Deathshead
Corporal
Joined: 18 Feb 2005
Posts: 87
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 Posted: Thu Apr 07, 2005 9:05 am Post subject: [Tutorial] Adding a Projectile |
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This is one of my earlier tutorials I wrote up and tested:
Add energyobj under needleobj in GLOBALTYPES in WL_DEF.H
Define sprites in WL_DEF.H, under Chaingun Sprites
| Code: |
SPR_EGY1, SPR_EGY2, SPREGY3,
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Define Statetypes in WL_ACT2.C
| Code: |
//
// energy blast
//
extern statetype s_energy1;
extern statetype s_energy2;
extern statetype s_energy3;
statetype s_energy1 = {false,SPR_EGY1,6,T_Projectile,NULL,&s_energy2};
statetype s_energy2 = {false,SPR_EGY2,6,T_Projectile,NULL,&s_energy3};
statetype s_energy3 = {false,SPR_EGY3,6,T_Projectile,NULL,&s_energy1};
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And add to WL_ACT2.C, above T_GiftThrow Function:
| Code: |
/*
=================
=
= T_Energy
=
=================
*/
void T_Energy (objtype *ob)
{
long deltax,deltay;
float angle;
int iangle;
deltax = player->x - ob->x;
deltay = ob->y - player->y;
angle = atan2 (deltay,deltax);
if (angle<0)
angle = M_PI*2+angle;
iangle = angle/(M_PI*2)*ANGLES;
GetNewActor ();
new->state = &s_energy1;
new->ticcount = 1;
new->tilex = ob->tilex;
new->tiley = ob->tiley;
new->x = ob->x;
new->y = ob->y;
new->obclass = energyobj;
new->dir = nodir;
new->angle = iangle;
new->speed = 0x2000l;
new->flags = FL_NONMARK;
new->active = true;
PlaySoundLocActor (SCHABBSTHROWSND,new);
}
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Add under case needleobj: damage = (US_RndT() >>3) + 20; break; in WL_ACT2.C:
| Code: |
case energyobj:
damage = (US_RndT() >>4) + 10;
break
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Then choose which enemy you want to use it, edit the statetypes, and your done.
You can even make a rocket type projectile, where it is 'directional'.
There you go
-Deathshead
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