我目前正在开发 2D 等距 map 编辑器。 我显示包含点和纹理的实体(立方体,播放器)。 每个立方体由12个点组成。(12个点,但在sfml(sf::VertexArray)显示时作为4个点的3条边处理。
(我知道我时常包含一些“.cpp”,我的 IDE(visual studio)有问题,我正在尝试解决,请不要关心它。)
main.cpp
#pragma once
#include "globalfunctions.h" //global functions + main headers + class headers
int main() {
int mapSize = 0;
int cubeSize = 0;
cout << "Map size: "; cin >> mapSize; cout << endl;
cout << "Cube size: "; cin >> cubeSize; cout << endl;
int windowWidth = (mapSize * cubeSize) - (cubeSize * 2);
int windowHeight = ((mapSize * cubeSize) - (cubeSize * 2)) / 2;
renderWindow window(windowWidth, windowHeight, mapSize, cubeSize);
int nbMaxTextures = 9;
for (int t = 0; t < nbMaxTextures; t++) {
window.loadTexture("test", t);
}
window.run();
return EXIT_SUCCESS;
}
全局函数.h
#pragma once
#include <SFML/System.hpp>
#include <SFML/Graphics.hpp>
#include <SFML/Window.hpp>
#include <iostream>
#include <math.h>
//#include <sstream>
#include <vector>
using namespace std;
sf::Vector2u isometricToCartesian(int i, int j, int cubeSize) {
sf::Vector2u carth;
carth.x = (j - i) * (cubeSize / 2);
carth.y = (j + i) * (cubeSize / 4);
return carth;
}
sf::Vector2u cartesianToIsometric(int x, int y, int cubeSize) {//TODO
sf::Vector2u iso;
iso.x = 0;
iso.y = 0;
return iso;
}
#include "entity.h"
#include "renderWindow.h"
renderWindow.h
#pragma once
class renderWindow {
public:
renderWindow(float WIDTH, float HEIGHT, int MAPSIZE, int CUBESIZE);
void run();
void loadTexture(sf::String folder, int numTexture);
//SETTERS
//...
//GETTERS
//...
private:
int mCurrentLayerID;
int mMapSize;
int mCubeSize;
int mSelectedTexture;
vector<entity> mMap;
sf::RenderWindow mWindow;
vector<sf::Texture> mTextures;
sf::Texture mMemoryTexture;
void processEvent();
void update(sf::Time deltaTime);
void render();
//CUBE ACTION-------------------------------------------
void addCube(int layerID, float x, float y);
entity& getCube(int ID);
entity& getCubeAt(float x, float y);
vector<sf::VertexArray> loadCube(int cubeID);//UPDATE DATA LIKE COORDINATES -> create/chnge the vertex
void drawCube(int cubeID);//draw the vertex
//VARIABLES
vector<sf::VertexArray> verticesSide1;
vector<sf::VertexArray> verticesSide2;
vector<sf::VertexArray> verticesSide3;
//CUBE ACTION-------------------------------------------
};
#include "renderWindow.cpp"
renderWindow.cpp
#pragma once
renderWindow::renderWindow(float WIDTH, float HEIGHT, int MAPSIZE, int CUBESIZE) : mWindow(sf::VideoMode(WIDTH, HEIGHT), "") {
mMapSize = MAPSIZE;
mCubeSize = CUBESIZE;
mSelectedTexture = 6;
mCurrentLayerID = -1;
int x = 0;
int y = 0;
//default layer
for (int j = 0; j < mMapSize; j++) {
for (int i = 0; i < mMapSize; i++) {
x = isometricToCartesian(i, j, mCubeSize).x;
y = isometricToCartesian(i, j, mCubeSize).y;
addCube(0, x, y);
}
}
for (int c = 0; c < mMap.size(); c++) {
verticesSide1.push_back(loadCube(c)[0]);
verticesSide2.push_back(loadCube(c)[1]);
verticesSide3.push_back(loadCube(c)[2]);
//then only do that when something the cube's coordinate changed
}
}
void renderWindow::run() {
sf::Clock clock;
sf::Time timeSinceLastUpdate = sf::Time::Zero;
sf::Time TimePerFrame = sf::seconds(1.f / 60.f);
while (mWindow.isOpen()) {
processEvent();
timeSinceLastUpdate += clock.restart();
while (timeSinceLastUpdate > TimePerFrame) {
timeSinceLastUpdate -= TimePerFrame;
processEvent();
update(TimePerFrame);
}
render();
}
}
void renderWindow::loadTexture(sf::String folder, int numTexture) {
if (mMemoryTexture.loadFromFile("textures/" + folder + "/" + to_string(numTexture) + ".jpg"))
mTextures.push_back(mMemoryTexture);
else
cout << "Texture n°" << numTexture << " as failed to load." << endl;
}
//SETTERS
//...
