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-rw-r--r--.gitignore5
-rw-r--r--src/CMakeLists.txt1
-rw-r--r--src/level.cpp64
-rw-r--r--src/level.h7
-rw-r--r--src/main.cpp106
-rw-r--r--src/train.h10
-rw-r--r--src/util.cpp17
-rw-r--r--src/util.h21
-rw-r--r--src/window.cpp1
9 files changed, 125 insertions, 107 deletions
diff --git a/.gitignore b/.gitignore
index a072490..07e701c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,16 +7,15 @@ third-party/sdl2/sdl2-build/
third-party/sdl2/sdl2-src/
third-party/sdl2/sdl2/
-# Visual Studio
+# IDE generated files and folders
Debug/
Release/
.vs/
+.idea/
*.sln
*.vcxproj
*.vcxproj.filters
*.vcxproj.user
-
-
build/
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 7e71ff2..d290495 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -3,6 +3,7 @@ SET(SOURCES
level.cpp
main.cpp
train.cpp
+ util.cpp
window.cpp
)
diff --git a/src/level.cpp b/src/level.cpp
index b42608b..1e71799 100644
--- a/src/level.cpp
+++ b/src/level.cpp
@@ -1,7 +1,8 @@
#include "level.h"
+#include "util.h"
Level::Level(int width, int height)
- : m_width(width), m_height(height)
+ : m_width(width), m_height(height), m_tileSprites("../res/tiles.png")
{
m_tiles = new uint8_t[width * height];
memset(m_tiles, 0, width * height);
@@ -22,6 +23,67 @@ void Level::set(int x, int y, uint8_t tile)
m_tiles[x + y * m_width] = tile;
}
+void Level::draw(Bitmap& bitmap, int xo, int yo)
+{
+ for (int y = 0; y < 32; ++y) {
+ for (int x = 0; x < 32; ++x) {
+ auto tile = get(x, y);
+
+ int xx = (x - y) * (TileSize / 2) - xo;
+ int yy = (x + y) * (TileSize / 4) - yo;
+
+ int tx = (x + y) % 2;
+ int ty = 0;
+
+ if (tile == NorthSouth) {
+ tx = 0;
+ ty = 2;
+ } else if (tile == EastWest) {
+ tx = 1;
+ ty = 2;
+ } else if (tile == SouthEast) {
+ tx = 0;
+ ty = 3;
+ } else if (tile == SouthWest) {
+ tx = 3;
+ ty = 3;
+ } else if (tile == NorthWest) {
+ tx = 1;
+ ty = 3;
+ } else if (tile == NorthEast) {
+ tx = 2;
+ ty = 3;
+ }
+
+ bitmap.blit(m_tileSprites, xx, yy, tx * 24, ty * 24, TileSize, TileSize);
+ }
+ }
+}
+
+void Level::toggleTile(int x, int y)
+{
+ static const auto updateDirection = [&](int xt, int yt) {
+ if (get(xt, yt) > 0)
+ set(xt, yt, ChooseDirection(*this, xt, yt));
+ };
+
+ if (inBounds(x, y)) {
+ auto tile = get(x, y);
+
+ if (tile > 0)
+ tile = 0;
+ else
+ tile = ChooseDirection(*this, x, y);
+
+ m_tiles[x + y * m_width] = tile;
+
+ updateDirection(x - 1, y);
+ updateDirection(x + 1, y);
+ updateDirection(x, y - 1);
+ updateDirection(x, y + 1);
+ }
+}
+
RailDirection ChooseDirection(Level& level, int x, int y)
{
if (!level.inBounds(x, y)) return NorthSouth;
diff --git a/src/level.h b/src/level.h
index 344d35f..948dfcb 100644
--- a/src/level.h
+++ b/src/level.h
@@ -1,5 +1,6 @@
#pragma once
+#include "bitmap.h"
#include <cstdint>
#include <cstring>
@@ -10,9 +11,13 @@ public:
uint8_t get(int x, int y);
void set(int x, int y, uint8_t tile);
- bool inBounds(int x, int y) { return x >= 0 && x < m_width && y >= 0 && y < m_height; }
+ bool inBounds(int x, int y) const { return x >= 0 && x < m_width && y >= 0 && y < m_height; }
+
+ void draw(Bitmap& bitmap, int xo, int yo);
+ void toggleTile(int x, int y);
private:
+ Bitmap m_tileSprites;
int m_width, m_height;
uint8_t* m_tiles;
};
diff --git a/src/main.cpp b/src/main.cpp
index 4ac5167..7b22928 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,73 +1,9 @@
-#define SDL_MAIN_HANDLED
-#include <cmath>
-
#include "bitmap.h"
#include "level.h"
#include "train.h"
+#include "util.h"
#include "window.h"
-struct Point2D {
- float x, y;
-};
-
-Point2D screenToTile(Point2D source)
-{
- Point2D result;
-
- constexpr int TILE_SIZE = 24;
-
- float mx = source.x;
- float my = source.y;
- float xx = (mx / TILE_SIZE + my / (TILE_SIZE / 2.f));
- float yy = (my / (TILE_SIZE / 2.f) - (mx / TILE_SIZE));
-
- result.x = floor(xx - 1.5f); // Magic numbers
- result.y = floor(yy - 0.5f);
-
- return result;
-}
-
-void DrawLevel(Bitmap& bitmap, Bitmap& tiles, Level& level, int xo, int yo)
-{
- bitmap.clear(0xff224466);
-
- for (int y = 0; y < 32; ++y) {
- for (int x = 0; x < 32; ++x) {
