier_t(this);
-	soldier->place(&world, v2f_t(0.5, 0.5));
 	repl = new unit_repl_t(this);
-	repl->place(&world, v2f_t(1.5, 0.5));
+	repl->place(&world, v2f_t(1.3, -0.6));
 
 	resume();
 }
diff --git a/src/game/game.hpp b/src/game/game.hpp
index e48e2a3..b9b593e 100644
--- a/src/game/game.hpp
+++ b/src/game/game.hpp
@@ -146,6 +146,8 @@ namespace game {
 		void select(rectf_t rect, int type);
 		bool populate_pie_menu(std::vector<interface::pie_item_t> &items);
 		void command(v2f_t x, int number);
+
+		size_t crystals = 150;
 	};
 
 	enum {
@@ -246,6 +248,10 @@ namespace game {
 			render::animated_texture_t crystal, crystal_broken;
 		} deco_assets_t;
 
+		typedef struct {
+			render::animated_texture_t crystals;
+		} ui_assets_t;
+
 		extern soldier_assets_t soldier;
 		extern scientist_assets_t scientist;
 		extern builder_assets_t builder;
@@ -258,6 +264,7 @@ namespace game {
 		extern render::animated_texture_t unit_selected; 
 		extern render::animated_texture_t unit_selected_halo;
 		extern render::animated_texture_t move_marker, aim_marker;
+		extern ui_assets_t ui;
 
 		void load(void);
 	}
diff --git a/src/game/interface.cpp b/src/game/interface.cpp
index 5b89f58..9e43839 100644
--- a/src/game/interface.cpp
+++ b/src/game/interface.cpp
@@ -406,6 +406,7 @@ static void render_avatar(render::state_t *render, game::unit_t *unit, v2f_t at,
 void state_t::render_to(render::state_t *render)
 {
 	size_t w = window->getSize().x, h = window->getSize().y;
+	rectf_t rect;
 	v2f_t x;
 	std::stringstream ss;
 	v2f_t avatar_size;
@@ -468,14 +469,31 @@ void state_t::render_to(render::state_t *render)
 			i++;
 	}
 
-	x = v2f_t(0.0f, 0.0f);
+	rect = rectf_t(v2f_t(0.0f, 0.0f), v2f_t(w, 1.1f * em));
+	render->render_rect(rect, sf::Color(0, 0, 0, 140));
+
+	rect = rectf_t(v2f_t(0.0f, 0.0f), 1.1f * v2f_t(em, em));
+	render->render(0.0, &assets::ui.crystals, rect, sf::Color::White);
+
+	x = v2f_t(1.1f * em, 0.0f);
+	render->render_text(x, em, std::to_string(game->crystals), render::ALIGN_LEFT_TOP, sf::Color::White);
+
+	x = v2f_t(w - 0.3f * em, 0.0f);
+	if (game->paused)
+		ss << "PAUSED ";
+	ss << game->time / SEC(60);
+	ss << ":";
+	ss << std::setw(2) << std::setfill('0') << game->time / SEC(1) % 60 << std::setw(0);
+	render->render_text(x, em, ss.str(), render::ALIGN_RIGHT_TOP, sf::Color::White);
+
+	x = v2f_t(0.0f, rect[1][1]);
 	for (log_entry_t &entry : log) {
 		render->render_text(x, em, entry.text, render::ALIGN_LEFT_TOP, sf::Color::White);
 		x[1] += em;
 	}
 	
 	x = v2f_t(0.0f, h - em * 1.5);
-
+	ss.str(std::string());
 	ss << std::fixed << std::setprecision(3);
 	ss << "Game t/F/B: " << game->time * 1.0e-9 << "/" << game->frames << "/" << game->frames_behind;
 	render->render_text(x, em, ss.str(), render::ALIGN_LEFT_TOP, sf::Color::White);
diff --git a/src/game/unit_repl.cpp b/src/game/unit_repl.cpp
index 6dfa005..ddea8b0 100644
--- a/src/game/unit_repl.cpp
+++ b/src/game/unit_repl.cpp
@@ -54,10 +54,26 @@ void unit_repl_t::render_to(render::state_t *render)
 
 void unit_repl_t::activate(unit_t::type_t type)
 {
+	size_t price;
 	world::cmodel_t cmodel;
 	unit_t *unit;
 
 	switch (type) {
+	case UNIT_SOLDIER:   price = 40; break;
+	case UNIT_SCIENTIST: price = 95; break;
+	case UNIT_BUILDER:   price = 70; break;
+	default:
+		abort();
+	}
+
+	if (game->crystals < price) {
+		game->interface.print("Insufficient crystals; " + std::to_string(price - game->crystals) + " more needed.");
+		return;
+	}
+
+	game->crystals -= price;
+
+	switch (type) {
 	case UNIT_SOLDIER:
 		unit = new unit_soldier_t(game);
 		break;
diff --git a/src/game/unit_scientist.cpp b/src/game/unit_scientist.cpp
index bac2a23..129d7fa 100644
--- a/src/game/unit_scientist.cpp
+++ b/src/game/unit_scientist.cpp
@@ -57,6 +57,7 @@ void unit_scientist_t::gather_crystals(void)
 	world::trace_t trace;
 	bool found = true;
 	deco_t *deco;
+	size_t crystals;
 
 	if (!move.moving)
 		start_moving(gathering_at);
@@ -76,6 +77,11 @@ void unit_scientist_t::gather_crystals(void)
 		goto out;
 	}
 
+	crystals = game->prng.next() % 100 + 1;
+	game->crystals += crystals;
+	game->interface.print(name + " collected " + std::to_string(crystals) + " " +
+	                      (crystals == 1 ? "crystal" : "crystals"));
+
 	deco->type = DECO_CRYSTAL_BROKEN;
 	assets::scientist.gather.play_3d(x);
 
diff --git a/src/game/worldgen.cpp b/src/game/worldgen.cpp
index 9d6ccd3..7af6315 100644
--- a/src/game/worldgen.cpp
+++ b/src/game/worldgen.cpp
@@ -78,9 +78,9 @@ just_decos:
 		break;
 
 	case TILE_DIRT:
-		if (noise > 0.37)
+		if (noise > 0.35)
 			type = DECO_CRYSTAL;
-		else if (noise > 0.36)
+		else if (noise > 0.34)
 			type = DECO_CRYSTAL_BROKEN;
 		else if (noise > 0.33)
 			type = DECO_STONE;