//GETTERS
//...
//PRIVATE METHODE
void renderWindow::processEvent() {
sf::Event event;
while (mWindow.pollEvent(event)) {
switch (event.type) {
case sf::Event::Closed:
mWindow.close();
break;
case sf::Event::KeyPressed:
if (event.key.code == sf::Keyboard::Escape)
mWindow.close();
break;
case sf::Event::MouseButtonPressed:
if (event.MouseButtonPressed == sf::Mouse::Left)
getCubeAt(event.mouseButton.x, event.mouseButton.y).setTexture(0, mSelectedTexture);//TEST
getCubeAt(event.mouseButton.x, event.mouseButton.y).setTexture(1, mSelectedTexture + 1);//TEST
getCubeAt(event.mouseButton.x, event.mouseButton.y).setTexture(2, mSelectedTexture + 2);//TEST
break;
/*case sf::Event::MouseMoved:
cout << "(" << event.mouseMove.x << ", " << event.mouseMove.y << ")" << endl;
break;*/
}
}
}
void renderWindow::update(sf::Time deltaTime) {
//REMEMBER: distance = speed * time
//MOVEMENT, ANIMATIONS ETC. ...
}
void renderWindow::render() {
mWindow.clear();
for (int c = 0; c < mMap.size(); c++) {
drawCube(c);
}
mWindow.display();
}
//CUBE ACTION-------------------------------------------
void renderWindow::addCube(int layerID, float x, float y) {
//Thoses make the code more readable:
int half_cubeSize = mCubeSize / 2;
int oneQuarter_cubeSize = mCubeSize / 4;
int twoQuarter_cubeSize = oneQuarter_cubeSize * 2;
int treeQuarter_cubeSize = oneQuarter_cubeSize * 3;
mCurrentLayerID = layerID;
entity dummy(mMap.size(), 0, layerID);
dummy.addPoint(12);
dummy.addTexture(6);
dummy.addTexture(7);
dummy.addTexture(8);
//SIDE 1------------------------------------------------
dummy.setPoint(0, x, y + oneQuarter_cubeSize);
dummy.setPoint(1, x + half_cubeSize, y + twoQuarter_cubeSize);
dummy.setPoint(2, x + half_cubeSize, y + mCubeSize);
dummy.setPoint(3, x, y + treeQuarter_cubeSize);
//SIDE 2------------------------------------------------
dummy.setPoint(4, x + half_cubeSize, y + twoQuarter_cubeSize);
dummy.setPoint(5, x + mCubeSize, y + oneQuarter_cubeSize);
dummy.setPoint(6, x + mCubeSize, y + treeQuarter_cubeSize);
dummy.setPoint(7, x + half_cubeSize, y + mCubeSize);
//SIDE 3------------------------------------------------
dummy.setPoint(8, x, y + oneQuarter_cubeSize);
dummy.setPoint(9, x + half_cubeSize, y);
dummy.setPoint(10, x + mCubeSize, y + oneQuarter_cubeSize);
dummy.setPoint(11, x + half_cubeSize, y + twoQuarter_cubeSize);
mMap.push_back(dummy);
}
entity& renderWindow::getCube(int ID) {
for (int c = 0; c < mMap.size(); c++) {
if (mMap[c].getID() == ID)
return mMap[c];
}
}
entity& renderWindow::getCubeAt(float x, float y) {//TO DO
return entity(-1, 0, 0);
}
vector<sf::VertexArray> renderWindow::loadCube(int cubeID) {
vector<sf::VertexArray> vertices;
vertices.push_back(sf::VertexArray());
vertices.push_back(sf::VertexArray());
vertices.push_back(sf::VertexArray());
vertices[0].setPrimitiveType(sf::Quads);
vertices[0].resize(4);
vertices[1].setPrimitiveType(sf::Quads);
vertices[1].resize(4);
vertices[2].setPrimitiveType(sf::Quads);
vertices[2].resize(4);
sf::Vector2f tv0 = sf::Vector2f(0, 0);
sf::Vector2f tv1 = sf::Vector2f(mCubeSize, 0);
sf::Vector2f tv2 = sf::Vector2f(mCubeSize, mCubeSize);
sf::Vector2f tv3 = sf::Vector2f(0, mCubeSize);
sf::Vector2f v0 = sf::Vector2f(getCube(cubeID).getPoint(0, 0), getCube(cubeID).getPoint(0, 1));
sf::Vector2f v1 = sf::Vector2f(getCube(cubeID).getPoint(1, 0), getCube(cubeID).getPoint(1, 1));
sf::Vector2f v2 = sf::Vector2f(getCube(cubeID).getPoint(2, 0), getCube(cubeID).getPoint(2, 1));
