83 lines
1.4 KiB
Plaintext
83 lines
1.4 KiB
Plaintext
// common.qc: common functions
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float() crandom = {
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return 2 * (random() - 0.5);
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};
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/*
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=============
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range
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returns the range catagorization of an entity reletive to self
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0 melee range, will become hostile even if back is turned
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1 visibility and infront, or visibility and show hostile
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2 infront and show hostile
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3 only triggered by damage
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=============
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*/
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float(entity targ) range = {
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vector spot1, spot2;
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float r;
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spot1 = self.origin + self.view_ofs;
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spot2 = targ.origin + targ.view_ofs;
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r = vlen(spot1 - spot2);
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if(r < 120) {
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return RANGE_MELEE;
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}
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if(r < 500) {
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return RANGE_NEAR;
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}
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if(r < 1000) {
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return RANGE_MID;
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}
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return RANGE_FAR;
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};
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/*
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=============
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visible
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returns 1 if the entity is visible to self, even if not infront()
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=============
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*/
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float(entity targ) visible = {
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vector spot1, spot2;
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spot1 = self.origin + self.view_ofs;
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spot2 = targ.origin + targ.view_ofs;
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traceline(spot1, spot2, TRUE, self); // see through other monsters
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if(trace_inopen && trace_inwater) {
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return FALSE; // sight line crossed contents
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}
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if(trace_fraction == 1) {
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return TRUE;
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}
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return FALSE;
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};
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/*
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=============
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infront
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returns 1 if the entity is in front(in sight) of self
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=============
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*/
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float(entity targ) infront = {
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vector vec;
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float dot;
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makevectors(self.angles);
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vec = normalize(targ.origin - self.origin);
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dot = vec * v_forward;
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if(dot > 0.3) {
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return TRUE;
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}
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return FALSE;
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};
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// EOF
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