void drawTree(SDL_Simplewin *sw, node *tree,
fntrow fnt[FNTCHARS][FNTHEIGHT])
{
cart parent, this;
if(tree==NULL){
return;
}
drawTree(sw, tree->c0, fnt);
drawTree(sw, tree->c1, fnt);
if(tree->y > 0){
this = getTreeCoord(tree);
parent = getTreeCoord(tree->parent);
SDL_SetRenderDrawColor(sw->renderer, COL_TREE_GREEN, OPAQUE);
SDL_RenderDrawLine(sw->renderer, parent.x, parent.y,
this.x, this.y);
if(tree->chr){
Neill_SDL_DrawChar(sw, fnt, tree->chr,
this.x-(FNTWIDTH/2), this.y);
} else {
setRandColour(sw);
Neill_SDL_RenderFillCircle(sw->renderer, this.x, this.y, CIRCRAD);
SDL_SetRenderDrawColor(sw->renderer, COL_WHITE, OPAQUE);
/*drawCirc(sw, this, CIRCRAD);*/
}
}
}
/* Display the maze in an SDL GUI */
void display_SDL(max_maze array, maze_dimensions dims){
// Fit the maze to the window height by scaling each cell's dimensions
int rectsize = WHEIGHT / dims.height;
int window_offset = (WWIDTH-WHEIGHT)/2;
int cx=0, cy =0;
SDL_Simplewin win;
SDL_Rect rectangle;
rectangle.w = rectsize;
rectangle.h = rectsize;
Neill_SDL_Init(&win);
do {
// Draw the array graphically.
for (int i = 0; i < dims.height; ++i) {
for (int j = 0; j < dims.width; ++j) {
if ( array[i][j] == '#' ) {
Neill_SDL_SetDrawColour(&win,255,255,255); // Set colour to WHITE
// Draw rectangle for each array cell, centred in the window
rectangle.x = (j * rectsize) + window_offset ;
rectangle.y = i * rectsize;
SDL_RenderFillRect(win.renderer, &rectangle);
}
if ( array[i][j] == '.') {
Neill_SDL_SetDrawColour(&win,255,128,0); // Set colour to ORANGE
cx = (j*rectsize) + window_offset + (rectsize/2);
cy = (i*rectsize) + (rectsize/2);
Neill_SDL_RenderFillCircle(win.renderer, cx, cy, RADIUS);
}
}
}
// Update window.
SDL_RenderPresent(win.renderer);
SDL_UpdateWindowSurface(win.win);
Neill_SDL_Events(&win); // Check for user kill
SDL_Delay(MILLISECONDDELAY); // Wait a short time
} while(!win.finished);
// Cleans up.
atexit(SDL_Quit);
}
