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Make zbuffer 8bit

This commit is contained in:
Miloslav Číž 2019-10-07 22:19:45 +02:00
parent 1a50896685
commit ed9ac12345
1 changed files with 11 additions and 7 deletions
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18
main.c
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@ -131,7 +131,9 @@ void SFG_init();
#define SFG_GRAVITY_SPEED_INCREASE_PER_FRAME 1 #define SFG_GRAVITY_SPEED_INCREASE_PER_FRAME 1
#endif #endif
uint16_t SFG_zBuffer[SFG_GAME_RESOLUTION_X]; uint8_t SFG_zBuffer[SFG_GAME_RESOLUTION_X];
#define SFG_RCL_UNIT_TO_Z_BUFFER(x) (x / RCL_UNITS_PER_SQUARE)
/** /**
Step in which walls get higher, in raycastlib units. Step in which walls get higher, in raycastlib units.
@ -308,7 +310,7 @@ void SFG_pixelFunc(RCL_PixelInfo *pixel)
uint8_t shadow = 0; uint8_t shadow = 0;
if (pixel->position.y == SFG_GAME_RESOLUTION_Y / 2) if (pixel->position.y == SFG_GAME_RESOLUTION_Y / 2)
SFG_zBuffer[pixel->position.x] = pixel->depth; SFG_zBuffer[pixel->position.x] = SFG_RCL_UNIT_TO_Z_BUFFER(pixel->depth);
if (pixel->isHorizon && pixel->depth > RCL_UNITS_PER_SQUARE * 16) if (pixel->isHorizon && pixel->depth > RCL_UNITS_PER_SQUARE * 16)
{ {
@ -483,9 +485,11 @@ void SFG_drawScaledSprite(
#undef PRECOMP_SCALE #undef PRECOMP_SCALE
uint8_t zDistance = SFG_RCL_UNIT_TO_Z_BUFFER(distance);
for (int16_t x = x0, u = u0; x <= x1; ++x, ++u) for (int16_t x = x0, u = u0; x <= x1; ++x, ++u)
{ {
if (SFG_zBuffer[x] > distance) if (SFG_zBuffer[x] > zDistance)
{ {
int8_t columnTransparent = 1; int8_t columnTransparent = 1;
@ -497,9 +501,9 @@ void SFG_drawScaledSprite(
if (color != SFG_TRANSPARENT_COLOR) if (color != SFG_TRANSPARENT_COLOR)
{ {
#if SFG_DIMINISH_SPRITES #if SFG_DIMINISH_SPRITES
color = palette_minusValue(color,minusValue); color = palette_minusValue(color,minusValue);
#endif #endif
columnTransparent = 0; columnTransparent = 0;
@ -508,7 +512,7 @@ void SFG_drawScaledSprite(
} }
if (!columnTransparent) if (!columnTransparent)
SFG_zBuffer[x] = distance; SFG_zBuffer[x] = zDistance;
} }
} }
} }
@ -884,7 +888,7 @@ void SFG_gameStep()
void SFG_draw() void SFG_draw()
{ {
for (uint16_t i = 0; i < SFG_GAME_RESOLUTION_X; ++i) for (uint16_t i = 0; i < SFG_GAME_RESOLUTION_X; ++i)
SFG_zBuffer[i] = 65535; SFG_zBuffer[i] = 255;
RCL_renderComplex( RCL_renderComplex(
SFG_player.camera, SFG_player.camera,