bool Agent::collideWithLevel(const std::vector<std::string>& levelData) {
std::vector<glm::vec2> collideTilePositions;
// Check the four corners
// First corner
checkTilePosition(levelData,
collideTilePositions,
_position.x,
_position.y);
// Second Corner
checkTilePosition(levelData,
collideTilePositions,
_position.x + AGENT_WIDTH,
_position.y);
// Third Corner
checkTilePosition(levelData,
collideTilePositions,
_position.x,
_position.y + AGENT_WIDTH);
// Third Corner
checkTilePosition(levelData,
collideTilePositions,
_position.x + AGENT_WIDTH,
_position.y + AGENT_WIDTH);
// Check if there was no collision
if (collideTilePositions.size() == 0) {
return false;
}
// Do the collision
for (int i = 0; i < collideTilePositions.size(); i++) {
collideWithTile(collideTilePositions[i]);
}
return true;
}
// Choose which tiles to check based on movement
void Player::detectTileCollisions(World *ptr) {
sf::Vector2i currField = ptr->getNField(position);
int width = ptr->mapDimensions.x;
/* Fig.1: Tile checking pattern.
*
* % % % . . % . . . % . .
* . ^ . . > % . v . % < .
* . . . . . % % % % % . .
*
* */
if(goDown) {
collideWithTile(ptr, (currField.y + 1) * width + (currField.x - 1) );
collideWithTile(ptr, (currField.y + 1) * width + (currField.x ) );
collideWithTile(ptr, (currField.y + 1) * width + (currField.x + 1) );
}
if(goUp) {
collideWithTile(ptr, (currField.y - 1) * width + (currField.x - 1) );
collideWithTile(ptr, (currField.y - 1) * width + (currField.x ) );
collideWithTile(ptr, (currField.y - 1) * width + (currField.x + 1) );
}
if(goRight){
collideWithTile(ptr, (currField.y + 1) * width + (currField.x + 1) );
collideWithTile(ptr, (currField.y ) * width + (currField.x + 1) );
collideWithTile(ptr, (currField.y - 1) * width + (currField.x + 1) );
}
if(goLeft) {
collideWithTile(ptr, (currField.y + 1) * width + (currField.x - 1) );
collideWithTile(ptr, (currField.y ) * width + (currField.x - 1) );
collideWithTile(ptr, (currField.y - 1) * width + (currField.x - 1) );
}
}
