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#include <SDL/SDL.h>
#include <SDL/SDL_image.h>
#include <string>
#include <cstdlib>
#include <time.h>
SDL_Surface *grassTile = NULL;
SDL_Surface *tallgrassTile = NULL;
SDL_Surface *boulderTile = NULL;
SDL_Surface *treeTile = NULL;
SDL_Surface *screen = NULL;
SDL_Surface *dot = NULL;
SDL_Surface *loading = NULL;
const int mapDimension = 1200;
const int tileDimension = 40;
const int SCREEN_WIDTH = 640;
const int SCREEN_HEIGHT = 480;
const int SCREEN_BPP = 32;
const int DOT_WIDTH = 5;
const int DOT_HEIGHT = 5;
SDL_Event event;
SDL_Rect camera = {0,0,SCREEN_WIDTH, SCREEN_HEIGHT};
SDL_Surface *load_image(std::string filename){
SDL_Surface* loadedImage = NULL;
SDL_Surface* optimizedImage = NULL;
loadedImage = IMG_Load(filename.c_str());
if(loadedImage != NULL){
optimizedImage = SDL_DisplayFormat(loadedImage);
SDL_FreeSurface(loadedImage);
}
return optimizedImage;
}
void apply_surface(int x, int y, SDL_Surface *source, SDL_Surface *destination){
SDL_Rect offset;
offset.x = x;
offset.y = y;
SDL_BlitSurface(source, NULL, destination, &offset);
}
class Dot{
private:
int x, y;
int xVel, yVel;
public:
Dot();
void handle_input();
void move();
void show();
void set_camera();
};
Dot::Dot(){
x = 600;
y = 600;
xVel = 0;
yVel = 0;
}
void Dot::handle_input(){
if(event.type == SDL_KEYDOWN){
switch(event.key.keysym.sym){
case SDLK_UP: yVel -= DOT_HEIGHT / 2; break;
case SDLK_DOWN: yVel += DOT_HEIGHT / 2; break;
case SDLK_LEFT: xVel -= DOT_WIDTH / 2; break;
case SDLK_RIGHT: xVel += DOT_WIDTH / 2; break;
}
}else if(event.type == SDL_KEYUP){
switch(event.key.keysym.sym){
case SDLK_UP: yVel += DOT_HEIGHT / 2; break;
case SDLK_DOWN: yVel -= DOT_HEIGHT / 2; break;
case SDLK_LEFT: xVel += DOT_WIDTH / 2; break;
case SDLK_RIGHT: xVel -= DOT_WIDTH / 2; break;
}
}
}
void Dot::move(){
x += xVel;
if((x < 0 ) || (x + DOT_WIDTH > mapDimension)){
x -= xVel;
}
y += yVel;
if((y < 0) || (y + DOT_HEIGHT > mapDimension)){
y -= yVel;
}
}
void Dot::set_camera(){
camera.x = (x + DOT_WIDTH / 2) - SCREEN_WIDTH / 2;
camera.y = (y + DOT_HEIGHT / 2) - SCREEN_HEIGHT / 2;
if(camera.x < 0){
camera.x = 0;
}
if(camera.y < 0){
camera.y = 0;
}
if(camera.x > mapDimension - camera.w){
camera.x = mapDimension - camera.w;
}
if(camera.y > mapDimension - camera.h){
camera.y = mapDimension - camera.h;
}
}
void Dot::show(){
apply_surface(x - camera.x, y - camera.y, dot, screen);
}
void cleanup(){
SDL_FreeSurface(tallgrassTile);
SDL_FreeSurface(boulderTile);
SDL_FreeSurface(grassTile);
SDL_FreeSurface(treeTile);
SDL_Quit();
}
int main(int argc, char* args[]){
SDL_Init(SDL_INIT_EVERYTHING);
screen = SDL_SetVideoMode(SCREEN_WIDTH,SCREEN_HEIGHT,SCREEN_BPP,SDL_SWSURFACE);
SDL_WM_SetCaption("Map Generator", NULL);
srand(time(NULL));
Dot myDot;
int random;
int x = 1;
int y = 1;
bool quit = false;
bool mapcont = true;
bool camerplace = false;
tallgrassTile = load_image("tallgrass.png");
boulderTile = load_image("boulder.png");
grassTile = load_image("grass.png");
loading = load_image("loading.png");
treeTile = load_image("tree.png");
while(quit == false){
while(mapcont == true){
apply_surface(camera.x, camera.y, loading, screen);
random = 1+(rand()%10);
if((random == 1) || (random == 2) || (random == 3) || (random == 4)){
apply_surface(x, y, grassTile, screen);
x + tileDimension;
}else if((random == 5) || (random == 6) || (random == 7)){
apply_surface(x, y, treeTile, screen);
x + tileDimension;
}else if((random == 8) || (random == 9)){
apply_surface(x, y, tallgrassTile, screen);
x + tileDimension;
}
if(x >= 400){
x = 1;
y + tileDimension;
}
if(y >= 400){
mapcont = false;
SDL_FreeSurface(loading);
}
}
while(mapcont == false){
while(SDL_PollEvent(&event)){
myDot.handle_input();
if(event.type == SDL_QUIT){
quit = true;
}
}
myDot.move();
myDot.set_camera();
myDot.show();
SDL_Flip(screen);
}
}
}
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