1 line
12 KiB
C
1 line
12 KiB
C
#include "wolfdef.h"
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#define SHOTRATE 6
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/**********************************
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Change my weapon to the biggest one I got
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**********************************/
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static void OutOfAmmo(void)
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{
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if (gamestate.missile && gamestate.missiles) {
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gamestate.pendingweapon = WP_MISSILE;
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return; /* Launcher & missiles */
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}
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if (gamestate.flamethrower && gamestate.gas) {
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gamestate.pendingweapon = WP_FLAMETHROWER;
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return; /* Flames and gas */
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}
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if (gamestate.ammo) {
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if (gamestate.chaingun) {
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gamestate.pendingweapon = WP_CHAINGUN;
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return;
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}
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if (gamestate.machinegun) {
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gamestate.pendingweapon = WP_MACHINEGUN;
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return;
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}
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gamestate.pendingweapon = WP_PISTOL;
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return;
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}
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gamestate.pendingweapon = WP_KNIFE;
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}
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/**********************************
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Draw the ammo for the new weapon
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**********************************/
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void ChangeWeapon (void)
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{
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switch(gamestate.weapon) { /* Which weapon */
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case WP_PISTOL:
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case WP_MACHINEGUN:
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case WP_CHAINGUN:
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IO_DrawAmmo(gamestate.ammo); /* Draw bullets */
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break;
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case WP_FLAMETHROWER:
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IO_DrawAmmo(gamestate.gas); /* Draw gasoline */
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break;
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case WP_MISSILE:
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IO_DrawAmmo(gamestate.missiles); /* Draw missiles */
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}
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}
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/**********************************
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Fire my weapon, change to knife if no more ammo
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**********************************/
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void Cmd_Fire(void)
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{
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switch(gamestate.weapon) {
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case WP_CHAINGUN:
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case WP_MACHINEGUN:
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case WP_PISTOL:
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if (!gamestate.ammo) { /* Do I have ammo? */
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OutOfAmmo(); /* Change the weapon */
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}
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break;
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case WP_FLAMETHROWER:
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if (!gamestate.gas) {
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OutOfAmmo(); /* Change the weapon */
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}
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break;
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case WP_MISSILE:
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if (!gamestate.missiles) {
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OutOfAmmo(); /* Change the weapon */
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}
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}
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gamestate.attackframe = 1; /* Begin the attack */
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gamestate.attackcount = SHOTRATE; /* Time before next action */
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}
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/**********************************
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Try to use a switch, door or pushwall...
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**********************************/
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void Cmd_Use(void)
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{
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Word dir; /* Direction facing */
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Word tile; /* Tile tested */
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Word x,y; /* x,y of the tile to test */
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/* Find which cardinal direction the player is facing */
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x = actors[0].x >> FRACBITS; /* Get the x,y in tiles */
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y = actors[0].y >> FRACBITS;
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dir = ((gamestate.viewangle+ANGLES/8)&(ANGLES-1)) >> 7; /* Force into a cardinal direction */
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switch (dir) {
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case 0:
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x++;
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dir = CD_EAST; /* East */
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break;
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case 1:
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y--;
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dir = CD_NORTH; /* North */
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break;
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case 2:
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x--;
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dir = CD_WEST; /* West */
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break;
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case 3:
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y++;
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dir = CD_SOUTH; /* South */
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}
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tile = tilemap[y][x]; /* Get the tile data */
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if (tile & TI_DOOR) { /* Is this a door? */
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OperateDoor(tile&TI_NUMMASK); /* Door # to operate */
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return;
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}
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if (!PushWallRec.pwallcount && (tile&TI_PUSHWALL)) { /* Push wall? */
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PushWall(x,y,dir); /* Note: Only 1 pushwall at a time! */
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return;
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}
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if (tile & TI_SWITCH) { /* Elevator switch? */
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PlaySound(SND_THROWSWITCH|0x8000);
