added basic mappers

mappers/mapperbase.cpp

@@ -0,0 +1,16 @@
+#pragma once
+
+#include <stdint.h>
+
+#include "../datatypes.cpp"
+#include "../helpers.cpp"
+
+namespace UwU {
+  template <class MapperT>
+  class MapperBase {
+    public:
+      Coord2 map(uint16_t x, uint16_t y) {
+        return static_cast<MapperT*>(this)->map(x, y);
+     }
+  };
+}

mappers/mappers.h

@@ -0,0 +1,4 @@
+#include "mapperbase.cpp"
+#include "nullmapper.cpp"
+#include "offsetmapper.cpp"
+#include "tilemapper.cpp"

mappers/nullmapper.cpp

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <stdint.h>
+
+#include "../datatypes.cpp"
+#include "../helpers.cpp"
+#include "mapperbase.cpp"
+
+namespace UwU {
+  class NullMapper : public MapperBase<NullMapper> {
+    public:
+      NullMapper() {}
+
+      Coord2 map(uint16_t x, uint16_t y) {
+        return Coord2(x, y);
+     }
+  };
+}

mappers/offsetmapper.cpp

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <stdint.h>
+
+#include "../datatypes.cpp"
+#include "../helpers.cpp"
+#include "mapperbase.cpp"
+
+namespace UwU {
+  class OffsetMapper : public MapperBase<OffsetMapper> {
+    public:
+      OffsetMapper(uint16_t x0, uint16_t y0) {
+        this->x0 = x0;
+        this->y0 = y0;
+      }
+      uint16_t x0, y0;
+
+      Coord2 map(uint16_t x, uint16_t y) {
+        uint16_t u = x -x0;
+        uint16_t v = y -y0;
+        return Coord2(u, v);
+     }
+  };
+}

mappers/tilemapper.cpp

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <stdint.h>
+
+#include "../datatypes.cpp"
+#include "../helpers.cpp"
+#include "mapperbase.cpp"
+
+namespace UwU {
+  class TileMapper : public MapperBase<TileMapper> { // not actually tilemapping yet
+    public:
+      TileMapper(uint16_t x0, uint16_t y0) {
+        this->x0 = x0;
+        this->y0 = y0;
+      }
+      uint16_t x0, y0;
+
+      Coord2 map(uint16_t x, uint16_t y) {
+        uint16_t u = x -x0;
+        uint16_t v = y -y0;
+        return Coord2(u, v);
+     }
+  };
+}