fac7085056
Introduce moon01.lvl as the starting level — a pure jump-and-run intro with no gun and no enemies, just platforming over gaps and dodging falling asteroids. The player picks up their gun upon transitioning to level01. New features: - Moon tileset and PARALLAX_STYLE_MOON with crater terrain backgrounds - Asteroid entity (ENT_ASTEROID): falls from sky, damages on contact, explodes on ground with particles, respawns after delay - PLAYER_UNARMED directive disables gun for the level - Pit rescue mechanic: falling costs 1 HP and auto-dashes upward - Gun powerup entity type for future armed-pickup levels - Segment-based procedural level generator with themed rooms - Extended editor with entity palette and improved tile cycling - Web shell improvements for Emscripten builds
59 lines
2.4 KiB
C
59 lines
2.4 KiB
C
#ifndef JNR_PARALLAX_H
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#define JNR_PARALLAX_H
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#include <SDL2/SDL.h>
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#include <stdbool.h>
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#include "config.h"
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/* Forward declarations */
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typedef struct Camera Camera;
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/* A single parallax layer */
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typedef struct ParallaxLayer {
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SDL_Texture *texture; /* the background image */
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int tex_w, tex_h; /* texture dimensions in pixels */
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float scroll_x; /* horizontal scroll factor (0=fixed, 1=full) */
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float scroll_y; /* vertical scroll factor */
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bool active; /* whether this layer is in use */
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bool owns_texture; /* true if we generated it (must free) */
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} ParallaxLayer;
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/* Parallax background system — up to two layers */
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typedef struct Parallax {
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ParallaxLayer far_layer; /* distant background (stars) */
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ParallaxLayer near_layer; /* mid-ground background (nebula) */
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} Parallax;
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/* Initialize parallax (zeroes everything) */
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void parallax_init(Parallax *p);
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/* Set a layer from an existing texture (loaded via assets) */
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void parallax_set_far(Parallax *p, SDL_Texture *tex, float scroll_x, float scroll_y);
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void parallax_set_near(Parallax *p, SDL_Texture *tex, float scroll_x, float scroll_y);
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/* Generate procedural starfield texture (far layer) */
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void parallax_generate_stars(Parallax *p, SDL_Renderer *renderer);
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/* Generate procedural nebula/dust texture (near layer) */
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void parallax_generate_nebula(Parallax *p, SDL_Renderer *renderer);
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/* Themed parallax generation styles */
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typedef enum ParallaxStyle {
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PARALLAX_STYLE_DEFAULT, /* generic space (same as stars+nebula) */
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PARALLAX_STYLE_ALIEN_SKY, /* alien planet surface: dusty, hazy */
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PARALLAX_STYLE_INTERIOR, /* indoor base: panels, pipes, structural */
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PARALLAX_STYLE_DEEP_SPACE, /* space station windows: vivid stars */
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PARALLAX_STYLE_MOON, /* moon surface: craters, grey terrain */
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} ParallaxStyle;
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/* Generate both layers with a unified style */
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void parallax_generate_themed(Parallax *p, SDL_Renderer *renderer, ParallaxStyle style);
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/* Render both layers (call before tile/entity rendering) */
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void parallax_render(const Parallax *p, const Camera *cam, SDL_Renderer *renderer);
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/* Free generated textures (not file-loaded ones — asset manager owns those) */
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void parallax_free(Parallax *p);
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#endif /* JNR_PARALLAX_H */
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