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Add attack

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main
Cameron Murphy Reikes 2 years ago
parent f306fe1a1c
commit 639f6fb4c9
3 changed files with 164 additions and 96 deletions
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4
assets.mdesk
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@ -10,6 +10,10 @@
{
filepath: "_Run.png",
}
@image knight_attack:
{
filepath: "_Attack.png",
}
@image animated_terrain:
{
filepath: "copyrighted/animated_terrain.png",

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assets/_Attack.png
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234
main.c
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@ -63,6 +63,7 @@ typedef struct AnimatedSprite
Vec2 start;
float horizontal_diff_btwn_frames;
Vec2 region_size;
bool no_wrap; // does not wrap when playing
} AnimatedSprite;
@ -234,15 +235,23 @@ AnimatedSprite knight_running =
.img = &image_knight_run,
.time_per_frame = 0.06,
.num_frames = 10,
.start =
{19.0f, 0.0f},
.start = {19.0f, 0.0f},
.horizontal_diff_btwn_frames = 120.0,
.region_size =
{80.0f, 80.0f},
.region_size = {80.0f, 80.0f},
};
sg_image image_font =
{0};
AnimatedSprite knight_attack =
{
.img = &image_knight_attack,
.time_per_frame = 0.06,
.num_frames = 4,
.start = {37.0f, 0.0f},
.horizontal_diff_btwn_frames = 120.0,
.region_size = {80.0f, 80.0f},
.no_wrap = true,
};
sg_image image_font = {0};
const float font_size = 32.0;
stbtt_bakedchar cdata[96]; // ASCII 32..126 is 95 glyphs
@ -256,8 +265,24 @@ static struct
sg_bindings bind;
} state;
Vec2 character_pos =
{0}; // world space point
typedef enum CharacterState
{
CHARACTER_WALKING,
CHARACTER_IDLE,
CHARACTER_ATTACK,
} CharacterState;
typedef struct Character
{
CharacterState state;
Vec2 pos;
bool facing_left;
// swinging
double swing_progress;
} Character;
Character player = {0};
void init(void)
{
@ -271,7 +296,7 @@ void init(void)
// player spawnpoint
Vec2 spawnpoint_tilecoord = MulV2F(level_level0.spawnpoint, 1.0/TILE_SIZE);
character_pos = tilecoord_to_world((TileCoord){(int)spawnpoint_tilecoord.X, (int)spawnpoint_tilecoord.Y});
player.pos = tilecoord_to_world((TileCoord){(int)spawnpoint_tilecoord.X, (int)spawnpoint_tilecoord.Y});
// load font
{
@ -612,10 +637,20 @@ void swap(Vec2 *p1, Vec2 *p2)
*p2 = tmp;
}
double anim_sprite_duration(AnimatedSprite *s)
{
return s->num_frames * s->time_per_frame;
}
void draw_animated_sprite(AnimatedSprite *s, double time, bool flipped, Vec2 pos, Color tint)
{
sg_image spritesheet_img = *s->img;
int index = (int)floor(time/s->time_per_frame) % s->num_frames;
if(s->no_wrap)
{
index = (int)floor(time/s->time_per_frame);
if(index >= s->num_frames) index = s->num_frames - 1;
}
Quad q = quad_centered(pos, s->region_size);
@ -758,15 +793,75 @@ void dbgrect(AABB rect)
line(q.ll, q.ul, line_width, col);
}
// returns new pos after moving and sliding against collidable things
Vec2 move_and_slide(Vec2 position, Vec2 movement_this_frame, Vec2 collision_aabb_size)
{
Vec2 new_pos = AddV2(position, movement_this_frame);
AABB at_new = centered_aabb(new_pos, collision_aabb_size);
