1 files changed, 265 insertions, 0 deletions
diff --git a/src/helper.cpp b/src/helper.cpp
new file mode 100644
index 0000000..8d6f3ce
--- /dev/null
+++ b/src/helper.cpp
@@ -0,0 +1,265 @@
+#include "helper.hpp"
+#include <iostream>
+
+std::shared_ptr<std::vector<sf::Texture>>
+loadTextures(const char* path)
+{
+  int sprite_width = SPRITE_SIZE, sprite_height = SPRITE_SIZE;
+  sf::Image textureAtlas;
+  if (!textureAtlas.loadFromFile(path)) {
+    std::cerr << "Unable to load textures from file: " << path << std::endl;
+    throw std::runtime_error("Unable to load spritesheet");
+  }
+
+  textureAtlas.createMaskFromColor(GLOBAL_MASK);
+  auto imageSize = textureAtlas.getSize();
+
+  auto textures = std::make_shared<std::vector<sf::Texture>>();
+
+  for (int y = 0; y < imageSize.y; y += sprite_height) {
+    for (int x = 0; x < imageSize.x; x += sprite_width) {
+      sf::Texture t;
+      t.loadFromImage(textureAtlas,
+                      sf::IntRect(x, y, sprite_width, sprite_height));
+      textures->push_back(t);
+    }
+  }
+  return textures;
+}
+
+// increment through the textures
+inline int
+next(int* p, int max)
+{
+  int i = *p;
+  (*p) = (i + 1) % max;
+  return i;
+}
+
+std::shared_ptr<std::vector<sf::Sprite>>
+createBoard(std::shared_ptr<std::vector<sf::Texture>> textures)
+{
+  auto sprites = std::make_shared<std::vector<sf::Sprite>>();
+  sf::Texture& star_texture = (*textures)[STAR_TILE];
+  int blank_idx = 0;
+  int sp_idx = 0;
+  // p1 pieces
+  // p1 star
+  {
+    sf::Sprite s;
+    s.setTexture(star_texture);
+    s.setPosition(pos(3, 5));
+    sprites->push_back(s);
+  }
+  // p1 start
+  for (int i = 0; i < 3; i++) {
+    sf::Texture& t = (*textures)[P1_BOARD_TILES[next(&sp_idx, 2)]];
+    sf::Sprite s;
+    s.setTexture(t);
+    s.setPosition(pos(4 + i, 5));
+    sprites->push_back(s);
+  }
+  // p1 end
+  {
+    sf::Sprite goal;
+    goal.setTexture((*textures)[P1_END]);
+    goal.setPosition(pos(8, 5));
+    sprites->push_back(goal);
+
+    sf::Sprite end_star;
+    end_star.setTexture(star_texture);
+    end_star.setPosition(pos(9, 5));
+    sprites->push_back(end_star);
+
+    sf::Texture& t = (*textures)[P1_BOARD_TILES[next(&sp_idx, 2)]];
+    sf::Sprite s;
+    s.setTexture(t);
+    s.setPosition(pos(10, 5));
+    sprites->push_back(s);
+  }
+  // center pieces
+  for (int i = 0; i < 8; i++) {
+    sf::Sprite s;
+    if (i == 3) {
+      s.setTexture(star_texture);
+    } else {
+      sf::Texture& t = (*textures)[BLANK_TILES[next(&blank_idx, 3)]];
+      s.setTexture(t);
+    }
+    s.setPosition(pos(3 + i, 4));
+    sprites->push_back(s);
+  }
+  // p2 pieces
+  // p2 star
+  {
+    sf::Sprite s;
+    s.setTexture(star_texture);
+    s.setPosition(pos(3, 3));
+    sprites->push_back(s);
+  }
+  // p2 start
+  for (int i = 0; i < 3; i++) {
+    sf::Texture& t = (*textures)[P2_BOARD_TILES[next(&sp_idx, 2)]];
+    sf::Sprite s;
+    s.setTexture(t);
+    s.setPosition(pos(4 + i, 3));
+    sprites->push_back(s);
+  }
+  // p2 end
+  {
+    sf::Sprite goal;
+    goal.setTexture((*textures)[P2_END]);
+    goal.setPosition(pos(8, 3));
+    sprites->push_back(goal);
+
+    sf::Sprite end_star;
+    end_star.setTexture(star_texture);
+    end_star.setPosition(pos(9, 3));
+    sprites->push_back(end_star);
+
+    sf::Texture& t = (*textures)[P2_BOARD_TILES[next(&sp_idx, 2)]];
+    sf::Sprite end_tile;
+    end_tile.setTexture(t);
+    end_tile.setPosition(pos(10, 3));
+    sprites->push_back(end_tile);
+  }
+
+  return sprites;
+}
+
