#include "input.h"
#include "gba.h"
#include "sprite.h"
+#include "timer.h"
#include "debug.h"
#include "voxscape.h"
#include "data.h"
#define NEAR 2
#define FAR 85
+#define P_RATE 250
+#define E_RATE 250
+#define SHOT_TIME 50
+
static int gamescr_start(void);
static void gamescr_stop(void);
static void gamescr_frame(void);
static void gamescr_vblank(void);
-static void update(void);
+static int update(void);
static void draw(void);
static struct screen gamescr = {
struct vox_object vobj;
short hp;
short anm;
- int last_fire;
+ int last_shot;
};
#define ENEMY_VALID(e) ((e)->anm != 0)
static uint16_t *vram[] = { gba_vram_lfb0, gba_vram_lfb1 };
static int32_t pos[2], angle, horizon = 80;
+static long last_shot;
#define COLOR_HORIZON 192
#define COLOR_ZENITH 255
#define MAX_ENEMIES (255 - CMAP_SPAWN0)
struct enemy enemies[MAX_ENEMIES];
-int num_enemies, total_enemies;
+int num_kills, total_enemies;
static int energy;
#define MAX_ENERGY 5
+#define ENEMY_ENERGY 4
+
#define XFORM_PIXEL_X(x, y) (xform_ca * (x) - xform_sa * (y) + (120 << 8))
#define XFORM_PIXEL_Y(x, y) (xform_sa * (x) + xform_ca * (y) + (80 << 8))
return &gamescr;
}
+static void setup_palette(void)
+{
+ int i;
+ unsigned char *cmap = gba_colors ? color_gba_cmap : color_cmap;
+
+ emuprint("setting up %s palette", gba_colors ? "GBA" : "NDS/Emu");
+
+ for(i=0; i<256; i++) {
+ int r = cmap[i * 3];
+ int g = cmap[i * 3 + 1];
+ int b = cmap[i * 3 + 2];
+ gba_bgpal[i] = RGB555(r, g, b);
+ }
+}
+
static int gamescr_start(void)
{
int i, j, sidx;
prev_iwram_top = iwram_sbrk(0);
gba_setmode(4, DISPCNT_BG2 | DISPCNT_OBJ | DISPCNT_FB1);
+ fillblock_16byte(gba_vram_lfb1, 0, 240 * 160 / 16);
vblperf_setcolor(0);
pos[0] = pos[1] = VOX_SZ << 15;
+ angle = 0x8000;
+ last_shot = -P_RATE - 1;
vox_init(VOX_SZ, VOX_SZ, height_pixels, color_pixels);
vox_proj(FOV, NEAR, FAR);
vox_view(pos[0], pos[1], -40, angle);
/* setup color image palette */
- for(i=0; i<256; i++) {
- int r = color_cmap[i * 3];
- int g = color_cmap[i * 3 + 1];
- int b = color_cmap[i * 3 + 2];
- gba_bgpal[i] = (((uint16_t)b << 7) & 0x7c00) | (((uint16_t)g << 2) & 0x3e0) | (((uint16_t)r >> 3) & 0x1f);
- }
+ setup_palette();
spr_setup(16, 16, spr_game_pixels, spr_game_cmap);
wait_vblank();
spr_oam(oam, sidx++, SPRID_UISLASH, 216, 144, SPR_VRECT | SPR_256COL);
dynspr_base = sidx;
- num_enemies = total_enemies = 0;
+ num_kills = total_enemies = 0;
energy = 5;
- srand(0);
+ memset(enemies, 0, sizeof enemies);
cptr = color_pixels;
for(i=0; i<VOX_SZ; i++) {
for(j=0; j<VOX_SZ; j++) {
enemy->vobj.y = i;
enemy->vobj.px = -1;
enemy->anm = 0xff;
- enemy->hp = 2;
- enemy->last_fire = 0;
+ enemy->hp = ENEMY_ENERGY;
+ enemy->last_shot = timer_msec > E_RATE ? timer_msec - E_RATE : 0;
if(++total_enemies >= MAX_ENEMIES) {
goto endspawn;
}
vox_objects((struct vox_object*)enemies, total_enemies, sizeof *enemies);
+ energy = MAX_ENERGY;
+ xform_sa = 0;
+ xform_ca = 0x10000;
+ xform_s = 0x100;
+
+ vblcount = 0;
nframes = 0;
return 0;
}
static void gamescr_stop(void)
{
iwram_brk(prev_iwram_top);
+
+ wait_vblank();
+ /* clear sprites */
+ spr_clear();
+ /* reset background rot/scale state */
+ REG_BG2X = 0;
+ REG_BG2Y = 0;
+ REG_BG2PA = 0x100;
+ REG_BG2PB = 0;
+ REG_BG2PC = 0;
+ REG_BG2PD = 0x100;
+
}
static void gamescr_frame(void)
vox_framebuf(240, 160, framebuf, horizon);
- update();
+ if(update() == -1) {
+ return;
+ }
draw();
vblperf_end();
#define TURN_SPEED 0x200
#define ELEV_SPEED 8
