sound layer, bouncing

1 files changed, 28 insertions, 0 deletions

diff --git a/src/audio.c b/src/audio.c
new file mode 100644
index 0000000..ed25d4c
--- /dev/null
+++ b/src/audio.c
@@ -0,0 +1,28 @@
+#include "../include/audio.h"
+
+void play_sound(int channel, Mix_Chunk* wav) {
+	Mix_PlayChannel(channel, wav, 0);
+}
+
+void play_positioned_sound(int channel, Mix_Chunk* wav, vec3f pos, float max_audible_dist) {
+	player* p = get_player_by_id(player_id);
+	if (!p) return;
+
+	// calculate volume
+	int tiles_between_throwable_and_player = distance_between_3f((vec3f){.x = p->playerx, .y = p->playery, .z = p->height}, pos);
+	float volume = (tiles_between_throwable_and_player / max_audible_dist);
+	if (volume > 1.0f) volume = 1.0f;
+
+	// calculate angle
+	/*
+	float dirx = (throwables[i].position.x - p->playerx);
+	float diry = (throwables[i].position.y - p->playery);
+	float rads = atan2(diry, dirx) * 180.0f/M_PI;
+	if (rads < 0) rads = 360 + rads;
+	rads += 90;
+	if (rads > 360) rads -= 360;
+	*/
+
+	Mix_SetPosition(0, 0, volume*255);
+	Mix_PlayChannel(channel, wav, 0);
+}