voxelscape port

[gbajam22] / src / gamescr.c

diff --git a/src/gamescr.c b/src/gamescr.c
index bad3bec..7981cb4 100644 (file)
--- a/src/gamescr.c
+++ b/src/gamescr.c
@@ -11,8 +11,6 @@
 #include "sprite.h"
 #include "debug.h"
 #include "level.h"
-#include "xgl.h"
-#include "polyfill.h"
 
 static int gamescr_start(void);
 static void gamescr_stop(void);
@@ -33,39 +31,12 @@ static struct screen gamescr = {
 static int nframes, num_vbl, backbuf;
 static uint16_t *vram[] = { gba_vram_lfb0, gba_vram_lfb1 };
 
-static const char *testlvl =
-       "################\n"
-       "################\n"
-       "################\n"
-       "################\n"
-       "################\n"
-       "#######   s#####\n"
-       "####### ########\n"
-       "#######    #####\n"
-       "######     #####\n"
-       "######     #####\n"
-       "######     #####\n"
-       "###### ### #####\n"
-       "###### ### #####\n"
-       "######     #####\n"
-       "######## #######\n"
-       "################\n"
-       "################\n"
-       "################\n"
-       "################\n"
-       "################\n";
-
-static struct xvertex tm_floor[] __attribute__((section(".rodata"))) = {
-       {0x10000, -0x10000, 0x10000,    0, 0x10000, 0,  210},
-       {-0x10000, -0x10000, 0x10000,   0, 0x10000, 0,  210},
-       {-0x10000, -0x10000, -0x10000,  0, 0x10000, 0,  210},
-       {0x10000, -0x10000, -0x10000,   0, 0x10000, 0,  210}
-};
-
+static int32_t pos[2], angle;
+static struct voxscape *vox;
 
-static struct level *lvl;
+#define COLOR_HORIZON  0xcc77ff
+#define COLOR_ZENITH   0x5588cc
 
-static struct player player;
 
 
 struct screen *init_game_screen(void)
@@ -75,29 +46,16 @@ struct screen *init_game_screen(void)
 
 static int gamescr_start(void)
 {
-       int i;
-       uint16_t *cmap;
-
        gba_setmode(4, DISPCNT_BG2 | DISPCNT_OBJ | DISPCNT_FB1);
 
        vblperf_setcolor(1);
 
-       lvl = init_level(testlvl);
-
-       xgl_init();
-
-       init_player(&player, lvl);
-       player.phi = 0x100;
-
-       cmap = gba_bgpal;
-       *cmap++ = 0;
-       for(i=1; i<255; i++) {
-               *cmap++ = rand();
+       if(!(vox = vox_create(512, 512))) {
+               panic(get_pc(), "vox_create");
        }
-       *cmap = 0xffff;
-
+       vox_proj(vox, 45, 1, 250);
 
-       select_input(BN_DPAD | BN_A | BN_B);
+       /*select_input(BN_DPAD | BN_LT | BN_RT);*/
 
        nframes = 0;
        return 0;
@@ -114,8 +72,7 @@ static void gamescr_frame(void)
        backbuf = ++nframes & 1;
        fb = (unsigned char*)vram[backbuf];
 
-       polyfill_framebuffer(fb, 240, 160);
-       fillblock_16byte(fb, 0, 240 * 160 / 16);
+       vox_framebuf(vox, 240, 160, fb, -1);
 
        update();
        draw();
@@ -126,42 +83,48 @@ static void gamescr_frame(void)
        vblperf_begin();
 }
 
+#define WALK_SPEED     0x40000
+#define TURN_SPEED     0x100
+
 static void update(void)
 {
-       uint16_t bnstate;
+       int32_t fwd[2], right[2];
+       uint16_t input;
+
+       input = ~REG_KEYINPUT;
+
+       if(input & BN_LT) angle += TURN_SPEED;
+       if(input & BN_RT) angle -= TURN_SPEED;
 
-       bnstate = get_input();
+       fwd[0] = -SIN(angle);
+       fwd[1] = COS(angle);
+       right[0] = fwd[1];
+       right[1] = -fwd[0];
 
-       player_input(&player, bnstate);
+       if(input & BN_UP) {
+               pos[0] += fwd[0];
+               pos[1] += fwd[1];
+       }
+       if(input & BN_DOWN) {
+               pos[0] -= fwd[0];
+               pos[1] -= fwd[1];
+       }
+       if(input & BN_RIGHT) {
+               pos[0] += right[0];
+               pos[1] += right[1];
+       }
+       if(input & BN_LEFT) {
+               pos[0] -= right[0];
+               pos[1] -= right[1];
+       }
 
-       upd_vis(lvl, &player);
+       vox_view(vox, pos[0], pos[1], -30, angle);
 }
 
 static void draw(void)
 {
-       int i, x, y;
-       struct cell *cell;
-
-       xgl_load_identity();
-#ifndef BUILD_GBA
-       xgl_translate(0, 0, view_zoom);
-#endif
-       xgl_rotate_x(player.phi);
-       xgl_rotate_y(player.theta);
-       xgl_translate(player.x, 0, player.y);
-
-       for(i=0; i<lvl->numvis; i++) {
-               cell = lvl->vis[i];
-
-               x = (int32_t)(cell->x - player.cx) << 17;
-               y = -(int32_t)(cell->y - player.cy) << 17;
-
-               xgl_push_matrix();
-               xgl_translate(x, 0, y);
-               xgl_index(i + 1);
-               xgl_draw(XGL_QUADS, tm_floor, sizeof tm_floor / sizeof *tm_floor);
-               xgl_pop_matrix();
-       }
+       vox_render(vox);
+       vox_sky_grad(vox, COLOR_HORIZON, COLOR_ZENITH);
 }
 
 #ifdef BUILD_GBA