//*	firing.c - Bullet firing functions for the different weapons

//* System library headers
#include <libps.h>
#include <stdlib.h> //debug

//* Application headers
#include "main.h"
#include "procs.h"
#include "preset.h"


//*------------------------------------------------------------------------------------------
//*	NormalFire
//*-------------------------------------------------------------------------------------<???>
void NormalFire(void)
{
register struct SCTRL	*bp;
register struct SCTRL	*gsp;

	bp = GetSprite(3);			//* Bullet + 2 blur sprites
	gsp = GetSprite(1);			//* Flash/gun smoke sprite

	//* Actual bullet sprite
	PresetSprite(bp, PRESET_NORMAL_BULLET);

	//* First motion-blur bullet
	PresetSprite(bp->freeLink, PRESET_NORMAL_BULLET_BLUR1);

	//* Second motion-blur bullet
	PresetSprite(bp->freeLink->freeLink, PRESET_NORMAL_BULLET_BLUR2);

	//* Gun smoke sprite
	PresetSprite(gsp, PRESET_GUNSMOKE);

	//* Consider Blitter Boy's direction for firing
	//* Direction is needed for handle_sprite_over_wall & handle_gunflash_over_wall
	switch (gsp->dir = sCtrl->dir) {
	case DIR_DOWN:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelX = 0;
			bp->dir = DIR_DOWN;
		 } else if (strafe==1) {			//* Fire bullet to BB's right
			bp->accelX = -1;
			bp->dir = DIR_DOWN_LEFT;
		 } else {							//* Fire bullet to BB's left
			bp->accelX = 1;
			bp->dir = DIR_DOWN_RIGHT;
		}
		bp->accelY = bullSpeed;
		bp->wx = sCtrl->wx + 12;
		bp->wy = sCtrl->wy + 6;
		gsp->wx = sCtrl->wx + 8;			//* Gun smoke service sprite
		gsp->wy = sCtrl->wy + 8;
		break;
	case DIR_DOWN_LEFT:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelX = -bullSpeed;
			bp->accelY = bullSpeed;
		} else if (strafe==1) {				//* Fire bullet to BB's right
			bp->accelX = -(bullSpeed+1);
			bp->accelY = bullSpeed-1;
		} else {							//* Fire bullet to BB's left
			bp->accelX = -(bullSpeed-1); 
			bp->accelY = bullSpeed+1;
		}
		bp->dir = DIR_DOWN_LEFT;
		bp->wx = sCtrl->wx + 3;
		bp->wy = sCtrl->wy + 5;
		gsp->wx = sCtrl->wx - 1;		//* Gun smoke service sprite
		gsp->wy = sCtrl->wy + 7;
		break;
	case DIR_LEFT:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelY = 0;
			bp->dir = DIR_LEFT;
		 } else if (strafe==1) {			//* Fire bullet to BB's right
			bp->accelY = -1;
			bp->dir = DIR_UP_LEFT;
		 } else {							//* Fire bullet to BB's left
			bp->accelY = 1;
			bp->dir = DIR_DOWN_LEFT;
		}
		bp->accelX = -bullSpeed;
		bp->wx = sCtrl->wx - 6;
		bp->wy = sCtrl->wy - 3;
		gsp->wx = sCtrl->wx - 10;		//* Gun smoke service sprite
		gsp->wy = sCtrl->wy - 1;
		break;
	case DIR_UP_LEFT:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelX = -bullSpeed;
			bp->accelY = -bullSpeed;
		} else if (strafe==1) {				//* Fire bullet to BB's right
			bp->accelX = -(bullSpeed-1);
			bp->accelY = -(bullSpeed+1);
		} else {							//* Fire bullet to BB's left
			bp->accelX = -(bullSpeed+1); 
			bp->accelY = -(bullSpeed-1);
		}
		bp->dir = DIR_UP_LEFT;
		bp->wx = sCtrl->wx - 1;
		bp->wy = sCtrl->wy - 12;
		gsp->wx = sCtrl->wx - 4;		//* Gun smoke service sprite
		gsp->wy = sCtrl->wy - 11;
		break;
	case DIR_UP:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelX = 0;
			bp->dir = DIR_UP;
		 } else if (strafe==1) {			//* Fire bullet to BB's right
			bp->accelX = 1;
			bp->dir = DIR_UP_RIGHT;
		 } else {							//* Fire bullet to BB's left
			bp->accelX = -1;
			bp->dir = DIR_UP_LEFT;
		}
		bp->accelY = -bullSpeed;
		bp->wx = sCtrl->wx + 12;
		bp->wy = sCtrl->wy - 17;
		gsp->wx = sCtrl->wx + 8;		//* Gun smoke service sprite
		gsp->wy = sCtrl->wy - 15;
		break;
	case DIR_UP_RIGHT:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelX = bullSpeed;
			bp->accelY = -bullSpeed;
		} else if (strafe==1) {				//* Fire bullet to BB's right
			bp->accelX = bullSpeed+1;
			bp->accelY = -(bullSpeed-1);
		} else {							//* Fire bullet to BB's left
			bp->accelX = bullSpeed-1; 
			bp->accelY = -(bullSpeed+1);
		}
		bp->dir = DIR_UP_RIGHT;
		bp->wx = sCtrl->wx + 24;
		bp->wy = sCtrl->wy - 12;
		gsp->wx = sCtrl->wx + 20;		//* Gun smoke service sprite
		gsp->wy = sCtrl->wy - 11;
		break;
	case DIR_RIGHT:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelY = 0;
			bp->dir = DIR_RIGHT;
		 } else if (strafe==1) {			//* Fire bullet to BB's right
			bp->accelY = 1;
			bp->dir = DIR_DOWN_RIGHT;
		 } else {							//* Fire bullet to BB's left
			bp->accelY = -1;
			bp->dir = DIR_UP_RIGHT;
		}
		bp->accelX = bullSpeed;
		bp->wx = sCtrl->wx + 29;
		bp->wy = sCtrl->wy - 3;
		gsp->wx = sCtrl->wx + 26;		//* Gun smoke service sprite
		gsp->wy = sCtrl->wy - 1;
		break;
	case DIR_DOWN_RIGHT:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelX = bullSpeed;
			bp->accelY = bullSpeed;
		} else if (strafe==1) {				//* Fire bullet to BB's right
			bp->accelX = bullSpeed-1;
			bp->accelY = bullSpeed+1;
		} else {							//* Fire bullet to BB's left
			bp->accelX = bullSpeed+1; 
			bp->accelY = bullSpeed-1;
		}
		bp->dir = DIR_DOWN_RIGHT;
		bp->wx = sCtrl->wx + 20;
		bp->wy = sCtrl->wy + 5;
		gsp->wx = sCtrl->wx + 17;		//* Gun smoke service sprite
		gsp->wy = sCtrl->wy + 7;
		break;
	}
	
