mirror of https://github.com/nmlgc/ReC98.git
66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
#define CURVEBULLET_W 32
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#define CURVEBULLET_H 32
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#define CURVEBULLET_TRAIL_NODE_COUNT 16
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#define CURVEBULLET_COUNT 7
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enum curvebullet_flag_t {
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CBF_FREE = 0,
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CBF_SLOWDOWN = 1,
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CBF_SPEEDUP = 2,
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_curvebullet_flag_t_FORCE_UINT8 = 0xFF
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};
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// Defines the [col] instead of the (automatically calculated) [sprite].
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typedef struct {
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curvebullet_flag_t flag;
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unsigned char angle;
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PlayfieldMotion pos;
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unsigned int age; // unused and broken, because it's never reset
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int16_t unused_2;
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int col;
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int32_t unused_3;
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SubpixelLength8 speed;
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int8_t padding;
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} curvebullet_template_t;
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typedef struct {
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curvebullet_flag_t flag; // unused here
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unsigned char angle;
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PlayfieldMotion pos;
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unsigned int age;
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int16_t unused_1;
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int sprite;
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int32_t unused_2;
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SubpixelLength8 speed;
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int8_t padding;
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} curvebullet_head_t;
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typedef struct {
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curvebullet_flag_t flag;
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char col;
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PlayfieldPoint node_pos[CURVEBULLET_TRAIL_NODE_COUNT];
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unsigned char node_sprite[CURVEBULLET_TRAIL_NODE_COUNT];
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} curvebullet_trail_t;
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#define curvebullet_template \
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(reinterpret_cast<curvebullet_template_t &>(custom_entities[0]))
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#define curvebullet_heads \
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(reinterpret_cast<curvebullet_head_t *>(&custom_entities[1]))
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extern curvebullet_trail_t curvebullet_trails[CURVEBULLET_COUNT + 1];
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// Puts the given curve bullet [sprite] (between 0 and BULLET_D_CELS) at the
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// given position. Assumptions:
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// • ES is already be set to the beginning of a VRAM segment
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// • The GRCG is active, and set to the intended color
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// Beware, [top] is actually interpreted as an unsigned screen-space
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// coordinate! [top] must therefore be between 0 and (RES_Y - 1).
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void __fastcall near curvebullet_put(
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uscreen_x_t left, uscreen_y_t top, int sprite
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);
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void near curvebullets_add();
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void near curvebullets_update();
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void pascal near curvebullets_render();
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