-static void update(void)
+static int update(void)
{
int32_t fwd[2], right[2];
int i, snum, ledspr;
if(KEYPRESS(BN_START)) {
/* TODO pause menu */
change_screen(find_screen("menu"));
+ return -1;
}
if(keystate) {
pos[0] += fwd[0];
pos[1] += fwd[1];
}
- if(keystate & BN_B) {
- pos[0] -= fwd[0];
- pos[1] -= fwd[1];
+
+ if((keystate & BN_B) && (timer_msec - last_shot >= P_RATE)) {
+ last_shot = timer_msec;
+ for(i=0; i<total_enemies; i++) {
+ if(enemies[i].hp && enemies[i].vobj.px >= 0) {
+ int dx = enemies[i].vobj.px - 120;
+ int dy = enemies[i].vobj.py - 80;
+ int rad = enemies[i].vobj.scale >> 5;
+
+ /*emuprint("rad: %d (%d,%d)", rad, enemies[i].vobj.px, enemies[i].vobj.py);*/
+ if(rad < 1) rad = 1;
+
+ if(abs(dx) < rad && abs(dy) < (rad << 1)) {
+ enemies[i].hp--;
+ break;
+ }
+ }
+ }
}
if(keystate & BN_UP) {
if(horizon > 40) horizon -= ELEV_SPEED;
snum = 0;
/* turrets number */
- spr_oam(oam, dynspr_base + snum++, numspr[num_enemies][0], 200, 144, SPR_VRECT | SPR_256COL);
- spr_oam(oam, dynspr_base + snum++, numspr[num_enemies][1], 208, 144, SPR_VRECT | SPR_256COL);
+ spr_oam(oam, dynspr_base + snum++, numspr[num_kills][0], 200, 144, SPR_VRECT | SPR_256COL);
+ spr_oam(oam, dynspr_base + snum++, numspr[num_kills][1], 208, 144, SPR_VRECT | SPR_256COL);
spr_oam(oam, dynspr_base + snum++, numspr[total_enemies][0], 224, 144, SPR_VRECT | SPR_256COL);
spr_oam(oam, dynspr_base + snum++, numspr[total_enemies][1], 232, 144, SPR_VRECT | SPR_256COL);
/* energy bar */
/*spr_oam(oam, dynspr_base + snum++, SPRID_ENEMY, 50, 50, SPR_VRECT | SPR_SZ64 | SPR_256COL);*/
enemy = enemies;
for(i=0; i<total_enemies; i++) {
- int sid, anm, px, py;
+ int sid, anm, px, py, yoffs;
unsigned int flags;
int16_t mat[4];
int32_t sa, ca, scale;
if(enemy->vobj.px >= 0) {
- flags = SPR_SZ32 | SPR_DBLSZ | SPR_256COL | SPR_ROTSCL | SPR_ROTSCL_SEL(0);
+ flags = SPR_DBLSZ | SPR_256COL | SPR_ROTSCL | SPR_ROTSCL_SEL(0);
if(enemies->hp > 0) {
anm = (enemies->anm + (vblcount >> 3)) & 0xf;
sid = SPRID_ENEMY0 + ((anm & 7) << 2);
- flags |= SPR_VRECT;
+ flags |= SPR_SZ32 | SPR_VRECT;
+ yoffs = 32;
} else {
anm = 0;
sid = SPRID_HUSK;
+ flags |= SPR_SZ16;
+ yoffs = 16;
}
px = enemy->vobj.px - 120;
py = enemy->vobj.py - 80;
xform_pixel(&px, &py);
- spr_oam(oam, dynspr_base + snum++, sid, px - 20, py - 32, flags);
+ spr_oam(oam, dynspr_base + snum++, sid, px - 16, py - yoffs, flags);
scale = enemy->vobj.scale;
if(scale > 0x10000) scale = 0x10000;
}
enemy++;
}
+ if(timer_msec - last_shot <= SHOT_TIME) {
+ spr_oam(oam, dynspr_base + snum++, SPRID_LAS0, -8, 118, SPR_SZ32 | SPR_256COL);
+ spr_oam(oam, dynspr_base + snum++, SPRID_LAS1, 22, 103, SPR_SZ32 | SPR_256COL);
+ spr_oam(oam, dynspr_base + snum++, SPRID_LAS2, 54, 88, SPR_SZ32 | SPR_256COL);
+ spr_oam(oam, dynspr_base + snum++, SPRID_LAS3, 86, 72, SPR_SZ32 | SPR_256COL);
+
+ spr_oam(oam, dynspr_base + snum++, SPRID_LAS0, 240 + 8 - 32, 118, SPR_SZ32 | SPR_256COL | SPR_HFLIP);
+ spr_oam(oam, dynspr_base + snum++, SPRID_LAS1, 240 - 22 - 32, 103, SPR_SZ32 | SPR_256COL | SPR_HFLIP);
+ spr_oam(oam, dynspr_base + snum++, SPRID_LAS2, 240 - 54 - 32, 88, SPR_SZ32 | SPR_256COL | SPR_HFLIP);
+ spr_oam(oam, dynspr_base + snum++, SPRID_LAS3, 240 - 86 - 32, 72, SPR_SZ32 | SPR_256COL | SPR_HFLIP);
+ }
for(i=snum; i<dynspr_count; i++) {
spr_oam_clear(oam, dynspr_base + i);
}
mask(INTR_VBLANK);
dynspr_count = snum;
unmask(INTR_VBLANK);
+
+ return 0;
}
static void draw(void)
projects / gbajam22 / blobdiff