	//* Find initial central x,y world coords
	bp->wxMid = bp->wx + bp->bbXOff + (bp->bbW >> 1);
	bp->wyMid = bp->wy - bp->bbYOff + (bp->bbH >> 1);

	//* Set off-ground height for new bullet & gun smoke sprites
	bp->high = sCtrl->high + 7;
	gsp->high = sCtrl->high + 4;

	//* Add new bullet & gun smoke sprites to aliveSprites linked list
	AliveLinkIn(bp);
	AliveLinkIn(gsp);

	//* Record frame count this bullet was fired on
	lastFireFrame = *psdcnt;

SsUtKeyOn(0, SFX_GUN_NORMAL, 0, 60, rand()%128, 127, 127);
}


//*------------------------------------------------------------------------------------------
//*	RainDeathFire
//*-------------------------------------------------------------------------------------<???>
void RainDeathFire(void)
{
register struct SCTRL	*bp;

	bp = GetSprite(3);			//* Bullet + 2 blur sprites

	//* Actual bullet sprite
	PresetSprite(bp, PRESET_RBOW_BULLET);

	//* First motion-blur bullet
	PresetSprite(bp->freeLink, PRESET_RBOW_BULLET_BLUR1);

	//* Second motion-blur bullet
	PresetSprite(bp->freeLink->freeLink, PRESET_RBOW_BULLET_BLUR2);

