Implemented map rendering and basic collision

Only wall and platform collision currently works, and map edges are not currently implemented.

1 files changed, 143 insertions, 0 deletions

@@ -0,0 +1,143 @@
+#include "mapping.h"
+#include "components/mappable.h"
+#include "game.h"
+#include "consts.h"
+
+#include <iostream>
+
+template <typename Storage>
+inline void addBoundary(
+  Storage& boundaries,
+  int axis,
+  int lower,
+  int upper,
+  MappableComponent::Boundary::Type type)
+{
+  boundaries.emplace(std::piecewise_construct,
+    std::tie(axis),
+    std::tie(axis, lower, upper, type));
+}
+
+void MappingSystem::render(Texture& texture)
+{
+  auto entities = game_.getEntityManager().getEntitiesWithComponents<
+    MappableComponent>();
+
+  for (id_type entity : entities)
+  {
+    auto& mappable = game_.getEntityManager().
+      getComponent<MappableComponent>(entity);
+
+    const Map& map = game_.getWorld().getMap(mappable.getMapId());
+
+    for (int i = 0; i < MAP_WIDTH * MAP_HEIGHT; i++)
+    {
+      int x = i % MAP_WIDTH;
+      int y = i / MAP_WIDTH;
+      int tile = map.getTiles()[i];
+
+      if (tile > 0)
+      {
+        Rectangle dst {
+          x * TILE_WIDTH,
+          y * TILE_HEIGHT,
+          TILE_WIDTH,
+          TILE_HEIGHT};
+
+        Rectangle src {
+          (tile % TILESET_COLS) * TILE_WIDTH,
+          (tile / TILESET_COLS) * TILE_HEIGHT,
+          TILE_WIDTH,
+          TILE_HEIGHT};
+
+        texture.blit(mappable.getTileset(), std::move(src), std::move(dst));
+      }
+    }
+
+    int startX = ((GAME_WIDTH / TILE_WIDTH) / 2) - (map.getTitle().size() / 2);
+    for (size_t i = 0; i < map.getTitle().size(); i++)
+    {
+      Rectangle src {
+        (map.getTitle()[i] % FONT_COLS) * TILE_WIDTH,
+        (map.getTitle()[i] / FONT_COLS) * TILE_HEIGHT,
+        TILE_WIDTH,
+        TILE_HEIGHT};
+
+      Rectangle dst {
+        (startX + static_cast<int>(i)) * TILE_WIDTH,
+        24 * TILE_HEIGHT,
+        TILE_WIDTH,
+        TILE_HEIGHT};
+
+      texture.blit(mappable.getFont(), std::move(src), std::move(dst));
+    }
+  }
+}
+
+void MappingSystem::loadMap(size_t mapId)
+{
+  id_type mapEntity = game_.getEntityManager().emplaceEntity();
+
+  auto& mappable = game_.getEntityManager().
+    emplaceComponent<MappableComponent>(mapEntity,
+      Texture("res/tiles.png"),
+      Texture("res/font.bmp"));
+
+  mappable.setMapId(mapId);
+
+  const Map& map = game_.getWorld().getMap(mappable.getMapId());
+
+  for (size_t i = 0; i < MAP_WIDTH * MAP_HEIGHT; i++)
+  {
+    size_t x = i % MAP_WIDTH;
+    size_t y = i / MAP_WIDTH;
+    int tile = map.getTiles()[i];
+
+    if ((tile >= 5) && (tile <= 7))
+    {
+      addBoundary(
+        mappable.getDownBoundaries(),
+        y * TILE_HEIGHT,
+        x * TILE_WIDTH,
+        (x + 1) * TILE_WIDTH,
+        MappableComponent::Boundary::Type::platform);
+    } else if ((tile > 0) && (tile < 28))
+    {
+      addBoundary(
+        mappable.getRightBoundaries(),
+        x * TILE_WIDTH,
+        y * TILE_HEIGHT,
+        (y+1) * TILE_HEIGHT,
+        MappableComponent::Boundary::Type::wall);
+
+      addBoundary(
+        mappable.getLeftBoundaries(),
+        (x+1) * TILE_WIDTH,
+        y * TILE_HEIGHT,
+        (y+1) * TILE_HEIGHT,
+        MappableComponent::Boundary::Type::wall);
+
+      addBoundary(
+        mappable.getDownBoundaries(),
+        y * TILE_HEIGHT,
+        x * TILE_WIDTH,
+        (x+1) * TILE_WIDTH,
+        MappableComponent::Boundary::Type::wall);
+
+      addBoundary(
+        mappable.getUpBoundaries(),
+        (y+1) * TILE_HEIGHT,
+        x * TILE_WIDTH,
+        (x+1) * TILE_WIDTH,
+        MappableComponent::Boundary::Type::wall);
+    } else if (tile == 42)
+    {
+      addBoundary(
+        mappable.getDownBoundaries(),
+        y * TILE_HEIGHT,
+        x * TILE_WIDTH,
+        (x+1) * TILE_WIDTH,
+        MappableComponent::Boundary::Type::danger);
+    }
+  }
+}