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Move render function to new source file

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This commit is contained in:
Matthias Schiffer 2014-09-22 21:59:13 +02:00
parent fe0c3b733a
commit c9b41bc102
4 changed files with 157 additions and 110 deletions
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1
src/CMakeLists.txt
View file

@ -6,6 +6,7 @@ add_executable(rpgedit
control/ImageLoader.cpp
control/MapContext.cpp
model/Map.cpp
view/MapView.cpp
)
set_target_properties(rpgedit PROPERTIES COMPILE_FLAGS "-std=c++11 -Wall ${SDL2_CFLAGS_OTHER}")
set_target_properties(rpgedit PROPERTIES LINK_FLAGS "${SDL2_LDFLAGS_OTHER}")

148
src/view/MapView.cpp Normal file
View file

@ -0,0 +1,148 @@
/*
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.
*/
#include "MapView.hpp"
namespace RPGEdit {
namespace View {
MapView::MapView(const std::shared_ptr<Window> &window0,
const std::shared_ptr<const Model::Map> &map0,
const std::vector<SDL_Surface *> &tiles,
const std::map<std::string, SDL_Surface *> &entities)
: 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);
for (const std::pair<std::string, SDL_Surface *> &entity : entities) {
entityTextures[entity.first] = SDL_CreateTextureFromSurface(window->getRenderer(), entity.second);
}
}
MapView::~MapView() {
SDL_DestroyTexture(tileTexture);
for (const std::pair<std::string, SDL_Texture *> &entity : entityTextures)
SDL_DestroyTexture(entity.second);
}
void MapView::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);
}
}
for (const std::shared_ptr<Model::Entity> &entity : map->getEntities()) {
std::pair<float, float> pos = entity->getPosition();
Direction dir = entity->getDirection();
SDL_Rect src = {
.x = 16*dir,
.y = 0,
.w = 16,
.h = 16,
};
SDL_Rect dst = {
.x = baseX + int(pos.first*tilePixels),
.y = baseY + int(pos.second*tilePixels),
.w = tilePixels,
.h = tilePixels,
};
SDL_RenderCopy(window->getRenderer(), entityTextures[entity->getName()], &src, &dst);
}
SDL_RenderPresent(window->getRenderer());
}
}
}

114
src/view/MapView.hpp
View file

@ -46,116 +46,12 @@ private:
public:
MapView(const std::shared_ptr<Window> &window0,
const std::shared_ptr<const Model::Map> &map0,
const std::vector<SDL_Surface *> &tiles,
const std::map<std::string, SDL_Surface *> &entities)
: window(window0), map(map0) {
uint32_t rmask, gmask, bmask, amask;
const std::shared_ptr<const Model::Map> &map0,
const std::vector<SDL_Surface *> &tiles,
const std::map<std::string, SDL_Surface *> &entities);
~MapView();
#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);
for (const std::pair<std::string, SDL_Surface *> &entity : entities) {
entityTextures[entity.first] = SDL_CreateTextureFromSurface(window->getRenderer(), entity.second);
}
}
~MapView() {
SDL_DestroyTexture(tileTexture);
for (const std::pair<std::string, SDL_Texture *> &entity : entityTextures)
SDL_DestroyTexture(entity.second);
}
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);
}
}
for (const std::shared_ptr<Model::Entity> &entity : map->getEntities()) {
std::pair<float, float> pos = entity->getPosition();
Direction dir = entity->getDirection();
SDL_Rect src = {
.x = 16*dir,
.y = 0,
.w = 16,
.h = 16,
};
SDL_Rect dst = {
.x = baseX + int(pos.first*tilePixels),
.y = baseY + int(pos.second*tilePixels),
.w = tilePixels,
.h = tilePixels,
};
SDL_RenderCopy(window->getRenderer(), entityTextures[entity->getName()], &src, &dst);
}
SDL_RenderPresent(window->getRenderer());
}
void render(float centerX, float centerY);
};
}

4
src/view/Window.hpp
View file

@ -26,6 +26,8 @@
#pragma once
#include <utility>
#include <SDL.h>
@ -57,7 +59,7 @@ public:
int w, h;
SDL_GetWindowSize(window, &w, &h);
return std::make_pair<>(w, h);
return std::pair<int, int>(w, h);
}
};