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Train
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@cuckydev
cuckydev committed Aug 10, 2021
1 parent 7cd14e3 commit 850e020
Showing 1 changed file with 94 additions and 46 deletions.
140 changes: 94 additions & 46 deletions src/stage/week3.c
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,10 @@ typedef struct
//Window state
u8 win_r, win_g, win_b;
fixed_t win_time;

//Train state
fixed_t train_x;
u8 train_timer;
} Back_Week3;

//Week 3 background functions
Expand All @@ -33,6 +37,11 @@ static const u8 win_cols[][3] = {
{251, 166, 51},
};

#define TRAIN_START_X FIXED_DEC(500,1)
#define TRAIN_END_X FIXED_DEC(-8000,1)
#define TRAIN_TIME_A 6
#define TRAIN_TIME_B 14

void Back_Week3_Window(Back_Week3 *this)
{
const u8 *win_col = win_cols[RandomRange(0, COUNT_OF(win_cols) - 1)];
Expand All @@ -49,29 +58,29 @@ void Back_Week3_DrawBG(StageBack *back)
fixed_t fx, fy;

//Update window
this->win_time -= timer_dt;
if (this->win_time < 0)
this->win_time = 0;
if ((stage.flag & STAGE_FLAG_JUST_STEP) && (stage.song_step & 0xF) == 0)
if (this->win_time > 0)
{
this->win_time -= timer_dt;
if (this->win_time < 0)
this->win_time = 0;
}
if (stage.note_scroll >= 0 && (stage.flag & STAGE_FLAG_JUST_STEP) && (stage.song_step & 0xF) == 0)
Back_Week3_Window(this);

//Draw rooftop
fx = stage.camera.x;
fy = stage.camera.y;

static const RECT roof_src[] = {
{ 0, 0, 16, 256},
{ 16, 0, 55, 256},
{ 71, 0, 128, 256},
{199, 0, 55, 256},
{255, 0, 0, 256}
};
static const fixed_t roof_sc[] = {
FIXED_DEC(3,1)*7/10,
FIXED_DEC(1,1)*9/10,
FIXED_DEC(265,100)*7/10,
FIXED_DEC(1,1)*9/10,
FIXED_DEC(16,1)
static const struct Back_Week3_RoofPiece
{
RECT src;
fixed_t scale;
} roof_piece[] = {
{{ 0, 0, 16, 256}, FIXED_DEC(3,1) * 7 / 10},
{{ 16, 0, 55, 256}, FIXED_DEC(1,1) * 9 / 10},
{{ 71, 0, 128, 256}, FIXED_DEC(265,100) * 7 / 10},
{{199, 0, 55, 256}, FIXED_DEC(1,1) * 9 / 10},
{{255, 0, 0, 256}, FIXED_DEC(16,1)}
};

RECT_FIXED roof_dst = {
Expand All @@ -81,20 +90,51 @@ void Back_Week3_DrawBG(StageBack *back)
FIXED_DEC(220,1)
};

const RECT *roof_srcp = roof_src;
const fixed_t *roof_scp = roof_sc;

for (int i = 0; i < COUNT_OF(roof_src); i++, roof_srcp++, roof_scp++)
const struct Back_Week3_RoofPiece *roof_p = roof_piece;
for (int i = 0; i < COUNT_OF(roof_piece); i++, roof_p++)
{
roof_dst.w = (roof_srcp->w ? roof_srcp->w : 1) * *roof_scp;
Stage_DrawTex(&this->tex_back2, roof_srcp, &roof_dst, stage.camera.bzoom);
roof_dst.w = roof_p->src.w ? (roof_p->src.w * roof_p->scale) : roof_p->scale;
Stage_DrawTex(&this->tex_back2, &roof_p->src, &roof_dst, stage.camera.bzoom);
roof_dst.x += roof_dst.w;
}

RECT roof_fill = {0, SCREEN_HEIGHT * 2 / 3, SCREEN_WIDTH, SCREEN_HEIGHT * 1 / 3};
Gfx_DrawRect(&roof_fill, 49, 58, 115);