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playstate = EX_COMPLETED;
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return;
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}
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if (tile & TI_SECRET) { /* Secret level? */
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PlaySound(SND_THROWSWITCH|0x8000);
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playstate = EX_SECRET;
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return;
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}
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if (tile & TI_BLOCKSIGHT) {
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PlaySound(SND_HITWALL|0x8000); /* Oof! */
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}
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}
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/**********************************
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Change my weapon
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**********************************/
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void Cmd_ChangeWeapon(void)
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{
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for (;;) {
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++gamestate.pendingweapon; /* Next weapon */
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switch(gamestate.pendingweapon) {
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case WP_PISTOL:
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if (gamestate.ammo) { /* Do I have ammo ? */
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return; /* Use it! */
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}
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break;
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case WP_MACHINEGUN:
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if (gamestate.machinegun && gamestate.ammo) {
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return; /* Machine gun & ammo! */
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}
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break;
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case WP_CHAINGUN:
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if (gamestate.chaingun && gamestate.ammo) {
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return; /* Chain gun & ammo! */
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}
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break;
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case WP_FLAMETHROWER:
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if (gamestate.flamethrower && gamestate.gas) {
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return; /* Flames and gas */
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}
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break;
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case WP_MISSILE:
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if (gamestate.missile && gamestate.missiles) {
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return; /* Launcher & missiles */
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}
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break;
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default:
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gamestate.pendingweapon = WP_KNIFE; /* Force as the knife */
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return;
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}
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}
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}
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/**********************************
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Sets actor to the closest enemy in the line of fire, or 0
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if there is no valid target
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**********************************/
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actor_t *TargetEnemy (void)
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{
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Word *xe;
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Word i;
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vissprite_t *dseg;
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actor_t *ActorPtr;
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/* look at the drawn sprites from closest to farthest*/
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i = numvisspr;
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if (i) { /* Any drawn? */
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xe = &firstevent[i-1]; /* Index to the CLOSEST sprite */
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do {
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dseg = &vissprites[xe[0]&(MAXVISSPRITES-1)];
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if (dseg->actornum) { /* static sprite or missile */
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if (xscale[CENTERX] <= dseg->clipscale) { /* Not obscured by a wall*/
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if (dseg->x1 <= CENTERX+8 && dseg->x2 >= CENTERX-8) {
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ActorPtr = &actors[dseg->actornum]; /* Get pointer to the actor */
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if (!(ActorPtr->flags & FL_DEAD)) { /* Dead already? */
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return ActorPtr; /* Shoot me! */
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}
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}
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}
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}
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--xe;
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} while (--i);
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}
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return 0; /* No actor in range */
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}
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/**********************************
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Attack with a knife
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**********************************/
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void KnifeAttack(void)
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{
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actor_t *ActorPtr;
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ActorPtr = TargetEnemy(); /* Who to hit? */
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if (ActorPtr) { /* Got someone? */
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if (CalcDistance(ActorPtr) <= KNIFEDIST) { /* In range? */
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DamageActor(w_rnd()&15,ActorPtr); /* Hit him! */
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PlaySound(SND_KNIFE|0x8000);
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return;
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}
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}
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PlaySound(SND_KNIFEMISS|0x8000); /* Swish the knife */
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}
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/**********************************
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Attack with a pistol, machine gun, chain gun
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**********************************/
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void GunAttack(void)
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{
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Word Damage;
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actor_t *ActorPtr;
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if (gamestate.weapon == WP_CHAINGUN ) {
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Damage = SND_CHAIN|0x8000; /* Bang! */
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} else if (gamestate.weapon == WP_MACHINEGUN) {
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Damage = SND_MGUN|0x8000;
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} else {
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Damage = SND_GUNSHT|0x8000;
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}
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PlaySound(Damage); /* Play the gun shot sound */