Vec2 at_new_size_vector = SubV2(at_new.lower_right, at_new.upper_left);
Vec2 points_to_check[] = {
AddV2(at_new.upper_left, V2(0.0, 0.0)),
AddV2(at_new.upper_left, V2(at_new_size_vector.X, 0.0)),
AddV2(at_new.upper_left, V2(at_new_size_vector.X, at_new_size_vector.Y)),
AddV2(at_new.upper_left, V2(0.0, at_new_size_vector.Y)),
};
//dbgsquare(position);
//dbgsquare(at_new.upper_left);
//dbgsquare(at_new.lower_right);
for(int i = 0; i < sizeof(points_to_check)/sizeof(*points_to_check); i++)
{
Vec2 *it = &points_to_check[i];
TileCoord to_check = world_to_tilecoord(*it);
uint16_t tile_id = get_tile(&level_level0, to_check).kind;
if(tile_id == 53 || tile_id == 0 || tile_id == 367 || tile_id == 317 || tile_id == 313 || tile_id == 366 )
{
dbgsquare(tilecoord_to_world(to_check));
AABB to_depenetrate_from = tile_aabb(to_check);
while(overlapping(to_depenetrate_from, at_new))
{
//while(false)
{
//dbgsquare(to_depenetrate_from.upper_left);
//dbgsquare(to_depenetrate_from.lower_right);
const float move_dist = 0.05f;
Vec2 to_player = NormV2(SubV2(aabb_center(at_new), aabb_center(to_depenetrate_from)));
Vec2 compass_dirs[4] = {
V2( 1.0, 0.0),
V2(-1.0, 0.0),
V2(0.0, 1.0),
V2(0.0, -1.0),
};
int closest_index = -1;
float closest_dot = -99999999.0f;
for(int i = 0; i < 4; i++)
{
float dot = DotV2(compass_dirs[i], to_player);
if(dot > closest_dot)
{
closest_index = i;
closest_dot = dot;
}
}
Vec2 move_dir = compass_dirs[closest_index];
Vec2 move = MulV2F(move_dir, move_dist);
at_new.upper_left = AddV2(at_new.upper_left,move);
at_new.lower_right = AddV2(at_new.lower_right,move);
}
}
}
}
return aabb_center(at_new);
}
double time = 0.0;
double last_frame_processing_time = 0.0;
uint64_t last_frame_time;
Vec2 mouse_pos =
{0}; // in screen space
bool character_facing_left = false;
bool keydown[SAPP_KEYCODE_MENU] =
{0};
Vec2 mouse_pos = {0}; // in screen space
bool keydown[SAPP_KEYCODE_MENU] = {0};
#ifdef DEVTOOLS
bool mouse_frozen = false;
#endif
@ -788,6 +883,7 @@ void frame(void)
(float)keydown[SAPP_KEYCODE_D] - (float)keydown[SAPP_KEYCODE_A],
(float)keydown[SAPP_KEYCODE_W] - (float)keydown[SAPP_KEYCODE_S]
);
bool attack = keydown[SAPP_KEYCODE_J];
if(LenV2(movement) > 1.0)
{
movement = NormV2(movement);
@ -839,69 +935,7 @@ void frame(void)
}
#endif
Vec2 new_pos = AddV2(character_pos, MulV2F(movement, dt * pixels_per_meter * 4.0f));
Vec2 character_aabb_size = { TILE_SIZE, TILE_SIZE };
AABB at_new = centered_aabb(new_pos, character_aabb_size);
Vec2 at_new_size_vector = SubV2(at_new.lower_right, at_new.upper_left);
Vec2 points_to_check[] =
{
AddV2(at_new.upper_left, V2(0.0, 0.0)),
AddV2(at_new.upper_left, V2(at_new_size_vector.X, 0.0)),
AddV2(at_new.upper_left, V2(at_new_size_vector.X, at_new_size_vector.Y)),
AddV2(at_new.upper_left, V2(0.0, at_new_size_vector.Y)),
};
//dbgsquare(character_pos);
//dbgsquare(at_new.upper_left);
//dbgsquare(at_new.lower_right);
for(int i = 0; i < sizeof(points_to_check)/sizeof(*points_to_check); i++)
{
Vec2 *it = &points_to_check[i];
TileCoord to_check = world_to_tilecoord(*it);
uint16_t tile_id = get_tile(&level_level0, to_check).kind;
if(tile_id == 53 || tile_id == 0 || tile_id == 367 || tile_id == 317 || tile_id == 313 || tile_id == 366)