sf::Vector2f v3 = sf::Vector2f(getCube(cubeID).getPoint(3, 0), getCube(cubeID).getPoint(3, 1));
sf::Vector2f v4 = sf::Vector2f(getCube(cubeID).getPoint(4, 0), getCube(cubeID).getPoint(4, 1));
sf::Vector2f v5 = sf::Vector2f(getCube(cubeID).getPoint(5, 0), getCube(cubeID).getPoint(5, 1));
sf::Vector2f v6 = sf::Vector2f(getCube(cubeID).getPoint(6, 0), getCube(cubeID).getPoint(6, 1));
sf::Vector2f v7 = sf::Vector2f(getCube(cubeID).getPoint(7, 0), getCube(cubeID).getPoint(7, 1));
sf::Vector2f v8 = sf::Vector2f(getCube(cubeID).getPoint(8, 0), getCube(cubeID).getPoint(8, 1));
sf::Vector2f v9 = sf::Vector2f(getCube(cubeID).getPoint(9, 0), getCube(cubeID).getPoint(9, 1));
sf::Vector2f v10 = sf::Vector2f(getCube(cubeID).getPoint(10, 0), getCube(cubeID).getPoint(10, 1));
sf::Vector2f v11 = sf::Vector2f(getCube(cubeID).getPoint(11, 0), getCube(cubeID).getPoint(11, 1));
vertices[0][0] = sf::Vertex(v0, tv0);
vertices[0][1] = sf::Vertex(v1, tv1);
vertices[0][2] = sf::Vertex(v2, tv2);
vertices[0][3] = sf::Vertex(v3, tv3);
vertices[1][0] = sf::Vertex(v4, tv0);
vertices[1][1] = sf::Vertex(v5, tv1);
vertices[1][2] = sf::Vertex(v6, tv2);
vertices[1][3] = sf::Vertex(v7, tv3);
vertices[2][0] = sf::Vertex(v8, tv0);
vertices[2][1] = sf::Vertex(v9, tv1);
vertices[2][2] = sf::Vertex(v10, tv2);
vertices[2][3] = sf::Vertex(v11, tv3);
return vertices;
}
void renderWindow::drawCube(int cubeID) {
mWindow.draw(verticesSide1[cubeID], &mTextures[getCube(cubeID).getTexture(0)]);
mWindow.draw(verticesSide2[cubeID], &mTextures[getCube(cubeID).getTexture(1)]);
mWindow.draw(verticesSide3[cubeID], &mTextures[getCube(cubeID).getTexture(2)]);
}
//CUBE ACTION-------------------------------------------
实体.h
#pragma once
class entity {
public:
entity();
entity(int id, int type, int numlayer);
void addPoint(int nbPoints);
void addTexture(int numTexture);
//SETTERS
void setPoint(int numPoint, float x, float y);
void setTexture(int textureID, int numTexture);
//GETTERS
int getID();
float getPoint(int numPoint, int numIndex);//if numIndex = 0 -> x || if numIndex = 1 -> y
int getType();
int getNumLayer();
int getTexture(int numTexture);
private:
int mID;
int mType;
int mNumLayer;
vector<sf::Vector2u> mPoints;
vector<int> mTextures;
};
#include "entity.cpp"
实体.cpp
#pragma once
entity::entity() {
mID = 0;
mType = -1;
mNumLayer = 0;
}
entity::entity(int id, int type, int numlayer) {
mID = id;
mType = type;
mNumLayer = numlayer;
}
void entity::addPoint(int nbPoints) {
mPoints.clear();
int newSize = 0;
for (int p = 0; p < nbPoints; p++) {
newSize++;
}
mPoints = vector<sf::Vector2u>(newSize);
}
void entity::addTexture(int numTexture) {
mTextures.push_back(numTexture);
}
//SETTERS
void entity::setPoint(int numPoint, float x, float y) {
mPoints[numPoint].x = x;
mPoints[numPoint].y = y;
}
void entity::setTexture(int textureID, int numTexture) {
mTextures[textureID] = numTexture;
}
//GETTERS
int entity::getID() {
return mID;
}
float entity::getPoint(int numPoint, int numIndex) {
if (numIndex == 0)
return mPoints[numPoint].x;
else
return mPoints[numPoint].y;
}
int entity::getType() {
return mType;
}
int entity::getNumLayer() {
return mNumLayer;
}
int entity::getTexture(int numTexture) {
return mTextures[numTexture];
}
我做了很多测试,太多了,所以我现在不会发布它们,但如果您有任何问题,请随时提问。
这是标题中描述的问题:
这里是只显示一张脸的屏幕(代码中的顺序相同):
我唯一不明白的是,如果您手动输入坐标,单独显示的立方体工作得很好。即使是扩展的。但是坐标公式没问题...(我注意到 15x15 map 的立方体 n°50 和 64x64 立方体显示一个宽度为“无限”的矩形) 如果纹理被扩展(可能无限大),这表明坐标在某处不断增加?那么,为什么立方体仍然放置得很好?
