Initial commit

2 files changed, 198 insertions, 0 deletions

diff --git a/src/view/MapView.hpp b/src/view/MapView.hpp
new file mode 100644
index 0000000..9150753
--- /dev/null
+++ b/src/view/MapView.hpp
@@ -0,0 +1,132 @@
+/*
+  Copyright (c) 2014, Matthias Schiffer <mschiffer@universe-factory.net>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation
+       and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+#pragma once
+
+#include "Window.hpp"
+#include "../model/Map.hpp"
+
+#include <cmath>
+
+
+namespace RPGEdit {
+
+namespace View {
+
+class MapView {
+private:
+	std::shared_ptr<Window> window;
+	std::shared_ptr<const Model::Map> map;
+	SDL_Texture *tileTexture;
+
+public:
+	MapView(const std::shared_ptr<Window> &window0,
+		const std::shared_ptr<const Model::Map> &map0,
+		const std::vector<SDL_Surface *> tiles)
+		: window(window0), map(map0) {
+		uint32_t rmask, gmask, bmask, amask;
+
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+		rmask = 0xff000000;
+		gmask = 0x00ff0000;
+		bmask = 0x0000ff00;
+		amask = 0x000000ff;
+#else
+		rmask = 0x000000ff;
+		gmask = 0x0000ff00;
+		bmask = 0x00ff0000;
+		amask = 0xff000000;
+#endif
+
+		SDL_Surface *surface = SDL_CreateRGBSurface(0, 16*tiles.size(), 16, 32, rmask, gmask, bmask, amask);
+		SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_NONE);
+
+		for (size_t i = 0; i < tiles.size(); i++) {
+			SDL_Rect rect = {
+				.x = int(16*i),
+				.y = 0,
+				.w = 0,
+				.h = 0,
+			};
+
+			SDL_BlitSurface(tiles[i], nullptr, surface, &rect);
+		}
+
+		tileTexture = SDL_CreateTextureFromSurface(window->getRenderer(), surface);
+		SDL_FreeSurface(surface);
+	}
+
+	~MapView() {
+		SDL_DestroyTexture(tileTexture);
+	}
+
+	void render(float centerX, float centerY) {
+		SDL_RenderClear(window->getRenderer());
+
+		std::pair<int, int> viewport = window->getViewport();
+
+		float pixels = std::max(viewport.first/16.0f, viewport.second/12.0f);
+		int tilePixels = 16 * std::ceil(pixels / 16);
+
+		float tilesW = viewport.first / tilePixels;
+		float tilesH = viewport.second / tilePixels;
+
+		int minX = std::floor(centerX - tilesW/2 - 0.5f), maxX = std::ceil(centerX + tilesW/2 + 0.5f);
+		int minY = std::floor(centerY - tilesH/2 - 0.5f), maxY = std::ceil(centerY + tilesH/2 + 0.5f);
+
+		int baseX = viewport.first/2 - (centerX + 0.5f)*tilePixels, baseY = viewport.second/2 - (centerY + 0.5f)*tilePixels;
+
+		for (int x = minX; x <= maxX; x++) {
+			for (int y = minY; y <= maxY; y++) {
+				uint32_t tile = map->getTileAt(x, y);
+				if (!tile)
+					continue;
+
+				SDL_Rect src = {
+					.x = int(16*(tile-1)),
+					.y = 0,
+					.w = 16,
+					.h = 16,
+				};
+
+				SDL_Rect dst = {
+					.x = baseX + x*tilePixels,
+					.y = baseY + y*tilePixels,
+					.w = tilePixels,
+					.h = tilePixels,
+				};
+
+				SDL_RenderCopy(window->getRenderer(), tileTexture, &src, &dst);
+			}
+		}
+
+		SDL_RenderPresent(window->getRenderer());
+	}
+};
+
+}
+
+}
diff --git a/src/view/Window.hpp b/src/view/Window.hpp
new file mode 100644
index 0000000..c586b57
--- /dev/null
+++ b/src/view/Window.hpp
@@ -0,0 +1,66 @@
+/*
+  Copyright (c) 2014, Matthias Schiffer <mschiffer@universe-factory.net>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation
+       and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+#pragma once
+
+#include <SDL.h>
+
+
+namespace RPGEdit {
+
+namespace View {
+
+class Window {
+private:
+	SDL_Window *window;
+	SDL_Renderer *renderer;
+
+public:
+	Window() {
+		window = SDL_CreateWindow("RPGedit", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_OPENGL|SDL_WINDOW_RESIZABLE);
+		renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED|SDL_RENDERER_PRESENTVSYNC);
+	}
+
+	~Window() {
+		SDL_DestroyRenderer(renderer);
+		SDL_DestroyWindow(window);
+	}
+
+	SDL_Renderer * getRenderer() {
+		return renderer;
+	}
+
+	std::pair<int, int> getViewport() {
+		int w, h;
+		SDL_GetWindowSize(window, &w, &h);
+
+		return std::make_pair<>(w, h);
+	}
+};
+
+}
+
+}