- constexpr int TILE_SIZE = 24;
-
- auto tile = level.get(x, y);
-
- int xx = (x - y) * (TILE_SIZE / 2) - xo;
- int yy = (x + y) * (TILE_SIZE / 4) - yo;
-
- int tx = (x + y) % 2;
- int ty = 0;
-
- if (tile == NorthSouth) {
- tx = 0;
- ty = 2;
- } else if (tile == EastWest) {
- tx = 1;
- ty = 2;
- } else if (tile == SouthEast) {
- tx = 0;
- ty = 3;
- } else if (tile == SouthWest) {
- tx = 3;
- ty = 3;
- } else if (tile == NorthWest) {
- tx = 1;
- ty = 3;
- } else if (tile == NorthEast) {
- tx = 2;
- ty = 3;
- }
-
- bitmap.blit(tiles, xx, yy, tx * 24, ty * 24, TILE_SIZE, TILE_SIZE);
- }
- }
-}
-
int main(int argc, char** argv)
{
constexpr int Height = 240;
@@ -76,9 +12,7 @@ int main(int argc, char** argv)
Window window("Nonortho", Width, Height, Scale);
- Bitmap tiles("../res/tiles.png");
Level level(32, 32);
-
Bitmap bitmap(Width, Height);
Train car;
@@ -88,38 +22,19 @@ int main(int argc, char** argv)
window.onMouseDown([&](int button, int x, int y) {
if (button == 1) {
- static const auto update_direction = [&](int xt, int yt) {
- if (level.get(xt, yt) > 0)
- level.set(xt, yt, ChooseDirection(level, xt, yt));
- };
+ int mx = x / Scale + xOffs;
+ int my = y / Scale + yOffs;
- float mx = x / Scale + xOffs;
- float my = y / Scale + yOffs;
- Point2D tilePos = screenToTile({ mx, my });
-
- if (level.inBounds(tilePos.x, tilePos.y)) {
- auto tile = level.get(tilePos.x, tilePos.y);
-
- if (tile > 0)
- tile = 0;
- else
- tile = ChooseDirection(level, tilePos.x, tilePos.y);
-
- level.set(tilePos.x, tilePos.y, tile);
-
- update_direction(tilePos.x - 1, tilePos.y);
- update_direction(tilePos.x + 1, tilePos.y);
- update_direction(tilePos.x, tilePos.y - 1);
- update_direction(tilePos.x, tilePos.y + 1);
- }
+ Point2D tilePos = ScreenToTile({ mx, my });
+ level.toggleTile(tilePos.x, tilePos.y);
} else if (button == 2 && !isDragging) {
xDrag = x;
yDrag = y;
isDragging = true;
} else {
- float mx = x / Scale + xOffs;
- float my = y / Scale + yOffs;
- auto pos = screenToTile({ mx, my });
+ int mx = x / Scale + xOffs;
+ int my = y / Scale + yOffs;
+ auto pos = ScreenToTile({ mx, my });
car.setPosition(pos.x, pos.y);
}
});
@@ -140,9 +55,12 @@ int main(int argc, char** argv)
while (!window.shouldClose()) {
window.update();
- DrawLevel(bitmap, tiles, level, xOffs, yOffs);
+ bitmap.clear(0xff224466);
+
+ level.draw(bitmap, xOffs, yOffs);
car.update(level);
car.draw(bitmap, xOffs, yOffs);
+
window.draw(bitmap);
}
diff --git a/src/train.h b/src/train.h
index 43892f9..6f5cd23 100644
--- a/src/train.h
+++ b/src/train.h
@@ -1,13 +1,7 @@
#pragma once
#include "bitmap.h"
-
-enum CarDirection {
- North,
- East,
- South,
- West
-};
+#include "util.h"
class Level;
@@ -30,6 +24,6 @@ private:
float m_speed { 0.05f };
float m_progress { 0.f };
- CarDirection m_dir { North };
+ Direction m_dir { North };
int m_nextX { 0 }, m_nextY { 0 };
};
diff --git a/src/util.cpp b/src/util.cpp
new file mode 100644
index 0000000..3eaf143
--- /dev/null
+++ b/src/util.cpp
@@ -0,0 +1,17 @@
+#include "util.h"
+#include <cmath>
+
+Point2D ScreenToTile(Point2D source)
+{
+ Point2D result {};
+
+ auto fx = (float)source.x;
+ auto fy = (float)source.y;
+ float xx = (fx / TileSize + fy / (TileSize / 2.f));
+ float yy = (fy / (TileSize / 2.f) - (fx / TileSize));
+
+ result.x = (int)floorf(xx - 1.5f); // Magic numbers
+ result.y = (int)floorf(yy - 0.5f);
+
+ return result;
+} \ No newline at end of file
diff --git a/src/util.h b/src/util.h
new file mode 100644
index 0000000..80b7896
--- /dev/null
+++ b/src/util.h
@@ -0,0 +1,21 @@
+#pragma once
+
+#include <cmath>
+
+struct Point2D {
+ int x, y;
+};
+
+enum Direction {
+ North,
+ East,
+ South,
+ West
+};
+
+constexpr int TileSize = 24;
+
+/*
+ * Converts screen coordinates to a tile on the map
+ */
+Point2D ScreenToTile(Point2D); \ No newline at end of file
diff --git a/src/window.cpp b/src/window.cpp
index a907aba..16c8d24 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -1,5 +1,6 @@
#include "window.h"
+#define SDL_MAIN_HANDLED
#include <SDL2/SDL.h>
#include <cstdio>
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-27 23:42:57 +0000