finished changes to deps directory building
[physics.git] / src / game.cpp
... / ...
CommitLineData
1/*
2 * Copyright (C) 2008 Patrik Gornicz, Gornicz_P (at) hotmail (dot) com.
3 *
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#include "game.h"
19
20#include <bear/debug.h>
21using namespace bear;
22
23#include <vector>
24using std::vector;
25
26#include "entityCreator.h"
27#include "effectManager.h"
28
29#include "GameStates/GameState.h"
30#include "GameStates/Running.h"
31#include "GameStates/Paused.h"
32#include "GameStates/CreatingPolygon.h"
33
34
35/// ***** Private Variables *****
36
37// The stack of active game states
38static vector<GameState*> s_active_States;
39
40// Pointers to each possible game state
41// inserted and removed from the s_active_States
42static vector<GameState*> s_possible_States;
43
44// true if the top state requested itself to be poped
45static bool s_bPopState;
46// pointer to a state wishing to be added
47static GameState* s_pPushState;
48
49
50/// ***** Public Methods *****
51
52void game::init()
53{
54 s_bPopState = false;
55 s_pPushState = NULL;
56
57 // create starting entities
58 creator::init();
59 effect::init();
60
61 Running* pRunning = new Running();
62 s_possible_States.push_back(pRunning);
63 s_possible_States.push_back(new Paused());
64 s_possible_States.push_back(new CreatingPolygon());
65
66 s_active_States.push_back(pRunning);
67
68 DPF(0, "World Created");
69}
70
71void game::clean()
72{
73 effect::clean();
74 creator::clean();
75
76 for(unsigned int i=0; i < s_possible_States.size(); i++)
77 {
78 delete s_possible_States[i];
79 }
80 s_possible_States.clear();
81 s_active_States.clear();
82}
83
84void game::handleInput()
85{
86 creator::handleInput();
87
88 int iLast = s_active_States.size() -1;
89
90 for(unsigned int i=0; i < s_possible_States.size(); i++)
91 {
92 GameState* pState = s_possible_States[i];
93
94 if(s_active_States[iLast] != pState && pState->pushMe())
95 {
96 s_pPushState = pState;
97 }
98 }
99
100
101 for( int i = 0;
102 i <= iLast;
103 i++ )
104 {
105 if( i == iLast )
106 {
107 if(s_active_States[i]->popMe())
108 s_bPopState = true;
109 else
110 s_active_States[i]->handleInput(true);
111 }
112 else
113 s_active_States[i]->handleInput(false);
114 }
115}
116
117void game::update(float fTimeStep)
118{
119 if(s_bPopState)
120 {
121 s_active_States.pop_back();
122 s_bPopState = false;
123 }
124
125 if(s_pPushState != NULL)
126 {
127 s_active_States.push_back(s_pPushState);
128 s_pPushState = NULL;
129 }
130
131 int iLast = s_active_States.size() -1;
132 for( int i = 0;
133 i <= iLast;
134 i++ )
135 {
136 if( i == iLast )
137 s_active_States[i]->update(fTimeStep, true);
138 else
139 s_active_States[i]->update(fTimeStep, false);
140 }
141}
142
143void game::draw()
144{
145 int iLast = s_active_States.size() -1;
146 for( int i = 0;
147 i <= iLast;
148 i++ )
149 {
150 if( i == iLast )
151 s_active_States[i]->draw(true);
152 else
153 s_active_States[i]->draw(false);
154 }
155}