3 // AngryStone - A spiked block that charges towards the player
4 // Copyright (C) 2006 Christoph Sommer <christoph.sommer@2006.expires.deltadevelopment.de>
6 // This program is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU General Public License
8 // as published by the Free Software Foundation; either version 2
9 // of the License, or (at your option) any later version.
11 // This program is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License
17 // along with this program; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
23 #include "angrystone.hpp"
25 #include "lisp/writer.hpp"
26 #include "object/player.hpp"
27 #include "object_factory.hpp"
28 #include "sprite/sprite.hpp"
30 static const float SPEED = 240;
32 static const float CHARGE_TIME = .5;
33 static const float ATTACK_TIME = 1;
34 static const float RECOVER_TIME = .5;
36 AngryStone::AngryStone(const lisp::Lisp& reader)
37 : BadGuy(reader, "images/creatures/angrystone/angrystone.sprite"), state(IDLE)
39 physic.set_velocity_x(0);
40 physic.set_velocity_y(0);
41 physic.enable_gravity(true);
42 sprite->set_action("idle");
46 AngryStone::write(lisp::Writer& writer)
48 writer.start_list("angrystone");
50 writer.write("x", start_position.x);
51 writer.write("y", start_position.y);
53 writer.end_list("angrystone");
57 AngryStone::collision_solid(const CollisionHit& hit)
62 if ((state == ATTACKING) &&
63 (hit.normal.x == -attackDirection.x) && (hit.normal.y == attackDirection.y)) {
65 sprite->set_action("idle");
66 physic.set_velocity_x(0);
67 physic.set_velocity_y(0);
68 physic.enable_gravity(true);
69 oldWallDirection.x = attackDirection.x;
70 oldWallDirection.y = attackDirection.y;
76 AngryStone::kill_fall()
78 //prevents AngryStone from getting killed by other enemies or the player
82 AngryStone::collision_badguy(BadGuy& badguy, const CollisionHit& )
84 if (state == ATTACKING) {
93 AngryStone::active_update(float elapsed_time) {
94 BadGuy::active_update(elapsed_time);
97 MovingObject* player = this->get_nearest_player();
99 MovingObject* badguy = this;
100 const Vector playerPos = player->get_pos();
101 const Vector badguyPos = badguy->get_pos();
102 float dx = (playerPos.x - badguyPos.x);
103 float dy = (playerPos.y - badguyPos.y);
105 float playerHeight = player->get_bbox().p2.y - player->get_bbox().p1.y;
106 float badguyHeight = badguy->get_bbox().p2.y - badguy->get_bbox().p1.y;
108 float playerWidth = player->get_bbox().p2.x - player->get_bbox().p1.x;
109 float badguyWidth = badguy->get_bbox().p2.x - badguy->get_bbox().p1.x;
111 if ((dx > -playerWidth) && (dx < badguyWidth)) {
113 attackDirection.x = 0;
114 attackDirection.y = 1;
116 attackDirection.x = 0;
117 attackDirection.y = -1;
119 if ((attackDirection.x != oldWallDirection.x) || (attackDirection.y != oldWallDirection.y)) {
120 sprite->set_action("charging");
121 timer.start(CHARGE_TIME);
125 if ((dy > -playerHeight) && (dy < badguyHeight)) {
127 attackDirection.x = 1;
128 attackDirection.y = 0;
130 attackDirection.x = -1;
131 attackDirection.y = 0;
133 if ((attackDirection.x != oldWallDirection.x) || (attackDirection.y != oldWallDirection.y)) {
134 sprite->set_action("charging");
135 timer.start(CHARGE_TIME);
143 if (state == CHARGING) {
145 sprite->set_action("attacking");
146 timer.start(ATTACK_TIME);
148 physic.enable_gravity(false);
149 physic.set_velocity_x(SPEED * attackDirection.x);
150 physic.set_velocity_y(SPEED * attackDirection.y);
151 oldWallDirection.x = 0;
152 oldWallDirection.y = 0;
156 if (state == ATTACKING) {
158 timer.start(RECOVER_TIME);
160 sprite->set_action("idle");
161 physic.enable_gravity(true);
162 physic.set_velocity_x(0);
163 physic.set_velocity_y(0);
167 if (state == RECOVERING) {
170 sprite->set_action("idle");
171 physic.enable_gravity(true);
172 physic.set_velocity_x(0);
173 physic.set_velocity_y(0);
179 IMPLEMENT_FACTORY(AngryStone, "angrystone")