Maze-SFML/GameStateManager.cpp at main · karol2502/Maze-SFML · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
#include "GameStateManager.h"

void GameStateManager::ChangeState(GameState* state, int GamePlay)
{
	// Cleanup the current state.
	if (!states.empty())
	{
		states.back()->Cleanup();
		delete states.back();
		states.pop_back();
		if (!states.empty() && GamePlay == 1)
		{
			states.back()->Cleanup();
			delete states.back();
			states.pop_back();
		}
	}

	// Store and init the new state.
	states.push_back(state);
	states.back()->Init();
}

// Pause the current state and go to a new state.
void GameStateManager::PushState(GameState* state)
{
	if (!states.empty())
		states.back()->Pause();

	states.push_back(state);
	states.back()->Init();
}

// Leave current state and go to previous state.
void GameStateManager::PopState()
{
	if (!states.empty())
	{
		states.back()->Cleanup();
		delete states.back();
		states.pop_back();
	}

	if (!states.empty())
		states.back()->Resume();
}

void GameStateManager::Clear()
{
	while (!states.empty())
	{
		states.back()->Cleanup();
		delete states.back();
		states.pop_back();
	}
}

GameState* GameStateManager::GetCurrent()
{
	if (!states.empty())
	{
		return states.back();
	}
	else
	{
		return nullptr;
	}
}