1 files changed, 112 insertions, 0 deletions
diff --git a/src/game/server/entities/laser.cpp b/src/game/server/entities/laser.cpp
new file mode 100644
index 00000000..cedf7850
--- /dev/null
+++ b/src/game/server/entities/laser.cpp
@@ -0,0 +1,112 @@
+/* copyright (c) 2007 magnus auvinen, see licence.txt for more info */
+#include <engine/e_server_interface.h>
+#include <game/generated/g_protocol.hpp>
+#include <game/server/gs_common.hpp>
+#include "laser.hpp"
+
+//////////////////////////////////////////////////
+// laser
+//////////////////////////////////////////////////
+LASER::LASER(vec2 pos, vec2 direction, float start_energy, CHARACTER *owner)
+: ENTITY(NETOBJTYPE_LASER)
+{
+	this->pos = pos;
+	this->owner = owner;
+	energy = start_energy;
+	dir = direction;
+	bounces = 0;
+	do_bounce();
+	
+	game.world.insert_entity(this);
+}
+
+
+bool LASER::hit_character(vec2 from, vec2 to)
+{
+	vec2 at;
+	CHARACTER *hit = game.world.intersect_character(pos, to, 0.0f, at, owner);
+	if(!hit)
+		return false;
+
+	this->from = from;
+	pos = at;
+	energy = -1;		
+	hit->take_damage(vec2(0,0), tuning.laser_damage, owner->player->client_id, WEAPON_RIFLE);
+	return true;
+}
+
+void LASER::do_bounce()
+{
+	eval_tick = server_tick();
+	
+	if(energy < 0)
+	{
+		//dbg_msg("laser", "%d removed", server_tick());
+		game.world.destroy_entity(this);
+		return;
+	}
+	
+	vec2 to = pos + dir*energy;
+	
+	if(col_intersect_line(pos, to, &to))
+	{
+		if(!hit_character(pos, to))
+		{
+			// intersected
+			from = pos;
+			pos = to - dir*2;
+			vec2 temp_pos = pos;
+			vec2 temp_dir = dir*4.0f;
+			
+			move_point(&temp_pos, &temp_dir, 1.0f, 0);
+			pos = temp_pos;
+			dir = normalize(temp_dir);
+			
+			energy -= distance(from, pos) + tuning.laser_bounce_cost;
+			bounces++;
+			
+			if(bounces > tuning.laser_bounce_num)
+				energy = -1;
+				
+			game.create_sound(pos, SOUND_RIFLE_BOUNCE);
+		}
+	}
+	else
+	{
+		if(!hit_character(pos, to))
+		{
+			from = pos;
+			pos = to;
+			energy = -1;
+		}
+	}
+		
+	//dbg_msg("laser", "%d done %f %f %f %f", server_tick(), from.x, from.y, pos.x, pos.y);
+}
+	
+void LASER::reset()
+{
+	game.world.destroy_entity(this);
+}
+
+void LASER::tick()
+{
+	if(server_tick() > eval_tick+(server_tickspeed()*tuning.laser_bounce_delay)/1000.0f)
+	{
+		do_bounce();
+	}
+
+}
+
+void LASER::snap(int snapping_client)
+{
+	if(distance(game.players[snapping_client].view_pos, pos) > 1000.0f)
+		return;
+
+	NETOBJ_LASER *obj = (NETOBJ_LASER *)snap_new_item(NETOBJTYPE_LASER, id, sizeof(NETOBJ_LASER));
+	obj->x = (int)pos.x;
+	obj->y = (int)pos.y;
+	obj->from_x = (int)from.x;
+	obj->from_y = (int)from.y;
+	obj->start_tick = eval_tick;
+}