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madenoise = TRUE; /* I made some noise */
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if (!gamestate.godmode) {
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--gamestate.ammo; /* Remove a bullet */
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}
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IO_DrawAmmo(gamestate.ammo); /* Redraw the ammo */
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ActorPtr = TargetEnemy(); /* Anyone to hit? */
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if (ActorPtr) { /* Found one? */
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if (CalcDistance(ActorPtr) < 2*TILEGLOBAL) { /* Close range? */
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Damage = w_rnd()&15; /* More damage */
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} else {
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Damage = w_rnd()&7;
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}
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DamageActor(Damage,ActorPtr); /* Shoot! */
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}
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}
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/**********************************
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Attack with a flame thrower
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**********************************/
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void FlameAttack(void)
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{
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int x; /* Sine,cos value */
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missile_t *MissilePtr; /* Pointer to new missile record */
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madenoise = TRUE;
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PlaySound(SND_FTHROW|0x8000); /* Burn! */
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if (!gamestate.godmode) {
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--gamestate.gas; /* Use a gallon of gas */
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}
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IO_DrawAmmo(gamestate.gas); /* Draw the gas value */
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/* flame sprite*/
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MissilePtr = GetNewMissile(); /* Get a missile record */
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MissilePtr->areanumber = actors[0].areanumber; /* Start where I am */
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x = costable[gamestate.viewangle]; /* Set the x velocity */
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MissilePtr->xspeed = x/5; /* Set the speed */
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MissilePtr->x = (x/4) + actors[0].x;
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x = -sintable[gamestate.viewangle]; /* Set the y velocity */
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MissilePtr->yspeed = x/5; /* Set the speed */
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MissilePtr->y = (x/4) + actors[0].y;
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MissilePtr->pic = S_FIREBALL; /* Use the fireball pic */
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MissilePtr->flags = MF_HITENEMIES | MF_HITSTATICS;
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MissilePtr->type = MI_PFLAME;
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}
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/**********************************
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Attack with a missile
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**********************************/
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void MissileAttack(void)
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{
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int x; /* Sine,Cos value */
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missile_t *MissilePtr; /* Pointer to new missile record */
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PlaySound(SND_ROCKET|0x8000); /* Fire! */
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madenoise = TRUE; /* Made a racket */
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if (!gamestate.godmode) {
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--gamestate.missiles;
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}
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IO_DrawAmmo(gamestate.missiles); /* Draw the missile count */
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MissilePtr = GetNewMissile(); /* missile sprite */
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MissilePtr->areanumber = actors[0].areanumber;
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x = costable[gamestate.viewangle];
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MissilePtr->x = (x/4) + actors[0].x; /* Must be visible for screen! */
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MissilePtr->xspeed = (x/5);
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x = -sintable[gamestate.viewangle];
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MissilePtr->y = (x/4) + actors[0].y;
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MissilePtr->yspeed = (x/5);
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MissilePtr->pic = S_MISSILE;
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MissilePtr->flags = MF_HITENEMIES | MF_HITSTATICS;
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MissilePtr->type = MI_PMISSILE;
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}
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/**********************************
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Move the player (Called every tic)
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**********************************/
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void MovePlayer(void)
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{
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ControlMovement(); /* Read the controller */
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/* check for use*/
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if (buttonstate[bt_use]) { /* Pressed use? */
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if (!useheld) {
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useheld = TRUE; /* Only once... */
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Cmd_Use();
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}
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} else {
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useheld = FALSE; /* It's released */
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}
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/* check for weapon select */
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if (buttonstate[bt_select]) {
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if (!selectheld) {
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selectheld = TRUE; /* Only once */
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Cmd_ChangeWeapon(); /* Change the weapon */
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}
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} else {
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selectheld = FALSE; /* It's released */
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}
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/* check for starting an attack */
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if (buttonstate[bt_attack]) {
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if (!attackheld && !gamestate.attackframe) {
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attackheld = TRUE; /* Held down */
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Cmd_Fire(); /* Initiate firing my weapon */
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}
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} else {
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attackheld = FALSE; /* It's released */
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}
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/* advance attacking action */
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if (!gamestate.attackframe) { /* Not in the middle of firing the weapon? */
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if (gamestate.pendingweapon != gamestate.weapon) { /* New weapon? */
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gamestate.weapon = gamestate.pendingweapon; /* Set the weapon */