	//* Consider Blitter Boy's direction for firing
	//* Direction is needed for handle_sprite_over_wall & handle_gunflash_over_wall
	switch (bp->dir = sCtrl->dir) {
	case DIR_DOWN:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelX = 0;
			bp->dir = DIR_DOWN;
		 } else if (strafe==1) {			//* Fire bullet to BB's right
			bp->accelX = -1;
			bp->dir = DIR_DOWN_LEFT;
		 } else {							//* Fire bullet to BB's left
			bp->accelX = 1;
			bp->dir = DIR_DOWN_RIGHT;
		}
		bp->accelY = bullSpeed;
		bp->wx = sCtrl->wx + 8;
		bp->wy = sCtrl->wy + 6;
		break;
	case DIR_DOWN_LEFT:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelX = -bullSpeed;
			bp->accelY = bullSpeed;
		} else if (strafe==1) {				//* Fire bullet to BB's right
			bp->accelX = -(bullSpeed+1);
			bp->accelY = bullSpeed-1;
		} else {							//* Fire bullet to BB's left
			bp->accelX = -(bullSpeed-1); 
			bp->accelY = bullSpeed+1;
		}
		bp->dir = DIR_DOWN_LEFT;
		bp->wx = sCtrl->wx - 1;
		bp->wy = sCtrl->wy + 5;
		break;
	case DIR_LEFT:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelY = 0;
			bp->dir = DIR_LEFT;
		 } else if (strafe==1) {			//* Fire bullet to BB's right
			bp->accelY = -1;
			bp->dir = DIR_UP_LEFT;
		 } else {							//* Fire bullet to BB's left
			bp->accelY = 1;
			bp->dir = DIR_DOWN_LEFT;
		}
		bp->accelX = -bullSpeed;
		bp->wx = sCtrl->wx - 14;
		bp->wy = sCtrl->wy - 3;
		break;
	case DIR_UP_LEFT:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelX = -bullSpeed;
			bp->accelY = -bullSpeed;
		} else if (strafe==1) {				//* Fire bullet to BB's right
			bp->accelX = -(bullSpeed-1);
			bp->accelY = -(bullSpeed+1);
		} else {							//* Fire bullet to BB's left
			bp->accelX = -(bullSpeed+1); 
			bp->accelY = -(bullSpeed-1);
		}
		bp->dir = DIR_UP_LEFT;
		bp->wx = sCtrl->wx - 5;
		bp->wy = sCtrl->wy - 12;
		break;
	case DIR_UP:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelX = 0;
			bp->dir = DIR_UP;
		 } else if (strafe==1) {			//* Fire bullet to BB's right
			bp->accelX = 1;
			bp->dir = DIR_UP_RIGHT;
		 } else {							//* Fire bullet to BB's left
			bp->accelX = -1;
			bp->dir = DIR_UP_LEFT;
		}
		bp->accelY = -bullSpeed;
		bp->wx = sCtrl->wx + 8;
		bp->wy = sCtrl->wy - 17;
		break;
	case DIR_UP_RIGHT:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelX = bullSpeed;
			bp->accelY = -bullSpeed;
		} else if (strafe==1) {				//* Fire bullet to BB's right
			bp->accelX = bullSpeed+1;
			bp->accelY = -(bullSpeed-1);
		} else {							//* Fire bullet to BB's left
			bp->accelX = bullSpeed-1; 
			bp->accelY = -(bullSpeed+1);
		}
		bp->dir = DIR_UP_RIGHT;
		bp->wx = sCtrl->wx + 20;
		bp->wy = sCtrl->wy - 12;
		break;
	case DIR_RIGHT:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelY = 0;
			bp->dir = DIR_RIGHT;
		 } else if (strafe==1) {			//* Fire bullet to BB's right
			bp->accelY = 1;
			bp->dir = DIR_DOWN_RIGHT;
		 } else {							//* Fire bullet to BB's left
			bp->accelY = -1;
			bp->dir = DIR_UP_RIGHT;
		}
		bp->accelX = bullSpeed;
		bp->wx = sCtrl->wx + 29;
		bp->wy = sCtrl->wy - 3;
		break;
	case DIR_DOWN_RIGHT:
		if (!(strafe & 0x00000001)) {		//* Fire bullet forward (strafe is 0 or 2)
			bp->accelX = bullSpeed;
			bp->accelY = bullSpeed;
		} else if (strafe==1) {				//* Fire bullet to BB's right
			bp->accelX = bullSpeed-1;
			bp->accelY = bullSpeed+1;
		} else {							//* Fire bullet to BB's left
			bp->accelX = bullSpeed+1; 
			bp->accelY = bullSpeed-1;
		}
		bp->dir = DIR_DOWN_RIGHT;
		bp->wx = sCtrl->wx + 16;
		bp->wy = sCtrl->wy + 5;
		break;
	}

	//* Find initial central x,y world coords
	bp->wxMid = bp->wx + bp->bbXOff + (bp->bbW >> 1);
	bp->wyMid = bp->wy - bp->bbYOff + (bp->bbH >> 1);
	
	//* Set off-ground height for new bullet
	bp->high = sCtrl->high + 3;

	//* Add new bullet & gun smoke sprites to aliveSprites linked list
	AliveLinkIn(bp);

	//* Record frame count this bullet was fired on
	lastFireFrame = *psdcnt;

SsUtKeyOn(0, SFX_GUN_RAINBOW, 0, 60, rand()%128, 127, 127);
}


//*------------------------------------------------------------------------------------------
//*	FruitDropFire
//*-------------------------------------------------------------------------------------<???>
void FruitDropFire(void)
{
static int				clutOff=0;
register struct SCTRL	*bup;

	bup = GetSprite(1);			//* Gun build-up sprite

	//* Gun build-up sprite
	PresetSprite(bup, PRESET_FDROP_BUILDUP);
	bup->spriteLink->cy += clutOff;
	(clutOff==4) ? clutOff=0 : ++clutOff;		//* Set next clut y offset

	//* Direction is needed for handle_sprite_over_wall & handle_gunflash_over_wall
//	bup->dir = sCtrl->dir;

	//* Add new build-up sprite to aliveSprites linked list
	AliveLinkIn(bup);

	//* Record frame count this bullet was fired on
	lastFireFrame = *psdcnt;
}