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first shity collision system

This commit is contained in:
_N3m0 2024-03-28 11:28:49 +01:00
parent c129a617b4
commit 630d204b0c
2 changed files with 45 additions and 8 deletions
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data/map_collision.png Normal file
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53
main.c
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@ -59,6 +59,7 @@ Vec2i player;
const int player_radius = 25;
const int player_speed = 5;
Image map_collision;
Texture map;
Vector2 map_coord;
const float map_factor = 2.0f;
@ -244,6 +245,24 @@ Vector2 Vector2_cast(Vec2i vec)
return v;
}
int circle_collision(Image map, Vec2i coord, float radius)
{
int count = 0;
for (
int x=MAX(0, MIN((coord.x-radius)/map_factor, map.width-1));
x<MAX(0, MIN((coord.x+radius)/map_factor, map.width-1));
x++) {
for (
int y=MAX(0, MIN((coord.y-radius)/map_factor, map.height-1));
y<MAX(0, MIN((coord.y+radius)/map_factor, map.height-1));
y++) {
Color c = *(Color*)(map.data + sizeof(c)*map.width*y + sizeof(c)*x);
count += c.r == 255 && c.b == 255 && c.g == 255 && c.a == 255;
}
}
return count;
}
int main(void)
{
SetTraceLogLevel(LOG_ERROR);
@ -253,7 +272,9 @@ int main(void)
player = (Vec2i) {.x = screen.width/2, .y = screen.height/2};
player_t = LoadTexture("data/player.png");
map = LoadTexture("data/map2.png");
map_collision = LoadImage("data/map_collision.png");
map = LoadTexture("data/map_collision.png");
ImageFormat(&map_collision, PIXELFORMAT_UNCOMPRESSED_R8G8B8A8);
map_coord = (Vector2){
screen.width/2 - map.width*map_factor/2,
screen.height/2 - map.height*map_factor/2,
@ -272,24 +293,31 @@ int main(void)
if (IsWindowResized())
handle_resize_window();
if (!move_player_inside_trap(&player, trap, player_speed, DT)) {
Cardinal direction = snap_player_inside_trap(&player, trap);
move_map(&map_coord, direction, player_speed, DT);
}
// map
DrawTextureEx(map, map_coord, 0.0f, map_factor, WHITE);
Vector2 mouse = GetMousePosition();
float angle = vector_angle((Vector2){player.x, player.y}, mouse);
Vec2i old_player = player;
Vector2 old_map_coord = map_coord;
if (!move_player_inside_trap(&player, trap, player_speed, DT)) {
Cardinal direction = snap_player_inside_trap(&player, trap);
move_map(&map_coord, direction, player_speed, DT);
}
Vec2i player_map = screen_to_map_coord(player);
if (IsMouseButtonDown(MOUSE_BUTTON_LEFT)) {
if (circle_collision(map_collision, player_map, player_radius)) {
player = old_player;
map_coord = old_map_coord;
}
if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT)) {
bullets[bullet_index] = (Bullet) {
.coord = move_forward_angle(
Vector2_cast(player_map),
angle + 90, player_t.width/27
angle + 90, player_radius
),
.angle = -angle,
.lifetime = 5.0f,
@ -311,6 +339,13 @@ int main(void)
b->angle, WHITE
);
b->coord = move_forward_angle(b->coord, 90-b->angle, 27.0f);
int collision = circle_collision(
map_collision, Vec2i_cast(b->coord), bullet.height/2
);
if (collision) {
b->lifetime = -1.0f;
}
}
}
@ -333,6 +368,8 @@ int main(void)
(Vector2) {player_t.width/2, player_t.height/2},
450 - angle, WHITE
);
DrawCircleV(Vector2_cast(player), player_radius, BLUE);
}
EndDrawing();
}