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ChangeWeapon(); /* Redraw the ammo */
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}
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return; /* Exit now */
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}
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/* I am in an attack, time yet? */
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if (gamestate.attackcount>TicCount) { /* Wait to attack! */
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gamestate.attackcount-=TicCount; /* Wait a bit */
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return;
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}
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/* change frame */
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if (TicCount<SHOTRATE) {
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gamestate.attackcount += (SHOTRATE-TicCount); /* Carry over the time */
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}
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++gamestate.attackframe; /* Next animation frame */
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/* frame 2: attack frame */
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if (gamestate.attackframe == 2) {
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switch (gamestate.weapon) {
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case WP_KNIFE:
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KnifeAttack(); /* Knife 'em */
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break;
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case WP_PISTOL:
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if (!gamestate.ammo) {
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gamestate.attackframe = 4;
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return;
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}
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GunAttack(); /* One shot */
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break;
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case WP_MACHINEGUN:
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if (!gamestate.ammo) {
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gamestate.attackframe = 4;
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return;
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}
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GunAttack(); /* First shot */
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break;
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case WP_CHAINGUN:
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if (!gamestate.ammo) {
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gamestate.attackframe = 4;
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return;
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}
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GunAttack(); /* First of many shots */
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break;
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case WP_FLAMETHROWER:
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if (!gamestate.gas) {
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gamestate.attackframe = 4;
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return;
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}
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FlameAttack(); /* Shoot a flame */
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break;
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case WP_MISSILE:
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if (!gamestate.missiles) {
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gamestate.attackframe = 4;
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return;
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}
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MissileAttack(); /* Shoot the missile */
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}
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}
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/* frame 3: second shot for chaingun and flamethrower */
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if (gamestate.attackframe == 3) {
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if (gamestate.weapon == WP_CHAINGUN ) {
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if (!gamestate.ammo) {
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++gamestate.attackframe;
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} else {
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GunAttack(); /* Shoot! */
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}
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} else if (gamestate.weapon == WP_FLAMETHROWER ) {
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if (!gamestate.gas) {
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++gamestate.attackframe;
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} else {
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FlameAttack(); /* Flame on! */
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}
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}
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return;
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}
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/* frame 4: possible auto fire */
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if (gamestate.attackframe == 4) {
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if (buttonstate[bt_attack]) { /* Held down? */
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if ( (gamestate.weapon == WP_MACHINEGUN
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|| gamestate.weapon == WP_CHAINGUN) && gamestate.ammo) {
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gamestate.attackframe = 2; /* Fire again */
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GunAttack(); /* Shoot */
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}
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if (gamestate.weapon == WP_FLAMETHROWER && gamestate.gas) {
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gamestate.attackframe=2;
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FlameAttack(); /* Flame again */
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}
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}
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return;
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}
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if (gamestate.attackframe == 5) { /* End the attack */
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switch (gamestate.weapon) {
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case WP_CHAINGUN:
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case WP_MACHINEGUN:
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case WP_PISTOL:
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if (!gamestate.ammo) {
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OutOfAmmo(); /* Switch weapons */
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} else if (gamestate.weapon == WP_PISTOL && buttonstate[bt_attack]
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&& !attackheld) {
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attackheld = TRUE;
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gamestate.attackframe = 1; /* Fire again the pistol */
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return;
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}
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break;
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case WP_FLAMETHROWER:
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if (!gamestate.gas) { /* Out of gas? */
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OutOfAmmo(); /* Change weapons */
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}
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break;
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case WP_MISSILE:
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if (!gamestate.missiles) { /* Out of missiles? */
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OutOfAmmo(); /* Switch weapons */
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}
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}
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gamestate.attackcount = 0; /* Shut down the attack */
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gamestate.attackframe = 0;
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}
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}
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