complete collision detection
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parent
8a6d333cd2
commit
5905f78b17
21
c/anaconda.c
21
c/anaconda.c
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@ -73,7 +73,7 @@ void appendPoint(point *dest, point *origin) {
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dest->next = origin;
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}
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void updateAnaconda(anaconda *anaconda) {
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int updateAnaconda(anaconda *anaconda) {
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point *prev = anaconda->chain;
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point *temp = rotate(mkPoint(10, 0), anaconda->rot);
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point *new = mkPoint(
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@ -96,6 +96,19 @@ void updateAnaconda(anaconda *anaconda) {
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}
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free(traverser->next);
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traverser->next = NULL;
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point *top = anaconda->chain;
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point *ptr = top;
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for(int i = 0; i < 3; i++) {
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if(ptr->next) ptr = ptr->next;
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else return 1; /* we're fine, the snake is too short to intersect itself */
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}
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while(ptr->next) {
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if(intersect(top, top->next, ptr, ptr->next)) return 0;
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ptr = ptr->next;
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}
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return 1;
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}
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point *generateChain(int length) {
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@ -124,10 +137,12 @@ anaconda *mkAnaconda(point *point, double rot) {
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}
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int main(void) {
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anaconda *anaconda = mkAnaconda(generateChain(10), 0);
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anaconda *anaconda = mkAnaconda(generateChain(30), 0);
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xinit();
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while(1) {
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updateAnaconda(anaconda);
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if(!updateAnaconda(anaconda)) {
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return 0;
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}
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XClearWindow(d, w);
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point *ptr = anaconda->chain;
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while(ptr->next) {
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