//Draw train
//Move train
if (this->train_x <= TRAIN_END_X)
{
//Reset train
if ((stage.flag & STAGE_FLAG_JUST_STEP) && (stage.song_step & 0x3) == 0)
{
if (--this->train_timer == 0)
{
this->train_x = TRAIN_START_X;
this->train_timer = RandomRange(TRAIN_TIME_A, TRAIN_TIME_B) << 2;
}
}
}
else
{
//Move train to end position
this->train_x -= timer_dt * 2000;

//Draw train
RECT train_src = {0, 0, 256, 256};
RECT_FIXED train_dst = {
this->train_x - fx,
FIXED_DEC(-65,1) - fy,
FIXED_DEC(285,1),
FIXED_DEC(120,1)
};

for (int i = 0; i < 32; i++, train_dst.x += train_dst.w)
{
if (train_dst.x >= (SCREEN_WIDTH2 << FIXED_SHIFT) || train_dst.x <= -(train_dst.w + (SCREEN_WIDTH2 << FIXED_SHIFT)))
continue;
Stage_DrawTex(&this->tex_back4, &train_src, &train_dst, stage.camera.bzoom);
}
}

//Draw arc
RECT arcl_src = {0, 0, 38, 121};
Expand All @@ -120,27 +160,31 @@ void Back_Week3_DrawBG(StageBack *back)
fx = stage.camera.x >> 1;
fy = stage.camera.y >> 1;

RECT lightl_src = {0, 0, 256, 132};
RECT_FIXED lightl_dst = {
FIXED_DEC(-175,1) - fx,
FIXED_DEC(-80,1) - fy,
FIXED_DEC(195,1),
FIXED_DEC(103,1)
};

RECT lightr_src = {0, 132, 256, 124};
RECT_FIXED lightr_dst = {
FIXED_DEC(98,1) - fx,
FIXED_DEC(-64,1) - fy,
FIXED_DEC(198,1),
FIXED_DEC(95,1)
};

u8 win_r = (((fixed_t)this->win_r * this->win_time) >> FIXED_SHIFT) / 6;
u8 win_g = (((fixed_t)this->win_g * this->win_time) >> FIXED_SHIFT) / 6;
u8 win_b = (((fixed_t)this->win_b * this->win_time) >> FIXED_SHIFT) / 6;
Stage_DrawTexCol(&this->tex_back1, &lightl_src, &lightl_dst, stage.camera.bzoom, win_r, win_g, win_b);
Stage_DrawTexCol(&this->tex_back1, &lightr_src, &lightr_dst, stage.camera.bzoom, win_r, win_g, win_b);
if (this->win_time >= 0)
{
RECT lightl_src = {0, 0, 256, 132};
RECT_FIXED lightl_dst = {
FIXED_DEC(-175,1) - fx,
FIXED_DEC(-80,1) - fy,
FIXED_DEC(195,1),
FIXED_DEC(103,1)
};

RECT lightr_src = {0, 132, 256, 124};
RECT_FIXED lightr_dst = {
FIXED_DEC(98,1) - fx,
FIXED_DEC(-64,1) - fy,
FIXED_DEC(198,1),
FIXED_DEC(95,1)
};

u8 win_r = (((fixed_t)this->win_r * this->win_time) >> FIXED_SHIFT) / 6;
u8 win_g = (((fixed_t)this->win_g * this->win_time) >> FIXED_SHIFT) / 6;
u8 win_b = (((fixed_t)this->win_b * this->win_time) >> FIXED_SHIFT) / 6;

Stage_DrawTexCol(&this->tex_back1, &lightl_src, &lightl_dst, stage.camera.bzoom, win_r, win_g, win_b);
Stage_DrawTexCol(&this->tex_back1, &lightr_src, &lightr_dst, stage.camera.bzoom, win_r, win_g, win_b);
}

//Draw buildings
RECT building_src = {0, 0, 255, 128};
Expand Down Expand Up @@ -209,7 +253,11 @@ StageBack *Back_Week3_New()
Mem_Free(arc_back);

//Initialize window state
Back_Week3_Window(this);
this->win_time = -1;

//Initialize train state
this->train_x = TRAIN_END_X;
this->train_timer = RandomRange(TRAIN_TIME_A, TRAIN_TIME_B) << 2;

return (StageBack*)this;
}

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