void Game::draw()
{
al_clear_to_color(al_map_rgb(0, 0, 0));
// draw player
float x1 = m_player->getX();
float x2 = x1 + (m_player->getWidth() * PLAYER_WIDTH);
float y1 = m_player->getY();
float y2 = y1 + (m_player->getHeight() * PLAYER_HEIGHT);
al_draw_filled_rectangle(x1, y1, x2, y2, al_map_rgb(0, 255, 0));
float playerX = x1;
// move camera
if (playerX <= SCREEN_WIDTH / 2)
//camX = 0;
;
else if (playerX >= m_levelWidth - SCREEN_WIDTH / 2)
m_camX = m_levelWidth - SCREEN_WIDTH;
//;
else
{
m_camX = playerX - SCREEN_WIDTH / 2;
}
ALLEGRO_TRANSFORM trans;
al_identity_transform(&trans);
al_translate_transform(&trans, -m_camX, 0);
al_use_transform(&trans);
for (list<StationaryObject*>::iterator it = m_stationaryobjects.begin(); it != m_stationaryobjects.end(); it++)
{
StationaryObject* current = *it;
int width = current->getWidth() * TILE_WIDTH;
int height = current->getHeight() * TILE_HEIGHT;
float x1 = current->getX();
float x2 = x1 + width;
float y1 = current->getY();
float y2 = y1 + height;
if (x2 >= m_camX || x1 >= m_camX)
{
char tile = current->getTile();
switch (tile)
{
case 'w':
al_draw_filled_rectangle(x1, y1, x2, y2, al_map_rgb(255, 0, 0));
break;
case 's':
al_draw_filled_rectangle(x1, y1, x2, y2, al_map_rgb(255, 255, 0));
break;
}
}
}
al_flip_display();
}
int Game::parseMapFile() // returns value for m_levelWidth
{
ifstream mapFile;
mapFile.open(m_mapFile);
if (!mapFile.is_open())
{
fprintf(stderr, "Could not open map file.\n");
exit(0);
}
int highest_x = 0;
int lineNum = 1;
string line;
int commaCount = 0;
while (getline(mapFile, line))
{
char tile;
int row, col, width, height;
int num = -1;
for (size_t k = 0; k < line.length(); k++)
{
if (line[k] == ',')
{
commaCount++;
//num = -1;
}
else if (isdigit(line[k]))
{
if (num != -1)
{
num = (num * 10) + (line[k] - '0');
}
else
num = line[k] - '0';
continue;
}
if (k == 0) // tile char
{
tile = line[k];
if (tile != 'w' && tile != 'p' && tile != 's' && tile != 'm')
{
fprintf(stderr, "%s %c %s %d \n", "Map file error:\nInvalid tile char: '", tile, "' at line: ", lineNum);
exit(0);
}
}
else
{
switch (commaCount)
{
case 1:
break;
case 2: // row
row = num;
num = -1;
if (row < 0 || row >= NUM_ROWS)
{
fprintf(stderr, "%s %d %s %d \n", "Map file error:\nInvalid row: '", row, "' at line: ", lineNum);
exit(0);
}
break;
case 3: // col
col = num;
num = -1;
if (col < 0 || col >= MAX_NUM_COLS)
{
fprintf(stderr, "%s %d %s %d \n", "Map file error:\nInvalid col: '", col, "' at line: ", lineNum);
exit(0);
}
break;
case 4: // width
width = num;
num = -1;
if (width < 1 || width > MAX_NUM_COLS)
{
fprintf(stderr, "%s %d %s %d \n", "Map file error:\nInvalid width: '", width, "' at line: ", lineNum);
exit(0);
}
break;
case 5: // height
height = num;
num = -1;
if (height < 1 || height > NUM_ROWS)
{
fprintf(stderr, "%s %d %s %d \n", "Map file error:\nInvalid height: '", height, "' at line: ", lineNum);
exit(0);
}
break;
default:
fprintf(stderr, "%s %d \n", "Map file error:\nExtra parameters at line: ", lineNum);
exit(0);
}
}
}
// create the gameobject
switch (tile)
{
case 'w':
addNewStationaryObject(new Wall(row, col, width, height, this, lineNum));
break;
case 'p':
{
if (m_player != NULL)
{
fprintf(stderr, "%s%d\n", "Map file error:\nCan only have one player. Extra player at line: ", lineNum);
exit(0);
}
m_player = new Player(row, col, width, height, this, lineNum);
break;
}
case 's':
addNewStationaryObject(new StationaryEnemy(row, col, width, height, this, lineNum));
break;
case 'm':
break;
}
if (tile == 'w' || tile == 's')
{
StationaryObject* last = m_stationaryobjects.back();
int last_x = last->getX();
if (last_x > highest_x)
highest_x = last_x;
}
lineNum++;
commaCount = 0;
}
if (m_player == NULL)
{
fprintf(stderr, "%s\n", "Map file error:\nA player must be added.");
exit(0);
}
// remove chars in map for player
int player_row = m_player->getR();
int player_col = m_player->getC();
for (int r = player_row; r < (player_row + m_player->getHeight()); r++)
{
for (int c = player_col; c < (player_col + m_player->getWidth()); c++)
setMap(r, c, NULL);
}
// remove chars in map for movingobjects
// not yet implemented because there are not movingobjects yet.
mapFile.close();
return highest_x;
}