{
dbgsquare(tilecoord_to_world(to_check));
AABB to_depenetrate_from = tile_aabb(to_check);
while(overlapping(to_depenetrate_from, at_new))
{
//while(false)
{
//dbgsquare(to_depenetrate_from.upper_left);
//dbgsquare(to_depenetrate_from.lower_right);
const float move_dist = 0.05f;
Vec2 to_player = NormV2(SubV2(aabb_center(at_new), aabb_center(to_depenetrate_from)));
Vec2 compass_dirs[4] = {
V2( 1.0, 0.0),
V2(-1.0, 0.0),
V2(0.0, 1.0),
V2(0.0, -1.0),
};
int closest_index = -1;
float closest_dot = -99999999.0f;
for(int i = 0; i < 4; i++)
{
float dot = DotV2(compass_dirs[i], to_player);
if(dot > closest_dot)
{
closest_index = i;
closest_dot = dot;
}
}
Vec2 move_dir = compass_dirs[closest_index];
Vec2 move = MulV2F(move_dir, move_dist);
at_new.upper_left = AddV2(at_new.upper_left,move);
at_new.lower_right = AddV2(at_new.lower_right,move);
}
}
}
}
character_pos = aabb_center(at_new);
cam.pos = LerpV2(cam.pos, dt*8.0f, MulV2F(character_pos, -1.0f * cam.scale));
//if(LengthV2(movement) > 0.01 && player.state == CHARACTER_)
#ifdef DEVTOOLS
dbgsquare(screen_to_world(mouse_pos));
@ -916,7 +950,7 @@ void frame(void)
// line test
{
dbgline(character_pos, screen_to_world(mouse_pos));
dbgline(player.pos, screen_to_world(mouse_pos));
}
// debug draw font image
@ -939,7 +973,7 @@ void frame(void)
#if 0
const char *text = "great idea\nother idea";
// measure text
Vec2 pos = character_pos;
Vec2 pos = player.pos;
{
AABB bounds = draw_text(true, true, text, strlen(text), pos, WHITE);
@ -954,16 +988,46 @@ void frame(void)
#endif // devtools
if(fabsf(movement.X) > 0.01f) character_facing_left = movement.X < 0.0f;
Vec2 character_sprite_pos = AddV2(character_pos, V2(0.0, 20.0f));
if(LenV2(movement) > 0.01)
// player character
{
draw_animated_sprite(&knight_running, time, character_facing_left, character_sprite_pos, WHITE);
} else
Vec2 character_sprite_pos = AddV2(player.pos, V2(0.0, 20.0f));
if(attack && (player.state == CHARACTER_IDLE || player.state == CHARACTER_WALKING))
{
draw_animated_sprite(&knight_idle, time, character_facing_left, character_sprite_pos, WHITE);
player.state = CHARACTER_ATTACK;
player.swing_progress = 0.0;
}
cam.pos = LerpV2(cam.pos, dt*8.0f, MulV2F(player.pos, -1.0f * cam.scale));
if(player.state == CHARACTER_WALKING)
{
player.pos = move_and_slide(player.pos, MulV2F(movement, dt * pixels_per_meter * 4.0f), V2(TILE_SIZE, TILE_SIZE));
draw_animated_sprite(&knight_running, time, player.facing_left, character_sprite_pos, WHITE);
if(LenV2(movement) == 0.0)
{
player.state = CHARACTER_IDLE;
}
else
{
player.facing_left = movement.X < 0.0f;
}
}
else if(player.state == CHARACTER_IDLE)
{
draw_animated_sprite(&knight_idle, time, player.facing_left, character_sprite_pos, WHITE);
if(LenV2(movement) > 0.01) player.state = CHARACTER_WALKING;
}
else if(player.state == CHARACTER_ATTACK)
{
player.swing_progress += dt;
draw_animated_sprite(&knight_attack, player.swing_progress, player.facing_left, character_sprite_pos, WHITE);
if(player.swing_progress > anim_sprite_duration(&knight_attack))
{
player.state = CHARACTER_IDLE;
}
}
}
sg_end_pass();
sg_commit();

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