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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
#include "game.h"
#include <cstdlib>
#include "renderer.h"
#include "muxer.h"
#include "map.h"
#include "components/user_movement.h"
#include "components/player_physics.h"
#include "components/player_sprite.h"
#include "components/map_render.h"
#include "components/map_collision.h"
#include "consts.h"
Game::Game(const char* mapfile) : world(mapfile)
{
// Set up entities
player = std::make_shared<Entity>();
player->position = world.getStartingPosition();
player->size = std::make_pair(10.0,12.0);
auto player_input = std::make_shared<UserMovementComponent>();
player->addComponent(player_input);
auto player_physics = std::make_shared<PlayerPhysicsComponent>();
player->addComponent(player_physics);
auto player_anim = std::make_shared<PlayerSpriteComponent>();
player->addComponent(player_anim);
const Map& startingMap = world.getStartingMap();
save = {&startingMap, player->position};
loadMap(startingMap, player->position);
}
void key_callback(GLFWwindow* window, int key, int, int action, int)
{
Game* game = (Game*) glfwGetWindowUserPointer(window);
if ((key == GLFW_KEY_ESCAPE) && (action == GLFW_PRESS))
{
game->shouldQuit = true;
}
for (auto entity : game->entities)
{
entity->input(*game, key, action);
}
}
void Game::execute(GLFWwindow* window)
{
glfwSwapInterval(1);
glfwSetWindowUserPointer(window, this);
glfwSetKeyCallback(window, key_callback);
Texture buffer(GAME_WIDTH, GAME_HEIGHT);
double lastTime = glfwGetTime();
const double dt = 0.01;
double accumulator = 0.0;
while (!(shouldQuit || glfwWindowShouldClose(window)))
{
double currentTime = glfwGetTime();
double frameTime = currentTime - lastTime;
lastTime = currentTime;
// Should we load a new world?
if (newWorld)
{
newWorld = false;
entities.clear();
entities = std::move(nextEntities);
player->position = nextPosition;
}
// Handle input
glfwPollEvents();
// Tick!
accumulator += frameTime;
while (accumulator >= dt)
{
for (auto entity : entities)
{
entity->tick(*this, dt);
}
accumulator -= dt;
}
// Do any scheduled tasks
for (auto& task : scheduled)
{
task.first -= frameTime;
if (task.first <= 0)
{
task.second();
}
}
scheduled.remove_if([] (std::pair<double, std::function<void ()>> value) { return value.first <= 0; });
// Do rendering
buffer.fill(buffer.entirety(), 0, 0, 0);
for (auto entity : entities)
{
entity->render(*this, buffer);
}
buffer.renderScreen();
}
}
void Game::loadMap(const Map& map, std::pair<double, double> position)
{
auto mapEn = std::make_shared<Entity>();
auto map_render = std::make_shared<MapRenderComponent>(map);
mapEn->addComponent(map_render);
auto map_collision = std::make_shared<MapCollisionComponent>(map);
mapEn->addComponent(map_collision);
// Map in the back, player on top, rest of entities in between
nextEntities.clear();
nextEntities.push_back(mapEn);
map.createEntities(nextEntities);
nextEntities.push_back(player);
newWorld = true;
currentMap = ↦
nextPosition = position;
}
void Game::detectCollision(Entity& collider, std::pair<double, double> old_position)
{
for (auto entity : entities)
{
entity->detectCollision(*this, collider, old_position);
}
}
void Game::saveGame()
{
save = {currentMap, player->position};
}
void Game::schedule(double time, std::function<void ()> callback)
{
scheduled.emplace_front(time, std::move(callback));
}
void Game::playerDie()
{
player->send(*this, Message::Type::die);
playSound("res/Hit_Hurt5.wav", 0.25);
schedule(0.75, [&] () {
if (*currentMap != *save.map)
{
loadMap(*save.map, save.position);
} else {
player->position = save.position;
}
player->send(*this, Message::Type::stopDying);
});
}
const World& Game::getWorld() const
{
return world;
}
|
