particle effect for special attack

assets/game_assets/blueprints/special_attack_marker.json

+{
+	"Transform":{
+		"scale": {"x": 1.0, "y": 1.0, "z": 1.0}
+	},
+	"Particle_system": {
+		"cfg": "particle_sys:special_attack_particle_system"
+	}
+}

assets/game_assets/particles/special_attack_particle_system.json

+{
+	"emitters": [{
+		"spawn": [
+			{"particles_per_second": 2000, "stddev":0, "time": 0.01},
+			{"particles_per_second": 0, "stddev":0, "time": 1}
+		],
+		"spawn_loop": false,
+
+		"size": {"x":0.0, "y":0.0},
+		"direction": {"mean":{"elevation":0.0, "azimuth":0.5}, "stddev":{"elevation":0.02, "azimuth":1}},
+
+		"ttl": {"mean": 0.8, "stddev": 0.0},
+		
+		"velocity": {"mean": 16, "stddev": 0.0},
+
+		"emit_script_id": "comp_shader:particle_spawn_sphere",
+
+		"type_id": "particle_def:special_attack_particles"
+	}]
+}

assets/game_assets/particles/special_attack_particles.json

+{
+	"keyframes": [
+		{
+			"time": 0.0,
+			"color": {"mean":{"hue":0.472, "saturation":1, "value":0.0, "alpha":0}, "stddev":{"hue":0.01}},
+			"size": {"mean": {"x": 0.0, "y":0.0, "z":0.0}},
+			"rotation": {"mean":{"angle":1}, "stddev":{"elevation":1, "azimuth":1, "angle": 1}},
+			"drag": 0.0
+		},
+		{
+			"time": 0.1,
+			"color": {"mean":{"hue":0.472, "saturation":1, "alpha":20}, "stddev":{"hue":0.004}},
+			"size": {"mean": {"x": 0.5, "y":0.5, "z":0.5}, "stddev":{"x": 0.1, "y":0.1, "z":0.1}},
+			"rotation": {"mean":{"angle":0}, "stddev":{"elevation":1, "azimuth":1, "angle": 1}},
+			"drag": 0.1
+		},
+		{
+			"time": 0.8,
+			"color": {"mean":{"hue":0.472, "saturation":1, "value":0.0, "alpha":0}, "stddev":{"hue":0.01}},
+			"size": {"mean": {"x": 0.0, "y":0.0, "z":0.0}},
+			"rotation": {"mean":{"angle":1}, "stddev":{"elevation":1, "azimuth":1, "angle": 1}},
+			"drag": 1.0
+		}
+	],
+
+	"symmetric_scaling": true,
+	"rotate_with_velocity": true,
+	"blend": "solid",
+
+	"geometry": "mesh",
+	"model_id": "model:tetr",
+
+	"update_script_id": "comp_shader:particle_update_simple"
+}

mirrage @ 97d1f27e

-Subproject commit 3e190ffff0e2a684d4ca3f968f2459f225b93b77
+Subproject commit 97d1f27e002409519dae841dd1053de1c7eca2fa

src/gameplay/movement_system.cpp

@@ -70,7 +70,7 @@ namespace phase_shifter::gameplay {
 						move.attack = true;
 
 						if(entity.has<Player_comp>()) {
-							_bus.send<Play_sound_msg>("attack"_strid);
+							_bus.send<Special_attack_msg>(transform.position);
 						}
 					} else {
 						// start movement

src/messages.hpp

@@ -21,6 +21,10 @@ namespace phase_shifter {
 		glm::vec3 attack_direction;
 	};
 
+	struct Special_attack_msg {
+		glm::vec3 position;
+	};
+
 	struct Play_sound_msg {
 		mirrage::util::Str_id id;
 	};

src/ui/effect_system.cpp

@@ -33,6 +33,7 @@ namespace phase_shifter::ui {
 			entity.process([=](Particle_system_comp& particle) {
 				for(auto& e : particle.particle_system.emitters()) {
 					e.active(true);
+					e.reset_time();
 				}
 			});
 			entity.process([=](Transform_comp& transform) {
@@ -48,14 +49,13 @@ namespace phase_shifter::ui {
 
 		_tombstones.resize(20);
 		for(auto& t : _tombstones) {
-			t.entity = _ecs.entity_builder("enemy_tombstone")
-			                   .position(glm::vec3{-999.f, 0.f, -999.f})
-			                   .post_create([=](mirrage::ecs::Entity_facet entity) {
-				                   //  disable_tombstone(entity);
-			                   })
-			                   .create();
+			t.entity =
+			        _ecs.entity_builder("enemy_tombstone").position(glm::vec3{-999.f, 0.f, -999.f}).create();
 		};
 
+		_special_attack_marker =
+		        _ecs.entity_builder("special_attack_marker").position(glm::vec3{-999.f, 0.f, -999.f}).create();
+
 		_mailbox.subscribe_to([&](Enemy_killed_msg& e) {
 			_bus.send<Play_sound_msg>("enemy_hit"_strid);
 
@@ -78,6 +78,13 @@ namespace phase_shifter::ui {
 			});
 		});
 
+		_mailbox.subscribe_to([&](Special_attack_msg& e) {
+			_bus.send<Play_sound_msg>("attack"_strid);
+			enable_tombstone(_special_attack_marker, e.position + glm::vec3(0, 1, 0), glm::vec3(1, 0, 0));
+			_time_to_free_special_attack_marker = 0.5f;
+			// TODO
+		});
+
 		_mailbox.subscribe_to([&](Win_msg& e) {
 			_bus.send<Play_sound_msg>("win"_strid);
 			// TODO
@@ -93,6 +100,13 @@ namespace phase_shifter::ui {
 	{
 		_mailbox.update_subscriptions();
 		_actions.update(dt);
+
+		if(_time_to_free_special_attack_marker > 0) {
+			_time_to_free_special_attack_marker -= dt.value();
+			if(_time_to_free_special_attack_marker < 0) {
+				disable_tombstone(_special_attack_marker);
+			}
+		}
 	}
 
 } // namespace phase_shifter::ui

src/ui/effect_system.hpp

@@ -28,7 +28,9 @@ namespace phase_shifter::ui {
 		mirrage::ecs::Entity_manager&            _ecs;
 		mirrage::util::Deferred_action_container _actions;
 
-		std::vector<Tombstone> _tombstones;
+		std::vector<Tombstone>     _tombstones;
+		mirrage::ecs::Entity_facet _special_attack_marker;
+		float                      _time_to_free_special_attack_marker = 0;
 	};
 
 } // namespace phase_shifter::ui