Tower.cpp

#include "Tower.h"
#include "Bullet.h"
#include "Bullets.h"
#include "externs.h"
#include "GLManager.h"
#include <iostream>

using namespace std;

GLfloat Tower::_scale = 7.5;
float Tower::_max_dist;
float Tower::bullet_delay;

Tower::Tower(int id, const string &path) {
    this->id = id;
    coords = new Vertex(0, 0, 0);
    _max_dist = conf.rfloat("game:tower_range");
    can_fire = true;
    dir_dist = 999999;
    radius = 37;
}

void Tower::set_pos(Vertex *new_coords) {
    coords->x = new_coords->x;
    coords->y = new_coords->y;
    coords->z = new_coords->z;
}

void Tower::update() {
    //init_render();
    direction = this->coords->directionVector(g_player->coords);
    dir_dist = (sqrt(pow(direction->x, 2) + pow(direction->z, 2)));

    if (dir_dist < _max_dist) {
        ang_x = acos(direction->x / dir_dist);
        if (g_player->coords->z > coords->z)
            ang_x = -ang_x;

        fire();
    }
}

void Tower::render() {
    if (g_frustum->sphereInFrustum(new Vertex(coords->x, coords->y + 36, coords->z), radius)) {
        glPushMatrix();
        glTranslatef(coords->x, coords->y, coords->z);
        glRotatef(90 + (ang_x * 180) / M_PI, 0, 1, 0);
        glCallList(g_towers->tower_list);
        glTranslatef(0, 37, 0);
        glPopMatrix();
    }
}

void Tower::fire() {
    if (canFire() && g_player->state == GAME_ON) {
        disallowFire();
        g_bullets->addBullet(coords, 90 + (ang_x * 180) / M_PI, -ang_x);
        glutTimerFunc(Tower::bullet_delay, GLManager::allowTowerFire, this->id);
    }
}

bool Tower::canFire() {
    return can_fire;
}

void Tower::allowFire() {
    can_fire = true;
}

void Tower::disallowFire() {
    can_fire = false;
}