+sf::Font
+loadFont()
+{
+  sf::Font font;
+  if (!font.loadFromFile("./res/DejaVuSansMono.ttf")) {
+    std::cerr << "Unable to load font" << std::endl;
+    throw std::runtime_error("Unable to load font");
+  }
+  return font;
+}
+
+std::shared_ptr<struct piece_t>
+createPiece(int id, sf::Texture& texture)
+{
+
+  sf::Sprite s(texture);
+  auto p = std::make_shared<struct piece_t>();
+  p->id = id;
+  p->sprite = s;
+
+  return p;
+}
+
+std::shared_ptr<struct player_t>
+createPlayer(sf::Texture& texture)
+{
+  std::shared_ptr<struct player_t> player = std::make_shared<struct player_t>();
+  player->score = 0;
+  player->pieces = std::make_shared<std::vector<struct piece_t>>();
+  for (int i = 0; i < NUM_PIECES; i++) {
+    player->pieces->push_back(*createPiece(i + 1, texture));
+  }
+
+  return player;
+}
+
+std::shared_ptr<std::vector<struct dice_t>>
+createAllDice(sf::Texture& die0Texture, sf::Texture& die1Texture)
+{
+  auto dice = std::make_shared<std::vector<struct dice_t>>();
+
+  // create dice, even 0 odds 1
+  // there are 8 dice results int total
+  // 4 potential 0s
+  // 4 potential 1s
+  // The dice will be rendered in pairs
+  // [0, 1] will be the left most die
+  // [2, 3] will be the second
+  // ... and so on
+  // Since a die can only have 2 results (0 or 1)
+  // To simplify how we will be placing them, the results of the roll
+  // will dictate which value each die gets
+  for (int i = 0; i < 8; i++) {
+    if (i % 2 == 0) {
+      sf::Sprite s;
+      s.setTexture(die0Texture);
+      struct dice_t die = { 0, true, s };
+      dice->push_back(die);
+    } else {
+      sf::Sprite s;
+      s.setTexture(die1Texture);
+      struct dice_t die = { 1, false, s };
+      dice->push_back(die);
+    }
+  }
+
+  return dice;
+}
+
+std::shared_ptr<std::vector<sf::Sprite>>
+createRollSprites(sf::Texture& t1, sf::Texture& t2)
+{
+  auto sprites = std::make_shared<std::vector<sf::Sprite>>();
+
+  sprites->push_back(sf::Sprite(t1));
+  sprites->push_back(sf::Sprite(t2));
+
+  return sprites;
+}
+
+void
+makeNum(sf::Sprite* sprite_ptr,
+        int num,
+        std::shared_ptr<std::vector<sf::Texture>> textures)
+{
+  sf::Texture& t = (*textures)[NUMS_TILES[num]];
+  sprite_ptr->setTexture(t);
+};
+
+bool
+clickedPiece(sf::Vector2i mousePosition, struct piece_t* piece)
+{
+  return piece->sprite.getGlobalBounds().contains(mousePosition.x,
+                                                  mousePosition.y);
+}
+
+bool
+canMovePiece(struct piece_t* piece,
+             int roll,
+             std::shared_ptr<std::vector<struct piece_t>> myPieces,
+             std::shared_ptr<std::vector<struct piece_t>> enemyPieces)
+{
+  int next = piece->position + roll;
+
+  // rolled passed the exit
+  if (next > EXIT_SPACE) {
+    return false;
+  }
+
+  // colliding with another piece
+  for (struct piece_t& p : (*myPieces)) {
+    // cannot move onto your own piece
+    if (p.id != piece->id && p.position == next) {
+      return false;
+    }
+  }
+
+  // can't attack in safe square
+  for (struct piece_t& p : (*enemyPieces)) {
+    // cannot move onto a protected enemy piece
+    if (next == SAFE_SPACE && p.position == SAFE_SPACE) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+// This function takes in an row and col we want to put the sprite in
+// and translate it to a real position in the view
+// This is because we've ZOOMed in an that adjusts the entire view.
+sf::Vector2f
+pos(float c, float r)
+{
+  return { c * SPRITE_SIZE, r * SPRITE_SIZE };
+}