最佳答案
不是真正的答案(因为代码无论如何都会被重写)所以对新代码的提示很少(其中一些已经在评论中提到)。
图 block 集
在最终的等距引擎中使用 Sprite 。它们速度更快并且支持像素艺术。出于我的目的,我使用这两个免费使用的 tilesets (
64x64
) 的编译:两者兼容。我编译和编辑它们以适应我的引擎的需要。所以这就是我使用的(仍在进行中):
白色
0x00FFFFFF
透明的意思。 Sprite 是不够的。我添加了有关瓷砖高度和旋转的信息。如果您从左上角看到前 4 个图 block ,它们都是旋转 90 度后的相同内容。所以我所有的瓷砖都有 4 个瓷砖的索引(90 度旋转)
int rot[4]
.这样我就可以旋转整个 map 或只是查看。我编译了集合,因此旋转彼此相邻。有 3 个选项:-
tile[ix].rot[]={ ix,ix,ix,ix };
其中ix
是没有旋转的平铺(地面) -
tile[ix].rot[]={ ix,ix+1,ix,ix+1 };
其中ix
是2
的瓷砖旋转(右中间那两 block 带有砍树 block 的方 block ) -
tile[ix].rot[]={ ix,ix+1,ix+2,ix+3 };
其中ix
是4
的瓷砖旋转(如第一 block 瓷砖)
索引仅对第一个图 block 有效或粗略,其他图 block 具有整个
rot[]
数组从邻居旋转 1 个值。一些旋转是不可见的(见宽阔的树),但图 block 仍然存在以允许旋转。瓦片高度对于在编辑时放置瓦片以及自动生成 map 很重要。
我还打算添加
A*
为每个图 block 绘制 map ,以便我可以使用路径查找或计算水流量等。-
map 编辑器
我更喜欢3D map 。对于更大的分辨率,您需要正确选择要查看的查看区域以最大限度地提高性能。另外一个好主意是创建空心地下,这样渲染速度会快得多(这也可以在渲染过程中虚拟完成,无需更新 map )。
我建议对这些功能进行编码:
- 让地面空心
- 打好基础
- 随机地形(菱形和方形)
- 过滤掉小孔和光滑的边缘(将坡度瓦片添加到立方体瓦片中)
磁贴编辑器
除了显而易见的绘图编辑器之外,您还应该添加其他功能,例如:
- 楼层
<->
天花板 - 离开
<->
对 - 前
<->
返回 - 将大 Sprite 分成规则的图 block
- 复制/合并/粘贴
- 调整离开后的灯光
<->
右镜像操作
它们在编译/编辑 tileset 资源时非常方便。如您所见,我的瓦片集中有许多瓦片在源瓦片集中不存在。它们是由这些功能+一些小的绘画编辑创建的...图 block 集底部的彩色 mask 用于遮盖并正确组合部分图 block 以创建缺失的部分...(您可以采用一侧形式瓷砖和其他来自其他......)
- 楼层
[注释]
有关更多信息/想法,请查看一些相关的Q/A:
关于c++ - 2D 钻石(等距) map 编辑器 - 无限扩展的纹理?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/36248821/