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84 lines
1.5 KiB
84 lines
1.5 KiB
#include <screen.h>
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#include <world.h>
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#include <getPos.h>
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int getOpenPos(){
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int chooseAnother=1;
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while(chooseAnother){
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spaceExists:
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openPos.y=(rand()%(viewportWinRows-1)+1);
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openPos.x=(rand()%(viewportWinCols-1)+1);
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if(mvwinch(viewportWin,openPos.y,openPos.x)==' '){
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int i;
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for(i=1;i<MAX_ALIVE;i++){
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if(allEntities[i].isAlive && allEntities[i].curYpos==openPos.y && allEntities[i].curXpos==openPos.x){
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chooseAnother=1;
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}
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else{
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chooseAnother=0;
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}
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}
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}
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else{
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int x,y;
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for(y=0;y<viewportWinRows;y++){
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for(x=0;x<viewportWinCols;x++){
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if(mvwinch(viewportWin,y,x)==' '){
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chooseAnother=1;
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goto spaceExists;
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}
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}
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}
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return 0;
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}
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}
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return 1;
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}
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void getNextPos(int y, int x, int y2, int x2){
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int w = x2 - x;
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int h = y2 - y;
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int dx1 = 0, dy1 = 0, dx2 = 0, dy2 =0;
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if (w<0){
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dx1 = -1;
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}
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else if(w>0){
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dx1 = 1;
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}
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if (h<0){
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dy1 = -1;
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}
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else if(h>0){
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dy1 = 1;
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}
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if (w<0){
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dx2 = -1;
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}
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else if(w>0){
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dx2 = 1;
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}
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int longest = abs(w);
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int shortest = abs(h);
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if (!(longest>shortest)) {
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longest = abs(h);
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shortest = abs(w);
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if (h<0){
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dy2 = -1;
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}
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else if (h>0){
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dy2 = 1;
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}
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dx2 = 0;
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}
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int numerator = longest >> 1;
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numerator += shortest;
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if (!(numerator<longest)) {
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numerator -= longest;
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x += dx1;
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y += dy1;
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} else {
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x += dx2;
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y += dy2;
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}
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nextPos.x = x;
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nextPos.y = y;
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}
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