102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
#include "draw.h"
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extern game_state_t* gs;
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extern game_assets_t* g_assets;
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// draw level at current view
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void Draw_World( SDL_Renderer* r ) {
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SDL_Rect dst = {0,0,320,200};
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// solid BG fill
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SDL_RenderCopy( r, g_assets->tile_tx[0], NULL, &dst );
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// draw level view 20x10 tiles at 16x16px offset one tile in y
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for ( int j = 0; j < 10; ++j ) {
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dst.y = TILE_SIZE + j * TILE_SIZE;
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dst.w = TILE_SIZE; dst.h = TILE_SIZE;
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for ( int i = 0; i < 20; ++i ) {
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dst.x = i * TILE_SIZE;
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uint8_t til = gs->levels[gs->current_level].tiles[j * 100 + gs->view_x + i];
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if ( til == 0 ) continue;
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SDL_RenderCopy( r, g_assets->tile_tx[til], NULL, &dst );
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}
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}
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}
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// draw player
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void Draw_Player( SDL_Renderer* r ) {
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SDL_Rect dst;
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// relative to view
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dst.x = gs->ps.px - gs->view_x * TILE_SIZE;
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dst.y = TILE_SIZE + gs->ps.py;
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// tile 56 neutral, 53 right, 57 left 20x16px
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uint8_t til = 56;
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dst.w = 20; dst.h = 16;
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// jetpack tile
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if ( gs->ps.do_jetpack )
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til = gs->ps.last_dir >= 0 ? 77 : 80;
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// grounded walk tile
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else if ( gs->ps.on_ground ) {
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til = gs->ps.last_dir >= 0 ? 53 : 57;
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}
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// jump tile
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else if ( gs->ps.do_jump || !gs->ps.on_ground )
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til = gs->ps.last_dir >= 0 ? 67 : 68;
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// render
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// grounded debug
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if ( gs->ps.on_ground ) {
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SDL_SetRenderDrawColor( r, 255, 0, 255, 255 );
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SDL_RenderDrawLine( r, dst.x, dst.y+dst.h, dst.x+dst.w, dst.y+dst.h );
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}
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SDL_RenderCopy( r, g_assets->tile_tx[til], NULL, &dst );
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}
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// draw player bullet
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void Draw_Bullet( SDL_Renderer* r ) {
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SDL_Rect dst;
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if ( gs->ps.bullet_px && gs->ps.bullet_py ) {
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// relative to view
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dst.x = gs->ps.bullet_px - gs->view_x * TILE_SIZE;
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dst.y = TILE_SIZE + gs->ps.bullet_py;
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// tile 127 right, 128 left
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uint8_t til = gs->ps.bullet_dir > 0 ? 127 : 128;
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dst.w = 12; dst.h = 3;
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// render
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SDL_RenderCopy( r, g_assets->tile_tx[til], NULL, &dst );
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}
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}
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// draw monsters
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void Draw_Monsters( SDL_Renderer* r ) {
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SDL_Rect dst;
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uint8_t til = 0;
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for ( int i = 0; i < sizeof(gs->ms) / sizeof(gs->ms[0]); ++i ) {
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monster_state_t* m = &gs->ms[i];
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if ( m->type ) {
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dst.x = m->px - gs->view_x * TILE_SIZE - 12;
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dst.y = TILE_SIZE + m->py - 10;
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dst.w = 24; dst.h = 20;
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til = m->type;
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SDL_RenderCopy( r, g_assets->tile_tx[til], NULL, &dst );
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}
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}
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}
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// monster bullets
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void Draw_MonsterBullet( SDL_Renderer* r ) {
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SDL_Rect dst;
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if ( gs->mbullet_px && gs->mbullet_py ) {
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// relative to view
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dst.x = gs->mbullet_px - gs->view_x * TILE_SIZE;
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dst.y = TILE_SIZE + gs->mbullet_py;
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// tile 127 right, 128 left
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uint8_t til = gs->mbullet_dir > 0 ? 121 : 124;
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dst.w = 20; dst.h = 3;
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// render
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SDL_RenderCopy( r, g_assets->tile_tx[til], NULL, &dst );
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}
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}
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